feat: Adding docker build/push (#11616)

* Adding docker build/push

* Adding build script

* Trying username

* Updating build script

* Fixing script path?

* Lising envvars

* Pulling HEAD

* Actually pushing

* Fixing build / SHA

* Logout before login

* updating docker login

* Fixing docker login

* Trying stdin pwd

* Adding check for forks

* Fixing tagging

* Fixing refspec

* Updating Dockerfile-dev

* Adding license to script

* Fixing Cypress tests

.github/workflows/docker.yml

@@ -0,0 +1,20 @@
+name: Docker
+
+on: [push, pull_request]
+
+jobs:
+  build:
+    name: build
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+        with:
+          ref: ${{ github.event.pull_request.head.sha }}
+
+      - shell: bash
+        env:
+          DOCKERHUB_USER: ${{ secrets.DOCKERHUB_USER }}
+          DOCKERHUB_TOKEN: ${{ secrets.DOCKERHUB_TOKEN }}
+        run: |
+          .github/workflows/docker_build_push.sh