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1798 lines
58 KiB
1798 lines
58 KiB
#!/bin/bash
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#:-
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. /etc/shlib
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#:-
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include pretty
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include parse
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depends shyaml docker
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[[ "${BASH_SOURCE[0]}" != "${0}" ]] && SOURCED=true
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export VARDIR=/var/lib/compose
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usage="$exname CHARM"'
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Deploy and manage a swarm of containers to provide services based on
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a ``compose.yml`` definition and charms from a ``charm-store``.
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'
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export DEFAULT_COMPOSE_FILE
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##
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## Merge YAML files
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##
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_merge_yaml_common_code="
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import sys
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import yaml
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try:
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# included in standard lib from Python 2.7
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from collections import OrderedDict
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except ImportError:
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# try importing the backported drop-in replacement
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# it's available on PyPI
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from ordereddict import OrderedDict
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## Ensure that there are no collision with legacy OrderedDict
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## that could be used for omap for instance.
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class MyOrderedDict(OrderedDict):
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pass
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yaml.add_representer(
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MyOrderedDict,
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lambda cls, data: cls.represent_dict(data.items()))
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yaml.add_constructor(
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yaml.resolver.BaseResolver.DEFAULT_MAPPING_TAG,
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lambda cls, node: MyOrderedDict(cls.construct_pairs(node)))
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def fc(filename):
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with open(filename) as f:
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return f.read()
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def merge(*args):
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# sys.stderr.write('%r\n' % (args, ))
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args = [arg for arg in args if arg is not None]
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if len(args) == 0:
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return None
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if len(args) == 1:
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return args[0]
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if all(isinstance(arg, (int, basestring, bool)) for arg in args):
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return args[-1]
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elif all(isinstance(arg, list) for arg in args):
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res = []
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for arg in args:
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res.extend(arg)
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return res
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elif all(isinstance(arg, dict) for arg in args):
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keys = set()
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for arg in args:
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keys |= set(arg.keys())
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dct = {}
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for key in keys:
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sub_args = []
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for arg in args:
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if key in arg:
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sub_args.append(arg)
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try:
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dct[key] = merge(*(a[key] for a in sub_args))
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except NotImplementedError as e:
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raise NotImplementedError(
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e.args[0],
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'%s.%s' % (key, e.args[1]) if e.args[1] else key,
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e.args[2])
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if dct[key] is None:
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del dct[key]
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return dct
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else:
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raise NotImplementedError(
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'Unsupported types: %s'
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% (', '.join(list(set(arg.__class__.__name__ for arg in args)))), '', args)
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return None
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def merge_cli(*args):
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try:
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c = merge(*args)
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except NotImplementedError as e:
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sys.stderr.write('%s. Conflicting key is %r. Values are:\n%s\n' % (e.args[0], e.args[1], e.args[2]))
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exit(1)
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if c is not None:
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print '%s' % yaml.dump(c, default_flow_style=False)
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"
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merge_yaml() {
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if ! [ -r "$state_tmpdir/merge_yaml.py" ]; then
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cat <<EOF > "$state_tmpdir/merge_yaml.py"
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$_merge_yaml_common_code
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merge_cli(*(yaml.load(fc(f)) for f in sys.argv[1:]))
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EOF
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fi
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python "$state_tmpdir/merge_yaml.py" "$@"
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}
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export -f merge_yaml
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merge_yaml_str() {
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local entries="$@"
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if ! [ -r "$state_tmpdir/merge_yaml_str.py" ]; then
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cat <<EOF > "$state_tmpdir/merge_yaml_str.py"
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$_merge_yaml_common_code
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merge_cli(*(yaml.load(f) for f in sys.argv[1:]))
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EOF
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fi
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python "$state_tmpdir/merge_yaml_str.py" "$@"
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}
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export -f merge_yaml_str
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yaml_key_val_str() {
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local entries="$@"
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if ! [ -r "$state_tmpdir/yaml_key_val_str.py" ]; then
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cat <<EOF > "$state_tmpdir/yaml_key_val_str.py"
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$_merge_yaml_common_code
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print '%s' % yaml.dump({
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yaml.load(sys.argv[1]):
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yaml.load(sys.argv[2])}, default_flow_style=False)
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EOF
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fi
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python "$state_tmpdir/yaml_key_val_str.py" "$@"
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}
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export -f yaml_key_val_str
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##
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## Functions
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##
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docker_has_image() {
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local image="$1"
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images=$(docker images -q "$image" 2>/dev/null) || {
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err "docker images call has failled unexpectedly."
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return 1
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}
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[ "$images" ]
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}
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export -f docker_has_image
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gen_password() {
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python -c 'import random; \
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xx = "azertyuiopqsdfghjklmwxcvbn1234567890AZERTYUIOPQSDFGHJKLMWXCVBN+_-"; \
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print "".join([xx[random.randint(0, len(xx)-1)] for x in range(0, 14)])'
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}
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export -f gen_password
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file_put() {
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local TARGET="$1"
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mkdir -p "$(dirname "$TARGET")" &&
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cat - > "$TARGET"
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}
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export -f file_put
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_get_docker_compose_links() {
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local service="$1" cache_file="$state_tmpdir/$FUNCNAME.cache.$(echo "$*" | md5_compat)" \
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links charm charm_part master_charm
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if [ -z "$service" ]; then
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print_syntax_error "$FUNCNAME: Please specify a service as first argument."
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return 1
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fi
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if [ -e "$cache_file" ]; then
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# debug "$FUNCNAME: cache hit ($*)"
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cat "$cache_file"
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return 0
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fi
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master_charm=$(_get_top_master_charm_for_service "$service") || return 1
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deps=()
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while read-0 relation_name target_service relation_config tech_dep; do
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master_target_charm="$(_get_top_master_charm_for_service "$target_service")"
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[ "$master_charm" == "$master_target_charm" ] && continue
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if [ "$tech_dep" == "reversed" ]; then
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deps+=("$(echo -en "$master_target_charm:\n links:\n - $master_charm")")
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elif [ "$tech_dep" == "True" ]; then
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deps+=("$(echo -en "$master_charm:\n links:\n - $master_target_charm")")
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fi
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done < <(get_compose_relations "$service") || return 1
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merge_yaml_str "${deps[@]}" | tee "$cache_file"
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}
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##
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## By Reading the metadata.yml, we create a docker-compose.yml mixin.
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## Some metadata.yml (of subordinates) will indeed modify other
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## services than themselves.
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_get_docker_compose_service_mixin() {
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local service="$1" cache_file="$state_tmpdir/$FUNCNAME.cache.$(echo "$*" | md5_compat)" links charm charm_part
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if [ -z "$service" ]; then
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print_syntax_error "$FUNCNAME: Please specify a service as first argument."
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return 1
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fi
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if [ -e "$cache_file" ]; then
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# debug "$FUNCNAME: cache hit ($*)"
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cat "$cache_file"
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return 0
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fi
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master_charm=$(_get_top_master_charm_for_service "$service") || return 1
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## The compose part
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links_yaml=$(_get_docker_compose_links "$service") || return 1
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## the charm part
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#debug "Get charm name from service name $DARKYELLOW$service$NORMAL."
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charm=$(get_service_charm "$service") || return 1
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charm_part=$(get_docker_compose_mixin_from_metadata "$charm") || return 1
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## Merge results
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if [ "$charm_part" ]; then
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charm_yaml="$(yaml_key_val_str "$master_charm" "$charm_part")" || return 1
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merge_yaml_str "$links_yaml" "$charm_yaml"
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else
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echo "$links_yaml"
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fi > "$cache_file"
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cat "$cache_file"
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}
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export -f _get_docker_compose_service_mixin
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##
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## Get full `docker-compose.yml` format for all listed services (and
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## their deps)
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##
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## @export
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## @cache: !system !nofail +stdout
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get_docker_compose () {
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local cache_file="$state_tmpdir/$FUNCNAME.cache.$(echo "$*" | md5_compat)" entries services service
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if [ -e "$cache_file" ]; then
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# debug "$FUNCNAME: cache hit ($*)"
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cat "$cache_file"
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return 0
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fi
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##
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## Adding sub services configurations
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##
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declare -A entries
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debug "Compiling 'docker-compose.conf' for $DARKYELLOW$@$NORMAL..."
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for target_service in "$@"; do
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services=$(get_ordered_service_dependencies "$target_service") || return 1
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debug "$DARKYELLOW$target_service$NORMAL deps:$DARKYELLOW" $services "$NORMAL"
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for service in $services; do
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if [ "${entries[$service]}" ]; then
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## Prevent double inclusion of same service if this
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## service is deps of two or more of your
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## requirements.
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continue
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fi
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## mark the service as "loaded" as well as it's containers
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## if this is a subordinate service
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entries[$service]=$(_get_docker_compose_service_mixin "$service") || return 1
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done
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done
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merge_yaml_str "${entries[@]}" > "$cache_file"
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export _current_docker_compose="$(cat "$cache_file")"
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echo "$_current_docker_compose"
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debug " ... Compilation of base 'docker-compose.conf' done." || true
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# debug " ** ${WHITE}docker-compose.conf${NORMAL}:"
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# debug "$_current_docker_compose"
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}
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export -f get_docker_compose
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## XXXvlab: a lot to be done to cache the results
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get_compose_service_def () {
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local service="$1" cache_file="$state_tmpdir/$FUNCNAME.cache.$(echo "$*" | md5_compat)"
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if [ -e "$cache_file" ]; then
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# debug "$FUNCNAME: cache hit ($*)"
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cat "$cache_file"
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return 0
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fi
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[ -z "$service" ] && print_syntax_error "Missing service as first argument."
