Add basic container workflow

Author: caxu-rh

.github/workflows/container-workflow.yml

@@ -0,0 +1,30 @@
+# https://docs.github.com/en/actions/writing-workflows/choosing-where-your-workflow-runs/running-jobs-in-a-container
+name: Container workflow
+run-name: Container workflow
+on: workflow_dispatch
+jobs:
+  simple-job:
+    runs-on: runner-set
+    container:
+      image: registry.access.redhat.com/ubi10/ubi:latest
+      env:
+        MY_VAR: foo
+    steps:
+      - run: echo "🎉 The job was automatically triggered by a ${{ github.event_name }} event."
+      - run: echo "🐧 This job is now running on a ${{ runner.os }} server hosted outside of GitHub!"
+      - run: echo "🔎 The name of your branch is ${{ github.ref }} and your repository is ${{ github.repository }}."
+      - name: Check out repository code
+        uses: actions/checkout@v4
+      - run: echo "💡 The ${{ github.repository }} repository has been cloned to the runner."
+      - run: echo "🖥️ The workflow is now ready to test your code on the runner."
+      - name: List files in the repository
+        run: |
+          ls ${{ github.workspace }}
+      - name: Get hostname and runner details
+        run: |
+          set -x
+          echo ${MY_VAR}
+          hostname
+          uname -a
+          cat /etc/os-release
+      - run: echo "🍏 This job's status is ${{ job.status }}."