add image-names output

Signed-off-by: CrazyMax <1951866+crazy-max@users.noreply.github.com>

Author: crazy-max

.github/workflows/bake.yml

@@ -141,6 +141,9 @@ on:
       image-digest:
         description: "Digest of the built image (for image output if pushed)"
         value: ${{ jobs.finalize.outputs.image-digest }}
+      image-names:
+        description: "List of image names (for image output if pushed)"
+        value: ${{ jobs.finalize.outputs.image-names }}
       output-type:
         description: "Build output type"
         value: ${{ jobs.finalize.outputs.output-type }}
@@ -908,6 +911,7 @@ jobs:
       cosign-verify-commands: ${{ steps.set.outputs.cosign-verify-commands }}
       artifact-name: ${{ inputs.artifact-upload && inputs.artifact-name || '' }}
       image-digest: ${{ steps.manifest.outputs.digest }}
+      image-names: ${{ steps.manifest.outputs.names }}
       output-type: ${{ inputs.output }}
       signed: ${{ needs.prepare.outputs.sign }}
     needs:
@@ -983,6 +987,7 @@ jobs:
             }
             
             let digest;
+            const names = [];
             for (const imageName of inpImageNames) {
               const tags = [];
               for (const tag of inpTagNames) {
@@ -999,12 +1004,16 @@ jobs:
                   return;
                 }
                 digest = result.digest;
+                names.push(...result.imageNames);
                 core.info(`Manifest created: ${imageName}@${result.digest}`);
               }
             }
             if (digest) {
               core.setOutput('digest', digest);
             }
+            if (names.length > 0) {
+              core.setOutput('names', names.join('\n'));
+            }
       -
         name: Merge artifacts
         if: ${{ inputs.output == 'local' && inputs.artifact-upload }}

.github/workflows/build.yml

@@ -144,6 +144,9 @@ on:
       image-digest:
         description: "Digest of the built image (for image output if pushed)"
         value: ${{ jobs.finalize.outputs.image-digest }}
+      image-names:
+        description: "List of image names (for image output if pushed)"
+        value: ${{ jobs.finalize.outputs.image-names }}
       output-type:
         description: "Build output type"
         value: ${{ jobs.finalize.outputs.output-type }}
@@ -762,6 +765,7 @@ jobs:
       cosign-verify-commands: ${{ steps.set.outputs.cosign-verify-commands }}
       artifact-name: ${{ inputs.artifact-upload && inputs.artifact-name || '' }}
       image-digest: ${{ steps.manifest.outputs.digest }}
+      image-names: ${{ steps.manifest.outputs.names }}
       output-type: ${{ inputs.output }}
       signed: ${{ needs.prepare.outputs.sign }}
     needs:
@@ -836,6 +840,7 @@ jobs:
             }
             
             let digest;
+            const names = [];
             for (const imageName of inpImageNames) {
               const tags = [];
               for (const tag of inpTagNames) {
@@ -852,12 +857,16 @@ jobs:
                   return;
                 }
                 digest = result.digest;
+                names.push(...result.imageNames);
                 core.info(`Manifest created: ${imageName}@${result.digest}`);
               }
             }
             if (digest) {
               core.setOutput('digest', digest);
             }
+            if (names.length > 0) {
+              core.setOutput('names', names.join('\n'));
+            }
       -
         name: Merge artifacts
         if: ${{ inputs.output == 'local' && inputs.artifact-upload }}

README.md

@@ -14,8 +14,8 @@ ___
     * [Secrets](#secrets)
     * [Outputs](#outputs)
   * [Bake reusable workflow](#bake-reusable-workflow)
-    * [Inputs](#inputs)
-    * [Secrets](#secrets)
+    * [Inputs](#inputs-1)
+    * [Secrets](#secrets-1)
     * [Outputs](#outputs-1)
 
 ## Overview
@@ -267,6 +267,7 @@ with `builder-outputs: ${{ toJSON(needs.<job_id>.outputs) }}`.
 | `cosign-verify-commands` | List   | Newline-delimited `cosign verify` commands generated when signing is enabled           |
 | `artifact-name`          | String | Name of the uploaded merged artifact (for `local` output with `artifact-upload: true`) |
 | `image-digest`           | String | Digest of the built image manifest (for `image` output when pushed)                    |
+| `image-names`            | List   | List of image names (for `image` output when pushed)                                   |
 | `output-type`            | String | Output type selected for the workflow (`image` or `local`)                             |
 | `signed`                 | Bool   | Whether attestation manifests or local artifacts were signed                           |
 
@@ -389,5 +390,6 @@ with `builder-outputs: ${{ toJSON(needs.<job_id>.outputs) }}`.
 | `cosign-verify-commands` | List   | Newline-delimited `cosign verify` commands generated when signing is enabled           |
 | `artifact-name`          | String | Name of the uploaded merged artifact (for `local` output with `artifact-upload: true`) |
 | `image-digest`           | String | Digest of the built image manifest (for `image` output when pushed)                    |
+| `image-names`            | List   | List of image names (for `image` output when pushed)                                   |
 | `output-type`            | String | Output type selected for the workflow (`image` or `local`)                             |
 | `signed`                 | Bool   | Whether attestation manifests or local artifacts were signed                           |