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service_def_base=
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if [ -d "$CHARM_STORE/$service" ]; then
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service_def_base="charm: $service"
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fi
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value=
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if [ -r "$COMPOSE_YML_FILE" ]; then
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value=$(shyaml get-value "$service" 2>/dev/null < "$COMPOSE_YML_FILE")
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fi
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if [ -z "$service_def_base" -a -z "$value" ]; then
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err "Invalid service $DARKYELLOW$service$NORMAL: no definition in" \
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"compose file nor charm with same name."
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return 1
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fi
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merge_yaml <(echo "$service_def_base") <(echo "$value") > "$cache_file"
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cat "$cache_file"
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}
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export -f get_compose_service_def
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get_service_charm () {
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local service="$1" cache_file="$state_tmpdir/$FUNCNAME.cache.$(echo "$*" | md5_compat)"
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if [ -e "$cache_file" ]; then
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# debug "$FUNCNAME: cache hit ($*)"
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cat "$cache_file"
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return 0
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fi
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if [ -z "$service" ]; then
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print_syntax_error "$FUNCNAME: Please specify a service as first argument."
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return 1
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fi
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service_def=$(get_compose_service_def "$service") || return 1
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charm=$(echo "$service_def" | shyaml get-value charm 2>/dev/null)
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if [ -z "$charm" ]; then
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err "Missing charm in service $DARKYELLOW$service$NORMAL definition."
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return 1
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fi
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echo "$charm" | tee "$cache_file"
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}
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export -f get_service_charm
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## built above the docker-compose abstraction, so it relies on the
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## full docker-compose.yml to be already built.
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get_service_def () {
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local service="$1" def
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if [ -z "$_current_docker_compose" ]; then
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print_syntax_error "$FUNCNAME is meant to be called after"\
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"\$_current_docker_compose has been calculated."
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fi
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def=$(echo "$_current_docker_compose" | shyaml get-value "$service" 2>/dev/null)
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if [ -z "$def" ]; then
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err "No definition for service $DARKYELLOW$service$NORMAL in compiled 'docker-compose.conf'."
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return 1
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fi
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echo "$def"
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}
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export -f get_service_def
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|
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## Return the base docker image name of a service
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service_base_docker_image() {
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local service="$1" cache_file="$state_tmpdir/$FUNCNAME.cache.$(echo "$*" | md5_compat)" \
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master_charm charm service_image service_build service_dockerfile
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if [ -e "$cache_file" ]; then
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# debug "$FUNCNAME: cache hit ($*)"
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cat "$cache_file"
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return 0
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fi
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master_charm="$(_get_top_master_charm_for_service "$service")" || {
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err "Could not compute base charm for service $DARKYELLOW$service$NORMAL."
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return 1
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}
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service_def="$(get_service_def "$master_charm")" || {
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err "Could not get docker-compose service definition for $DARKYELLOW$master_charm$NORMAL."
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return 1
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}
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service_image=$(echo "$service_def" | shyaml get-value image 2>/dev/null)
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if [ "$?" != 0 ]; then
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service_build=$(echo "$service_def" | shyaml get-value build 2>/dev/null)
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if [ "$?" != 0 ]; then
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err "Service $DARKYELLOW$service$NORMAL has no ${WHITE}image${NORMAL} nor ${WHITE}build${NORMAL} parameter."
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echo "$service_def" >&2
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return 1
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fi
|
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service_dockerfile="$CHARM_STORE/${service_build}/Dockerfile"
|
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if ! [ -e "$service_dockerfile" ]; then
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err "No Dockerfile found in '$service_dockerfile' location."
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return 1
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fi
|
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|
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grep '^FROM' "$service_dockerfile" | xargs echo | cut -f 2 -d " "
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else
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echo "$service_image"
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fi | tee "$cache_file"
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}
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export -f service_base_docker_image
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|
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## XXXvlab: provided in shlib/common
|
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# read-0() {
|
|
# local eof
|
|
# eof=
|
|
# while [ "$1" ]; do
|
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# IFS='' read -r -d '' "$1" || eof=true
|
|
# shift
|
|
# done
|
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# test "$eof" != true
|
|
# }
|
|
# export -f read-0
|
|
|
|
fetch_file() {
|
|
local src="$1"
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|
|
|
case "$src" in
|
|
*"://"*)
|
|
err "Unsupported target scheme."
|
|
return 1
|
|
;;
|
|
*)
|
|
## Try direct
|
|
if ! [ -r "$src" ]; then
|
|
err "File '$src' not found/readable."
|
|
return 1
|
|
fi
|
|
cat "$src" || return 1
|
|
;;
|
|
esac
|
|
}
|
|
export -f fetch_file
|
|
|
|
## receives stdin content to decompress on stdout
|
|
## stdout content should be tar format.
|
|
uncompress_file() {
|
|
local filename="$1"
|
|
|
|
## Warning, the content of the file is already as stdin, the filename
|
|
## is there to hint for correct decompression.
|
|
case "$filename" in
|
|
*".gz")
|
|
gunzip
|
|
;;
|
|
*".bz2")
|
|
bunzip2
|
|
;;
|
|
*)
|
|
cat
|
|
;;
|
|
esac
|
|
|
|
}
|
|
export -f uncompress_file
|
|
|
|
get_file() {
|
|
local src="$1"
|
|
|
|
fetch_file "$src" | uncompress_file "$src"
|
|
}
|
|
export -f get_file
|
|
|
|
|
|
cmd_on_base_image() {
|
|
local charm="$1"
|
|
shift
|
|
base_image=$(service_base_docker_image "$charm") || return 1
|
|
|
|
docker run -i --entrypoint /bin/bash "$base_image" -c "$*"
|
|
}
|
|
export -f cmd_on_base_image
|
|
|
|
cached_cmd_on_base_image() {
|
|
local charm="$1" cache_file="$state_tmpdir/$FUNCNAME.cache.$(echo "$*" | md5_compat)"
|
|
shift
|
|
if [ -e "$cache_file" ]; then
|
|
# debug "$FUNCNAME: cache hit ($*)"
|
|
cat "$cache_file"
|
|
return 0
|
|
fi
|
|
base_image=$(service_base_docker_image "$charm") || return 1
|
|
result=$(cmd_on_base_image "$charm" "$@") || return 1
|
|
echo "$result" | tee "$cache_file"
|
|
}
|
|
export -f cached_cmd_on_base_image
|
|
|
|
array_values_to_stdin() {
|
|
local e
|
|
if [ "$#" -ne "1" ]; then
|
|
print_syntax_warning "$FUNCNAME: need one argument."
|
|
return 1
|
|
fi
|
|
var="$1"
|
|
eval "for e in \"\${$var[@]}\"; do echo -en \"\$e\\0\"; done"
|
|
}
|
|
|
|
array_keys_to_stdin() {
|
|
local e
|
|
if [ "$#" -ne "1" ]; then
|
|
print_syntax_warning "$FUNCNAME: need one argument."
|
|
return 1
|
|
fi
|
|
var="$1"
|
|
eval "for e in \"\${!$var[@]}\"; do echo -en \"\$e\\0\"; done"
|
|
}
|
|
|
|
array_kv_to_stdin() {
|
|
local e
|
|
if [ "$#" -ne "1" ]; then
|
|
print_syntax_warning "$FUNCNAME: need one argument."
|
|
return 1
|
|
fi
|
|
var="$1"
|
|
eval "for e in \"\${!$var[@]}\"; do echo -n \"\$e\"; echo -en '\0'; echo -n \"\${$var[\$e]}\"; echo -en '\0'; done"
|
|
}
|
|
|
|
|
|
array_pop() {
|
|
local narr="$1" nres="$2"
|
|
for key in $(eval "echo \${!$narr[@]}"); do
|
|
eval "$nres=\${$narr[\"\$key\"]}"
|
|
eval "unset $narr[\"\$key\"]"
|
|
return 0
|
|
done
|
|
}
|
|
export -f array_pop
|
|
|
|
array_member() {
|
|
local src elt
|
|
src="$1"
|
|
elt="$2"
|
|
while read-0 key; do
|
|
if [ "$(eval "echo -n \"\${$src[\$key]}\"")" == "$elt" ]; then
|
|
return 0
|
|
fi
|
|
done < <(array_keys_to_stdin "$src")
|
|
return 1
|
|
}
|
|
export -f array_member
|
|
|
|
|
|
get_charm_relation_def () {
|
|
local charm="$1" relation_name="$2" cache_file="$state_tmpdir/$FUNCNAME.cache.$(echo "$*" | md5_compat)" \
|
|
relation_def metadata
|
|
if [ -e "$cache_file" ]; then
|
|
# debug "$FUNCNAME: cache hit ($*)"
|
|
cat "$cache_file"
|
|
return 0
|
|
fi
|
|
metadata="$(get_charm_metadata "$charm")" || return 1
|
|
relation_def="$(echo "$metadata" | shyaml get-value "provides.${relation_name}" 2>/dev/null)"
|
|
echo "$relation_def" | tee "$cache_file"
|
|
}
|
|
export -f get_charm_relation_def
|
|
|
|
|
|
get_charm_tech_dep_orientation_for_relation() {
|
|
local charm="$1" relation_name="$2" cache_file="$state_tmpdir/$FUNCNAME.cache.$(echo "$*" | md5_compat)" \
|
|
relation_def metadata value
|
|
if [ -e "$cache_file" ]; then
|
|
# debug "$FUNCNAME: cache hit ($*)"
|
|
cat "$cache_file"
|
|
return 0
|
|
fi
|
|
relation_def=$(get_charm_relation_def "$charm" "$relation_name" 2>/dev/null)
|
|
value=$(echo "$relation_def" | shyaml get-value 'tech-dep' 2>/dev/null)
|
|
value=${value:-True}
|
|
echo "$value" | tee "$cache_file"
