Add buildx support to circleci

.circleci/config.yml

@@ -15,6 +15,24 @@ jobs:
           version: 20.10.18
 
   # publish jobs require $DOCKERHUB_USER, $DOCKERHUB_PASS defined
+  publish_buildx:
+    docker:
+      - image: cimg/base:stable
+    steps:
+      - checkout
+      - setup_remote_docker:
+          version: 20.10.18
+      - run:
+          command: |
+            source ".circleci/parse-tag.sh"
+            DOCKERHUB_DOCKEFILE="$DOCKERHUB_DOCKEFILE_BUILDX"
+            DOCKERHUB_DESTINATION="$DOCKERHUB_REPO:$LATEST_TAG"
+            if [ -f $DOCKERHUB_DOCKEFILE ]; then
+                source ".circleci/push-image-buildx.sh"
+            else
+                echo "Skipping linuxamd64 because $DOCKERHUB_DOCKEFILE_BUILDX is not found"
+            fi
+
   publish_linuxamd64:
     docker:
       - image: cimg/base:stable
@@ -153,6 +171,7 @@ workflows:
             - publish_linuxamd64
             - publish_linuxarm32v7
             - publish_linuxarm64v8
+            - publish_buildx
           filters:
             branches:
               ignore: /.*/

.circleci/parse-tag.sh

@@ -28,6 +28,7 @@ DOCKERHUB_DESTINATION="$DOCKERHUB_REPO:$LATEST_TAG"
 DOCKERHUB_DOCKEFILE_ARM64="$NODE_NAME/$NODE_VERSION/linuxarm64v8.Dockerfile"
 DOCKERHUB_DOCKEFILE_ARM32="$NODE_NAME/$NODE_VERSION/linuxarm32v7.Dockerfile"
 DOCKERHUB_DOCKEFILE_AMD64="$NODE_NAME/$NODE_VERSION/linuxamd64.Dockerfile"
+DOCKERHUB_DOCKEFILE_BUILDX="$NODE_NAME/$NODE_VERSION/Dockerfile"
 DOCKER_OPTIONS="-H=$DOCKER_HOST"
 
 

.circleci/push-image-buildx.sh

@@ -0,0 +1,10 @@
+#!/bin/bash
+
+echo "Pushing $DOCKERHUB_DOCKEFILE to dockerhub repository $DOCKERHUB_DESTINATION"
+sudo docker $DOCKER_OPTIONS login --username=$DOCKERHUB_USER --password=$DOCKERHUB_PASS
+sudo docker buildx create --use
+DOCKER_BUILDX_OPTS="--platform linux/amd64,linux/arm64,linux/arm/v7 --push"
+sudo docker buildx build $DOCKER_BUILDX_OPTS \
+    -f "$DOCKERHUB_DOCKEFILE" \
+    -t $DOCKERHUB_DESTINATION \
+    "$NODE_NAME/$NODE_VERSION"