add docker build gh action

Signed-off-by: Peter Balogh <[email protected]>

.github/workflows/docker.yaml

@@ -0,0 +1,26 @@
+name: Docker Build
+on:
+  push:
+    tags:
+      - "[0-9]+.[0-9]+.[0-9]+"
+    branches:
+      - docker-build
+
+jobs:
+  docker:
+    name: Docker
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v2
+      - name: Build jwt-to-rbac
+        uses: docker/build-push-action@v1
+        with:
+          username: ${{ github.actor }}
+          password: ${{ secrets.CR_PAT }}
+          registry: ghcr.io
+          repository: banzaicloud/banzai-cli
+          dockerfile: Dockerfile
+          tag_with_ref: true
+          add_git_labels: true
+          tags: latest

README.md

@@ -57,7 +57,7 @@ Select organization
 $ docker run --rm -ti -v $(PWD)/banzai-cli:/root/ ghcr.io/banzaicloud/banzai-cli organization select
 ```
 
-List clusters:
+List clusters
 ```
 $ docker run --rm -ti -v $(PWD)/banzai-cli:/root/ ghcr.io/banzaicloud/banzai-cli cluster list
 ```