diff --git a/Readme.md b/Readme.md
index 7b459d9b..0336f068 100644
--- a/Readme.md
+++ b/Readme.md
@@ -24,7 +24,7 @@ It is a cause of failed jobs. For this case, the action `wretry.action` can retr
 ## Features
 
 - Retries Github `JavaScript` actions.
-- Retries `GitHub Docker` actions utilizing a `Dockerfile` as the image source.
+- Retries `GitHub Docker` actions utilizing a `Dockerfile`'s and Docker registry image as the source.
 - Retries private actions. The option `github_token` is used for private repositories.
 - The action can be an action repository that is not published on `Marketplace`.
 - Retries shell commands. Uses default shells to run commands.
diff --git a/main/action.yml b/main/action.yml
index 8e53d873..0f93c742 100644
--- a/main/action.yml
+++ b/main/action.yml
@@ -13,6 +13,9 @@ inputs:
   command:
     description: 'Command to run. Should be defined action or command, not both.'
     required: false
+  pre_retry_command:
+    description: 'Command to run between retries.'
+    required: false
   with:
     description: 'An options map for Github action'
     required: false
diff --git a/post/action.yml b/post/action.yml
index 743447d0..d79ff127 100644
--- a/post/action.yml
+++ b/post/action.yml
@@ -13,6 +13,9 @@ inputs:
   command:
     description: 'Command to run. Should be defined action or command, not both.'
     required: false
+  pre_retry_command:
+    description: 'Command to run between retries.'
+    required: false
   with:
     description: 'An options map for Github action'
     required: false
diff --git a/pre/action.yml b/pre/action.yml
index 3a55ed3e..aa243682 100644
--- a/pre/action.yml
+++ b/pre/action.yml
@@ -13,6 +13,9 @@ inputs:
   command:
     description: 'Command to run. Should be defined action or command, not both.'
     required: false
+  pre_retry_command:
+    description: 'Command to run between retries.'
+    required: false
   with:
     description: 'An options map for Github action'
     required: false
diff --git a/src/Docker.js b/src/Docker.js
index d453b34d..5dd0ef82 100644
--- a/src/Docker.js
+++ b/src/Docker.js
@@ -54,11 +54,31 @@ function imageBuild( actionPath, image )
     + 'and select valid workflow runner.'
   );
 
-  if( image === 'Dockerfile' )
+  const actionName = _.path.name( actionPath );
+  const imageName = `${ actionName }_repo:${ actionName }_tag`.toLowerCase();
+
+  if( _.uri.isGlobal( image ) )
+  {
+    const parsed = _.uri.parse( image );
+    const publicDockerImage = parsed.longPath;
+    const pullCommand = `docker image pull ${ publicDockerImage }`;
+    const pull = execSyncNonThrowing( pullCommand );
+    if( _.error.is( pull ) )
+    throw _.error.brief( pull );
+
+    const tagCommand = `docker image tag ${ publicDockerImage } ${ imageName }`;
+    const tagging = execSyncNonThrowing( tagCommand );
+    if( _.error.is( tagging ) )
+    throw _.error.brief( tagging );
+
+    core.info( `Docker image : ${ publicDockerImage }.` );
+    core.info( pullCommand );
+    core.info( pull.toString() );
+    core.info( tagCommand );
+  }
+  else if( _.str.ends( image, 'Dockerfile' ) && _.path.isRelative( image ) )
   {
-    const actionName = _.path.name( actionPath );
-    const imageName = `${ actionName }_repo:${ actionName }_tag`.toLowerCase();
-    const dockerfilePath = _.path.nativize( _.path.join( actionPath, 'Dockerfile' ) );
+    const dockerfilePath = _.path.nativize( _.path.join( actionPath, image ) );
     const command = `docker build -t ${ imageName } -f ${ dockerfilePath } ${ _.path.nativize( actionPath ) }`;
     const build = execSyncNonThrowing( command );
     if( _.error.is( build ) )
@@ -67,16 +87,16 @@ function imageBuild( actionPath, image )
     core.info( `Dockerfile for action : ${ dockerfilePath }.` );
     core.info( command );
     core.info( build.toString() );
-
-    return imageName;
   }
-
+  else
   _.sure
   (
     false,
     `The action does not support requested Docker image type "${ image }".`
     + '\nPlease, open an issue with the request for the feature.'
   );
+
+  return imageName;
 }
 
 //
diff --git a/test/Docker.test.s b/test/Docker.test.s
index eff660d6..31815e70 100644
--- a/test/Docker.test.s
+++ b/test/Docker.test.s
@@ -58,7 +58,6 @@ function exists( test )
 exists.timeOut = 15000;
 
 //
-
 function imageBuild( test )
 {
   const ubuntuIs = process.env.ImageOS && _.str.begins( process.env.ImageOS, 'ubuntu' );
@@ -75,6 +74,10 @@ function imageBuild( test )
   var got = docker.imageBuild( a.routinePath, 'Dockerfile' );
   test.identical( got, 'imagebuild_repo:imagebuild_tag' );
 
+  test.case = 'pull an image';
+  var got = docker.imageBuild( a.routinePath, 'docker://ghcr.io/pytooling/releaser' );
+  test.identical( got, 'imagebuild_repo:imagebuild_tag' );
+
   /* - */
 
   if( !Config.debug )
@@ -90,6 +93,8 @@ function imageBuild( test )
   test.shouldThrowErrorSync( () => docker.imageBuild( a.routinePath, 'wrong:image' ), onResolve );
 }
 
+imageBuild.timeOut = 60000;
+
 //
 
 function commandArgsFrom( test )