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567 lines
15 KiB
567 lines
15 KiB
# -*- mode: shell-script -*-
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config_hash=
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apache_proxy_dir () {
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DOMAIN=$(relation-get domain) || {
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err "You must specify a ${WHITE}domain$NORMAL option in relation."
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return 1
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}
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proxy=yes apache_vhost_create || return 1
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info "Added $DOMAIN as a proxy to $TARGET."
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}
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export -f apache_proxy_dir
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apache_publish_dir () {
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DOMAIN=$(relation-get domain) || {
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err "You must specify a ${WHITE}domain$NORMAL option in relation."
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return 1
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}
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DOCKER_SITE_PATH="/var/www/${DOMAIN}"
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LOCATION=$(relation-get location 2>/dev/null) ||
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LOCATION="$DATASTORE/$BASE_SERVICE_NAME$DOCKER_SITE_PATH"
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apache_vhost_create || return 1
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info "Added $DOMAIN apache config."
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apache_code_dir || return 1
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apache_data_dirs
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}
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export -f apache_publish_dir
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apache_vhost_create () {
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export APACHE_CONFIG_LOCATION="$SERVICE_CONFIGSTORE/etc/apache2/sites-enabled"
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SERVER_ALIAS=$(relation-get server-aliases 2>/dev/null) || true
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PROTOCOLS=$(__vhost_cfg_normalize_protocol) || return 1
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export SERVER_ALIAS PROTOCOLS SSL_PLUGIN_FUN SSL_CFG_{VALUE,OPTION}
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if is_protocol_enabled https; then
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read-0 SSL_PLUGIN_FUN SSL_CFG_VALUE SSL_CFG_OPTIONS < <(ssl_get_plugin_fun) || return 1
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"$SSL_PLUGIN_FUN"_vars "$SSL_CFG_OPTIONS" "$SSL_CFG_VALUE" || return 1
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fi
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apache_vhost_statement "$PROTOCOLS" |
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file_put "$APACHE_CONFIG_LOCATION/$prefix$DOMAIN.conf" || return 1
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__vhost_cfg_creds_enabled=$(relation-get creds 2>/dev/null) || true
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if [ "$__vhost_cfg_creds_enabled" ]; then
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apache_passwd_file || return 1
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fi
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if is_protocol_enabled https; then
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"$SSL_PLUGIN_FUN"_prepare "$SSL_CFG_OPTIONS" "$SSL_CFG_VALUE" || return 1
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fi
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}
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is_protocol_enabled() {
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local protocol=$1
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[[ "$PROTOCOLS" == *",$protocol,"* ]]
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}
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export -f is_protocol_enabled
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__vhost_cfg_normalize_protocol() {
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local protocol
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if ! protocol=$(relation-get protocol 2>/dev/null); then
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protocol=auto
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else
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protocol=${protocol:-auto}
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fi
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case "$protocol" in
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auto)
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if __vhost_cfg_ssl="$(relation-get ssl 2>/dev/null)"; then
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protocol="https"
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export __vhost_cfg_ssl
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else
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protocol="http"
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fi
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;;
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both)
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protocol="https,http"
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;;
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ssl|https)
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protocol="https"
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;;
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http)
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protocol="http"
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;;
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*)
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err "Invalid value '$protocol' for ${WHITE}protocol$NORMAL option (use one of: http, https, both, auto)."
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return 1
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esac
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echo ",$protocol,"
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}
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## ssl_plugin_* and ssl_fallback should :
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## - do anything to ensure that
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## - issue config-add to add volumes if necessary
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## - output 3 vars of where to find the 3 files from within the docker apache
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ssl_get_plugin_fun() {
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# from ssl conf, return the function that should manage SSL code creation
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local cfg="$(relation-get ssl 2>/dev/null)" type keys
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if [ -z "$cfg" ]; then
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return 0
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else
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type="$(echo "$cfg" | shyaml -y get-type 2>/dev/null)" || return 1
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fi
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if [[ "$type" == "bool" ]]; then
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printf "%s\0" "ssl_fallback" "" "$cfg"
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echo ssl_fallback
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return 0
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fi
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if ! [[ "$type" == "str" || "$type" == "struct" ]]; then
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err "Invalid ${WHITE}ssl${NORMAL} value type '$type': please provide a string or a struct."
