Add yamls of homework

homework/ymh-webapp/backend-Dockerfile

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+FROM python:3.10
+
+WORKDIR /app
+
+COPY . /app
+
+RUN pip3 install --no-cache-dir --upgrade -r requirements.txt
+EXPOSE 8000
+
+ENV DATABASE_URL="postgresql://postgres:postgresmaster@ymh-postgresql-0/test"
+
+CMD ["sh", "-c", "cd backend && uvicorn main:app --proxy-headers --host 0.0.0.0 --port 8000"]
+

homework/ymh-webapp/backend-deployment.yaml

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+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: ymh-backend
+  namespace: ymh-webapp
+spec:
+  replicas: 1
+  template:
+    metadata:
+      labels:
+        app: ymh-backend
+    spec:
+      initContainers:
+        - name: ymh-initcontainer
+          image: ymh636/ymh-backend
+          command: ['sh', '-c', 'alembic upgrade head && python3 addUser.py']
+      containers:
+        - name: ymh-backend
+          image: ymh636/ymh-backend
+          ports:
+            - containerPort: 8000
+  selector:
+    matchLabels:
+      app: ymh-backend
+

homework/ymh-webapp/backend-service.yaml

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+apiVersion: v1
+kind: Service
+metadata:
+   name: ymh-backend
+   namespace: ymh-webapp
+spec:
+   selector:
+     app: ymh-backend
+   type:  NodePort
+   ports:
+     - protocol: TCP
+       port: 8000
+       targetPort: 8000
+       nodePort: 31426
+

homework/ymh-webapp/frontend-Dockerfile

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+FROM node:14
+
+WORKDIR /app
+
+COPY . /app
+
+RUN npm install 
+RUN npm install -D tailwindcss
+
+
+EXPOSE 3000
+
+CMD ["npm", "run", "start"]

homework/ymh-webapp/frontend-deployment.yaml

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+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: ymh-frontend
+  namespace: ymh-webapp
+spec:
+  replicas: 1
+  template:
+    metadata:
+      labels:
+        app: ymh-frontend
+    spec:
+      containers:
+        - name: ymh-frontend
+          image: ymh636/ymh-frontend
+          ports:
+            - containerPort: 3000
+  selector:
+    matchLabels:
+      app: ymh-frontend

homework/ymh-webapp/frontend-service.yaml

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+apiVersion: v1
+kind: Service
+metadata:
+   name: ymh-frontend
+   namespace: ymh-webapp
+spec:
+   selector:
+     app: ymh-frontend
+   type: NodePort
+   ports:
+     - protocol: TCP
+       port: 3000
+       targetPort: 3000
+       nodePort: 31425

homework/ymh-webapp/helm.md

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+## Helm 裝 Postgres 我的作法
+
+1. 在本地端裝postgres
+
+    ```Shell
+    helm install ymh-postgresql-0 bitnami/postgresql --namespace ymh-webapp --set global.postgresql.auth.postgresPassword=postgresmaster --set global.postgresql.auth.password=postgresmaster --set global.postgresql.auth.username=postgres --set global.postgresql.auth.database=test
+    ```
+
+    下面這兩個指令是要試連用的
+    ```Shell
+    export POSTGRES_PASSWORD=$(kubectl get secret --namespace ymh-webapp ymh-postgres-postgresql -o jsonpath="{.data.postgres-password}" | base64 -d)
+    ```
+
+    ```Shell
+    kubectl run ymh-postgres-postgresql-client --rm --tty -i --restart='Never' --namespace ymh-webapp --image docker.io/bitnami/postgresql:16.1.0-debian-11-r9 --env="PGPASSWORD=$POSTGRES_PASSWORD" \
+      --command -- psql --host ymh-postgres-postgresql -U postgres -d test -p 5432
+    ```
+
+2. 把本地端的檔案導出
+
+    ```Shell
+    helm get values <release-name> > values.yaml
+    ```
+
+3. 確認檔案是對的、並且接上遠端的kubeconfig，然後刪除本地端的
+
+    ```Shell
+    export KUBECONFIG=/Users/huangyoumei/poetry-demo/kubeconfig.yaml
+    helm uninstall <release-name>
+    ```
+4. 部署到遠端
+
+    ```Shell
+    helm install <release-name> -f values.yaml <chart-name>
+    ```
+
+