attempt builds via buildx

.dockerignore

@@ -0,0 +1,4 @@
+chart
+dev
+examples
+node_modules

.travis.yml

@@ -1,23 +1,30 @@
-# if: tag IS present
-language: node_js
-node_js:
-- "12"
+dist: bionic
 sudo: required
-services:
-- docker
-install: true
+
+before_install:
+  - curl -fsSL https://get.docker.com | sh
+  - echo '{"experimental":"enabled"}' | sudo tee /etc/docker/daemon.json
+  - mkdir -p $HOME/.docker
+  - echo '{"experimental":"enabled"}' | sudo tee $HOME/.docker/config.json
+  - sudo service docker start
+  - docker info
+install:
+  - docker run --rm --privileged multiarch/qemu-user-static --reset -p yes
+  - docker buildx create --name xbuilder --use
+  - docker buildx inspect --bootstrap
+
 script: true
 deploy:
-- provider: script
-  script: bash .travis/docker-release.sh
-  skip_cleanup: true
-  on:
-    repo: democratic-csi/democratic-csi
-    all_branches: true
-    condition: $TRAVIS_BRANCH =~ ^master|next$
-- provider: script
-  script: bash .travis/docker-release.sh
-  skip_cleanup: true
-  on:
-    repo: democratic-csi/democratic-csi
-    tags: true
+  - provider: script
+    script: bash .travis/docker-release.sh
+    skip_cleanup: true
+    on:
+      repo: democratic-csi/democratic-csi
+      all_branches: true
+      condition: $TRAVIS_BRANCH =~ ^master|next$
+  - provider: script
+    script: bash .travis/docker-release.sh
+    skip_cleanup: true
+    on:
+      repo: democratic-csi/democratic-csi
+      tags: true

.travis/docker-release.sh

@@ -6,17 +6,17 @@ export DOCKER_ORG="democraticcsi"
 export DOCKER_PROJECT="democratic-csi"
 export DOCKER_REPO="${DOCKER_ORG}/${DOCKER_PROJECT}"
 
-if [[ -n "${TRAVIS_TAG}" ]];then
-	docker build --pull -t ${DOCKER_REPO}:${TRAVIS_TAG} .
-	docker push ${DOCKER_REPO}:${TRAVIS_TAG}
-elif [[ -n "${TRAVIS_BRANCH}" ]];then
-	if [[ "${TRAVIS_BRANCH}" == "master" ]];then
-		docker build --pull -t ${DOCKER_REPO}:latest .
-		docker push ${DOCKER_REPO}:latest
-	else
-		docker build --pull -t ${DOCKER_REPO}:${TRAVIS_BRANCH} .
-		docker push ${DOCKER_REPO}:${TRAVIS_BRANCH}
-	fi
+if [[ -n "${TRAVIS_TAG}" ]]; then
+  docker buildx build --progress plain --pull --push --platform linux/amd64,linux/arm/v7,linux/arm64 -t ${DOCKER_REPO}:${TRAVIS_TAG} .
+  docker push ${DOCKER_REPO}:${TRAVIS_TAG}
+elif [[ -n "${TRAVIS_BRANCH}" ]]; then
+  if [[ "${TRAVIS_BRANCH}" == "master" ]]; then
+    docker buildx build --progress plain --pull --push --platform linux/amd64,linux/arm/v7,linux/arm64 -t ${DOCKER_REPO}:latest .
+    docker push ${DOCKER_REPO}:latest
+  else
+    docker buildx build --progress plain --pull --push --platform linux/amd64,linux/arm/v7,linux/arm64 -t ${DOCKER_REPO}:${TRAVIS_BRANCH} .
+    docker push ${DOCKER_REPO}:${TRAVIS_BRANCH}
+  fi
 else
-	:
+  :
 fi

Dockerfile

@@ -1,23 +1,20 @@
 FROM debian:10-slim
 
+ARG TARGETPLATFORM
+ARG BUILDPLATFORM
+
 RUN apt-get update && apt-get install -y locales && rm -rf /var/lib/apt/lists/* \
         && localedef -i en_US -c -f UTF-8 -A /usr/share/locale/locale.alias en_US.UTF-8
 
