commit => #GitHub => #CircleCI => #Docker =>

#Kubernetes #AWS cluster6. sraz přátel Symfony v Praze

31.3.2016

continuous integration … deployment

… delivery

Kouzelná Almara

1 Java aplikace v Tomcatu (RESTful API + Wicket UI)

Tomcat…?

hot deploy 🤘 PermGen 💩

fuck it! 🐙

#BitBucket => #Bamboo => SSH upload WARka => jetty-runner.jar + automatický reload

po uploadu nového WARu (Node.JS skript)

Skrz

3 frontend PHP(-FPM) aplikace, 2 3 ReactPHP aplikace, ~30 RabbitMQ consumers,

1 Go aplikace

SVN 👹

fuck it! 🐙

#BitBucket => BB hook => checkout git do ~/commits/<commit> => hook.sh => (na stagingu automaticky) swap.sh

hitserver, adserver, ranking, RabbitMQ consumers

supervisord 🤘 porty 💩

hitserver, adserver, ranking, RabbitMQ consumers

supervisord 💩 porty 💩

Liftago

7 Java aplikací, 2 Node.JS aplikace, Python skripty v crontabu

💩 Jelastic 💩 💩 Dogado 💩

fuck! fuck fuck! 🐙

❓ Java/PHP/Go/Node/… ❓ Java 7 vs. 8, PHP 5.3 vs. 7.0, … ❓ supervisor/autorestart ❓ rolling deployment ❓ porty ❓ nezávislé na hostingu

❓ Java/PHP/Go/Node/… ✅ Docker ❓ Java 7 vs. 8, PHP 5.3 vs. 7.0, … ✅ Docker ❓ supervisor/autorestart ✅ Kubernetes ❓ rolling deployment ✅ Kubernetes ❓ porty ✅ Kubernetes ❓ nezávislé na providerovi ✅ Kubernetes

Kubernetes

Pods

Docker container

billing:2016-03-31.345

Label app=billing

Label env=prod

Docker container

logrotate:latest

Volume

/var/lib/invoices

Volume

/var/log

10.0.0.348080

Reconciliation loop

Observed state Desired state

Reconciliation loop

Observed state Desired statecreate

Reconciliation loop

Observed state Desired statescale

Reconciliation loop

Observed state Desired statehealth check

Replication controllerPod

billing 10.0.0.34Replication controller

billing-prod

app=billing env=prod replicas=3

app=billing

env=prod

Pod

billing 10.0.0.35

app=billing

env=prod

Pod

billing 10.0.0.36

app=billing

env=prod

Replication controllerPod

billing 10.0.0.34Replication controller

billing-prod

app=billing env=prod

replicas=1

app=billing

env=prod

Service

Pod

billing 10.0.0.34

Replication controller

billing-prod

app=billing

env=prodPod

billing 10.0.0.35

app=billing

env=prod

Pod

api 10.0.0.14

app=api

env=prod

??? ???

Service

Pod

billing 10.0.0.34

Replication controller

billing-prod

app=billing

env=prod

Pod

api 10.0.0.14

app=api

env=prod

??? !!!

Service

Pod

billing 10.0.0.34

Replication controller

billing-prod

app=billing

env=prodPod

billing 10.0.0.35

app=billing

env=prod

Pod

api 10.0.0.14

app=api

env=prod

Service billing-prod 10.1.0.1

Service

Pod

billing 10.0.0.34

Replication controller

billing-prod

app=billing

env=prod

Pod

api 10.0.0.14

app=api

env=prod

Service billing-prod 10.1.0.1

Service

Replication controller

billing-prod

Pod

billing 10.0.0.66

app=billing

env=prod

Pod

api 10.0.0.14

app=api

env=prod

Service billing-prod 10.1.0.1

…a více• Job (cron scheduler plánovaný na 1.3)

