👷 docke rlogin only if docker enabled (#39)

Author: flaxel

action.yml

@@ -14,10 +14,10 @@ inputs:
     required: true
   dockerusername:
     description: 'Username for the Docker Registry'
-    required: true
+    required: false
   dockerpassword:
     description: 'Password for the Docker Registry'
-    required: true
+    required: false
   dockerfile:
     description: 'Path of the Dockerfile. Should be relative to input.workingdirectory'
     required: true
@@ -50,7 +50,7 @@ inputs:
     default: 'staffbot@staffbase.com'
   gitopstoken:
     description: 'GitHub Token for GitOps'
-    required: true
+    required: false
   gitopsdev:
     description: 'Files which should be updated by the GitHub Action for DEV'
     required: false
@@ -113,9 +113,11 @@ runs:
         echo ::set-output name=push::${PUSH}
 
     - name: Set up Docker Buildx
+      if: inputs.dockerenabled == 'true'
       uses: docker/setup-buildx-action@v2
 
     - name: Login to Registry
+      if: inputs.dockerenabled == 'true'
       uses: docker/login-action@v2
       with:
         registry: ${{ inputs.dockerregistry }}