Add date and build number as VERSION_ID to /etc/os-release

Resolves #68

.gitlab-ci.yml

@@ -227,6 +227,7 @@ release:
         sed -i "s|TEMPLATE_ROOTFS_RELEASE_URL|https://gitlab.archlinux.org/archlinux/archlinux-docker/-/releases/v${BUILD_VERSION}|" output/Dockerfile.${group}
         sed -i "s|TEMPLATE_ROOTFS_DOWNLOAD|ROOTFS=\"\$(curl -sOJL -w \"%{filename_effective}\" \"${package_url}\")\"|" output/Dockerfile.${group}
         sed -i "s|TEMPLATE_ROOTFS_HASH|$(cat output/${group}.tar.zst.SHA256)|" output/Dockerfile.${group}
+        sed -i "s|TEMPLATE_ROOTFS_VERSION|${BUILD_VERSION}|" output/Dockerfile.${group}
       done
     - >
       curl -sSf --request POST -o commit-response.json

Dockerfile.template

@@ -23,7 +23,8 @@ RUN TEMPLATE_ROOTFS_DOWNLOAD && \
 FROM scratch AS root
 COPY --from=verify /rootfs/ /
 
-RUN ldconfig
+RUN ldconfig && \
+    sed -i '/BUILD_ID/a VERSION_ID=TEMPLATE_VERSION_ID' /etc/os-release
 
 ENV LANG=en_US.UTF-8
 CMD ["/usr/bin/bash"]

Makefile

@@ -42,6 +42,7 @@ define dockerfile
 	    -e "s|TEMPLATE_ROOTFS_RELEASE_URL|Local build|" \
 	    -e "s|TEMPLATE_ROOTFS_DOWNLOAD|ROOTFS=\"$(1).tar.zst\"|" \
 	    -e "s|TEMPLATE_ROOTFS_HASH|$$(cat $(OUTPUTDIR)/$(1).tar.zst.SHA256)|" \
+	    -e "s|TEMPLATE_VERSION_ID|dev|" \
 	    Dockerfile.template > $(OUTPUTDIR)/Dockerfile.$(1)
 endef