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new: static caching system.

raw-remaining-args
Valentin Lab 8 years ago
parent
5dbf63f865
commit
59501a990c
1 changed files with 150 additions and 82 deletions
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  1. 232
      bin/compose

232
bin/compose
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@ -8,13 +8,20 @@
include pretty
include parse
md5_compat() { md5sum | cut -c -32; }
depends shyaml docker
[[ "${BASH_SOURCE[0]}" != "${0}" ]] && SOURCED=true
export CACHEDIR=/var/cache/compose
export VARDIR=/var/lib/compose
mkdir -p "$CACHEDIR" || exit 1
trap_add "EXIT" clean_cache
usage="$exname CHARM"'
Deploy and manage a swarm of containers to provide services based on
@ -195,7 +202,7 @@ file_put() {
export -f file_put
_get_docker_compose_links() {
get_docker_compose_links() {
local service="$1" cache_file="$state_tmpdir/$FUNCNAME.cache.$1" \
links charm charm_part master_charm
if [ -z "$service" ]; then
@ -209,11 +216,11 @@ _get_docker_compose_links() {
return 0
fi
master_charm=$(_get_top_master_charm_for_service "$service") || return 1
master_charm=$(get_top_master_charm_for_service "$service") || return 1
deps=()
while read-0 relation_name target_service relation_config tech_dep; do
master_target_charm="$(_get_top_master_charm_for_service "$target_service")"
master_target_charm="$(get_top_master_charm_for_service "$target_service")"
[ "$master_charm" == "$master_target_charm" ] && continue
if [ "$tech_dep" == "reversed" ]; then
deps+=("$(echo -en "$master_target_charm:\n links:\n - $master_charm")")
@ -241,7 +248,7 @@ _get_docker_compose_opts() {
fi
compose_def="$(get_compose_service_def "$service")" || return 1
master_charm="$(_get_top_master_charm_for_service "$service")"
master_charm="$(get_top_master_charm_for_service "$service")"
docker_compose_opts=$(echo "$compose_def" | shyaml get-value "docker-compose" 2>/dev/null)
if [ "$docker_compose_opts" ]; then
@ -267,11 +274,11 @@ _get_docker_compose_service_mixin() {
return 0
fi
master_charm=$(_get_top_master_charm_for_service "$service") || return 1
master_charm=$(get_top_master_charm_for_service "$service") || return 1
## The compose part
links_yaml=$(_get_docker_compose_links "$service") || return 1
links_yaml=$(get_docker_compose_links "$service") || return 1
docker_compose_options=$(_get_docker_compose_opts "$service") || return 1
## the charm part
@ -283,7 +290,7 @@ _get_docker_compose_service_mixin() {
## Merge results
if [ "$charm_part" ]; then
charm_yaml="$(yaml_key_val_str "$master_charm" "$charm_part")" || return 1
merge_yaml_str "$links_yaml" "$charm_yaml" "$docker_compose_options"
merge_yaml_str "$links_yaml" "$charm_yaml" "$docker_compose_options" || return 1
else
echo "$links_yaml"
fi | tee "$cache_file"
@ -344,50 +351,49 @@ get_docker_compose () {
export -f get_docker_compose
## XXXvlab: a lot to be done to cache the results
get_compose_service_def () {
local service="$1" cache_file="$state_tmpdir/$FUNCNAME.cache.$1"
_get_compose_service_def_cached () {
local service="$1" docker_compose="$2" cache_file="$CACHEDIR/$FUNCNAME.cache.$(echo "$*" | md5_compat)"
if [ -e "$cache_file" ]; then
# debug "$FUNCNAME: cache hit ($*)"
#debug "$FUNCNAME: STATIC cache hit"
cat "$cache_file"
touch "$cache_file"
return 0
fi
[ -z "$service" ] && print_syntax_error "Missing service as first argument."
