network design

network/demo/.gitignore

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+HELP.md
+target/
+!.mvn/wrapper/maven-wrapper.jar
+!**/src/main/**/target/
+!**/src/test/**/target/
+
+### STS ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+
+### IntelliJ IDEA ###
+.idea
+*.iws
+*.iml
+*.ipr
+
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+build/
+!**/src/main/**/build/
+!**/src/test/**/build/
+
+### VS Code ###
+.vscode/

network/demo/.mvn/wrapper/maven-wrapper.properties

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+distributionUrl=https://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.9.5/apache-maven-3.9.5-bin.zip
+wrapperUrl=https://repo.maven.apache.org/maven2/org/apache/maven/wrapper/maven-wrapper/3.2.0/maven-wrapper-3.2.0.jar

network/demo/Dockerfile

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+FROM openjdk:17
+WORKDIR /usr/src/myapp
+COPY target/demo-0.0.1-SNAPSHOT.jar /usr/src/myapp
+CMD ["java", "-jar", "/usr/src/myapp/demo-0.0.1-SNAPSHOT.jar"]

network/demo/alb.yaml

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+# kubectl apply -f alb.yaml
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: myapp
+spec:
+  selector:
+    matchLabels:
+      app: myapp
+  template:
+    metadata:
+      labels:
+        app: myapp
+    spec:
+      containers:
+        - name: myapp
+          #image: 738612635754.dkr.ecr.ap-northeast-2.amazonaws.com/stecr:latest
+          resources:
+            limits:
+              memory: "128Mi"
+              cpu: "500m"
+          ports:
+            - name: tcp
+              containerPort: 8080
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: myapp
+spec:
+  selector:
+    app: myapp
+  ports:
+    - port: 80
+      targetPort: 8080
+  type: ClusterIP
+---
+apiVersion: networking.k8s.io/v1
+kind: Ingress
+metadata:
+  name: myapp
+  annotations:
+    alb.ingress.kubernetes.io/scheme: internet-facing
+    alb.ingress.kubernetes.io/target-type: ip
+spec:
+  ingressClassName: alb
+  rules:
+    - http:
+        paths:
+          - path: /
+            pathType: Prefix
+            backend:
+              service:
+                name: myapp
+                port:
+                  number: 80

network/demo/ingress.yaml

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+apiVersion: networking.k8s.io/v1
+kind: Ingress
+metadata:
+  namespace: default
+  name: my-ingress
+  annotations:
+    alb.ingress.kubernetes.io/scheme: internet-facing
+    alb.ingress.kubernetes.io/target-type: ip
+spec:
+  ingressClassName: alb
+  rules:
+    - http:
+        paths:
+          - path: /
+            pathType: Prefix
+            backend:
+              service:
+                name: myapp
+                port:
+                  number: 80