|
|
}
|
|
export -f get_charm_tech_dep_orientation_for_relation
|
|
|
|
##
|
|
## Use compose file to get deps, and relation definition in metadata.yml
|
|
## for tech-dep attribute.
|
|
get_service_deps() {
|
|
local service="$1" cache_file="$state_tmpdir/$FUNCNAME.cache.$(echo "$*" | md5_compat)"
|
|
if [ -e "$cache_file" ]; then
|
|
# debug "$FUNCNAME: cache hit ($*)"
|
|
cat "$cache_file"
|
|
return 0
|
|
fi
|
|
(
|
|
set -o pipefail
|
|
get_compose_relations "$service" | \
|
|
while read-0 relation_name target_service _relation_config tech_dep; do
|
|
echo "$target_service"
|
|
done | tee "$cache_file"
|
|
) || return 1
|
|
}
|
|
export -f get_service_deps
|
|
|
|
|
|
_rec_get_depth() {
|
|
local elt=$1
|
|
|
|
#debug "Asking for $DARKYELLOW$elt$NORMAL dependencies"
|
|
if [ "${depths[$elt]}" ]; then
|
|
return 0
|
|
fi
|
|
deps=$(get_service_deps "$elt") || return 1
|
|
if [ -z "$deps" ]; then
|
|
depths[$elt]=0
|
|
fi
|
|
|
|
max=0
|
|
for dep in $deps; do
|
|
_rec_get_depth "$dep" || return 1
|
|
if (( "${depths[$dep]}" > "$max" )); then
|
|
max="${depths[$dep]}"
|
|
fi
|
|
done
|
|
depths[$elt]=$((max + 1))
|
|
}
|
|
export -f _rec_get_depth
|
|
|
|
get_ordered_service_dependencies() {
|
|
local services=("$@") cache_file="$state_tmpdir/$FUNCNAME.cache.$(echo "$*" | md5_compat)"
|
|
if [ -e "$cache_file" ]; then
|
|
# debug "$FUNCNAME: cache hit ($*)"
|
|
cat "$cache_file"
|
|
return 0
|
|
fi
|
|
|
|
#debug "Figuring ordered deps of $DARKYELLOW$services$NORMAL"
|
|
if [ -z "${services[*]}" ]; then
|
|
print_syntax_error "$FUNCNAME: no arguments"
|
|
return 1
|
|
fi
|
|
|
|
declare -A depths
|
|
visited=()
|
|
heads=("${services[@]}")
|
|
while [ "${#heads[@]}" != 0 ]; do
|
|
array_pop heads head
|
|
visited+=("$head")
|
|
_rec_get_depth "$head" || return 1
|
|
done
|
|
|
|
i=0
|
|
while [ "${#depths[@]}" != 0 ]; do
|
|
for key in "${!depths[@]}"; do
|
|
value="${depths[$key]}"
|
|
if [ "$value" == "$i" ]; then
|
|
echo "$key"
|
|
unset depths[$key]
|
|
fi
|
|
done
|
|
i=$((i + 1))
|
|
done > "$cache_file"
|
|
cat "$cache_file"
|
|
}
|
|
export -f get_ordered_service_dependencies
|
|
|
|
run_service_hook () {
|
|
local services="$1" action="$2" loaded
|
|
|
|
declare -A loaded
|
|
for service in $services; do
|
|
for subservice in $(get_ordered_service_dependencies "$service"); do
|
|
if [ "${loaded[$subservice]}" ]; then
|
|
## Prevent double inclusion of same service if this
|
|
## service is deps of two or more of your
|
|
## requirements.
|
|
continue
|
|
fi
|
|
|
|
charm=$(get_service_charm "$subservice") || return 1
|
|
TARGET_SCRIPT="$CHARM_STORE/$charm/hooks/$action"
|
|
[ -e "$TARGET_SCRIPT" ] || continue
|
|
|
|
PROJECT_NAME=$(get_default_project_name) || return 1
|
|
Wrap -d "$YELLOW$action$NORMAL hook of charm $DARKYELLOW$charm$NORMAL" <<EOF || return 1
|
|
cd "$CHARM_STORE/$charm"
|
|
SERVICE_NAME=$subservice \
|
|
PROJECT_NAME=$PROJECT_NAME \
|
|
DOCKER_BASE_IMAGE=$(service_base_docker_image "$charm") \
|
|
SERVICE_DATASTORE="$DATASTORE/$charm" \
|
|
SERVICE_CONFIGSTORE="$CONFIGSTORE/$charm" \
|
|
"$TARGET_SCRIPT"
|
|
EOF
|
|
loaded[$subservice]=1
|
|
done
|
|
done
|
|
return 0
|
|
}
|
|
|
|
|
|
relation-get () {
|
|
local key="$1"
|
|
cat "$RELATION_DATA_FILE" | shyaml get-value "$key" 2>/dev/null
|
|
if [ "$?" != 0 ]; then
|
|
err "The key $WHITE$key$NORMAL was not found in relation's data."
|
|
return 1
|
|
fi
|
|
}
|
|
export -f relation-get
|
|
|
|
|
|
relation-base-compose-get () {
|
|
local key="$1"
|
|
echo "$RELATION_BASE_COMPOSE_DEF" | shyaml get-value "options.$key" 2>/dev/null
|
|
if [ "$?" != 0 ]; then
|
|
err "The key $WHITE$key$NORMAL was not found in base service compose definition.."
|
|
return 1
|
|
fi
|
|
}
|
|
export -f relation-base-compose-get
|
|
|
|
|
|
relation-target-compose-get () {
|
|
local key="$1"
|
|
echo "$RELATION_BASE_COMPOSE_DEF" | shyaml get-value "options.$key" 2>/dev/null
|
|
if [ "$?" != 0 ]; then
|
|
err "The key $WHITE$key$NORMAL was not found in base service compose definition.."
|
|
return 1
|
|
fi
|
|
}
|
|
export -f relation-base-compose-get
|
|
|
|
|
|
relation-set () {
|
|
local key="$1" value="$2"
|
|
if [ -z "$RELATION_DATA_FILE" ]; then
|
|
err "$FUNCNAME: relation does not seems to be correctly setup."
|
|
return 1
|
|
fi
|
|
|
|
if ! [ -r "$RELATION_DATA_FILE" ]; then
|
|
err "$FUNCNAME: can't read relation's data." >&2
|
|
return 1
|
|
fi
|
|
|
|
_config_merge "$RELATION_DATA_FILE" <(echo "$key: $value")
|
|
}
|
|
export -f relation-set
|
|
|
|
|
|
_config_merge() {
|
|
local config_filename="$1" merge_to_file="$2"
|
|
touch "$config_filename" &&
|
|
merge_yaml "$config_filename" "$merge_to_file" > "$config_filename.tmp" || return 1
|
|
mv "$config_filename.tmp" "$config_filename"
|
|
}
|
|
export -f _config_merge
|
|
|
|
## XXXvlab; this can be used only in relation, I'd like to use it in init.
|
|
config-add() {
|
|
local metadata="$1"
|
|
_config_merge "$RELATION_CONFIG" <(echo "$metadata")
|
|
}
|
|
export -f config-add
|
|
|
|
## XXXvlab; this can be used only in relation, I'd like to use it in init.
|
|
init-config-add() {
|
|
local metadata="$1"
|
|
_config_merge "$state_tmpdir/to-merge-in-docker-compose.yml" <(echo "$metadata")
|
|
}
|
|
export -f init-config-add
|
|
|
|
|
|
logstdout() {
|
|
local name="$1"
|
|
sed -r 's%^%'"${name}"'> %g'
|
|
}
|
|
export -f logstdout
|
|
|
|
|
|
logstderr() {
|
|
local name="$1"
|
|
sed -r 's%^(.*)$%'"${RED}${name}>${NORMAL} \1"'%g'
|
|
}
|
|
export -f logstderr
|
|
|
|
|
|
_run_service_relation () {
|
|
local relation_name="$1" service="$2" target_service="$3" relation_config="$4" relation_dir services
|
|
|
|
charm=$(get_service_charm "$service") || return 1
|
|
target_charm=$(get_service_charm "$target_service") || return 1
|
|
base_script_name=$(echo "$relation_name" | tr "-" "_" )-relation-joined
|
|
script_name="hooks/${base_script_name}"
|
|
|
|
[ ! -e "$CHARM_STORE/$target_charm/$script_name" -a ! -e "$CHARM_STORE/$charm/$script_name" ] &&
|
|
return 0
|
|
|
|
relation_dir=$(get_relation_data_dir "$charm" "$target_charm" "$relation_name") || return 1
|
|
RELATION_DATA_FILE=$(get_relation_data_file "$charm" "$target_charm" "$relation_name" "$relation_config") || return 1
|
|
RELATION_BASE_COMPOSE_DEF=$(get_compose_service_def "$service") || return 1
|
|
RELATION_TARGET_COMPOSE_DEF=$(get_compose_service_def "$target_service") || return 1
|
|
export BASE_SERVICE_NAME=$service
|
|
export TARGET_SERVICE_NAME=$target_service
|
|
export BASE_CHARM_NAME=$charm
|
|
export TARGET_CHARM_NAME=$target_charm
|
|
PROJECT_NAME=$(get_default_project_name) || return 1
|
|
MASTER_BASE_CHARM_NAME=$(_get_top_master_charm_for_service "$service") || return 1
|
|
MASTER_TARGET_CHARM_NAME=$(_get_top_master_charm_for_service "$target_service") || return 1
|
|
export RELATION_DATA_FILE RELATION_BASE_COMPOSE_DEF RELATION_TARGET_COMPOSE_DEF
|
|
export MASTER_BASE_CHARM_NAME MASTER_TARGET_CHARM_NAME PROJECT_NAME
|
|
target_errlvl=0
|
|
if ! [ -e "$CHARM_STORE/$target_charm/$script_name" ]; then
|
|
verb "No relation script '$script_name' in $DARKYELLOW$target_charm$NORMAL."
