Create docker-image.yml

Adding yaml for github actions

.github/workflows/docker-image.yml

@@ -0,0 +1,24 @@
+name: Docker Image CI
+
+on:
+  push:
+    branches: [ "main" ]
+  pull_request:
+    branches: [ "main" ]
+
+jobs:
+
+  build:
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v3
+
+    - name: Build the Docker image
+      run: docker build . --file Dockerfile --tag jhonesto:igpt
+
+    - name: Push to dockerhub registry
+      run: |
+        echo "${{ secrets.DOCKERHUB }}" | docker login -u jhonesto --password-stdin
+        docker push jhonesto/igpt:latest