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--- gitlab-ci-multiplatform [2021/01/09 09:49] – [Create buildx enabled docker image for builds] baumi
+++ gitlab-ci-multiplatform [2021/01/09 10:07] (current) – [Enable Emulators] baumi
@@ Line 1: / Line 1: @@
 ====== Gitlab CI MultiPlatform Build ======
-===== Enable Emulators =====
+===== Enable binary formats =====
-<code>
+<code bash>
-# docker run -it --rm --privileged tonistiigi/binfmt --install all
+$ docker run --rm --privileged tonistiigi/binfmt --install all
 {
   "supported": [
@@ Line 26: / Line 26: @@
 ===== Create buildx enabled docker image for builds =====
 <file bash Dockerfile>
+ARG BUILDX_VERSION=0.4.2
+ARG DOCKER_VERSION=latest
+FROM alpine AS fetcher
+RUN apk add curl
+ARG BUILDX_VERSION
+RUN curl -L \
+  --output /docker-buildx \
+  "https://github.com/docker/buildx/releases/download/v${BUILDX_VERSION}/buildx-v${BUILDX_VERSION}.linux-amd64"
+RUN chmod a+x /docker-buildx
+ARG DOCKER_VERSION
+FROM docker:${DOCKER_VERSION}
+COPY --from=fetcher /docker-buildx /usr/lib/docker/cli-plugins/docker-buildx
 </file>
-Build image
+Credits to [[https://github.com/jdrouet|Jérémie Drouet]]
+==== Build & push image ====
 <code bash>