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return 1
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fi
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if [ -z "$NO_CERT_PROVIDER" ]; then
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if [[ "$type" == "str" ]]; then
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keys=("$cfg")
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else
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keys=($(echo "$cfg" | shyaml keys 2>/dev/null))
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fi
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for key in "${keys[@]}"; do
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target_relation="cert-provider"
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fun="ssl_plugin_${target_relation}"
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while read-0 relation_name target_service relation_config tech_dep; do
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[ "$relation_name" == "${target_relation}" ] || continue
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[ "$target_service" == "$key" ] || continue
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verb "Corresponding plugin ${DARKGREEN}found${NORMAL}" \
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"in ${DARKBLUE}$relation_name${NORMAL}/${DARKYELLOW}$key${NORMAL}"
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ssl_cfg=$(printf "%s" "$cfg" | shyaml get-value "$key" 2>/dev/null) || true
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merged_config=$(merge_yaml_str "$relation_config" "$ssl_cfg") || return 1
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printf "%s\0" "$fun" "$key" "$merged_config"
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return 0
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done < <(get_compose_relations "$SERVICE_NAME") || return 1
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case "$key" in
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cert|ca-cert|key)
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:
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;;
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*)
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err "Invalid key '$key' in ${WHITE}ssl${NORMAL}:" \
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"no corresponding services declared in ${DARKBLUE}${target_relation}$NORMAL"
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return 1
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;;
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esac
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done
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fi
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## No key of the struct seem to be declared cert-provider, so fallback
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printf "%s\0" "ssl_fallback" "" "$cfg"
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echo ssl_fallback
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}
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ssl_fallback_vars() {
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local cfg="$1" cert key ca_cert
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if __vhost_cfg_ssl_cert=$(echo "$cfg" | shyaml get-value cert 2>/dev/null); then
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__vhost_cfg_SSL_CERT_LOCATION=/etc/ssl/certs/${DOMAIN}.pem
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fi
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if __vhost_cfg_ssl_key=$(echo "$cfg" | shyaml get-value key 2>/dev/null); then
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__vhost_cfg_SSL_KEY_LOCATION=/etc/ssl/private/${DOMAIN}.key
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fi
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if __vhost_cfg_ssl_ca_cert=$(echo "$cfg" | shyaml get-value ca-cert 2>/dev/null); then
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__vhost_cfg_SSL_CA_CERT_LOCATION=/etc/ssl/certs/${DOMAIN}-ca.pem
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fi
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}
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ssl_fallback_prepare() {
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local cfg="$1" cert key ca_cert
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dst="$CONFIGSTORE/$BASE_SERVICE_NAME"
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volumes=""
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for label in cert key ca_cert; do
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content="$(eval echo "\"\$__vhost_cfg_ssl_$label\"")"
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if [ "$content" ]; then
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location="$(eval echo "\$__vhost_cfg_SSL_${label^^}_LOCATION")"
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echo "$content" | file_put "$dst$location"
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config_hash=$(printf "%s\0" "$config_hash" "$label" "$content" | md5_compat)
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volumes="$volumes
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- $dst$location:$location:ro"
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fi
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done
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if [ "$volumes" ]; then
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config-add "\
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services:
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$MASTER_TARGET_SERVICE_NAME:
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volumes:
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$volumes
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"
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fi
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}
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ssl_plugin_cert-provider_vars() {
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__vhost_cfg_SSL_CERT_LOCATION=/etc/letsencrypt/live/${DOMAIN}/cert.pem
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__vhost_cfg_SSL_KEY_LOCATION=/etc/letsencrypt/live/${DOMAIN}/privkey.pem
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__vhost_cfg_SSL_CHAIN=/etc/letsencrypt/live/${DOMAIN}/chain.pem
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}
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ssl_plugin_cert-provider_prepare() {
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local cfg="$1" service="$2" options
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options=$(yaml_key_val_str "options" "$cfg") || return 1
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service_config=$(yaml_key_val_str "$service" "$options")
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compose --debug --add-compose-content "$service_config" run --rm --service-ports "$service" \
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crt create "$DOMAIN" $(echo "$SERVER_ALIAS" | shyaml get-values 2>/dev/null) || {
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err "Failed to launch letsencrypt for certificate creation."
