services: app: image: "quay.io/epicmorg/crowd:2.6.3" build: context: . app-jdk6: image: "quay.io/epicmorg/crowd:2.6.3-jdk6" build: context: . app-jdk7: image: "quay.io/epicmorg/crowd:2.6.3-jdk7" build: context: . dockerfile: Dockerfile.jdk7