Add Travis multiarch build (#431)

Author: jmontleon

.travis-build-image.sh

@@ -0,0 +1,13 @@
+#!/bin/bash
+
+if [ "${TRAVIS_BRANCH}" == "${DEFAULT_BRANCH}" ]; then
+  export TAG=latest
+else
+  export TAG=${TRAVIS_BRANCH}
+fi
+
+export ARCH=$(uname -m)
+
+docker build -t ${IMAGE}:${TAG}-${ARCH} -f ${DOCKERFILE} .
+docker login quay.io -u "${QUAY_ROBOT}" -p ${QUAY_TOKEN}
+docker push ${IMAGE}:${TAG}-${ARCH}

.travis-push-manifest.sh

@@ -0,0 +1,28 @@
+#!/bin/bash
+
+if [ "${TRAVIS_BRANCH}" == "${DEFAULT_BRANCH}" ]; then
+  export TAG=latest
+else
+  export TAG=${TRAVIS_BRANCH}
+fi
+
+export DOCKER_CLI_EXPERIMENTAL=enabled
+
+#Without this docker manifest create fails
+#https://github.com/docker/for-linux/issues/396
+sudo chmod o+x /etc/docker
+
+docker manifest create \
+  ${IMAGE}:${TAG} \
+  ${IMAGE}:${TAG}-x86_64 \
+  ${IMAGE}:${TAG}-ppc64le \
+  ${IMAGE}:${TAG}-s390x \
+  ${IMAGE}:${TAG}-aarch64
+echo $?
+
+docker manifest inspect ${IMAGE}:${TAG}
+echo $?
+
+docker login quay.io -u "${QUAY_ROBOT}" -p ${QUAY_TOKEN}
+
+docker manifest push ${IMAGE}:${TAG}

.travis.yml

@@ -1,6 +1,25 @@
----
-language: go
-go:
-- 1.16.x
-script:
-  - make test
+language: bash
+os: linux
+services: docker
+sudo: required
+dist: bionic
+
+env:
+  global:
+    IMAGE: quay.io/konveyor/oadp-operator
+    DEFAULT_BRANCH: master
+    DOCKERFILE: Dockerfile
+jobs:
+  include:
+   - stage: build image
+     arch: ppc64le
+     script: ./.travis-build-image.sh
+   - arch: amd64
+     script: ./.travis-build-image.sh
+   - arch: s390x
+     script: ./.travis-build-image.sh
+   - arch: arm64
+     script: ./.travis-build-image.sh
+   - stage: push manifest
+     arch: x86_64
+     script: ./.travis-push-manifest.sh