• DaemonSet

• Horizontal Pod Autoscaler

• Secret

• Ingress

$ kubectl create -f - <<EOF > apiVersion: v1 > kind: ReplicationController > metadata: > name: billing-prod > spec: > replicas: 3 > template: > metadata: > labels: > app: billing > env: prod > spec: > containers: > - name: billing > image: docker-registry.liftago.com/billing:latest > imagePullPolicy: Always …

… > env: > - name: SPRING_PROFILES_ACTIVE > value: prod > ports: > - containerPort: 8080 > livenessProbe: > httpGet: > path: /health > port: 8080 > initialDelaySeconds: 60 > timeoutSeconds: 5 > readinessProbe: > httpGet: > path: /health > port: 8080 > initialDelaySeconds: 1 > timeoutSeconds: 1 > imagePullSecrets: > - name: docker-repository.liftago.com > EOF

$ kubectl create -f <<EOF > apiVersion: v1 > kind: Service > metadata: > name: billing-prod > labels: > app: billing > env: prod > spec: > clusterIP: 10.1.0.1 > ports: > - port: 80 > targetPort: 8080 > protocol: TCP > selector: > app: billing > env: prod > EOF

$ kubectl get po -l app=billing,env=prod NAME READY STATUS RESTARTS AGE billing-prod-e3jcm 1/1 Running 0 1m billing-prod-4sdfb 1/1 Running 0 1m billing-prod-sd134 1/1 Running 0 1m

$ kubectl get rc -l app=billing,env=prod NAME DESIRED CURRENT AGE billing-prod 3 3 1m

$ kubectl get svc -l app=billing,env=prod NAME CLUSTER-IP EXTERNAL-IP PORT(S) AGE billing-prod 10.1.0.1 <none> 80/TCP 1m

$ kubectl exec -it billing-prod-e3jcm bash $ cat /etc/hosts 127.0.0.1 billing-prod-e3jcm …

kubernetes.io

github.com/jakubkulhan/kube-jessie-ansible github.com/jakubkulhan/dockerfiles

A co ty commity/#GitHub/#CircleCI?

🤔

machine: java: version: oraclejdk8 environment: DOCKER_TAG: $(date +%Y-%m-%d).$CIRCLE_BUILD_NUM services: - docker post: - docker login -e $DOCKER_EMAIL -u $DOCKER_USER -p $DOCKER_PASS $DOCKER_REGISTRY

dependencies: post: - sudo wget 'http://storage.googleapis.com/kubernetes-release/release/v1.2.0/bin/linux/amd64/kubectl' -O /usr/local/bin/kubectl - sudo chmod 755 /usr/local/bin/kubectl # docker pull suggested by https://discuss.circleci.com/t/caching-docker-image-with-docker-hub/1784 - docker pull $DOCKER_REGISTRY/$CIRCLE_PROJECT_REPONAME:latest || true

test: …

deployment: kubernetes: branch: master commands: - docker build -t $DOCKER_REGISTRY/$CIRCLE_PROJECT_REPONAME:$DOCKER_TAG . - docker push $DOCKER_REGISTRY/$CIRCLE_PROJECT_REPONAME:$DOCKER_TAG

- docker tag -f $DOCKER_REGISTRY/$CIRCLE_PROJECT_REPONAME:$DOCKER_TAG $DOCKER_REGISTRY/$CIRCLE_PROJECT_REPONAME:latest - docker push $DOCKER_REGISTRY/$CIRCLE_PROJECT_REPONAME:latest

- > kubectl config set-cluster kubernetes --server=$KUBERNETES_MASTER && kubectl config set-credentials circleci --token=$KUBERNETES_TOKEN && kubectl config set-context kubernetes --cluster=kubernetes --user=circleci && kubectl config use-context kubernetes

- kubectl rolling-update billing-prod --image=$DOCKER_REGISTRY/$CIRCLE_PROJECT_REPONAME:$DOCKER_TAG --update-period=10s

Díky!Otázky?

twitter.com/jakubkulhan medium.com/@jakubkulhan

github.com/jakubkulhan