feat(ci): add workflow for deploying to DigitalOcean Kubernetes

.github/workflows/deploy-api.yml

@@ -0,0 +1,48 @@
+name: Deploy API
+
+on:
+  push:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    name: build-main-api
+    steps:
+      - name: Check out code
+        uses: actions/checkout@v2
+
+      - name: Login to Docker Hub
+        run: echo ${{ secrets.DOCKER_HUB_ACCESS_TOKEN }} | docker login -u ${{ secrets.DOCKER_HUB_USERNAME }} --password-stdin
+
+      - name: Build, tag, and push image to Docker Hub
+        run: |
+          docker build .. --file docker-conf/Dockerfile-django-api --tag ${{ secrets.DOCKER_REGISTRY }}/algova-django-api:${GITHUB_SHA::7}
+          docker push ${{ secrets.DOCKER_REGISTRY }}/algova-django-api:latest
+
+  deploy:
+    needs: [build]
+    runs-on: ubuntu-latest
+    name: deploy-main-api
+    steps:
+      - name: Checkout main
+        uses: actions/checkout@v2
+
+      - name: Install doctl
+        uses: digitalocean/action-doctl@v2
+        with:
+          token: ${{ secrets.DIGITALOCEAN_ACCESS_TOKEN }}
+
+      - name: Deploy to DigitalOcean Kubernetes
+        run: |
+          kubectl apply -f kubernetes/api-deployment.yaml --namespace=default
+          kubectl set image deployment/algova-django-api algova-django-api=${{ secrets.DOCKER_REGISTRY }}/algova-django-api:${GITHUB_SHA::7} --namespace=default
+          kubectl rollout status deployment/algova-django-api --namespace=default
+          kubectl wait --for=condition=available --timeout=300s --namespace=default deployment/algova-django-api
+          kubectl get pods -l app=algova-django-api --namespace=default
+          sleep 10 # Wait for previous pod to terminate
+          kubectl exec --namespace=default \
+          $(kubectl get pod -l app=algova-django-api --field-selector=status.phase==Running -o jsonpath="{.items[0].metadata.name}" --namespace=default) \
+          -- python manage.py makemigrations
+          kubectl exec --namespace=default \
+          $(kubectl get pod -l app=algova-django-api --field-selector=status.phase==Running -o jsonpath="{.items[0].metadata.name}" --namespace=default) \
+          -- python manage.py migrate

demo/settings.py

@@ -16,7 +16,7 @@
 # SECURITY WARNING: don't run with debug turned on in production!
 DEBUG = True
 
-ALLOWED_HOSTS = []
+ALLOWED_HOSTS = ["0.0.0.0","127.0.0.1"]
 
 
 # Application definition

docker-conf/Dockerfile-django-api

@@ -0,0 +1,44 @@
+# Build Stage
+FROM python:3.9-slim as builder
+
+ENV PYTHONDONTWRITEBYTECODE=1 \
+    PYTHONUNBUFFERED=1
+
+WORKDIR /build
+
+# Install build dependencies
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    git \
+    build-essential \
+    unixodbc-dev \
+    default-libmysqlclient-dev \
+    && apt-get clean \
+    && rm -rf /var/lib/apt/lists/*
+
+COPY requirements ./requirements
+
+RUN pip install --no-cache-dir --target=/build/deps -r requirements/prod.txt
+
+
+# Final Stage
+FROM python:3.9-slim
+
+ENV PYTHONDONTWRITEBYTECODE=1 \
+    PYTHONUNBUFFERED=1
+
+WORKDIR /home/algova
+
+# Copy installed dependencies from the builder stage
+COPY --from=builder /build/deps /usr/local/lib/python3.9/site-packages
+COPY --from=builder /build/deps/bin /usr/local/bin
+
+COPY . .
+
+# Runtime dependencies
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    unixodbc-dev \
+    default-libmysqlclient-dev \
+    && apt-get clean \
+    && rm -rf /var/lib/apt/lists/*
+
+EXPOSE 8000

kubernetes/api-deployment.yaml

@@ -0,0 +1,26 @@
+kind: Deployment
+apiVersion: apps/v1
+metadata:
+  namespace: default
+  name: algova-django-api
+spec:
+  selector:
+    matchLabels:
+      app: algova-django-api
+  template:
+    metadata:
+      labels:
+        app: algova-django-api
+    spec:
+      containers:
+      - name: algova-django-api
+        image: algova/algova-django-api:latest
+        imagePullPolicy: Always
+        command: ['gunicorn', 'config.wsgi', '--bind=0.0.0.0:8000']
+        resources:
+          requests:
+            memory: "256Mi"
+            cpu: "250m"
+          limits:
+            memory: "512Mi"
+            cpu: "500m"

requirements/prod.txt

@@ -0,0 +1,4 @@
+django==4.2
+django-environ==0.10.0
+djangorestframework==3.14.0
+gunicorn