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return 1
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}
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config-add "\
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services:
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$MASTER_TARGET_SERVICE_NAME:
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volumes:
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- $DATASTORE/$service/etc/letsencrypt:/etc/letsencrypt:ro
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" || return 1
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}
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apache_passwd_file() {
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include parse || true
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## XXXvlab: called twice... no better way to do this ?
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__vhost_creds_statement >/dev/null
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first=
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if ! [ -e "$CONFIGSTORE/$MASTER_TARGET_SERVICE_NAME$password_file" ]; then
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debug "No file $CONFIGSTORE/$MASTER_TARGET_SERVICE_NAME$password_file, creating password file." || true
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first=c
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fi
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while read-0 login password; do
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debug "htpasswd -b$first '${password_file}' '$login' '$password'"
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echo "htpasswd -b$first '${password_file}' '$login' '$password'"
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if [ "$first" ]; then
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first=
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fi
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done < <(echo "$__vhost_cfg_creds_enabled" | shyaml key-values-0 2>/dev/null) |
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docker run -i --entrypoint "/bin/bash" \
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-v "$APACHE_CONFIG_LOCATION:/etc/apache2/sites-enabled" \
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"$DOCKER_BASE_IMAGE" || return 1
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}
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## Produce the full statements depending on relation-get informations
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apache_vhost_statement() {
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local vhost_statement
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export SERVER_ALIAS=$(relation-get server-aliases 2>/dev/null) || true
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export PROTOCOLS="$1"
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if is_protocol_enabled http; then
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__vhost_full_vhost_statement http
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fi
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if is_protocol_enabled https; then
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"$SSL_PLUGIN_FUN"_vars "$(relation-get ssl 2>/dev/null)"
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cat <<EOF
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<IfModule mod_ssl.c>
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$(__vhost_full_vhost_statement https | prefix " ")
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</IfModule>
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EOF
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fi
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}
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export -f apache_vhost_statement
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apache_code_dir() {
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local www_data_gid
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www_data_gid=$(cached_cmd_on_base_image apache 'id -g www-data') || {
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debug "Failed to query for www-data gid in ${DARKYELLOW}apache${NORMAL} base image."
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return 1
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}
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mkdir -p "$LOCATION" || return 1
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setfacl -R -m g:"$www_data_gid":rx "$LOCATION"
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info "Set permission for read and traversal on '$LOCATION'."
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config-add "
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$MASTER_BASE_SERVICE_NAME:
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volumes:
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- $LOCATION:$DOCKER_SITE_PATH
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"
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}
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apache_data_dirs() {
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DATA_DIRS=$(relation-get data-dirs 2>/dev/null | shyaml get-values 2>/dev/null) || true
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if [ -z "$DATA_DIRS" ]; then
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return 0
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fi
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DST=$DATASTORE/$BASE_SERVICE_NAME$DOCKER_SITE_PATH
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DATA=()
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while IFS="," read -ra ADDR; do
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for dir in "${ADDR[@]}"; do
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DATA+=($dir)
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done
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done <<< "$DATA_DIRS"
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www_data_gid=$(cached_cmd_on_base_image apache 'id -g www-data') || {
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debug "Failed to query for www-data gid in ${DARKYELLOW}apache${NORMAL} base image."
