-
List all modules under maven project
$ mvn help:evaluate -Dexpression=project.modules
-
Build and create docker images for all modules from parent
$ mvn clean package spring-boot:build-image
-
Execute maven goal on specific module from parent
$ mvn clean spring-boot:run -pl service-a
$ mvn clean package spring-boot:build-image -pl service-a
-
List all projects under gradle project
$ gradle -q projects
-
Build and create docker images for all project from parent
$ gradle clean build bootBuildImage
-
Execute gradle task on specific project from parent
$ gradle clean :service-a:bootRun
$ gradle clean :service-a:build :service-a:bootBuildImage
$ curl http://localhost:8081/greeting
$ curl http://localhost:8082/greeting
$ curl http://localhost:8083/greeting
-
List Docker images
$ docker images | grep spring-multi-module
-
Run a docker image
$ docker run -d -p 8081:8080 -e spring.profiles.active=prod -e serviceb.url=http://<HOST_IP>:8082 -e servicec.url=http://<HOST_IP>:8083 narramadan/spring-multi-module-service-service-a
$ docker run -d -p 8082:8080 -e spring.profiles.active=prod narramadan/spring-multi-module-service-service-b
$ docker run -d -p 8083:8080 -e spring.profiles.active=prod narramadan/spring-multi-module-service-service-c
-
List containers currently running
$ docker ps
-
Stop running container
$ docker stop <CONTAINER_ID>
-
List all containers that are running or stopped
$ docker ps -a
-
Start a container which is not running ````$ docker start <CONTAINER_ID>```
-
Delete docker container
$ docker rm <CONTAINER_ID>
-
Delete docker image
$ docker rmi <IMAGE_ID>
-
One liner to stop all running containers
$ docker stop $(docker ps -a -q)
-
One liner to remove all stopped containers
$ docker rm $(docker ps -a -q)
-
Validate docker-compose file and configuration
$ docker-compose config
-
Builds, (re)creates, starts, and attaches to containers for a service.
$ docker-compose up -d
-
Lists containers
$ docker-compose ps
-
Stops running containers without removing them
$ docker-compose stop
-
Starts existing containers for a service
$ docker-compose start
-
Stops containers and removes containers, networks, volumes, and images created by
up
$ docker-compose down
-
Login to Docker
$ docker login
-
Tag docker image before pushing to docker hub if image name is not tagged with docker hub username
$ docker tab <IMAGE_ID> <Docker_Username>/<IMAGE_NAME>
$ docker tag ffc5ec760103 narramadan/springboot-servicea
- Push to docker hub
$ docker push <Docker_Username>/<IMAGE_NAME>
$ docker push narramadan/spring-multi-module-service-service-a
$ kubectl cluster-info
$ kubectl explain deployment
$ kubectl explain deployment.spec.replicas
$ kubectl explain service
- Apply deployments & services
- Order of creation is important. Services should be created before they are to be expanded
$ kubectl apply -f k8s
-
List deployments, services & pods after applying the change
$ kubectl get all
-
Watch pods by getting all pods or for a specific app
$ kubectl get pods --watch
$ kubectl get pods -l app=springboot-service-a --watch
-
Scale deployment up/down by setting replicas
$ kubectl scale --replicas=2 deployment/springboot-service-a
-
Get Environment Variables set to the pod
$ kubectl exec <POD_NAME> -- printenv | grep SERVICE
-
Dump pod logs
$ kubectl logs <POD_NAME>
$ kubectl logs -f <POD_NAME>
- Delete pods and services
$ kubectl delete -f k8s
-
Verify if port is established to a process
$ netstat -na | find "8081"
-
Only one LoadBalancer with Docker Desktop - https://stackoverflow.com/questions/59412733/kubernetes-docker-desktop-with-multiple-loadbalancer-services
-
K8s desktop - https://collabnix.com/kubernetes-dashboard-on-docker-desktop-for-windows-2-0-0-3-in-2-minutes/