|
|
else
|
|
verb "Running ${DARKBLUE}$relation_name${NORMAL} relation-joined script" \
|
|
"for target charm $DARKYELLOW$target_charm$NORMAL"
|
|
RELATION_CONFIG="$relation_dir/config_provider"
|
|
DOCKER_BASE_IMAGE=$(service_base_docker_image "$target_service") || return 1
|
|
export DOCKER_BASE_IMAGE RELATION_CONFIG RELATION_DATA
|
|
{
|
|
(
|
|
cd "$CHARM_STORE/$target_charm"
|
|
SERVICE_NAME=$target_service
|
|
SERVICE_DATASTORE="$DATASTORE/$target_charm"
|
|
SERVICE_CONFIGSTORE="$CONFIGSTORE/$target_charm"
|
|
export SERVICE_NAME DOCKER_BASE_IMAGE SERVICE_DATASTORE SERVICE_CONFIGSTORE
|
|
"$script_name"
|
|
echo "$?" > "$relation_dir/target_errlvl"
|
|
) | logstdout "$DARKYELLOW$target_charm$NORMAL/$base_script_name ${GREEN}@${NORMAL}"
|
|
} 3>&1 1>&2 2>&3 | logstderr "$DARKYELLOW$target_charm$NORMAL/$base_script_name ${RED}@${NORMAL}" 3>&1 1>&2 2>&3
|
|
target_errlvl="$(cat "$relation_dir/target_errlvl")" || {
|
|
err "Relation script '$script_name' in $DARKYELLOW$target_charm$NORMAL" \
|
|
"failed before outputing an errorlevel."
|
|
((target_errlvl |= "1" ))
|
|
}
|
|
if [ -e "$RELATION_CONFIG" ]; then
|
|
debug "Merging some new config info in $DARKYELLOW$target_service$NORMAL"
|
|
_config_merge "$state_tmpdir/to-merge-in-docker-compose.yml" "$RELATION_CONFIG" &&
|
|
rm "$RELATION_CONFIG"
|
|
((target_errlvl |= "$?"))
|
|
fi
|
|
fi
|
|
|
|
if [ "$target_errlvl" == 0 ]; then
|
|
errlvl=0
|
|
if [ -e "$CHARM_STORE/$charm/$script_name" ]; then
|
|
verb "Running ${DARKBLUE}$relation_name${NORMAL} relation-joined script" \
|
|
"for charm $DARKYELLOW$charm$NORMAL"
|
|
RELATION_CONFIG="$relation_dir/config_providee"
|
|
RELATION_DATA="$(cat "$RELATION_DATA_FILE")"
|
|
DOCKER_BASE_IMAGE=$(service_base_docker_image "$service") || return 1
|
|
export DOCKER_BASE_IMAGE RELATION_CONFIG RELATION_DATA
|
|
{
|
|
(
|
|
cd "$CHARM_STORE/$charm"
|
|
SERVICE_NAME=$service
|
|
SERVICE_DATASTORE="$DATASTORE/$charm"
|
|
SERVICE_CONFIGSTORE="$CONFIGSTORE/$charm"
|
|
export SERVICE_NAME DOCKER_BASE_IMAGE SERVICE_DATASTORE SERVICE_CONFIGSTORE
|
|
"$script_name"
|
|
echo "$?" > "$relation_dir/errlvl"
|
|
) | logstdout "$DARKYELLOW$charm$NORMAL/$base_script_name ${GREEN}@${NORMAL}"
|
|
} 3>&1 1>&2 2>&3 | logstderr "$DARKYELLOW$charm$NORMAL/$base_script_name ${RED}@$NORMAL" 3>&1 1>&2 2>&3
|
|
errlvl="$(cat "$relation_dir/errlvl")" || {
|
|
err "Relation script '$script_name' in $DARKYELLOW$charm$NORMAL" \
|
|
"failed before outputing an errorlevel."
|
|
((errlvl |= "1" ))
|
|
}
|
|
if [ -e "$RELATION_CONFIG" ]; then
|
|
_config_merge "$state_tmpdir/to-merge-in-docker-compose.yml" "$RELATION_CONFIG" &&
|
|
rm "$RELATION_CONFIG"
|
|
((errlvl |= "$?" ))
|
|
fi
|
|
if [ "$errlvl" != 0 ]; then
|
|
err "Relation $DARKBLUE$relation_name$NORMAL on $DARKYELLOW$charm$NORMAL failed to run properly."
|
|
fi
|
|
else
|
|
verb "No relation script '$script_name' in charm $DARKYELLOW$charm$NORMAL. Ignoring."
|
|
fi
|
|
else
|
|
err "Relation $DARKBLUE$relation_name$NORMAL on $DARKYELLOW$target_charm$NORMAL failed to run properly."
|
|
fi
|
|
|
|
if [ "$target_errlvl" == 0 -a "$errlvl" == 0 ]; then
|
|
debug "Relation $DARKBLUE$relation_name$NORMAL is established" \
|
|
"between $DARKYELLOW$service$NORMAL and $DARKYELLOW$target_service$NORMAL."
|
|
return 0
|
|
else
|
|
return 1
|
|
fi
|
|
}
|
|
export -f _run_service_relation
|
|
|
|
|
|
get_compose_relations () {
|
|
local service="$1" cache_file="$state_tmpdir/$FUNCNAME.cache.$(echo "$*" | md5_compat)" relation_name relation_def
|
|
|
|
if [ -e "$cache_file" ]; then
|
|
# debug "$FUNCNAME: cache hit ($*)"
|
|
cat "$cache_file"
|
|
return 0
|
|
fi
|
|
|
|
compose_def="$(get_compose_service_def "$service")" || return 1
|
|
(
|
|
set -o pipefail
|
|
if [ "$compose_def" ]; then
|
|
while read-0 relation_name relation_def; do
|
|
(
|
|
case "$(echo "$relation_def" | shyaml get-type 2>/dev/null)" in
|
|
"str")
|
|
target_service="$(echo "$relation_def" | shyaml get-value 2>/dev/null)"
|
|
tech_dep="$(get_charm_tech_dep_orientation_for_relation "$target_service" "$relation_name")"
|
|
echo -en "$relation_name\0$target_service\0\0$tech_dep\0"
|
|
;;
|
|
"sequence")
|
|
while read-0 target_service; do
|
|
tech_dep="$(get_charm_tech_dep_orientation_for_relation "$target_service" "$relation_name")"
|
|
echo -en "$relation_name\0$target_service\0\0$tech_dep\0"
|
|
done < <(echo "$relation_def" | shyaml get-values-0 2>/dev/null)
|
|
;;
|
|
"struct")
|
|
while read-0 target_service relation_config; do
|
|
tech_dep="$(get_charm_tech_dep_orientation_for_relation "$target_service" "$relation_name")"
|
|
echo -en "$relation_name\0$target_service\0$relation_config\0$tech_dep\0"
|
|
done < <(echo "$relation_def" | shyaml key-values-0 2>/dev/null)
|
|
;;
|
|
esac
|
|
) </dev/null >> "$cache_file"
|
|
done < <(echo "$compose_def" | shyaml key-values-0 relations 2>/dev/null)
|
|
fi
|
|
)
|
|
if [ "$?" != 0 ]; then
|
|
err "Error while looking for compose relations."
