docker-compose

#!/bin/bash
set -e

STATE="$1"
FILES="$2"

prev_containers_file="$FILES"/tmp/prev_containers.list

case "$STATE" in

    NeedsArtifactReboot)
        echo "No"
        ;;

    SupportsRollback)
        echo "Yes"
        ;;

    Download)
        command -v docker >/dev/null 2>&1 || { echo >&2 "ERROR: Must have docker installed to run this update module."; exit 1; }
        command -v docker-compose >/dev/null 2>&1 || { echo >&2 "ERROR: Must have docker-compose installed to run this update module."; exit 1; }
        ;;

    ArtifactInstall)
        >&2 echo "Storing reference on running containers for rollback to $prev_containers_file"
        docker ps -q > "$prev_containers_file"

        >&2 echo "Running docker compose"
        COMPOSE_FILE=$(jq -r ".compose_file" "$FILES"/header/meta-data)
        PROJECT_NAME=$(jq -r ".project_name" "$FILES"/header/meta-data)
        ENVFILE=$(jq -r ".envfile" "$FILES"/header/meta-data)
        docker-compose --file "$FILES"/files/"$COMPOSE_FILE" --env-file "$FILES"/files/"$ENVFILE" --project-name "$PROJECT_NAME" pull
        docker-compose --file "$FILES"/files/"$COMPOSE_FILE" --env-file "$FILES"/files/"$ENVFILE" --project-name "$PROJECT_NAME" up --detach --no-color --remove-orphans
        ;;

    ArtifactRollback)
        >&2 echo "Container rollback started"
        [ -f "$prev_containers_file" ] || (>&2 echo "ERROR: Failed to find rollback reference file [$prev_containers_file]" && exit 1)

        >&2 echo "Stopping all running containers"
        [ -n  "$(docker ps -q)" ] && docker stop "$(docker ps -q)"

        >&2 echo "Starting containers running prior to the update"
        [ -n "$(cat $prev_containers_file)" ] && docker start "$(cat $prev_containers_file)"
        ;;

    ArtifactCommit)
        >&2 echo "Running docker cleanup"
        docker system prune --force
        ;;
esac

exit 0