From: Aleš Mrázek <ales.mrazek@nic.cz>
Date: Wed, 30 Oct 2024 10:47:15 +0000 (+0100)
Subject: scripts: created Makefile.docker
X-Git-Tag: v6.0.9~4^2~2
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=refs%2Fenvironments%2Fdocs-develop-dock-jputok%2Fdeployments%2F5436;p=thirdparty%2Fknot-resolver.git

scripts: created Makefile.docker
---

diff --git a/scripts/Makefile.docker b/scripts/Makefile.docker
new file mode 100644
index 000000000..f32386e60
--- /dev/null
+++ b/scripts/Makefile.docker
@@ -0,0 +1,45 @@
+# Based on https://netfuture.ch/2020/05/multi-arch-docker-image-easy/
+#
+# Example: make -f Makefile.docker docker-multiarch
+
+REGISTRY	= cznic
+BASETAG		= ${REGISTRY}/knot-resolver
+PLATFORMS	= linux/amd64,linux/arm/v7,linux/arm64/v8
+
+RELEASE		= $(shell git describe --abbrev=0 --exact-match)
+RELTAG		= $(shell [ -n "${RELEASE}" ] && echo "-t ${BASETAG}:${RELEASE}" || echo "")
+
+BUILDXDETECT	= ${HOME}/.docker/cli-plugins/docker-buildx
+QEMUDETECT	= /proc/sys/fs/binfmt_misc/qemu-m68k
+
+docker-multiarch: qemu buildx docker-multiarch-builder
+	docker login
+	docker buildx build --no-cache --builder docker-multiarch --pull --push \
+	                    --platform ${PLATFORMS} ${RELTAG} ..
+
+qemu: ${QEMUDETECT}
+${QEMUDETECT}:
+	docker pull multiarch/qemu-user-static
+	docker run --privileged multiarch/qemu-user-static --reset -p yes
+	docker ps -a | sed -n 's, *multiarch/qemu-user-static.*,,p' \
+	  | (xargs docker rm 2>&1 || \
+	    echo "Cannot remove docker container on ZFS; retry after next reboot") \
+	  | grep -v 'dataset is busy'
+
+buildx: ${BUILDXDETECT}
+${BUILDXDETECT}:
+	@echo
+# Output of `uname -m` is too different
+	@echo '*** `docker buildx` missing. Install binary for this machine architecture'
+	@echo '*** from `https://github.com/docker/buildx/releases/latest`'
+	@echo '*** to `~/.docker/cli-plugins/docker-buildx` and `chmod +x` it.'
+	@echo
+	@exit 1
+
+docker-multiarch-builder: qemu buildx
+	if ! docker buildx ls | grep -w docker-multiarch > /dev/null; then \
+		docker buildx create --name docker-multiarch && \
+		docker buildx inspect --builder docker-multiarch --bootstrap; \
+	fi
+
+.PHONY: qemu buildx docker-multiarch docker-multiarch-builder
\ No newline at end of file