Update docker image build and publication. (#70)

.github/workflows/publish-to-container-registry.yml

@@ -51,12 +51,10 @@ jobs:
           images: |
             ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
           tags: |
-            type=ref,event=branch
-            type=ref,event=pr
-            type=semver,pattern={{version}}
-            type=semver,pattern={{major}}.{{minor}}
-            type=sha
-
+            type=semver,pattern=v{{version}}
+            type=edge
+      - name: Debug
+        run: echo ${{ steps.meta.outputs }}
       - name: Build and publish with Gradle Wrapper
         uses: gradle/[email protected]
         if: github.event_name != 'pull_request'
@@ -81,4 +79,4 @@ jobs:
             bootBuildImage
             --imageName=${{ fromJSON(steps.meta.outputs.json).tags[0] }}
             --publishImage
-            --full-stacktrace
+            --full-stacktrace

build.gradle.kts

@@ -61,18 +61,22 @@ springBoot {
 }
 
 tasks.named<BootBuildImage>("bootBuildImage") {
-    imageName.set("${project.name}")
+    imageName.set("$group/${project.name}")
     publish.set(false)
+    // get the BP_OCI_* from env, for https://github.com/paketo-buildpacks/image-labels
+    // get the BP_JVM_* from env, jlink optimisation
+    environment.set(System.getenv())
+    val env = environment.get()
     docker {
         publishRegistry {
-            url = System.getenv("REGISTRY_URL")
-            username = System.getenv("REGISTRY_USERNAME")
-            password = System.getenv("REGISTRY_PASSWORD")
+            env["REGISTRY_URL"]?.let { url = it }
+            env["REGISTRY_USERNAME"]?.let { username = it }
+            env["REGISTRY_PASSWORD"]?.let { password = it }
+        }
+        env["DOCKER_METADATA_OUTPUT_TAGS"]?.let { tagStr ->
+            tags = tagStr.split(delimiters = arrayOf("\n", " ")).onEach { println("Tag: $it") }
         }
     }
-    // get the BP_OCI_* from env, for https://github.com/paketo-buildpacks/image-labels
-    // get the BP_JVM_* from env, jlink optimisation
-    environment.set(System.getenv())
 }
 
 spotless {