fix issue with pushing docker image

Signed-off-by: Luca Stocchi <lstocchi@redhat.com>

README.md

@@ -24,7 +24,7 @@ Push-to-registry is a GitHub Action for pushing an OCI-compatible image to any r
 
   <tr>
     <td>registry</td>
-    <td>(Required) Registry where to push the image. E.g https://quay.io/yourusername/yourrepo</td>
+    <td>(Required) Registry where to push the image. E.g https://quay.io/username</td>
   </tr>
 
   <tr>
@@ -38,6 +38,47 @@ Push-to-registry is a GitHub Action for pushing an OCI-compatible image to any r
   </tr>
 </table>
 
+## Examples
+
+The example below shows how the `push-to-registry` action can be used to push an image created by the [`buildah-action`](https://github.com/redhat-actions/buildah-action) in an early step.
+
+```
+name: CI
+on: [push]
+
+jobs:
+  build:
+    name: Build image
+    runs-on: ubuntu-latest
+
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v2
+
+    - name: Maven
+      run: |
+        cd ${GITHUB_WORKSPACE}
+        mvn package
+    - name: Build Action
+      uses: redhat-actions/buildah-action@0.0.1
+      with:
+        new-image-name: petclinic
+        content: |
+          target/spring-petclinic-2.3.0.BUILD-SNAPSHOT.jar
+        entrypoint: |
+          java    
+          -jar
+          spring-petclinic-2.3.0.BUILD-SNAPSHOT.jar
+        port: 8080
+    - name: Push To Quay
+      uses: redhat-actions/push-to-registry@0.0.1
+      with:
+        image-to-push: petclinic
+        registry: ${{ secrets.QUAY_REPO }}
+        username: ${{ secrets.QUAY_USERNAME }}
+        password: ${{ secrets.QUAY_PASSWORD }}
+```
+
 
 ## Contributing
 

action.yml

@@ -13,7 +13,7 @@ inputs:
     required: false
     default: 'latest'
   registry:
-    description: 'Quay repo where to push the image'
+    description: 'Registry where to push the image (e.g quay.io/username)'
     required: true
   username:
     description: 'Username to use as credential to authenticate to the registry'

src/index.ts

@@ -4,7 +4,7 @@ import * as io from '@actions/io';
 import { CommandResult } from './types';
 
 export async function run(): Promise<void> {
-    const imageToPush = core.getInput('image-to-push');
+    let imageToPush = core.getInput('image-to-push');
     const tag = core.getInput('tag') || 'latest';
     const registry = core.getInput('registry');
     const username = core.getInput('username');
@@ -13,6 +13,7 @@ export async function run(): Promise<void> {
     // get podman cli
     const podman = await io.which('podman', true);
 
+    imageToPush = `${imageToPush}:${tag}`;
     //check if images exist in podman's local storage
     const checkImages: CommandResult = await execute(podman, ['images', '--format', 'json']);
     if (checkImages.succeeded === false) {
@@ -22,18 +23,18 @@ export async function run(): Promise<void> {
     // this is to temporarily solve an issue with the case-sensitive of the property field name. i.e it is Names or names?? 
     const nameKeyMixedCase = parsedCheckImages[0] && Object.keys(parsedCheckImages[0]).find(key => 'names' === key.toLowerCase());
     const imagesFound = parsedCheckImages.
-                            filter(image => image[nameKeyMixedCase] && image[nameKeyMixedCase].find(name => name.includes(`${imageToPush}:${tag}`))).
+                            filter(image => image[nameKeyMixedCase] && image[nameKeyMixedCase].find(name => name.includes(`${imageToPush}`))).
                             map(image => image[nameKeyMixedCase]);
     if (imagesFound.length === 0) {
         //check inside the docker daemon local storage
-        const pullFromDocker: CommandResult = await execute(podman, ['pull', `docker-daemon:${imageToPush}:${tag}`]);
+        const pullFromDocker: CommandResult = await execute(podman, ['pull', `docker-daemon:${imageToPush}`]);
         if (pullFromDocker.succeeded === false) {
             return Promise.reject(new Error(`Unable to find the image to push`));
         }
     }
 
     // push image
-    const registryUrl = `${registry.replace(/\/$/, '')}:${tag}`;
+    const registryUrl = `${registry.replace(/\/$/, '')}/${imageToPush}`;
     const push: CommandResult = await execute(podman, ['push', '--creds', `${username}:${password}`, `${imageToPush}`, `${registryUrl}`]);
     if (push.succeeded === false) {
         return Promise.reject(new Error(push.reason));