Ensure /bin->/guix-builder/bin exists within the container

.gitignore

@@ -1 +1,2 @@
+*~
 *.tar.gz

Dockerfile

@@ -1,7 +1,6 @@
-FROM scratch
+FROM scratch as builder
 ADD guix-tarball-pack.tar.gz /guix-builder
-
-ENV PATH=/guix-builder/bin
+ADD links.tar.gz /
 
 VOLUME /var/guix/daemon-socket/socket /gnu/store /etc/ssl
 ENTRYPOINT ["/guix-builder/bin/bash"]

Makefile

@@ -4,14 +4,20 @@ GUIX_MANIFEST := manifest.scm
 GUIX_MANIFEST_DEV := manifest-dev.scm
 
 TARBALL ?= guix-tarball-pack.tar.gz
+LINKS_TARBALL ?= links.tar.gz
 IMAGE_TAG ?= guix-builder
 
+$(LINKS_TARBALL):
+	ln -s /guix-builder/bin bin
+	tar -czvf links.tar.gz bin
+	rm bin
+
 $(TARBALL):
 	@cp $$(guix pack -R -S /bin=bin -S /etc/ssl=etc/ssl -m $(GUIX_MANIFEST)) $@
 	@chmod +w $@
 
 .PHONY: build
-build: $(TARBALL)
+build: $(TARBALL) $(LINKS_TARBALL)
 	@docker build -t $(IMAGE_TAG) .
 
 .PHONY: run
@@ -30,4 +36,4 @@ shell:
 
 .PHONY:
 clean:
-	rm $(TARBALL)
+	rm -r $(TARBALL) $(LINKS_TARBALL)

manifest-dev.scm

@@ -1,3 +1,4 @@
 (specifications->manifest
   (list "make"
+        "tar"
         "docker-cli"))