feat: add latest_tag input to generate latest tag (#73)

README.md

@@ -15,6 +15,8 @@ GitHub Action for build and push docker images, Sysdig way
 
 - `dockerfile`:  path to docker file (defaults to {{context_path}}/Dockerfile)
 - `dry_run`: whether to actually create git tag and push the image (default: false)
+- `external_tag`: use this tag instead of having the action calculate it
+- `latest_tag`: "generate `latest` tag for the image". Default: `false`
 - `push_to_artifactory`: whether push image to artifactory (default: true)
 - `push_to_quay`: whether push image to quay.io (default: false)
 - `artifactory_prefix`: prefix for artifactory repository. Default: `docker.internal.sysdig.com`

action.yml

@@ -35,9 +35,14 @@ inputs:
     required: false
 
   external_tag:
-    description: "use this provided tag instead of the having the action calculate it"
+    description: "use this tag instead of having the action calculate it"
     required: false
 
+  latest_tag:
+    description: "generate `latest` tag for the image"
+    required: false
+    default: "false"
+
   context_path:
     description: "path to context directory (where the build starts)"
     required: true
@@ -283,7 +288,7 @@ runs:
       with:
         images: ${{ steps.build_image_names.outputs.names }}
         flavor: |
-          latest=auto
+          latest=${{ inputs.latest_tag }}
           prefix=
           suffix=
         labels: |