service_def_base="charm: $service"
value=$(echo "$docker_compose" | shyaml get-value "$service" 2>/dev/null)
merge_yaml <(echo "$service_def_base") <(echo "$value") | tee "$cache_file"
}
export -f _get_compose_service_def_cached
service_def_base=
if [ -d "$CHARM_STORE/$service" ]; then
service_def_base="charm: $service"
fi
value=
if [ -r "$COMPOSE_YML_FILE" ]; then
value=$(shyaml get-value "$service" 2>/dev/null < "$COMPOSE_YML_FILE")
fi
if [ -z "$service_def_base" -a -z "$value" ]; then
err "Invalid service $DARKYELLOW$service$NORMAL: no definition in" \
"compose file nor charm with same name."
return 1
## XXXvlab: a lot to be done to cache the results
get_compose_service_def () {
local service="$1" docker_compose cache_file="$state_tmpdir/$FUNCNAME.cache.$1" \
result
if [ -e "$cache_file" ]; then
#debug "$FUNCNAME: SESSION cache hit"
cat "$cache_file"
return 0
fi
merge_yaml <(echo "$service_def_base") <(echo "$value") > "$cache_file"
cat "$cache_file"
[ -z "$service" ] && print_syntax_error "Missing service as first argument."
docker_compose=$(cat "$COMPOSE_YML_FILE") || return 1
result=$(_get_compose_service_def_cached "$service" "$docker_compose") || return 1
echo "$result" | tee "$cache_file"
}
export -f get_compose_service_def
get_service_charm () {
local service="$1" cache_file="$state_tmpdir/$FUNCNAME.cache.$1"
_get_service_charm_cached () {
local service="$1" service_def="$2" cache_file="$CACHEDIR/$FUNCNAME.cache.$(echo "$*" | md5_compat)"
if [ -e "$cache_file" ]; then
# debug "$FUNCNAME: cache hit ($*)"
# debug "$FUNCNAME: cache hit $1"
cat "$cache_file"
touch "$cache_file"
return 0
fi
if [ -z "$service" ]; then
print_syntax_error "$FUNCNAME: Please specify a service as first argument."
return 1
fi
service_def=$(get_compose_service_def "$service") || return 1
charm=$(echo "$service_def" | shyaml get-value charm 2>/dev/null)
if [ -z "$charm" ]; then
err "Missing charm in service $DARKYELLOW$service$NORMAL definition."
@ -395,6 +401,17 @@ get_service_charm () {
fi
echo "$charm" | tee "$cache_file"
}
export -f _get_service_charm_cached
get_service_charm () {
local service="$1"
if [ -z "$service" ]; then
print_syntax_error "$FUNCNAME: Please specify a service as first argument."
return 1
fi
service_def=$(get_compose_service_def "$service") || return 1
_get_service_charm_cached "$service" "$service_def"
}
export -f get_service_charm
## built above the docker-compose abstraction, so it relies on the
@ -425,7 +442,7 @@ service_base_docker_image() {
cat "$cache_file"
return 0
fi
master_charm="$(_get_top_master_charm_for_service "$service")" || {
master_charm="$(get_top_master_charm_for_service "$service")" || {
err "Could not compute base charm for service $DARKYELLOW$service$NORMAL."
return 1
}
@ -596,7 +613,7 @@ export -f array_member
get_charm_relation_def () {
local charm="$1" relation_name="$2" cache_file="$state_tmpdir/$FUNCNAME.cache.$1" \
local charm="$1" relation_name="$2" cache_file="$state_tmpdir/$FUNCNAME.cache.$1.$2" \
relation_def metadata
if [ -e "$cache_file" ]; then
# debug "$FUNCNAME: cache hit ($*)"
@ -611,7 +628,7 @@ 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.$1" \
local charm="$1" relation_name="$2" cache_file="$state_tmpdir/$FUNCNAME.cache.$1.$2" \
relation_def metadata value
if [ -e "$cache_file" ]; then
# debug "$FUNCNAME: cache hit ($*)"
@ -859,8 +876,8 @@ _run_service_relation () {
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 "$target_service") || return 1
MASTER_BASE_CHARM_NAME=$(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
@ -947,19 +964,19 @@ _run_service_relation () {
export -f _run_service_relation
get_compose_relations () {
