release: provide docker images (#123)

Author: v1v

.ci/Jenkinsfile

@@ -71,22 +71,23 @@ pipeline {
         }
       }
     }
+    stage('Snapshot') {
+      options { skipDefaultCheckout() }
+      when { not { tag pattern: '.*', comparator: 'REGEXP' } }
+      steps {
+        goReleaser() {
+          sh(label: 'goreleaser --snapshot', script: 'goreleaser release --snapshot')
+        }
+      }
+    }
     stage('Release') {
       options { skipDefaultCheckout() }
       when { tag pattern: 'v\\d+\\.\\d+\\.\\d+.*', comparator: 'REGEXP' }
       steps {
-        deleteDir()
-        unstash 'source'
-        dir("${BASE_DIR}"){
-          dockerLogin(secret: "${DOCKER_ELASTIC_SECRET}", registry: "${DOCKER_REGISTRY}")
-          withGoEnv() {
-            sh(label: 'install goreleaser', script: 'go install github.com/goreleaser/[email protected]')
-            withCredentials([string(credentialsId: "${env.GITHUB_TOKEN_CREDENTIALS}", variable: 'GITHUB_TOKEN')]) {
-              // Ensure that tags are present so goreleaser can build the changelog from the last release.
-              gitCmd(cmd: 'fetch', args: '--unshallow --tags')
-              sh(label: 'goreleaser', script: 'goreleaser release')
-            }
-          }
+        goReleaser() {
+          // Ensure that tags are present so goreleaser can build the changelog from the last release.
+          gitCmd(cmd: 'fetch', args: '--unshallow --tags')
+          sh(label: 'goreleaser release', script: 'goreleaser release')
         }
       }
       post {
@@ -115,3 +116,18 @@ def notifyStatus(def args = [:]) {
                       subject: args.subject,
                       body: args.body)
 }
+
+
+def goReleaser(Closure body) {
+  deleteDir()
+  unstash 'source'
+  dir("${BASE_DIR}"){
+    dockerLogin(secret: "${DOCKER_ELASTIC_SECRET}", registry: "${DOCKER_REGISTRY}")
+    withGoEnv() {
+      sh(label: 'install goreleaser', script: 'go install github.com/goreleaser/[email protected]')
+      withCredentials([string(credentialsId: "${env.GITHUB_TOKEN_CREDENTIALS}", variable: 'GITHUB_TOKEN')]) {
+        body()
+      }
+    }
+  }
+}

.goreleaser.yml

@@ -5,4 +5,15 @@ builds:
     ldflags:
       - -X github.com/elastic/elastic-agent-changelog-tool/internal/version.CommitHash={{.ShortCommit}}
       - -X github.com/elastic/elastic-agent-changelog-tool/internal/version.SourceDateEpoch={{.CommitDate}}
-      - -X github.com/elastic/elastic-agent-changelog-tool/internal/version.Tag={{.Tag}}
+      - -X github.com/elastic/elastic-agent-changelog-tool/internal/version.Tag={{.Tag}}
+dockers:
+  - image_templates:
+    - "docker.elastic.co/observability-ci/{{.ProjectName}}"
+    - "docker.elastic.co/observability-ci/{{.ProjectName}}:{{ .Tag }}"
+    skip_push: false
+    build_flag_templates:
+    - "--pull"
+    - "--label=org.opencontainers.image.created={{.Date}}"
+    - "--label=org.opencontainers.image.title={{.ProjectName}}"
+    - "--label=org.opencontainers.image.revision={{.FullCommit}}"
+    - "--label=org.opencontainers.image.version={{.Version}}"

Dockerfile

@@ -0,0 +1,5 @@
+FROM docker.io/library/alpine:3.15.6
+
+COPY elastic-agent-changelog-tool /usr/bin/elastic-agent-changelog-tool
+
+ENTRYPOINT ["/usr/bin/elastic-agent-changelog-tool"]