[Stephen Grider] Docker and Kubernetes: The Complete Guide [ENG, 2018]

Original src: https://github.com/StephenGrider/DockerCasts

[Offtopic]: Deploy application from video course [Stephen Grider] Docker and Kubernetes: The Complete Guide [2018, ENG] on local kubernetes cluster https://github.com/wildmakaka/Docker-and-Kubernetes-The-Complete-Guide-Deploy-on-Local-Kubernetes-Cluster-Only

09 Dockerizing Multiple Services

Stephen forgot to add in docker-compose.yml

worker:
    environment:
      - REDIS_HOST=redis
      - REDIS_PORT=6379

$ cd 09DockerizingMultiple_Services $ docker-compose up --build $ ctrl^C $ docker-compose up

http://localhost:8080/api/values/current

$ docker-compose ps
                   Name                                  Command               State          Ports

09dockerizingmultipleservicesapi_1        npm run dev                      Up
09dockerizingmultipleservicesclient_1     npm run start                    Up
09dockerizingmultipleservicesnginx_1      nginx -g daemon off;             Up      0.0.0.0:8080->80/tcp
09dockerizingmultipleservicespostgres_1   docker-entrypoint.sh postgres    Up      5432/tcp
09dockerizingmultipleservicesredis_1      docker-entrypoint.sh redis ...   Up      6379/tcp

10 A Continuous Integration Workflow for Multiple Images

Travis-ci.org --> OUR Project --> More options --> Settings --> Environment Variables

DOCKER_ID marley DOCKER_PASSWORD mypassword

11 Multi-Container Deployments to AWS

I do not want to pay money for testing AWS.

https://docs.aws.amazon.com/AmazonECS/latest/developerguide/task_definitions.html

Travis-ci.org --> OUR Project --> More options --> Settings --> Environment Variables

AWSACCESSKEY AWSSECRETKEY

12 Onwards to Kubernetes

$ minikube start

$ cd 12Onwardsto_Kubernetes/

$ kubectl apply -f client-pod.yaml $ kubectl apply -f client-node-pod.yaml

$ kubectl get pods NAME READY STATUS RESTARTS AGE client-pod 1/1 Running 0 14s

$ kubectl get services NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE client-node-port NodePort 10.97.14.234 8080:31515/TCP 33s kubernetes ClusterIP 10.96.0.1 443/TCP 32m

$ echo $(minikube service client-node-port --url) http://192.168.99.117:31515

$ kubectl delete -f client-pod.yaml $ kubectl delete -f client-node-pod.yaml

13 Maintaining Sets of Containers with Deployments

$ kubectl apply -f client-node-pod.yaml $ kubectl apply -f client-deployment.yaml $ kubectl get pods $ kubectl get deployments NAME DESIRED CURRENT UP-TO-DATE AVAILABLE AGE client-deployment 1 1 1 1 1m

$ echo $(minikube service client-node-port --url) http://192.168.99.117:31515

$ kubectl get pods -o wide NAME READY STATUS RESTARTS AGE IP NODE client-deployment-588947887b-lkqsc 1/1 Running 0 8m 172.17.0.7 minikube

$ vi client-deployment.yaml

set replicas: 5

$ kubectl apply -f client-deployment.yaml

$ kubectl get deployments NAME READY UP-TO-DATE AVAILABLE AGE client-deployment 5/5 5 5 16m

set replicas back to: 1

Update container:

$ kubectl set image deployment/client-deployment client=marley/multi-client:v5

Reconfiguring Docker CLI

$ minikube docker-env export DOCKERTLSVERIFY="1" export DOCKER_HOST="tcp://192.168.99.117:2376" export DOCKERCERTPATH="/home/marley/.minikube/certs" export DOCKERAPIVERSION="1.35" # Run this command to configure your shell: # eval $(minikube docker-env)

$ eval $(minikube docker-env) $ docker ps

14 A Multi-Container App with Kubernetes

$ minikube stop $ minikube delete $ minikube start

Persitence Volume && Persitence Volume Claims

// we will use default minikube storageclass $ kubectl get storageclass $ kubectl describe storageclass

$ cd 14AMultiContainerAppwithKubernetes

$ kubectl apply -f . $ kubectl get pv $ kubectl get pvc

Environment Variables

Secrets

$ kubectl create secret generic pgpassword --from-literal PGPASSWORD=12345asdf $ kubectl get secrets

Final

$ kubectl apply -f .

15 Handling Traffic with Ingress Controllers

$ minikube addons enable ingress

https://github.com/kubernetes/ingress-nginx

https://kubernetes.github.io/ingress-nginx/deploy/#prerequisite-generic-deployment-command

$ kubectl apply -f https://raw.githubusercontent.com/kubernetes/ingress-nginx/master/deploy/static/mandatory.yaml

https://kubernetes.github.io/ingress-nginx/deploy/#minikube

$ cd 15HandlingTrafficwithIngress_Controllers/

$ kubectl apply -f ingress-service.yaml

$ minikube ip 192.168.99.100

https://192.168.99.100/

$ minikube stop $ minikube delete

16 Kubernetes Production Deployment

I will only watch. Do not want to pay for Google Clouds.

here

17 HTTPS Setup with Kubernetes

here

Marley

Any questions in eng: https://jsdev.org/chat/ Любые вопросы на русском: https://jsdev.ru/chat/