ntpc375/craftdemo

Springboot listings service with docker file generation and kubernetes deployment using minikube and kubectl

craftdemo

1. Create a springboot app (spring web, lombok, devtools, jpa, mysql)

   • controller, repository, entity, service, application.properties

2. Mysql create schema

3. application.properties

   server.port=8081

   spring.jpa.hibernate.ddl-auto=update spring.datasource.url=jdbc:mysql://localhost:3306/listings_schema?useSSL=false #spring.datasource.url=jdbc:mysql://34.67.27.190:3306/listings_schema?useSSL=false spring.datasource.username=raki spring.datasource.password=mysql100 spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.MySQL5Dialect ##spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.MySQL5Dialect

   application-docker.properties server.port=8081 spring.jpa.hibernate.ddl-auto=update spring.datasource.url=jdbc:mysql://host.docker.internal:3306/listings_schema?useSSL=false #spring.datasource.url=jdbc:mysql://34.67.27.190:3306/listings_schema?useSSL=false spring.datasource.username=raki spring.datasource.password=mysql100 #spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.MySQL5Dialect spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.MySQL5Dialect

   application-minikube.properties server.port=8081 spring.jpa.hibernate.ddl-auto=update #spring.datasource.url=jdbc:mysql://host.minikube.internal:3306/listings_schema?useSSL=false spring.datasource.url=jdbc:mysql://34.67.27.190:3306/listings_schema?useSSL=false spring.datasource.username=root spring.datasource.password=mysql100 #spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.MySQL5Dialect spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.MySQL5InnoDBDialect

4. Dockerfile FROM adoptopenjdk/openjdk11:alpine-jre ADD target/restapis-0.0.1-SNAPSHOT.jar app.jar ENV PROFILE=docker ENTRYPOINT ["java","-jar", "app.jar", "--spring.profiles.active=${PROFILE}"] #ENTRYPOINT ["java","-jar", "app.jar"]

5. Build docker file docker build -t restapis:1.0 .

6. Run docker file docker run -p 8081:8081 -it restapis:2.0 --env PROFILE=docker

7. Create deployment.yml

   kind: Service apiVersion: v1 metadata: name: rambo labels: name: rambo spec: ports: - nodePort: 30002 port: 8081 targetPort: 8081 protocol: TCP selector: app: rambo type: NodePort

   ---

   apiVersion: apps/v1 kind: Deployment metadata: name: rambo spec: selector: matchLabels: app: rambo replicas: 3 template: metadata: labels: app: rambo spec: containers: - name: rambo image: rambo:3.0 env: - name: PROFILE value: minikube ports: - containerPort: 8081 hostAliases: - ip: 192.168.64.1 hostnames: - host.minikube.internal

8. Run docker in minikube kubernetes docker run -p 8080:8080 -it --env PROFILE=minikube rambo:2.0

   • eval $(minikube docker-env)
   • mvn clean install
   • docker build -t restapis:1.0 .

   kubectl apply -f deployment.yml kubectl get pods kubectl get cluster-info kubectl get deployments

   docker run -p 9999:9999 -it --env PROFILE=minikube localboot:1.0