-ENV LANG en_US.utf8
+ENV LANG=en_US.utf8 NODE_VERSION=v12.15.0
+
+RUN echo "I am running on $BUILDPLATFORM, building for $TARGETPLATFORM"
 
 # install node
-ENV NODE_VERSION=v12.13.1
-ENV NODE_DISTRO=linux-x64
-
-RUN apt-get update && \
-        apt-get install -y wget xz-utils && \
-        wget https://nodejs.org/dist/${NODE_VERSION}/node-${NODE_VERSION}-${NODE_DISTRO}.tar.xz > /dev/null 2>&1 && \
-        mkdir -p /usr/local/lib/nodejs && \
-        tar -xJf node-${NODE_VERSION}-${NODE_DISTRO}.tar.xz -C /usr/local/lib/nodejs && \
-        rm node-${NODE_VERSION}-${NODE_DISTRO}.tar.xz && \
-        rm -rf /var/lib/apt/lists/*
-
-ENV PATH=/usr/local/lib/nodejs/node-${NODE_VERSION}-${NODE_DISTRO}/bin:$PATH
+RUN apt-get update && apt-get install -y wget xz-utils
+ADD docker/node-installer.sh /usr/local/sbin
+RUN chmod +x /usr/local/sbin/node-installer.sh && node-installer.sh
+ENV PATH=/usr/local/lib/nodejs/bin:$PATH
 
 # node service requirements
 RUN apt-get update && \

docker/node-installer.sh

@@ -0,0 +1,35 @@
+#!/bin/bash
+
+set -e
+set -x
+
+PLATFORM_TYPE=${1}
+
+if [[ "${PLATFORM_TYPE}" == "build" ]]; then
+  PLATFORM=$BUILDPLATFORM
+else
+  PLATFORM=$TARGETPLATFORM
+fi
+
+if [[ "x${PLATFORM}" == "x" ]]; then
+  PLATFORM="linux/amd64"
+fi
+
+if [ "$PLATFORM" = "linux/amd64" ]; then
+  export NODE_DISTRO="linux-x64"
+elif [ "$PLATFORM" = "linux/arm64" ]; then
+  export NODE_DISTRO="linux-arm64"
+elif [ "$PLATFORM" = "linux/arm/v7" ]; then
+  export NODE_DISTRO="linux-armv7l"
+else
+  echo "unsupported/unknown PLATFORM ${PLATFORM}"
+  exit 1
+fi
+
+echo "I am installing node $NODE_VERSION $NODE_DISTRO"
+
+wget https://nodejs.org/dist/${NODE_VERSION}/node-${NODE_VERSION}-${NODE_DISTRO}.tar.xz >/dev/null 2>&1
+mkdir -p /usr/local/lib/nodejs
+tar -xJf node-${NODE_VERSION}-${NODE_DISTRO}.tar.xz -C /usr/local/lib/nodejs --strip-components=1
+rm node-${NODE_VERSION}-${NODE_DISTRO}.tar.xz
+rm -rf /var/lib/apt/lists/*

docker/npm-install-wrapper.sh

@@ -0,0 +1,23 @@
+#!/bin/bash
+
+set -e
+set -x
+
+PLATFORM=$TARGETPLATFORM
+
+if [[ "x${PLATFORM}" == "x" ]]; then
+  PLATFORM="linux/amd64"
+fi
+
+if [ "$PLATFORM" = "linux/amd64" ]; then
+  export NODE_ARCH="x64"
+elif [ "$PLATFORM" = "linux/arm64" ]; then
+  export NODE_ARCH="arm64"
+elif [ "$PLATFORM" = "linux/arm/v7" ]; then
+  export NODE_ARCH="armv7l"
+else
+  echo "unsupported/unknown PLATFORM ${PLATFORM}"
+  exit 1
+fi
+
+npm install --target_arch="${NODE_ARCH}"