add compose dynamic

Signed-off-by: Avi Deitcher <avi@deitcher.net>

projects/compose/Makefile

@@ -0,0 +1,49 @@
+.PHONY: tag push hash dynamic static cache-images run-static run-dynamic
+
+ORG?=linuxkitprojects
+IMAGE=compose
+DEPS=image/Dockerfile docker-compose.yml image/waitfordocker.sh image/load-images-and-compose.sh
+COMMON_IMAGES := \
+	nginx:alpine \
+	traefik
+
+
+HASH?=$(shell git ls-tree HEAD -- ./image | awk '{print $$3}')
+
+hash:
+	@echo ${HASH}
+
+tag: $(DEPS)
+	docker build --squash --no-cache -t $(ORG)/$(IMAGE):$(HASH) image/
+
+push: tag
+	DOCKER_CONTENT_TRUST=1 docker pull $(ORG)/$(IMAGE):$(HASH) || \
+	DOCKER_CONTENT_TRUST=1 docker push $(ORG)/$(IMAGE):$(HASH)
+
+dynamic:
+	mkdir -p dist
+	moby build -name compose-dynamic -dir dist/ compose-dynamic.yml
+
+static: cache-images
+	mkdir -p dist
+	moby build -name compose-static -dir dist/ compose-static.yml
+
+run-dynamic:
+	linuxkit run dist/compose-dynamic
+
+run-static:
+	linuxkit run dist/compose-static
+
+clean:
+	rm -rf image-cache
+
+image-cache/%.tar:
+	mkdir -p $(dir $@)
+	DOCKER_CONTENT_TRUST=1 docker image pull $(shell basename $@ .tar)
+	docker image save -o $@ $(shell basename $@ .tar)
+
+# use make here for each image rather than a single for loop so we can cache dependencies
+cache-images:
+	for image in $(COMMON_IMAGES) ; do \
+		make "image-cache/$${image}.tar" ; \
+	done