Set env var REGISTRY_AUTH_FILE to work with buildah (#6)

* Set env var REGISTRY_AUTH_FILE to work with buildah

Signed-off-by: divyansh42 <diagrawa@redhat.com>

* Add info level message

Signed-off-by: divyansh42 <diagrawa@redhat.com>

* Resolve reviews

Signed-off-by: divyansh42 <diagrawa@redhat.com>

* Reslve reviews

Signed-off-by: divyansh42 <diagrawa@redhat.com>

.github/workflows/ci.yml

@@ -2,6 +2,8 @@ name: CI checks
 on:
   push:
   pull_request:
+  schedule:
+    - cron: '0 0 * * *'  # every day at midnight
 
 jobs:
   lint:

.github/workflows/example.yml

@@ -1,16 +1,19 @@
-name: Test Login
+name: Test Login and Pull
 on:
   push:
   workflow_dispatch:
+  schedule:
+    - cron: '0 0 * * *'  # every day at midnight
 
 env:
-  REGISTRY_USER: diagrawa
+  IMAGE_PATH: quay.io/redhat-github-actions/petclinic-private:latest
+  REGISTRY_USER: redhat-github-actions+redhat_actions_ci_puller
   IMAGE_REGISTRY: quay.io
   REGISTRY_PASSWORD: ${{ secrets.REGISTRY_PASSWORD }}
 
 jobs:
-  login:
+  podman-pull:
-    name: Log in to registry
+    name: Log in and pull image with Podman
     runs-on: ubuntu-20.04
     steps:
 
@@ -22,3 +25,23 @@ jobs:
           username: ${{ env.REGISTRY_USER }}
           password: ${{ env.REGISTRY_PASSWORD }}
           registry: ${{ env.IMAGE_REGISTRY }}
+
+      - name: Pull image with Podman
+        run: podman pull ${{ env.IMAGE_PATH }}
+
+  buildah-pull:
+    name: Log in and pull image with Buildah
+    runs-on: ubuntu-20.04
+    steps:
+
+      - uses: actions/checkout@v2
+
+      - name: Log in to quay.io
+        uses: ./
+        with:
+          username: ${{ env.REGISTRY_USER }}
+          password: ${{ env.REGISTRY_PASSWORD }}
+          registry: ${{ env.IMAGE_REGISTRY }}
+
+      - name: Pull image with Buildah
+        run: buildah pull ${{ env.IMAGE_PATH }}

.github/workflows/link_check.yml

@@ -6,6 +6,8 @@ on:
   pull_request:
     paths:
       - '**.md'
+  schedule:
+    - cron: '0 0 * * *'  # every day at midnight
 
 jobs:
   markdown-link-check:

README.md

@@ -1,6 +1,6 @@
 # podman-login
 [![CI checks](https://github.com/redhat-actions/podman-login/workflows/CI%20checks/badge.svg)](https://github.com/redhat-actions/podman-login/actions?query=workflow%3A%22CI+checks%22)
-[![Build](https://github.com/redhat-actions/podman-login/workflows/Test%20Login/badge.svg)](https://github.com/redhat-actions/podman-login/actions?query=workflow%3ABuild)
+[![Test Login and Pull](https://github.com/redhat-actions/podman-login/actions/workflows/example.yml/badge.svg)](https://github.com/redhat-actions/podman-login/actions/workflows/example.yml)
 [![Link checker](https://github.com/redhat-actions/podman-login/workflows/Link%20checker/badge.svg)](https://github.com/redhat-actions/podman-login/actions?query=workflow%3A%22Link+checker%22)
 <br>
 <br>

src/index.ts

@@ -6,6 +6,7 @@
 import * as core from "@actions/core";
 import * as io from "@actions/io";
 import * as os from "os";
+import * as path from "path";
 import { getInputs } from "./context";
 import { execute } from "./utils";
 import * as stateHelper from "./state-helper";
@@ -44,6 +45,14 @@ async function run(): Promise<void> {
 
     await execute(await getPodmanPath(), args);
     core.info(`✅ Successfully logged in to ${registry} as ${username}`);
+
+    // Setting REGISTRY_AUTH_FILE environment variable as buildah needs
+    // this environment variable to point to registry auth file
+    const podmanAuthFilePath = path.join("/", "tmp", `podman-run-${process.getuid()}`,
+        "containers", "auth.json");
+    const REGISTRY_AUTH_ENVVAR = "REGISTRY_AUTH_FILE";
+    core.info(`Exporting ${REGISTRY_AUTH_ENVVAR}=${podmanAuthFilePath}`);
+    core.exportVariable(REGISTRY_AUTH_ENVVAR, podmanAuthFilePath);
 }
 
 async function registryLogout(): Promise<void> {