Multiplatform support for policy

Add multiplatfrom support for policy-base
and policy-common docker images:
   - the pom.xml files are modified to push and pull from dockerhub instead
     of nexus repository (as nexus lacks support for manifest list)
   - for each image that is built with maven, an arch suffix is added to the
     tag. The currently supported architectures are amd64 and arm64.
   - the creation of the timestamped tag is moved from the pom.xml files to
     the docker_push_manifest.sh script
   - for each image built via the Jenkins CI jobs, the docker_push_manifest.sh
     is called. The script pushes a manifest list for each tag, plus it
     creates the timestamp tags for SNAPSHOT or STAGING images,
     depending on what job called the script (merge job, or stag job)

For using the images, the name of the manifest list is to be used (which
is the same as the current images in nexus)

Issue-ID: POLICY-1997
Change-Id: If54e7ee6ac432a999844d3584e146a90e2247323
Signed-off-by: Paul Vaduva <Paul.Vaduva@enea.com>
Signed-off-by: Cristina Pauna <cristina.pauna@enea.com>
Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>

1 files changed, 59 insertions, 0 deletions

diff --git a/docker_push_manifest.sh b/docker_push_manifest.sh
new file mode 100755
index 00000000..7e2ba852
--- /dev/null
+++ b/docker_push_manifest.sh
@@ -0,0 +1,59 @@
+#!/bin/bash -ex
+#   ============LICENSE_START=======================================================
+#    Copyright (C) 2019 ENEA AB. All rights reserved.
+#   ================================================================================
+#   Licensed under the Apache License, Version 2.0 (the "License");
+#   you may not use this file except in compliance with the License.
+#   You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+#   Unless required by applicable law or agreed to in writing, software
+#   distributed under the License is distributed on an "AS IS" BASIS,
+#   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#   See the License for the specific language governing permissions and
+#   limitations under the License.
+#
+#   SPDX-License-Identifier: Apache-2.0
+#   ============LICENSE_END=========================================================
+
+# This script creates the multi-arch manifest for the docker images
+
+# shellcheck source=/dev/null
+source version.properties
+IMAGES="onap/policy-base-alpine onap/policy-common-alpine"
+ARCHES="amd64 arm64"
+TIMESTAMP=$(date -u +"%Y%m%d%H%M%S")
+MT_RELEASE='v0.9.0'
+
+# Download the manifest tool based on the host's architecture
+HOST_ARCH='amd64'
+if [ "$(uname -m)" == 'aarch64' ]; then
+    HOST_ARCH='arm64'
+fi
+wget https://github.com/estesp/manifest-tool/releases/download/${MT_RELEASE}/manifest-tool-linux-${HOST_ARCH} -O ./manifest-tool
+chmod u+x manifest-tool
+
+# Tag the images and push the manifest (do not fail if some prerequisite tags are not yet present)
+set +e
+for image in ${IMAGES}; do
+    # always (re)create both SNAPSHOT and STAGING tags to make sure everything is up to date
+    TAGS="latest ${release_version} ${release_version}-SNAPSHOT ${release_version}-SNAPSHOT-latest ${release_version}-STAGING-latest"
+    for tag in ${TAGS}; do
+        ./manifest-tool push from-args \
+            --ignore-missing \
+            --platforms "linux/${ARCHES// /,linux/}" \
+            --template "${image}:${tag}-ARCH" \
+            --target "${image}:${tag}"
+    done
+
+    # Create timestamped multiarch tag; if the script is ran from the merge
+    # job then add the SNAPSHOT suffix
+    [[ "${PARENT_JOB_NAME}" =~ merge ]] && snapshot_suffix="SNAPSHOT-"
+
+    ./manifest-tool push from-args \
+        --ignore-missing \
+        --platforms "linux/${ARCHES// /,linux/}" \
+        --template "${image}:${release_version}-${snapshot_suffix:-}ARCH" \
+        --target "${image}:${release_version}-${snapshot_suffix:-}${TIMESTAMP}"
+done