add build script

.github/workflows/build-image.yml

@@ -0,0 +1,36 @@
+name: Docker Build Image and Deploy to AWS ECR
+on:
+  push:
+    branches: ["main"]
+  pull_request:
+    branches: ["main"]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+
+    - name: Checkout repo
+      uses: actions/checkout@v4
+
+    - name: Configure AWS credentials
+      uses: aws-actions/configure-aws-credentials@v4
+      with:
+        aws-access-key-id: ${{ secrets.AWS_ACCESS_KEY_ID }}
+        aws-secret-access-key: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
+        aws-session-token: ${{ secrets.AWS_SESSION_TOKEN }}
+        aws-region: ca-central-1
+
+    - name: Login to Amazon ECR
+      id: login-ecr
+      uses: aws-actions/amazon-ecr-login@v2
+
+    - name: Build, tag, and push image to Amazon ECR
+      env:
+        ECR_REGISTRY: ${{ secrets.AWS_REGISTRY }}
+        ECR_REPOSITORY: scheduler-api
+        IMAGE_TAG: latest
+      run: |
+        docker build -t $ECR_REGISTRY/$ECR_REPOSITORY:$IMAGE_TAG .
+        docker push $ECR_REGISTRY/$ECR_REPOSITORY:$IMAGE_TAG