{# integrate it into service sections to be build by Dockerfile. `pull_policy` is a docker-compose-only field — `docker stack deploy` rejects it as "Additional property pull_policy is not allowed". Skip it under swarm mode (swarm always uses the locally resolved image via --resolve-image always at deploy time). #} {{ lookup('compose_only', 'pull_policy', 'never') }} build: context: . dockerfile: Dockerfile