|
|
rm -f "$cache_file" ## no cache
|
|
return 1
|
|
fi
|
|
[ -e "$cache_file" ] && cat "$cache_file"
|
|
return 0
|
|
}
|
|
export -f get_compose_relations
|
|
|
|
run_service_relations () {
|
|
local services="$1" loaded
|
|
declare -A loaded
|
|
for service in $(get_ordered_service_dependencies $services); do
|
|
# debug "Upping dep's relations of ${DARKYELLOW}$service${NORMAL}:"
|
|
for subservice in $(get_service_deps "$service") "$service"; do
|
|
[ "${loaded[$subservice]}" ] && continue
|
|
# debug " Relations of ${DARKYELLOW}$subservice${NORMAL}:"
|
|
while read-0 relation_name target_service relation_config tech_dep; do
|
|
export relation_config
|
|
Wrap -d "Building $DARKYELLOW$subservice$NORMAL --$DARKBLUE$relation_name$NORMAL--> $DARKYELLOW$target_service$NORMAL" <<EOF || return 1
|
|
_run_service_relation "$relation_name" "$subservice" "$target_service" "\$relation_config"
|
|
EOF
|
|
done < <(get_compose_relations "$subservice") || return 1
|
|
loaded[$subservice]=1
|
|
done
|
|
done
|
|
}
|
|
export -f run_service_relations
|
|
|
|
|
|
_run_service_action_direct() {
|
|
local service="$1" action="$2" charm script _dummy
|
|
shift; shift
|
|
|
|
read-0 charm script || true ## against 'set -e' that could be setup in parent scripts
|
|
|
|
if read-0 _dummy || [ "$_dummy" ]; then
|
|
print_syntax_error "$FUNCNAME: too many arguments in action descriptor"
|
|
return 1
|
|
fi
|
|
|
|
compose_file=$(get_compose_yml_location) || return 1
|
|
export action_errlvl_file="$state_tmpdir/action-$service-$charm-$action-errlvl"
|
|
export state_tmpdir
|
|
{
|
|
(
|
|
set +e ## Prevents unwanted leaks from parent shell
|
|
cd "$CHARM_STORE/$charm"
|
|
export COMPOSE_CONFIG=$(cat "$compose_file")
|
|
export METADATA_CONFIG=$(cat "$CHARM_STORE/$charm/metadata.yml")
|
|
export SERVICE_NAME=$service
|
|
export ACTION_NAME=$action
|
|
export CONTAINER_NAME=$(_get_top_master_charm_for_service "$service")
|
|
export DOCKER_BASE_IMAGE=$(service_base_docker_image "$CONTAINER_NAME")
|
|
export SERVICE_DATASTORE="$DATASTORE/$service"
|
|
export SERVICE_CONFIGSTORE="$CONFIGSTORE/$service"
|
|
exname="$exname $ACTION_NAME $SERVICE_NAME" \
|
|
stdbuf -oL -eL "$script" "$@"
|
|
echo "$?" > "$action_errlvl_file"
|
|
) | logstdout "$DARKYELLOW$charm$NORMAL/${DARKCYAN}$action${NORMAL} ${GREEN}@${NORMAL}"
|
|
} 3>&1 1>&2 2>&3 | logstderr "$DARKYELLOW$charm$NORMAL/${DARKCYAN}$action${NORMAL} ${RED}@$NORMAL" 3>&1 1>&2 2>&3
|
|
if ! [ -e "$action_errlvl_file" ]; then
|
|
err "Action $DARKYELLOW$service$NORMAL:$DARKCYAN$action$NORMAL has failed without having time" \
|
|
"to output an errlvl"
|
|
return 1
|
|
fi
|
|
return "$(cat "$action_errlvl_file")"
|
|
}
|
|
export -f _run_service_action_direct
|
|
|
|
_run_service_action_relation() {
|
|
local service="$1" action="$2" charm target_charm relation_name target_script relation_config _dummy
|
|
shift; shift
|
|
|
|
read-0 charm target_charm relation_name target_script relation_config || true
|
|
|
|
if read-0 _dummy || [ "$_dummy" ]; then
|
|
print_syntax_error "$FUNCNAME: too many arguments in action descriptor"
|
|
return 1
|
|
fi
|
|
|
|
export RELATION_DATA_FILE=$(get_relation_data_file "$charm" "$target_charm" "$relation_name" "$relation_config")
|
|
|
|
compose_file=$(get_compose_yml_location) || return 1
|
|
export action_errlvl_file="$state_tmpdir/action-$service-$charm-$action-errlvl"
|
|
export state_tmpdir
|
|
{
|
|
(
|
|
set +e ## Prevents unwanted leaks from parent shell
|
|
cd "$CHARM_STORE/$charm"
|
|
export METADATA_CONFIG=$(cat "$CHARM_STORE/$charm/metadata.yml")
|
|
export SERVICE_NAME=$service
|
|
export RELATION_TARGET_CHARM="$target_charm"
|
|
export RELATION_CHARM="$charm"
|
|
export ACTION_NAME=$action
|
|
export CONTAINER_NAME=$(_get_top_master_charm_for_service "$service")
|
|
export DOCKER_BASE_IMAGE=$(service_base_docker_image "$CONTAINER_NAME")
|
|
export SERVICE_DATASTORE="$DATASTORE/$service"
|
|
export SERVICE_CONFIGSTORE="$CONFIGSTORE/$service"
|
|
exname="$exname $ACTION_NAME $SERVICE_NAME" \
|
|
stdbuf -oL -eL "$target_script" "$@"
|
|
echo "$?" > "$action_errlvl_file"
|
|
) | logstdout "$DARKYELLOW$charm$NORMAL/${DARKCYAN}$action${NORMAL} ${GREEN}@${NORMAL}"
|
|
} 3>&1 1>&2 2>&3 | logstderr "$DARKYELLOW$charm$NORMAL/${DARKCYAN}$action${NORMAL} ${RED}@$NORMAL" 3>&1 1>&2 2>&3
|
|
if ! [ -e "$action_errlvl_file" ]; then
|
|
err "Action $DARKYELLOW$service$NORMAL:$DARKCYAN$action$NORMAL has failed without having time" \
|
|
"to output an errlvl"
|
|
return 1
|
|
fi
|
|
return "$(cat "$action_errlvl_file")"
|
|
}
|
|
export -f _run_service_action_relation
|
|
|
|
|
|
get_relation_data_dir() {
|
|
local charm="$1" target_charm="$2" relation_name="$3" cache_file="$state_tmpdir/$FUNCNAME.cache.$(echo "$*" | md5_compat)"
|
|
if [ -e "$cache_file" ]; then
|
|
# debug "$FUNCNAME: cache hit ($*)"
|
|
cat "$cache_file"
|
|
return 0
|
|
fi
|
|
|
|
project=$(get_default_project_name) || return 1
|
|
relation_dir="$VARDIR/relations/$project/$charm-$target_charm/$relation_name"
|
|
if ! [ -d "$relation_dir" ]; then
|
|
mkdir -p "$relation_dir" || return 1
|
|
chmod go-rwx "$relation_dir" || return 1 ## protecting this directory
|
|
fi
|
|
echo "$relation_dir" || tee "$cache_file"
|
|
}
|
|
export -f get_relation_data_dir
|
|
|
|
|
|
get_relation_data_file() {
|
|
local charm="$1" target_charm="$2" relation_name="$3" relation_config="$4"
|
|
|
|
relation_dir=$(get_relation_data_dir "$charm" "$target_charm" "$relation_name") || return 1
|
|
relation_data_file="$relation_dir/data"
|
|
|
|
new=
|
|
if [ -e "$relation_data_file" ]; then
|
|
## Has reference changed ?
|
|
new_md5=$(echo "$relation_config" | md5_compat)
|
|
if [ "$new_md5" != "$(cat "$relation_data_file.md5_ref" 2>/dev/null)" ]; then
|
|
new=true
|
|
fi
|
|
else
|
|
new=true
|
|
fi
|
|
|
|
if [ "$new" ]; then
|
|
echo "$relation_config" > "$relation_data_file"
|
|
chmod go-rwx "$relation_data_file" ## protecting this file
|
|
echo "$relation_config" | md5_compat > "$relation_data_file.md5_ref"
|
|
fi
|
|
echo "$relation_data_file"
|
|
}
|
|
export -f get_relation_data_file
|
|
|
|
|
|
has_service_action () {
|
|
local service="$1" action="$2" cache_file="$state_tmpdir/$FUNCNAME.cache.$(echo "$*" | md5_compat)" \
|
|
target_script charm target_charm
|
|
if [ -e "$cache_file" ]; then
|
|
# debug "$FUNCNAME: cache hit ($*)"
|
|
cat "$cache_file"
|
|
return 0
|
|
fi
|
|
|
|
charm=$(get_service_charm "$service") || return 1
|
|
|
|
## Action directly provided ?
|
|
|
|
target_script="$CHARM_STORE/$charm/actions/$action"
|
|
if [ -x "$target_script" ]; then
|
|
echo -en "direct\0$charm\0$target_script" | tee "$cache_file"
|
|
return 0
|
|
fi
|
|
## Action provided by relation ?
|
|
while read-0 relation_name target_service relation_config tech_dep; do
|
|
target_charm=$(get_service_charm "$target_service") || return 1
|
|
target_script="$CHARM_STORE/$target_charm/actions/relations/$relation_name/$action"
|
|
if [ -x "$target_script" ]; then
|
|
echo -en "relation\0$charm\0$target_charm\0$relation_name\0$target_script\0$relation_config" | tee "$cache_file"
|
|
return 0
|
|
fi
|
|
done < <(get_compose_relations "$service")
|
|
|
|
master=$(_get_top_master_charm_for_service "$charm")
|
|
[ "$master" == "$charm" ] && return 1
|
|
|
|
has_service_action "$master" "$action"
|
|
}
|
|
export -f has_service_action
|
|
|
|
|
|
run_service_action () {
|
|
local service="$1" action="$2"
|
|
shift ; shift
|
|
|
|
{
|
|
if ! read-0 action_type; then
|
|
info "Service $DARKYELLOW$service$NORMAL does not have any action $DARKCYAN$action$NORMAL defined."