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return 1
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}
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info "www-data gid from ${DARKYELLOW}apache${NORMAL} is '$www_data_gid'"
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dirs=()
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for d in "${DATA[@]}"; do
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dirs+=("$DST/$d")
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done
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mkdir -p "${dirs[@]}"
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setfacl -R -m g:"$www_data_gid":rwx "${dirs[@]}"
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setfacl -R -d -m g:"$www_data_gid":rwx "${dirs[@]}"
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config-add "
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$MASTER_BASE_SERVICE_NAME:
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volumes:
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$(
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for d in "${DATA[@]}"; do
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echo " - $DST/$d:$DOCKER_SITE_PATH/$d"
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done
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)"
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}
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deploy_files() {
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local src="$1" dst="$2"
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if ! [ -d "$dst" ]; then
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err "Destination '$dst' does not exist or is not a directory"
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return 1
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fi
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(
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cd "$dst" && info "In $dst:" &&
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get_file "$src" | tar xv
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)
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}
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export -f deploy_files
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apache_core_rules_add() {
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local conf="$1" dst="/etc/apache2/conf-enabled/$BASE_SERVICE_NAME.conf"
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debug "Adding core rule."
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echo "$conf" | file_put "$CONFIGSTORE/$BASE_SERVICE_NAME$dst"
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config_hash=$(printf "%s\0" "$config_hash" "$conf" | md5_compat)
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config-add "
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$MASTER_BASE_SERVICE_NAME:
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volumes:
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- $CONFIGSTORE/$BASE_SERVICE_NAME$dst:$dst:ro
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"
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}
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__vhost_ssl_statement() {
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## defaults
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__vhost_cfg_SSL_CERT_LOCATION=${__vhost_cfg_SSL_CERT_LOCATION:-/etc/ssl/certs/ssl-cert-snakeoil.pem}
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__vhost_cfg_SSL_KEY_LOCATION=${__vhost_cfg_SSL_KEY_LOCATION:-/etc/ssl/private/ssl-cert-snakeoil.key}
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cat <<EOF
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##
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## SSL Configuration
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##
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SSLEngine On
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SSLCertificateFile $__vhost_cfg_SSL_CERT_LOCATION
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SSLCertificateKeyFile $__vhost_cfg_SSL_KEY_LOCATION
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$([ -z "$__vhost_cfg_SSL_CA_CERT_LOCATION" ] || echo "SSLCACertificateFile $__vhost_cfg_SSL_CA_CERT_LOCATION")
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$([ -z "$__vhost_cfg_SSL_CHAIN" ] || echo "SSLCertificateChainFile $__vhost_cfg_SSL_CHAIN")
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SSLVerifyClient None
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EOF
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}
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__vhost_creds_statement() {
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if ! __vhost_cfg_creds_enabled=$(relation-get creds 2>/dev/null); then
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echo "Allow from all"
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return 0
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fi
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password_file=/etc/apache2/sites-enabled/${DOMAIN}.passwd
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cat <<EOF
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AuthType basic
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AuthName "private"
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AuthUserFile ${password_file}
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Require valid-user
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EOF
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}
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__vhost_head_statement() {
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local protocol="$1"
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if [ "$protocol" == "https" ]; then
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prefix="s-"
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else
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prefix=
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fi
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cat <<EOF
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ServerAdmin ${ADMIN_MAIL:-contact@$DOMAIN}
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ServerName ${DOMAIN}
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$(
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while read-0 alias; do
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echo "ServerAlias $alias"
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done < <(echo "$SERVER_ALIAS" | shyaml get-values-0 2>/dev/null)
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)
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ServerSignature Off
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CustomLog /var/log/apache2/${prefix}${DOMAIN}_access.log combined
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ErrorLog /var/log/apache2/${prefix}${DOMAIN}_error.log
