feat(CI): Adds Travis CI support

Signed-off-by: Prabhav Thali <[email protected]>

.travis.yml

@@ -0,0 +1,147 @@
+language: go
+
+go:
+- 1.12.8
+
+os: linux
+dist: focal
+
+git:
+  depth: false
+
+services:
+  - docker
+
+env:  
+   global:
+   - TAG=nightly
+   - RECREATE_TAGS=false
+   - NO_COMMIT=''
+   - REGISTRY=quay.io
+   - ORGANIZATION=eclipse
+   - IMAGE=che-machine-exec
+
+install:
+  - git remote set-url origin https://[email protected]/eclipse-che/che-machine-exec.git
+  - export SHORT_SHA=$(git rev-parse --short HEAD)
+  - echo "$DOCKER_PASSWORD" | docker login -u "$DOCKER_USERNAME" --password-stdin
+  - echo "$QUAY_PASSWORD" | docker login quay.io -u "$QUAY_USERNAME " --password-stdin
+
+jobs:
+  include:
+   - stage: Code Coverage Report
+     if: type = push
+     arch: amd64
+     install: 
+       - export GO111MODULE="on" 
+       - go get ${gobuild_args} ./...
+     script:
+     - |
+       echo "" > coverage.txt
+       export CHE_WORKSPACE_ID=test_id; go test -v ./... -coverprofile coverage.txt
+       bash <(curl -s https://codecov.io/bash)
+
+   - &unit-test
+     stage: Unit tests and Docker build PR
+     if: type = pull_request
+     install: 
+       - export GO111MODULE="on" 
+       - go get ${gobuild_args} ./...
+     script: bash .travis/pr_check.sh
+     name: PR check on amd64 
+     arch: amd64
+   - <<: *unit-test
+     name: PR check on arm64
+     arch: arm64
+   - <<: *unit-test
+     name: PR check on ppc64le
+     arch: ppc64le
+   - <<: *unit-test
+     name: PR check on s390x
+     arch: s390x
+
+   - &nightly-build
+     stage: Build and push both short SHA tag and nightly tag
+     if: type = push AND branch = main AND env(TAG) = "nightly"
+     script:
+       - bash .travis/build_image.sh
+     name: Build image on amd64
+     arch: amd64
+
+   - <<: *nightly-build
+     name: Build image on arm64
+     arch: arm64
+
+   - <<: *nightly-build
+     name: Build image on ppc64le
+     arch: ppc64le
+
+   - <<: *nightly-build
+     name: Build image on s390x
+     arch: s390x
+
+   - stage: Publish multiarch image with nightly & short_sha tag
+     if: type = push AND branch = main AND env(TAG) = "nightly"
+     script: bash .travis/publish_multiarch.sh
+
+   - stage: Check existing tags
+     if: type = api AND env(TAG) != "nightly"
+     arch: amd64
+     script: 
+     - |
+       set +e
+       VERSION=$TAG
+       EXISTING_TAG=$(git ls-remote --exit-code origin refs/tags/${VERSION})
+       if [[ -n ${EXISTING_TAG} ]]; then
+          if [[ ${RECREATE_TAGS} == "true" ]]; then
+            echo "[INFO] Removing tag for ${VERSION} version. New tag will be recreated during release."
+            git push origin :$VERSION
+          else
+            echo "[ERROR] Cannot proceed with release - tag ${EXISTING_TAG} already exists."
+            exit 1
+          fi
+       else
+          echo "[INFO] No existing tags detected for $VERSION"
+       fi
+
+   - &release-build
+     stage: Build images for release version
+     if: type = api AND env(TAG) != "nightly"
+     script:
+       - bash .travis/build_image.sh
+     name: Build image on amd64
+     arch: amd64
+
+   - <<: *release-build
+     name: Build image on arm64
+     arch: arm64
+
+   - <<: *release-build
+     name: Build image on ppc64le
+     arch: ppc64le
+
+   - <<: *release-build
+     name: Build image on s390x
+     arch: s390x
+
+   - stage: Publish multiarch image with release tag
+     if: type = api AND env(TAG) != "nightly"
+     script: bash .travis/publish_multiarch.sh
+
+   - stage: Tag release and notify on mattermost
+     if: type = api AND env(TAG) != "nightly"
+     script: 
+       - git config --global user.name "Mykhailo Kuznietsov"
+       - git config --global user.email "[email protected]"
+       - bash make-release.sh --version $TAG --tag-release $NO_COMMIT
+     after_success:
+       - |
+         set -e
+         echo "{\"username\":\"che-bot\",\"channel\":\"eclipse-che-releases\",\"text\":\":white_check_mark: Che Machine Exec ${TAG} has been released: https://quay.io/eclipse/che-machine-exec:${TAG}\"}" > mattermost.json
+         curl -i -X POST -H 'Content-Type: application/json' -d @mattermost.json $MATTERMOST_WEBHOOK_URL
+
+     after_failure:
+       - |
+         set -e
+         echo "{\"username\":\"che-bot\",\"channel\":\"eclipse-che-releases\",\"text\":\":no_entry_sign: Che Machine Exec ${TAG} release has failed: https://github.com/eclipse-che/che-machine-exec/actions/workflows/release.yml\"}" > mattermost.json
+         curl -i -X POST -H 'Content-Type: application/json' -d @mattermost.json $MATTERMOST_WEBHOOK_URL

