Files
dokku/plugins/app-json/internal-functions
Jose Diaz-Gonzalez 6836e56b24 refactor: add global docker build and run args
This reduces duplication and allows users to rely on global arguments to generate most labels needed.

The 'commit' command cannot have global arguments because the whitespace within the label change breaks string-based interpolation, and shell arrays cannot be exported.
2019-07-20 05:52:20 -04:00

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#!/usr/bin/env bash
set -eo pipefail
[[ $DOKKU_TRACE ]] && set -x
source "$PLUGIN_CORE_AVAILABLE_PATH/common/functions"
source "$PLUGIN_AVAILABLE_PATH/config/functions"
source "$PLUGIN_AVAILABLE_PATH/ps/functions"
get_phase_script() {
declare desc="extracts app.json from app image and returns the appropriate json key/value"
declare IMAGE_TAG="$1" PHASE_SCRIPT_KEY="$2"
local GET_PHASE_SCRIPT_TMP_WORK_DIR=$(mktemp -d "/tmp/dokku-${FUNCNAME[0]}.XXXX")
local APP_JSON_FILE="$GET_PHASE_SCRIPT_TMP_WORK_DIR/app.json"
trap "rm -rf '$GET_PHASE_SCRIPT_TMP_WORK_DIR' >/dev/null" RETURN INT TERM
copy_from_image "$IMAGE" "app.json" "$GET_PHASE_SCRIPT_TMP_WORK_DIR" 2>/dev/null || true
if [[ ! -f "$APP_JSON_FILE" ]]; then
return 0
fi
get_json_value "scripts.dokku.${PHASE_SCRIPT_KEY}" <"$APP_JSON_FILE"
}
get_release_cmd() {
declare desc="extracts the release command from a given app's procfile"
declare APP="$1" IMAGE_TAG="$2"
extract_procfile "$APP" "$IMAGE_TAG" >/dev/null
trap "remove_procfile $APP" RETURN INT TERM EXIT
get_cmd_from_procfile "$APP" "release" "5000"
}
execute_script() {
declare desc="executes appropriate phase script key from app.json"
declare APP="$1" IMAGE_TAG="$2" PHASE_SCRIPT_KEY="$3"
local IMAGE id SCRIPT_CMD
local DOCKER_COMMIT_LABEL_ARGS=("--change" "\"LABEL org.label-schema.schema-version=1.0\"" "--change" "\"LABEL org.label-schema.vendor=dokku\"" "--change" "\"LABEL com.dokku.app-name=$APP\"")
local DOCKER_RUN_LABEL_ARGS="--label=com.dokku.app-name=$APP"
IMAGE=$(get_deploying_app_image_name "$APP" "$IMAGE_TAG")
if [[ "$PHASE_SCRIPT_KEY" == "release" ]]; then
SCRIPT_CMD=$(get_release_cmd "$APP" "$IMAGE_TAG" 2>/dev/null || true)
else
SCRIPT_CMD=$(get_phase_script "$IMAGE" "$PHASE_SCRIPT_KEY" 2>/dev/null || true)
fi
if [[ -z "$SCRIPT_CMD" ]]; then
return
fi
dokku_log_exclaim "${PHASE_SCRIPT_KEY^} command declared: '$SCRIPT_CMD'"
local COMMAND
COMMAND="set -eo pipefail; [[ \$DOKKU_TRACE ]] && set -x ; "
COMMAND+=" if [[ -d '/app' ]]; then "
COMMAND+=" export HOME=/app ; "
COMMAND+=" cd \$HOME ; "
COMMAND+=" fi ; "
COMMAND+=" if [[ -d '/app/.profile.d' ]]; then "
COMMAND+=" for file in /app/.profile.d/*; do source \$file; done ; "
COMMAND+=" fi ; "
COMMAND+=" if [[ -d '/cache' ]]; then "