|
|
info " Add an executable script to '$CHARM_STORE/$charm/actions/$action' to implement action."
|
|
return 1
|
|
fi
|
|
|
|
Section "running $DARKYELLOW$service$NORMAL/$DARKCYAN$action$NORMAL ($action_type)"; Feed
|
|
"_run_service_action_${action_type}" "$service" "$action" "$@"
|
|
|
|
} < <(has_service_action "$service" "$action")
|
|
}
|
|
export -f run_service_action
|
|
|
|
|
|
get_compose_relation_config() {
|
|
local service=$1 relation_config cache_file="$state_tmpdir/$FUNCNAME.cache.$(echo "$*" | md5_compat)"
|
|
if [ -e "$cache_file" ]; then
|
|
# debug "$FUNCNAME: cache hit ($*)"
|
|
cat "$cache_file"
|
|
return 0
|
|
fi
|
|
|
|
compose_service_def=$(get_compose_service_def "$service") || return 1
|
|
|
|
echo "$compose_service_def" | shyaml get-value "relations" 2>/dev/null | tee "$cache_file"
|
|
}
|
|
export -f get_compose_relation_config
|
|
|
|
|
|
# ## Return key-values-0
|
|
# get_compose_relation_config_for_service() {
|
|
# local service=$1 relation_name=$2 relation_config
|
|
# compose_service_relations=$(get_compose_relation_config "$service") || return 1
|
|
# if ! relation_config=$(
|
|
# echo "$compose_service_relations" |
|
|
# shyaml get-value "${relation_name}" 2>/dev/null); then
|
|
# err "Couldn't find $DARKYELLOW${service}$NORMAL/${WHITE}${relation_name}$NORMAL" \
|
|
# "relation config in compose configuration."
|
|
# return 1
|
|
# fi
|
|
# if [ -z "$relation_config" ]; then
|
|
# err "Relation ${WHITE}mysql-database$NORMAL is empty in compose configuration."
|
|
# return 1
|
|
# fi
|
|
# if ! echo "$relation_config" | shyaml key-values-0 2>/dev/null; then
|
|
# err "No key/values in ${DARKBLUE}mysql-database$NORMAL of compose config."
|
|
# return 1
|
|
# fi
|
|
# }
|
|
# export -f get_compose_relation_config_for_service
|
|
|
|
|
|
_get_master_charm_for_service() {
|
|
local service="$1" cache_file="$state_tmpdir/$FUNCNAME.cache.$(echo "$*" | md5_compat)" \
|
|
charm metadata requires master_charm target_charm target_service service_def
|
|
|
|
if [ -e "$cache_file" ]; then
|
|
# debug "$FUNCNAME: cache hit ($*)"
|
|
cat "$cache_file"
|
|
return 0
|
|
fi
|
|
|
|
charm=$(get_service_charm "$service") || return 1
|
|
metadata=$(get_charm_metadata "$charm") || return 1
|
|
|
|
if [ "$(echo "$metadata" | shyaml get-value "subordinate" 2>/dev/null)" != "True" ]; then
|
|
## just return charm name
|
|
echo "$charm" > "$cache_file"
|
|
echo "$charm"
|
|
return 0
|
|
fi
|
|
|
|
## fetch the container relation
|
|
requires="$(echo "$metadata" | shyaml get-value "requires" 2>/dev/null)"
|
|
if [ -z "$requires" ]; then
|
|
die "Charm $DARKYELLOW$charm$NORMAL is a subordinate but does not have any 'requires' " \
|
|
"section."
|
|
fi
|
|
master_charm=
|
|
while read-0 relation_name relation; do
|
|
if [ "$(echo "$relation" | shyaml get-value "scope" 2>/dev/null)" == "container" ]; then
|
|
# debug "$DARKYELLOW$service$NORMAL's relation" \
|
|
# "$DARKBLUE${relation_name}$NORMAL is a container."
|
|
interface="$(echo "$relation" | shyaml get-value "interface" 2>/dev/null)"
|
|
if [ -z "$interface" ]; then
|
|
err "No ${WHITE}$interface${NORMAL} set for relation $relation_name."
|
|
return 1
|
|
fi
|
|
|
|
## Action provided by relation ?
|
|
|
|
target_service=
|
|
while read-0 relation_name candidate_target_service _relation_config _tech_dep; do
|
|
[ "$interface" == "$relation_name" ] && {
|
|
target_service="$candidate_target_service"
|
|
break
|
|
}
|
|
done < <(get_compose_relations "$service")
|
|
if [ -z "$target_service" ]; then
|
|
err "Couldn't find ${WHITE}relations.$interface${NORMAL} in" \
|
|
"${DARKYELLOW}$service$NORMAL compose definition."
|
|
return 1
|
|
fi
|
|
master_charm=$(get_service_charm "$target_service") || return 1
|
|
break
|
|
fi
|
|
done < <(echo "$requires" | shyaml key-values-0 2>/dev/null)
|
|
if [ -z "$master_charm" ]; then
|
|
die "Charm $DARKYELLOW$charm$NORMAL is a subordinate but does not have any relation with" \
|
|
" ${WHITE}scope${NORMAL} set to 'container'."
|
|
fi
|
|
echo "$master_charm" > "$cache_file"
|
|
echo "$master_charm"
|
|
return 0
|
|
}
|
|
export -f _get_master_charm_for_service
|
|
|
|
|
|
_get_top_master_charm_for_service() {
|
|
local service="$1" cache_file="$state_tmpdir/$FUNCNAME.cache.$(echo "$*" | md5_compat)" \
|
|
current_service
|
|
|
|
if [ -e "$cache_file" ]; then
|
|
# debug "$FUNCNAME: cache hit ($*)"
|
|
cat "$cache_file"
|
|
return 0
|
|
fi
|
|
|
|
current_service="$service"
|
|
while true; do
|
|
master_service=$(_get_master_charm_for_service "$current_service") || return 1
|
|
[ "$master_service" == "$current_service" ] && break
|
|
current_service="$master_service"
|
|
done
|
|
echo "$current_service" | tee "$cache_file"
|
|
return 0
|
|
}
|
|
export -f _get_top_master_charm_for_service
|
|
|
|
|
|
get_charm_metadata() {
|
|
local charm="$1" metadata_file
|
|
metadata_file="$CHARM_STORE/$charm/metadata.yml"
|
|
if ! [ -e "$metadata_file" ]; then
|
|
return 0 ## No metadata file is as if metadata was empty
|
|
fi
|
|
|
|
cat "$metadata_file"
|
|
}
|
|
export -f get_charm_metadata
|
|
|
|
##
|
|
## The result is a mixin that is not always a complete valid
|
|
## docker-compose entry (thinking of subordinates). The result
|
|
## will be merge with master charms.
|
|
get_docker_compose_mixin_from_metadata() {
|
|
local charm="$1" cache_file="$state_tmpdir/$FUNCNAME.cache.$(echo "$*" | md5_compat)" \
|
|
metadata_file metadata volumes docker_compose subordinate image
|
|
|
|
if [ -e "$cache_file" ]; then
|
|
debug "$FUNCNAME: cache hit ($*)"
|
|
cat "$cache_file"
|
|
return 0
|
|
fi
|
|
|
|
mixin=
|
|
metadata="$(get_charm_metadata "$charm")"
|
|
if [ "$metadata" ]; then
|
|
## resources to volumes
|
|
volumes=$(
|
|
for resource_type in data config; do
|
|
while read-0 resource; do
|
|
eval "echo \" - \$${resource_type^^}STORE/\$charm\$resource:\$resource:rw\""
|
|
done < <(echo "$metadata" | shyaml get-values-0 "${resource_type}-resources" 2>/dev/null)
|
|
done
|
|
while read-0 resource; do
|
|
if [[ "$resource" == *:* ]]; then
|
|
echo " - $resource:rw"
|
|
else
|
|
echo " - $resource:$resource:rw"
|
|
fi
|
|
done < <(echo "$metadata" | shyaml get-values-0 "host-resources" 2>/dev/null)
|
|
while read-0 resource; do
|
|
if ! [ -e "$CHARM_STORE/$charm/resources$resource" ]; then
|
|
err "No '$resource' resource found in ${BLUE}resources/${NORMAL}" \
|
|
"directory of charm $DARKYELLOW$charm$NORMAL."
|
|
exit 1
|
|
fi
|
|
echo " - $CHARM_STORE/$charm/resources$resource:$resource:rw"
|
|
done < <(echo "$metadata" | shyaml get-values-0 "charm-resources" 2>/dev/null)
|
|
) || return 1
|
|
if [ "$volumes" ]; then
|
|
mixin=$(echo -en "volumes:\n$volumes")
|
|
fi
|
|
|
|
docker_compose=$(echo "$metadata" | shyaml get-value "docker-compose" 2>/dev/null)
|
|
if [ "$docker_compose" ]; then
|
|
mixin=$(merge_yaml_str "$mixin" "$docker_compose")
|
|
fi
|
|
|
|
if [ "$(echo "$metadata" | shyaml get-value "subordinate" 2>/dev/null)" == "True" ]; then
|
|
subordinate=true
|
|
fi
|
|
fi
|
|
|
|
image=$(echo "$metadata" | shyaml get-value "docker-image" 2>/dev/null)
|
|
image_or_build_statement=
|
|
if [ "$image" ]; then
|
|
if [ "$subordinate" ]; then
|
|
err "Subordinate charm can not have a ${WHITE}docker-image${NORMAL} value."