.travis/build_image.sh

@@ -0,0 +1,12 @@
+#!/bin/bash
+set -e
+
+# Build images
+docker build -f build/dockerfiles/Dockerfile -t "${REGISTRY}/${ORGANIZATION}/${IMAGE}:$TAG-${TRAVIS_CPU_ARCH}" .
+docker push "${REGISTRY}/${ORGANIZATION}/${IMAGE}:$TAG-${TRAVIS_CPU_ARCH}"
+
+# Tag image with short_sha in case of nightly build
+if [[ "$TAG" == "nightly" ]]; then
+    docker tag "${REGISTRY}/${ORGANIZATION}/${IMAGE}:$TAG-${TRAVIS_CPU_ARCH}" "${REGISTRY}/${ORGANIZATION}/${IMAGE}:${SHORT_SHA}-${TRAVIS_CPU_ARCH}"
+    docker push "${REGISTRY}/${ORGANIZATION}/${IMAGE}:${SHORT_SHA}-${TRAVIS_CPU_ARCH}"
+fi

.travis/pr_check.sh

@@ -0,0 +1,11 @@
+#!/bin/bash
+
+set -e
+
+# Build che-machine-exec binary and execute unit tests
+CGO_ENABLED=0 GOOS=linux go build -mod=vendor -a -ldflags '-w -s' -a -installsuffix cgo -o che-machine-exec .
+export CHE_WORKSPACE_ID=test_id
+go test ./... -test.v
+
+# Build image with pr-check tag 
+docker build -f build/dockerfiles/Dockerfile -t "${REGISTRY}/${ORGANIZATION}/${IMAGE}:pr-check-${TRAVIS_CPU_ARCH}" . 

.travis/publish_multiarch.sh

@@ -0,0 +1,18 @@
+#!/bin/bash
+set -e
+
+# Create amend with images built on individual architectures
+AMEND=""
+AMEND+=" --amend ${REGISTRY}/${ORGANIZATION}/${IMAGE}:$TAG-amd64";
+AMEND+=" --amend ${REGISTRY}/${ORGANIZATION}/${IMAGE}:$TAG-arm64";
+AMEND+=" --amend ${REGISTRY}/${ORGANIZATION}/${IMAGE}:$TAG-ppc64le";
+AMEND+=" --amend ${REGISTRY}/${ORGANIZATION}/${IMAGE}:$TAG-s390x";
+
+# Create manifest and push multiarch image
+docker manifest create "${REGISTRY}/${ORGANIZATION}/${IMAGE}:${TAG}" $AMEND
+docker manifest push "${REGISTRY}/${ORGANIZATION}/${IMAGE}:${TAG}"
+
+if [[ "$TAG" == "nightly" ]]; then
+    docker manifest create "${REGISTRY}/${ORGANIZATION}/${IMAGE}:${SHORT_SHA}" $AMEND
+    docker manifest push "${REGISTRY}/${ORGANIZATION}/${IMAGE}:${SHORT_SHA}"
+fi

make-release.sh

@@ -1,20 +1,15 @@
 #!/bin/bash
 # Release process automation script.
 # Used to create branch/tag, update VERSION files
-# and and trigger release by force pushing changes to the release branch
+# and trigger release by force pushing changes to the release branch
 
-# set to 1 to actually trigger changes in the release branch
-TRIGGER_RELEASE=0
+# set to 1 to actually tag changes
+TAG_RELEASE=0
 NOCOMMIT=0
 
-REGISTRY="quay.io"
-DOCKERFILE="build/dockerfiles/Dockerfile"
-ORGANIZATION="eclipse"
-IMAGE="che-machine-exec"
-
 while [[ "$#" -gt 0 ]]; do
   case $1 in
-    '-t'|'--trigger-release') TRIGGER_RELEASE=1; shift 0;;
+    '-t'|'--tag-release') TAG_RELEASE=1; shift 0;;
     '-v'|'--version') VERSION="$2"; shift 1;;
     '-n'|'--no-commit') NOCOMMIT=1; shift 0;;
   esac
@@ -23,23 +18,15 @@ done
 
 usage ()
 {
-  echo "Usage: $0 --version [VERSION TO RELEASE] [--trigger-release]"
-  echo "Example: $0 --version 7.7.0 --trigger-release"; echo
+  echo "Usage: $0 --version [VERSION TO RELEASE] [--tag-release]"
+  echo "Example: $0 --version 7.7.0 --tag-release"; echo
 }
 
 if [[ ! ${VERSION} ]]; then
   usage
   exit 1
 fi
 
-releaseMachineExec() {
-  # docker buildx includes automated push to registry, so build using tag we want published, not just local ${IMAGE}
-  docker buildx build \
-    --tag "${REGISTRY}/${ORGANIZATION}/${IMAGE}:${VERSION}" --push \
-    -f ./${DOCKERFILE} . --platform "linux/amd64,linux/ppc64le,linux/arm64" | cat
-  echo "Pushed ${REGISTRY}/${ORGANIZATION}/${IMAGE}:${VERSION}"
-}
-
 # derive branch from version
 BRANCH=${VERSION%.*}.x
 
@@ -73,10 +60,7 @@ if [[ ${NOCOMMIT} -eq 0 ]]; then
   git push origin "${BRANCH}"
 fi
 
-if [[ $TRIGGER_RELEASE -eq 1 ]]; then
-  # push new branch to release branch to trigger CI build
-  releaseMachineExec
-
+if [[ $TAG_RELEASE -eq 1 ]]; then
   # tag the release
   git checkout "${BRANCH}"
   git tag "${VERSION}"