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ErrorLog syslog:local2
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EOF
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}
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__vhost_custom_rules() {
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local custom_rules
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if custom_rules=$(relation-get apache-custom-rules 2>/dev/null); then
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cat <<EOF
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##
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## Custom rules
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##
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$custom_rules
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EOF
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fi
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}
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__vhost_content_statement() {
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if [ "$proxy" ]; then
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__vhost_proxy_statement "$@"
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else
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__vhost_publish_dir_statement "$@"
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fi
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}
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__vhost_proxy_statement() {
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local protocol="$1"
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TARGET=$(relation-get target 2>/dev/null) || true
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if [ -z "$TARGET" ]; then
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## First exposed port:
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base_image=$(service_base_docker_image "$BASE_SERVICE_NAME") || return 1
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first_exposed_port=$(image_exposed_ports_0 "$base_image" | tr '\0' '\n' | head -n 1 | cut -f 1 -d /) || return 1
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TARGET=$MASTER_BASE_SERVICE_NAME:$first_exposed_port
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info "No target was specified, introspection found: $TARGET"
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fi
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cat <<EOF
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##
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## Proxy declaration towards $TARGET
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##
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<IfModule mod_proxy.c>
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ProxyRequests Off
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<Proxy *>
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Order deny,allow
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Allow from all
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</Proxy>
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ProxyVia On
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ProxyPass / http://$TARGET/ retry=0
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<Location / >
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$(__vhost_creds_statement | prefix " ")
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ProxyPassReverse /
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</Location>
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$([ "$protocol" == "https" ] && echo " SSLProxyEngine On")
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</IfModule>
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RequestHeader set "X-Forwarded-Proto" "$protocol"
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## Fix IE problem (httpapache proxy dav error 408/409)
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SetEnv proxy-nokeepalive 1
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EOF
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}
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__vhost_full_vhost_statement() {
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local protocol="$1"
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case "$protocol" in
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https)
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PORT=443
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;;
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http)
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PORT=80
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;;
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esac
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cat <<EOF
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<VirtualHost *:$PORT>
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$(__vhost_head_statement "$protocol" | prefix " " && echo)
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$(__vhost_custom_rules | prefix " " && echo)
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$(__vhost_content_statement "$protocol" | prefix " ")
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## Forbid any cache, this is only usefull on dev server.
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#Header set Cache-Control "no-cache"
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#Header set Access-Control-Allow-Origin "*"
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#Header set Access-Control-Allow-Methods "POST, GET, OPTIONS"
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#Header set Access-Control-Allow-Headers "origin, content-type, accept"
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$([ "$protocol" == "https" ] && __vhost_ssl_statement | prefix " " && echo )
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</VirtualHost>
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EOF
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}
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__vhost_publish_dir_statement() {
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cat <<EOF
|
|
##
|
|
## Publish directory $DOCKER_SITE_PATH
|
|
##
|
|
|
|
DocumentRoot $DOCKER_SITE_PATH
|
|
|
|
<Directory />
|
|
Options FollowSymLinks
|
|
AllowOverride None
|
|
</Directory>
|
|
|
|
<Directory $DOCKER_SITE_PATH>
|
|
Options Indexes FollowSymLinks MultiViews
|
|
AllowOverride all
|
|
$(__vhost_creds_statement | prefix " ")
|
|
</Directory>
|
|
|
|
EOF
|
|
}
|
|
|
|
|
|
apache_config_hash() {
|
|
debug "Adding config hash to enable recreating upon config change."
|
|
config_hash=$({
|
|
printf "%s\0" "$config_hash"
|
|
find "$SERVICE_CONFIGSTORE/etc/apache2/sites-enabled" \
|
|
-name \*.conf -exec md5sum {} \;
|
|
} | md5_compat) || exit 1
|
|
init-config-add "
|
|
$MASTER_BASE_SERVICE_NAME:
|
|
labels:
|
|
- compose.config_hash=$config_hash
|
|
"
|
|
}
|