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Build Status Heroku

devops-tutorial project

Author: Guillaume Boutry

Link to Jenkins Instance

[https://jenkins.zouzland.com/blue/organizations/jenkins/devops-project-api/branches/] <-- from this page you can create a new release. Check tag build and set a tag version like 0.3.0 and it will be built and deployed on heroku.

You can snoop around in the Jenkinsfile to see the all the pipeline steps.

Jenkins instance hosted on my server, same for my docker registry.

Your credentials are:

login: adaltas

password: adaltas

Running the application in dev mode

You can run your application in dev mode that enables live coding using:

./mvnw quarkus:dev

Packaging and running the application

The application is packageable using ./mvnw package. This command will also run Unit Test. You need DOCKER for unit tests to work.

It produces the executable devops-tutorial-0.3.0-SNAPSHOT-runner.jar file in /target directory.

Be aware that it’s not an über-jar as the dependencies are copied into the target/lib directory.

The application is now runnable using java -jar target/devops-tutorial-1.0-SNAPSHOT-runner.jar.

Creating a native executable

You can create a native executable using: ./mvnw package -Pnative.

Or you can use Docker to build the native executable using: ./mvnw package -Pnative.

You can then execute your binary: ./target/devops-tutorial-0.3.0-SNAPSHOT-runner

If you want to learn more about building native executables, please consult https://quarkus.io/guides/building-native-image-guide .

Native built with docker image quay.io/quarkus/centos-quarkus-maven:20.0.0-java11

Building docker image

To build the jvm docker image run this command from the project root: docker build -f src/main/docker/Dockerfile.jvm -t registry.zouzland.com/boutry/devops-tutorial-jvm:latest .

You can override any configuration with environment variables, but you can also mount a yaml file to /work/config/application.yaml.

Exemple of a yaml file in src/main/resources/application.yaml.

You need to flatten the variables like this quarkus.datasource.url.

To build this image, you need to connect to my private registry.

docker login registry.zouzland.com

login: adaltas

password: adaltas

I repackaged the a build image from Red Hat, that's why you need to login to my registry.

To build the native docker image run this command from the project root:

docker build -f src/main/docker/Dockerfile.native -t registry.zouzland.com/boutry/devops-tutorial-native:latest .

The native build should last around 6 minutes, it compiles java bytecode to native code.

In the registry, tags meaning:

  • 0.3.0 -- version number
  • latest -> points to the latest release. Right now it's 0.3.0
  • snapshot -> latest build from jenkins

Release version can only be built from manual execution from Jenkins.

Docker-compose

Run docker-compose up and you will be served.

Connect to http://127.0.0.1:8080/api/user

You can connect to http://127.0.0.1:8080/swagger-ui/ to play around with the API.

(To create a cat, you just need to give the owner id and cat name, no need to give all informations about ower.)

Warning: In the following section, I used minikube start --driver=docker. It's only available on Linux and Mac. Because of that the way to access the gateway is a bit differente. I can't use the minikube IP, but I can use the external IP of the ingress gateway.

K8S

Create a registry secret containing the credentials to the registry.

kubectl create secret docker-registry regcred --docker-server=registry.zouzland.com --docker-username=adaltas --docker-password=adaltas [email protected]

Just apply every yamls in k8s folder.

Postgres-volume and configmap should be applied first.

Istio

Don't forget to remove all k8s yamls from the step before

Create a registry secret containing the crendentials to the registry.

kubectl create secret docker-registry regcred --docker-server=registry.zouzland.com --docker-username=adaltas --docker-password=adaltas [email protected]

Just apply every yamls from istio folder.

Postgres-volume and configmap sould be applied first.

You don't need minikube tunnel to access the cluster if you run minikube with minikube start --driver=docker

On a terminal:

export INGRESS_HOST=$(kubectl -n istio-system get service istio-ingressgateway -o jsonpath='{.status.loadBalancer.ingress[0].ip}')
echo Click on http://$INGRESS_HOST/user/api

Ansible

Run vagrant up from ansible folder.

It will install every package you need and run docker-compose for you.

Connect to http://30.30.30.3:8080/api/user