services: app: image: "quay.io/epicmorg/crowd:3.4.5" build: context: . app-jdk6: image: "quay.io/epicmorg/crowd:3.4.5-jdk6" build: context: . app-jdk7: image: "quay.io/epicmorg/crowd:3.4.5-jdk7" build: context: . dockerfile: Dockerfile.jdk7