local service="$1" cache_file="$state_tmpdir/$FUNCNAME.cache.$1" relation_name relation_def
_get_compose_relations_cached () {
local compose_service_def="$1" cache_file="$CACHEDIR/$FUNCNAME.cache.$(echo "$*" | md5_compat)" \
relation_name relation_def target_service
if [ -e "$cache_file" ]; then
# debug "$FUNCNAME: cache hit ($*)"
#debug "$FUNCNAME: STATIC cache hit $1"
cat "$cache_file"
touch "$cache_file"
return 0
fi
compose_def="$(get_compose_service_def "$service")" || return 1
(
set -o pipefail
if [ "$compose_def" ]; then
if [ "$compose_service_def" ]; then
while read-0 relation_name relation_def; do
(
case "$(echo "$relation_def" | shyaml get-type 2>/dev/null)" in
@ -982,7 +999,7 @@ get_compose_relations () {
;;
esac
) </dev/null >> "$cache_file"
done < <(echo "$compose_def" | shyaml key-values-0 relations 2>/dev/null)
done < <(echo "$compose_service_def" | shyaml key-values-0 relations 2>/dev/null)
fi
)
if [ "$?" != 0 ]; then
@ -993,6 +1010,27 @@ get_compose_relations () {
[ -e "$cache_file" ] && cat "$cache_file"
return 0
}
export -f _get_compose_relations_cached
get_compose_relations () {
local service="$1" cache_file="$state_tmpdir/$FUNCNAME.cache.$1" \
compose_def
if [ -e "$cache_file" ]; then
#debug "$FUNCNAME: SESSION cache hit $1"
cat "$cache_file"
return 0
fi
compose_def="$(get_compose_service_def "$service")" || return 1
_get_compose_relations_cached "$compose_def" > "$cache_file"
if [ "$?" != 0 ]; then
err "Error while looking for compose relations."
rm -f "$cache_file" ## no cache
return 1
fi
cat "$cache_file"
}
export -f get_compose_relations
run_service_relations () {
@ -1038,7 +1076,7 @@ _run_service_action_direct() {
export METADATA_CONFIG=$(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 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"
@ -1081,7 +1119,7 @@ _run_service_action_relation() {
export RELATION_TARGET_CHARM="$target_charm"
export RELATION_CHARM="$charm"
export ACTION_NAME=$action
export CONTAINER_NAME=$(_get_top_master_charm_for_service "$service")
export CONTAINER_NAME=$(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/$service"
@ -1174,7 +1212,7 @@ has_service_action () {
fi
done < <(get_compose_relations "$service")
master=$(_get_top_master_charm_for_service "$charm")
master=$(get_top_master_charm_for_service "$charm")
[ "$master" == "$charm" ] && return 1
has_service_action "$master" "$action"
@ -1239,23 +1277,19 @@ export -f get_compose_relation_config
# export -f get_compose_relation_config_for_service
_get_master_charm_for_service() {
local service="$1" cache_file="$state_tmpdir/$FUNCNAME.cache.$1" \
charm metadata requires master_charm target_charm target_service service_def
_get_master_charm_for_service_cached () {
local service="$1" charm="$2" metadata="$3" cache_file="$CACHEDIR/$FUNCNAME.cache.$(echo "$*" | md5_compat)" \
charm requires master_charm target_charm target_service service_def
if [ -e "$cache_file" ]; then
# debug "$FUNCNAME: cache hit ($*)"
# debug "$FUNCNAME: STATIC cache hit ($1)"
cat "$cache_file"
touch "$cache_file"
return 0
fi
charm=$(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"
echo "$charm" | tee "$cache_file"
return 0
fi
@ -1298,14 +1332,29 @@ _get_master_charm_for_service() {
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 "$master_charm"
return 0
echo "$master_charm" | tee "$cache_file"
}
export -f _get_master_charm_for_service
export -f _get_master_charm_for_service_cached
get_master_charm_for_service() {
local service="$1" cache_file="$state_tmpdir/$FUNCNAME.cache.$1" \
charm metadata result
if [ -e "$cache_file" ]; then
# debug "$FUNCNAME: SESSION cache hit ($*)"
cat "$cache_file"
return 0
fi
_get_top_master_charm_for_service() {