|
|
return 1
|
|
fi
|
|
image_or_build_statement="image: $image"
|
|
elif [ -d "$CHARM_STORE/$charm/build" ]; then
|
|
if [ "$subordinate" ]; then
|
|
err "Subordinate charm can not have a 'build' sub directory."
|
|
return 1
|
|
fi
|
|
image_or_build_statement="build: $charm/build"
|
|
fi
|
|
if [ "$image_or_build_statement" ]; then
|
|
mixin=$(merge_yaml_str "$mixin" "$image_or_build_statement")
|
|
fi
|
|
echo "$mixin" > "$cache_file"
|
|
echo "$mixin"
|
|
}
|
|
export -f get_docker_compose_mixin_from_metadata
|
|
|
|
|
|
_save() {
|
|
local name="$1"
|
|
cat - | tee -a "$docker_compose_dir/.data/$name"
|
|
}
|
|
export -f _save
|
|
|
|
get_default_project_name() {
|
|
if [ "$DEFAULT_PROJECT_NAME" ]; then
|
|
echo "$DEFAULT_PROJECT_NAME"
|
|
return 0
|
|
fi
|
|
compose_yml_location="$(get_compose_yml_location)"
|
|
if [ "$compose_yml_location" ]; then
|
|
if normalized_path=$(readlink -e "$compose_yml_location"); then
|
|
echo "$(basename "$(dirname "$normalized_path")")"
|
|
return 0
|
|
fi
|
|
fi
|
|
echo "project"
|
|
return 0
|
|
}
|
|
export -f get_default_project_name
|
|
|
|
|
|
launch_docker_compose() {
|
|
|
|
docker_compose_tmpdir=$(mktemp -d -t tmp.XXXXXXXXXX)
|
|
#debug "Creating temporary docker-compose directory in '$docker_compose_tmpdir'."
|
|
# trap_add EXIT "debug \"Removing temporary docker-compose directory in $docker_compose_tmpdir.\";\
|
|
# rm -rf \"$docker_compose_tmpdir\""
|
|
trap_add EXIT "rm -rf \"$docker_compose_tmpdir\""
|
|
project=$(get_default_project_name)
|
|
mkdir -p "$docker_compose_tmpdir/$project"
|
|
docker_compose_dir="$docker_compose_tmpdir/$project"
|
|
|
|
if [ -z "$SERVICE_PACK" ]; then
|
|
export SERVICE_PACK=$(get_default_target_services $SERVICE_PACK)
|
|
fi
|
|
get_docker_compose $SERVICE_PACK > "$docker_compose_dir/docker-compose.yml" || return 1
|
|
if [ -e "$state_tmpdir/to-merge-in-docker-compose.yml" ]; then
|
|
# debug "Merging some config data in docker-compose.yml:"
|
|
# debug "$(cat $state_tmpdir/to-merge-in-docker-compose.yml)"
|
|
_config_merge "$docker_compose_dir/docker-compose.yml" "$state_tmpdir/to-merge-in-docker-compose.yml" || return 1
|
|
fi
|
|
|
|
## XXXvlab: could be more specific and only link the needed charms
|
|
ln -sf "$CHARM_STORE/"* "$docker_compose_dir/"
|
|
mkdir "$docker_compose_dir/.data"
|
|
|
|
{
|
|
{
|
|
cd "$docker_compose_dir"
|
|
debug "${WHITE}docker-compose.yml$NORMAL for $DARKYELLOW$SERVICE_PACK$NORMAL"
|
|
debug "$(cat "$docker_compose_dir/docker-compose.yml")"
|
|
debug "${WHITE}Launching$NORMAL: docker-compose $@"
|
|
docker-compose "$@"
|
|
echo "$?" > "$docker_compose_dir/.data/errlvl"
|
|
} | _save stdout
|
|
} 3>&1 1>&2 2>&3 | _save stderr 3>&1 1>&2 2>&3
|
|
if tail -n 1 "$docker_compose_dir/.data/stderr" | egrep "Service .+ failed to build: Error getting container [0-9a-f]+ from driver devicemapper: (open|Error mounting) /dev/mapper/docker-.*: no such file or directory$" >/dev/null 2>&1; then
|
|
err "Detected bug https://github.com/docker/docker/issues/4036 ... "
|
|
err "Please re-launch your command, or switch from 'devicemapper' driver to 'overlayfs' or 'aufs'."
|
|
fi
|
|
|
|
docker_compose_errlvl="$(cat "$docker_compose_dir/.data/errlvl")"
|
|
if [ -z "docker_compose_dir" ]; then
|
|
err "Something went wrong before you could gather docker-compose errorlevel."
|
|
return 1
|
|
fi
|
|
return "$docker_compose_errlvl"
|
|
}
|
|
export -f launch_docker_compose
|
|
|
|
get_compose_yml_location() {
|
|
|
|
parent=$(while ! [ -e "./compose.yml" ]; do
|
|
[ "$PWD" == "/" ] && exit 0
|
|
cd ..
|
|
done; echo "$PWD"
|
|
)
|
|
if [ "$parent" ]; then
|
|
echo "$parent/compose.yml"
|
|
return 0
|
|
fi
|
|
if [ "$DEFAULT_COMPOSE_FILE" ]; then
|
|
if ! [ -e "$DEFAULT_COMPOSE_FILE" ]; then
|
|
err "No 'compose.yml' was found in current or parent dirs," \
|
|
"and \$DEFAULT_COMPOSE_FILE points to an unexistent file."
|
|
die "Please provide a 'compose.yml' file."
|
|
fi
|
|
echo "$DEFAULT_COMPOSE_FILE"
|
|
return 0
|
|
fi
|
|
err "No 'compose.yml' was found in current or parent dirs, and no \$DEFAULT_COMPOSE_FILE was set."
|
|
die "Please provide a 'compose.yml' file."
|
|
return 1
|
|
}
|
|
export -f get_compose_yml_location
|
|
|
|
|
|
get_default_target_services() {
|
|
local services=("$@")
|
|
if [ -z "${services[*]}" ]; then
|
|
if [ "$DEFAULT_SERVICES" ]; then
|
|
info "No service provided, using $WHITE\$DEFAULT_SERVICES$NORMAL variable." \
|
|
"Target services: $DARKYELLOW$DEFAULT_SERVICES$NORMAL"
|
|
services="$DEFAULT_SERVICES"
|
|
else
|
|
err "No service provided."
|
|
return 1
|
|
fi
|
|
fi
|
|
echo "${services[*]}"
|
|
}
|
|
export -f get_default_target_services
|
|
|
|
|
|
get_master_services() {
|
|
local loaded master_service
|
|
declare -A loaded
|
|
for service in "$@"; do
|
|
master_service=$(_get_top_master_charm_for_service "$service") || return 1
|
|
if [ "${loaded[$master_service]}" ]; then
|
|
continue
|
|
fi
|
|
echo "$master_service"
|
|
loaded["$master_service"]=1
|
|
done | xargs echo
|
|
}
|
|
export -f get_master_services
|
|
|
|
|
|
_setup_state_dir() {
|
|
export state_tmpdir=$(mktemp -d -t tmp.XXXXXXXXXX)
|
|
#debug "Creating temporary state directory in '$state_tmpdir'."
|
|
# trap_add EXIT "debug \"Removing temporary state directory in $state_tmpdir.\";\
|
|
# rm -rf \"$state_tmpdir\""
|
|
trap_add EXIT "rm -rf \"$state_tmpdir\""
|
|
}
|
|
|
|
|
|
get_docker_compose_opts_list() {
|
|
local cache_file="$state_tmpdir/$FUNCNAME.cache.$(echo "$*" | md5_compat)"
|
|
|
|
if [ -e "$cache_file" ]; then
|
|
debug "$FUNCNAME: cache hit ($*)"
|
|
cat "$cache_file"
|
|
return 0
|
|
fi
|
|
docker-compose "$@" --help | grep '^Options:' -A 20000 |
|
|
tail -n +2 |
|
|
egrep "^\s+-" |
|
|
sed -r 's/\s+((((-[a-zA-Z]|--[a-zA-Z0-9-]+)( [A-Z=]+|=[^ ]+)?)(, )?)+)\s+.*$/\1/g' |
|
|
tee "$cache_file"
|
|
}
|
|
|
|
_MULTIOPTION_REGEX='^((-[a-zA-Z]|--[a-zA-Z0-9-]+)(, )?)+'
|
|
_MULTIOPTION_REGEX_LINE_FILTER=$_MULTIOPTION_REGEX'(\s|=)'
|
|
|
|
get_docker_compose_multi_opts_list() {
|
|
opts_list=$(get_docker_compose_opts_list "$@")
|
|
echo "$opts_list" | egrep "$_MULTIOPTION_REGEX_LINE_FILTER" |
|
|
sed -r "s/^($_MULTIOPTION_REGEX)(\s|=).*$/\1/g" |
|
|
tr ',' "\n" | xargs echo
|
|
}
|
|
|
|
get_docker_compose_single_opts_list() {
|
|
opts_list=$(get_docker_compose_opts_list "$@")
|
|
echo "$opts_list" | egrep -v "$_MULTIOPTION_REGEX_LINE_FILTER" |
|
|
tr ',' "\n" | xargs echo
|
|
}
|
|
|
|
|
|
[ "$SOURCED" ] && return 0
|
|
|
|
|
|
if [ -z "$DISABLE_SYSTEM_CONFIG_FILE" ]; then
|
|
if [ -r /etc/default/charm ]; then
|
|
. /etc/default/charm
|
|
fi
|
|
|
|
if [ -r "/etc/default/$exname" ]; then
|
|
. "/etc/default/$exname"
