qcow2-fuse experiments in Docker

Still suffering from vasi/qcow2-fuse#4

.gitignore

@@ -3,6 +3,7 @@
 /id_rsa.pub
 /image/alpine-make-vm-image
 
+.docker-image.*
 *.tmp
 
 # Created by https://www.toptal.com/developers/gitignore/api/terraform

Dockerfile.build

@@ -0,0 +1,14 @@
+ARG ALPINE_VERSION
+FROM docker.io/library/alpine:$ALPINE_VERSION
+# https://github.com/vasi/qcow2-fuse/issues/4
+RUN set -ex \
+  && apk add libgcc fuse qemu-img \
+  && apk add --virtual .build-deps \
+   curl \
+   rust \
+   cargo \
+   fuse-dev \
+   pkgconf \
+  && cargo install --root /usr/local qcow2-fuse \
+  && apk del .build-deps \
+  && rm -rf /tmp/* /var/cache/apk/* /root/.cargo

Makefile

@@ -4,7 +4,7 @@ QEMU_IMG = qemu-img
 JQ = jq
 SSH = ssh
 
-alpine.branch = v3.15
+alpine.version = 3.15
 alpine.qcow2.size = 8G
 alpine.qcow2.opts = -o nocow=on
 alpine-make-vm-image.url = https://raw.githubusercontent.com/alpinelinux/alpine-make-vm-image/v0.8.0/alpine-make-vm-image
@@ -27,14 +27,40 @@ destroy:
 	$(TF) destroy -auto-approve
 	-rm terraform.tfstate terraform.tfstate.backup
 
+.docker-image.%: Dockerfile.%
+	docker build --iidfile '[email protected]' --build-arg ALPINE_VERSION='$(alpine.version)' - <'$^'
+	mv -- '[email protected]' '$@'
+
+.PHONY: docker-test
+docker-test: .docker-image.build
+docker-test: QEMU_IMG = docker run --rm \
+  --volume '$(CURDIR):/build' --workdir /build \
+  --user $(shell id -u):$(shell id -g) \
+  --entrypoint qemu-img \
+  '$(shell cat .docker-image.build)'
+docker-test: SUDO = docker run --rm \
+  --volume '$(CURDIR):/build' --workdir /build \
+  '$(shell cat .docker-image.build)'
+docker-test: alpine.qcow2
+
+# $(eval image_format = $(patsubst .%,%,$(suffix $@)))
+# @echo Building $@ ...
+# $(MAKE) alpine.qcow2 QEMU_IMG='docker run --rm $(shell cat .docker-image.build) --user $(shell id -u):$(shell id -g)'
+
+# @[ ! -f '$@' ] || rm -f -- '$@'
+# docker run --rm docker.io/library/alpine:'$(alpine.branch)' \
+# 	--user '$(shell id -u):$(shell id -g)' \
+# 	sh -c
+# -rm terraform.tfstate terraform.tfstate.backup
+
 alpine.qcow2: image/alpine-make-vm-image image/packages image/build.sh
 	$(eval image_format = $(patsubst .%,%,$(suffix $@)))
 	@echo Building $@ ...
 	@[ ! -f '$@' ] || rm -f -- '$@'
 	@{ \
 	  $(QEMU_IMG) create -f '$(image_format)' $($@.opts) '[email protected]' '$([email protected])' \
 	  && $(SUDO) image/alpine-make-vm-image \
-	    --branch '$(alpine.branch)' \
+	    --branch 'v$(alpine.version)' \
 	    --image-format '$(image_format)' \
 	    --packages '$(shell cat image/packages)' \
 	    --script-chroot \
@@ -70,6 +96,8 @@ clean:
 	-rm -f image/alpine-make-vm-image alpine.qcow2 alpine.qcow2.tmp
 	-rm -rf .terraform
 	-rm id_rsa id_rsa.pub
+	-docker rmi "$(shell cat .docker-image.*)"
+	-rm .docker-image.*
 
 .terraform.lock.hcl: main.tf
 	$(TF) init