charm=$(get_service_charm "$service") || return 1
metadata=$(get_charm_metadata "$charm") || return 1
result=$(_get_master_charm_for_service_cached "$service" "$charm" "$metadata") || return 1
echo "$result" | tee "$cache_file"
}
export -f get_master_charm_for_service
get_top_master_charm_for_service() {
local service="$1" cache_file="$state_tmpdir/$FUNCNAME.cache.$1" \
current_service
@ -1317,14 +1366,14 @@ _get_top_master_charm_for_service() {
current_service="$service"
while true; do
master_service=$(_get_master_charm_for_service "$current_service") || return 1
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
export -f get_top_master_charm_for_service
get_charm_metadata() {
@ -1342,18 +1391,17 @@ 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.$1" \
_get_docker_compose_mixin_from_metadata_cached() {
local charm="$1" metadata="$2" cache_file="$CACHEDIR/$FUNCNAME.cache.$(echo "$*" | md5_compat)" \
metadata_file metadata volumes docker_compose subordinate image
if [ -e "$cache_file" ]; then
debug "$FUNCNAME: cache hit ($*)"
#debug "$FUNCNAME: STATIC cache hit $1"
cat "$cache_file"
touch "$cache_file"
return 0
fi
mixin=
metadata="$(get_charm_metadata "$charm")"
if [ "$metadata" ]; then
## resources to volumes
volumes=$(
@ -1370,11 +1418,6 @@ get_docker_compose_mixin_from_metadata() {
fi
done < <(echo "$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 "$metadata" | shyaml get-values-0 "charm-resources" 2>/dev/null)
) || return 1
@ -1410,8 +1453,22 @@ get_docker_compose_mixin_from_metadata() {
if [ "$image_or_build_statement" ]; then
mixin=$(merge_yaml_str "$mixin" "$image_or_build_statement")
fi
echo "$mixin" > "$cache_file"
echo "$mixin"
echo "$mixin" | tee "$cache_file"
}
export -f _get_docker_compose_mixin_from_metadata_cached
get_docker_compose_mixin_from_metadata() {
local charm="$1" cache_file="$state_tmpdir/$FUNCNAME.cache.$1"
if [ -e "$cache_file" ]; then
#debug "$FUNCNAME: SESSION cache hit ($*)"
cat "$cache_file"
return 0
fi
metadata="$(get_charm_metadata "$charm")" || return 1
mixin=$(_get_docker_compose_mixin_from_metadata_cached "$charm" "$metadata") || return 1
echo "$mixin" | tee "$cache_file"
}
export -f get_docker_compose_mixin_from_metadata
@ -1490,7 +1547,6 @@ launch_docker_compose() {
export -f launch_docker_compose
get_compose_yml_location() {
parent=$(while ! [ -e "./compose.yml" ]; do
[ "$PWD" == "/" ] && exit 0
cd ..
@ -1537,7 +1593,7 @@ get_master_services() {
local loaded master_service
declare -A loaded
for service in "$@"; do
master_service=$(_get_top_master_charm_for_service "$service") || return 1
master_service=$(get_top_master_charm_for_service "$service") || return 1
if [ "${loaded[$master_service]}" ]; then
continue
fi
@ -1559,7 +1615,6 @@ _setup_state_dir() {
get_docker_compose_opts_list() {
local cache_file="$state_tmpdir/$FUNCNAME.cache.$(echo "$*" | md5_compat)"
if [ -e "$cache_file" ]; then
debug "$FUNCNAME: cache hit ($*)"
cat "$cache_file"
@ -1588,6 +1643,16 @@ get_docker_compose_single_opts_list() {
tr ',' "\n" | xargs echo
}
clean_cache() {
local i=0
for f in $(ls -t "$CACHEDIR/"*.cache.* | tail -n +500); do
((i++))
rm -f "$f"
done
if (( i > 0 )); then
debug "${WHITE}Cleaned cache:${NORMAL} Removed $((i)) elements (current cache size is $(du -sh "$CACHEDIR" | cut -f 1))"
fi
}
[ "$SOURCED" ] && return 0
@ -1750,7 +1815,7 @@ esac
get_docker_compose $services >/dev/null || { ## precalculate variable \$_current_docker_compose
err "Fails to compile base 'docker-conmpose.conf'"
err "Fails to compile base 'docker-compose.conf'"
exit 1
}
@ -1837,3 +1902,6 @@ case "$action" in
fi
;;
esac
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