|
|
fi
|
|
|
|
## XXXvlab: should provide YML config opportunities in possible parent dirs ?
|
|
## userdir ? and global /etc/compose.yml ?
|
|
. /etc/compose.conf
|
|
. /etc/compose.local.conf
|
|
fi
|
|
|
|
_setup_state_dir
|
|
|
|
##
|
|
## Argument parsing
|
|
##
|
|
|
|
remainder_args=()
|
|
compose_opts=()
|
|
action_opts=()
|
|
no_hooks=
|
|
no_init=
|
|
action=
|
|
stage="main" ## switches from 'main', to 'action', 'remainder'
|
|
# DC_MATCH_MULTI=
|
|
# DC_MATCH_SINGLE=
|
|
while [ "$#" != 0 ]; do
|
|
case "$stage" in
|
|
"main")
|
|
case "$1" in
|
|
--help|-h)
|
|
no_init=true ; no_hooks=true ; no_relations=true
|
|
compose_opts+=("$1")
|
|
;;
|
|
--verbose|-v)
|
|
export VERBOSE=true
|
|
compose_opts+=("$1")
|
|
;;
|
|
-f)
|
|
[ -e "$2" ] || die "File $2 doesn't exists"
|
|
export DEFAULT_COMPOSE_FILE="$2"
|
|
shift
|
|
;;
|
|
-p)
|
|
export DEFAULT_PROJECT_NAME="$2"
|
|
shift
|
|
;;
|
|
--no-relations)
|
|
export no_relations=true
|
|
;;
|
|
--no-hooks)
|
|
export no_hooks=true
|
|
;;
|
|
--no-init)
|
|
export no_init=true
|
|
;;
|
|
--debug)
|
|
export DEBUG=true
|
|
export VERBOSE=true
|
|
;;
|
|
--*|-*)
|
|
compose_opts+=("$1")
|
|
;;
|
|
*)
|
|
action="$1"
|
|
stage="action"
|
|
# DC_MATCH_MULTI=$(get_docker_compose_multi_opts_list "$action") || return 1
|
|
# DC_MATCH_SINGLE="$(get_docker_compose_single_opts_list "$action") $(echo "$DC_MATCH_MULTI" | sed -r 's/( |$)/=\* /g')"
|
|
;;
|
|
esac
|
|
;;
|
|
"action")
|
|
case "$1" in
|
|
--help|-h)
|
|
no_init=true ; no_hooks=true ; no_relations=true
|
|
action_opts+=("$1")
|
|
;;
|
|
--verbose|-v)
|
|
export VERBOSE=true
|
|
action_opts+=("$1")
|
|
;;
|
|
--*|-*)
|
|
action_opts+=("$1")
|
|
;;
|
|
*)
|
|
action_posargs+=("$1")
|
|
stage="remainder"
|
|
;;
|
|
esac
|
|
;;
|
|
"remainder")
|
|
remainder_args+=("$@")
|
|
break 3;;
|
|
esac
|
|
shift
|
|
done
|
|
|
|
[ "${compose_opts[*]}" ] && debug "Main docker-compose opts: ${compose_opts[*]}"
|
|
[ "${action_opts[*]}" ] && debug "Action '$action' opts: ${action_opts[*]}"
|
|
[ "${remainder_args[*]}" ] && debug "Remainder args: ${remainder_args[*]}"
|
|
|
|
|
|
##
|
|
## Actual code
|
|
##
|
|
|
|
export CHARM_STORE=${CHARM_STORE:-/srv/charm-store}
|
|
export DOCKER_DATASTORE=${DOCKER_DATASTORE:-/srv/docker-datastore}
|
|
|
|
export COMPOSE_YML_FILE=$(get_compose_yml_location) || exit 1
|
|
debug "Found 'compose.yml' file in '$COMPOSE_YML_FILE'."
|
|
|
|
if ! [ -d "$CHARM_STORE" ]; then
|
|
err "Charm store path $YELLOW$CHARM_STORE$NORMAL does not exists. "
|
|
err "Please check your $YELLOW\$CHARM_STORE$NORMAL variable value."
|
|
exit 1
|
|
fi
|
|
|
|
|
|
if [ -z "$(cd "$CHARM_STORE"; ls)" ]; then
|
|
err "no available charms in charm store $YELLOW$CHARM_STORE$NORMAL. Either:"
|
|
err " - check $YELLOW\$CHARM_STORE$NORMAL variable value"
|
|
err " - download charms in $CHARM_STORE"
|
|
print_error "Charm store is empty. Cannot continue."
|
|
fi
|
|
|
|
##
|
|
## Get services in command line.
|
|
##
|
|
|
|
is_service_action=
|
|
case "$action" in
|
|
up|build|start|stop|config)
|
|
services="$(get_default_target_services "${action_posargs[@]}")" || exit 1
|
|
orig_services="${action_posargs[@]:1}"
|
|
;;
|
|
run)
|
|
services="${action_posargs[0]}"
|
|
;;
|
|
"")
|
|
services=
|
|
;;
|
|
*)
|
|
if is_service_action=$(has_service_action "${action_posargs[0]}" "$action"); then
|
|
debug "Found action $DARKCYAN$action$NORMAL in service $DARKYELLOW${action_posargs[0]}$NORMAL"
|
|
services="${action_posargs[0]}"
|
|
else
|
|
services="$(get_default_target_services "${action_posargs[@]}")"
|
|
fi
|
|
;;
|
|
esac
|
|
|
|
|
|
get_docker_compose $services >/dev/null || { ## precalculate variable \$_current_docker_compose
|
|
err "Fails to compile base 'docker-conmpose.conf'"
|
|
exit 1
|
|
}
|
|
|
|
##
|
|
## Pre-action
|
|
##
|
|
|
|
|
|
full_init=
|
|
case "$action" in
|
|
up|run)
|
|
full_init=true
|
|
;;
|
|
"")
|
|
full_init=
|
|
;;
|
|
*)
|
|
if [ "$is_service_action" ]; then
|
|
full_init=true
|
|
fi
|
|
;;
|
|
esac
|
|
|
|
if [ "$full_init" ]; then
|
|
## init in order
|
|
Section initialisation
|
|
if [ -z "$no_init" ]; then
|
|
run_service_hook "$services" init || exit 1
|
|
fi
|
|
|
|
## Get relations
|
|
if [ -z "$no_relations" ]; then
|
|
run_service_relations "$services" || exit 1
|
|
fi
|
|
|
|
## XXXvlab: to be removed when all relation and service stuff is resolved
|
|
if [ -z "$no_hooks" ]; then
|
|
ordered_services=$(get_ordered_service_dependencies $services) || exit 1
|
|
for service in $ordered_services; do
|
|
charm=$(get_service_charm "$service") || exit 1
|
|
for script in "$CHARM_STORE/$charm/hooks.d/"*.sh; do
|
|
[ -e "$script" ] || continue
|
|
[ -x "$script" ] || { echo "compose: script $script is not executable." >&2; exit 1; }
|
|
(
|
|
debug "Launching '$script'."
|
|
cd "$(dirname "$script)")";
|
|
"$script" "$@"
|
|
) || { echo "compose: hook $script failed. Stopping." >&2; exit 1; }
|
|
done
|
|
done
|
|
fi
|
|
fi
|
|
|
|
export SERVICE_PACK="$services"
|
|
|
|
##
|
|
## Docker-compose
|
|
##
|
|
|
|
case "$action" in
|
|
up|start|stop|build)
|
|
master_services=$(get_master_services $SERVICE_PACK) || exit 1
|
|
launch_docker_compose "${compose_opts[@]}" "$action" "${action_opts[@]}" $master_services
|
|
;;
|
|
run)
|
|
master_service=$(get_master_services $SERVICE_PACK) || exit 1
|
|
launch_docker_compose "${compose_opts[@]}" "$action" "${action_opts[@]}" "$master_service" "${remainder_args[@]}"
|
|
;;
|
|
# enter)
|
|
# master_service=$(get_master_services $SERVICE_PACK) || exit 1
|
|
# [ "${remainder_args[*]}" ] || remainder_args=("/bin/bash" "-c" "export TERM=xterm; exec bash")
|
|
# docker exec -ti "${action_opts[@]}" "$master_service" "${remainder_args[@]}"
|
|
# ;;
|
|
config)
|
|
## removing the services
|
|
launch_docker_compose "${compose_opts[@]}" "$action" "${action_opts[@]}" "${remainder_args[@]}"
|
|
warn "Runtime configuration modification (from relations) are not included here."
|
|
;;
|
|
*)
|
|
if [ "$is_service_action" ]; then
|
|
run_service_action "$SERVICE_PACK" "$action" "${remainder_args[@]}"
|
|
else
|
|
launch_docker_compose "${compose_opts[@]}" "$action" "${action_opts[@]}" "${remainder_args[@]}"
|
|
fi
|
|
;;
|
|
esac
|