COMMAND+=" rm -rf /tmp/cache ; "
COMMAND+=" ln -sf /cache /tmp/cache ; "
COMMAND+=" fi ; "
if [[ "$SCRIPT_CMD" == /* ]]; then
local SCRIPT_BIN="$(echo "$SCRIPT_CMD" | cut -d' ' -f1)"
COMMAND+=" if [[ ! -x \"$SCRIPT_BIN\" ]]; then "
COMMAND+=" echo specified binary is not executable ; "
COMMAND+=" exit 1 ; "
COMMAND+=" fi ; "
fi
COMMAND+=" $SCRIPT_CMD || exit 1;"
COMMAND+=" if [[ -d '/cache' ]]; then "
COMMAND+=" rm -f /tmp/cache ; "
COMMAND+=" fi ; "
local CACHE_DIR="$DOKKU_ROOT/$APP/cache"
local CACHE_HOST_DIR="$DOKKU_HOST_ROOT/$APP/cache"
[[ -d $CACHE_DIR ]] || mkdir -p "$CACHE_DIR"
local DOCKER_ARGS=$(: | plugn trigger docker-args-deploy "$APP" "$IMAGE_TAG")
# strip --restart args from DOCKER_ARGS
local DOCKER_ARGS=$(sed -e "s/--restart=[[:graph:]]\+[[:blank:]]\?//g" <<<"$DOCKER_ARGS")
local IMAGE_SOURCE_TYPE="dockerfile"
is_image_herokuish_based "$IMAGE" && IMAGE_SOURCE_TYPE="herokuish"
DOCKER_ARGS+=$(: | plugn trigger docker-args-process-deploy "$APP" "$IMAGE_TAG" "$IMAGE_SOURCE_TYPE")
# eval args as array to respect escapes
declare -a ARG_ARRAY
eval "ARG_ARRAY=($DOCKER_ARGS)"
local DOKKU_APP_SHELL="/bin/bash"
DOKKU_APP_SHELL="$(config_get --global DOKKU_APP_SHELL || echo "$DOKKU_APP_SHELL")"
DOKKU_APP_SHELL="$(config_get "$APP" DOKKU_APP_SHELL || echo "$DOKKU_APP_SHELL")"
[[ -z "$DOKKU_APP_SHELL" ]] && DOKKU_APP_SHELL="/bin/bash"
id=$("$DOCKER_BIN" run "${DOCKER_RUN_LABEL_ARGS[@]}" $DOKKU_GLOBAL_RUN_ARGS -e DOKKU_TRACE="$DOKKU_TRACE" --label=dokku_phase_script="${PHASE_SCRIPT_KEY}" -d -v "$CACHE_HOST_DIR:/cache" "${ARG_ARRAY[@]}" "$IMAGE" "$DOKKU_APP_SHELL" -c "$COMMAND")
if test "$("$DOCKER_BIN" wait "$id")" -ne 0; then
dokku_container_log_verbose_quiet "$id"
dokku_log_fail "execution of '$SCRIPT_CMD' failed!"
fi
dokku_container_log_verbose_quiet "$id"
if [[ "$PHASE_SCRIPT_KEY" != "predeploy" ]]; then
return
fi
if ! is_image_herokuish_based "$IMAGE"; then
local DOKKU_DOCKERFILE_ENTRYPOINT=$(config_get "$APP" DOKKU_DOCKERFILE_ENTRYPOINT)
local DOKKU_DOCKERFILE_CMD=$(config_get "$APP" DOKKU_DOCKERFILE_CMD)
[[ -z "$DOKKU_DOCKERFILE_ENTRYPOINT" ]] && DOKKU_DOCKERFILE_ENTRYPOINT="$(get_entrypoint_from_image "$IMAGE")"
[[ -z "$DOKKU_DOCKERFILE_CMD" ]] && DOKKU_DOCKERFILE_CMD="$(get_cmd_from_image "$IMAGE")"
[[ -n "$DOKKU_DOCKERFILE_ENTRYPOINT" ]] && local DOCKER_COMMIT_ENTRYPOINT_CHANGE_ARG="--change='$DOKKU_DOCKERFILE_ENTRYPOINT'"
[[ -n "$DOKKU_DOCKERFILE_CMD" ]] && local DOCKER_COMMIT_CMD_CHANGE_ARG="--change='$DOKKU_DOCKERFILE_CMD'"
local DOCKER_COMMIT_ARGS="$DOCKER_COMMIT_ENTRYPOINT_CHANGE_ARG $DOCKER_COMMIT_CMD_CHANGE_ARG"
fi
eval "$DOCKER_BIN" commit "${DOCKER_COMMIT_LABEL_ARGS[@]}" "${DOCKER_COMMIT_ARGS[@]}" "$id" "$IMAGE" >/dev/null
}