# CI/CD Integration Up until now, we have run our test files locally. Now, we want to integrate them in a CI/CD pipeline (like [GitHub Actions] or [GitLab CI/CD pipelines]). As Hurl is very fast, we're going to run our tests on each commit of our project, drastically improving the project quality. A typical web project pipeline is: - build the application, run unit tests and static code analysis, - publish the application image to a Docker registry, - pull the application image and run integration tests. In this workflow, we're testing the same image that will be used and deployed in production. > For the tutorial, we are skipping build and publication phases and > only run integration tests on a prebuilt Docker image. To check a complete > project with build, Docker upload/publish and integration tests, go to In a first step, we're going to write a bash script that will pull our Docker image, launch it and run Hurl tests against it. Once we have checked that this script runs locally, we'll see how to run it automatically in a CI/CD pipeline. ## Integration Script 1. First, create a directory name `quiz-project`, add [`integration/basic.hurl`] and [`integration/create-quiz.hurl`] from the previous tutorial to the directory. 
$ mkdir quiz-project
$ cd quiz-project
$ mkdir integration
$ vi integration/basic.hurl

# Import basic.hurl here!

$ vi integration/create-quiz.hurl

# Import create-quiz.hurl here!
Next, we are going to write the first version of our integration script that will just pull the Quiz image and run it: 2. Create a script named `bin/integration.sh` with the following content: ```bash #!/bin/bash set -eu echo "Starting Quiz container" docker run --name quiz --rm --detach --publish 8080:8080 ghcr.io/jcamiel/quiz:latest ``` 3. Make the script executable and run it: ```shell $ chmod u+x bin/integration.sh $ bin/integration.sh Starting Quiz container 5d311561828d6078e84eb4b8b87dfd5d67bde6d9614ad83860b60cf310438d2a ``` 4. Verify that our container is up and running, and stop it. ```shell $ docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES c685f3887cc1 ghcr.io/jcamiel/quiz:latest "java -jar app/quiz.…" 3 seconds ago Up 3 seconds 0.0.0.0:8080->8080/tcp, :::8080->8080/tcp quiz $ docker stop quiz quiz ``` Now, we have a basic script that starts our container. Before adding our integration tests, we need to ensure that our application server is ready: the container has started, but the application server can take a few seconds to be really ready to accept incoming HTTP requests. To do so, we can test our health API. With a function `wait_for_url`, we use Hurl to check a given url to return a `200 OK`. We loop on this function until the check succeeds. Once the test has succeeded, we stop the container. 5. Modify `bin/integration.sh` to wait for the application to be ready: ```bash #!/bin/bash set -eu wait_for_url () { echo "Testing $1" max_in_s=$2 delay_in_s=1 total_in_s=0 while [ $total_in_s -le "$max_in_s" ] do echo "Wait ${total_in_s}s" if (echo -e "GET $1\nHTTP/* 200" | hurl > /dev/null 2>&1;) then return 0 fi total_in_s=$(( total_in_s + delay_in_s)) sleep $delay_in_s done return 1 } echo "Starting Quiz container" docker run --name quiz --rm --detach --publish 8080:8080 ghcr.io/jcamiel/quiz:latest echo "Starting Quiz instance to be ready" wait_for_url 'http://localhost:8080' 60 echo "Stopping Quiz instance" docker stop quiz ``` We have now the simplest integration test script: it pulls a Quiz image, then starts the container and waits for a `200 OK` response. Next, we're going to add our Hurl tests to the script. 6. Modify `bin/integration.sh` to add integration tests: ```bash #!/bin/bash set -eu # ... echo "Starting Quiz container" # ... echo "Starting Quiz instance to be ready" # ... echo "Running Hurl tests" hurl --test integration/*.hurl echo "Stopping Quiz instance" # ... ``` 7. Run [`bin/integration.sh`] to check that our application passes all tests: ```shell $ bin/integration.sh Starting Quiz container 48cf21d193a01651fc42b80648abdb51dc626f31c3f9c8917aea899c68eb4a12 Starting Quiz instance to be ready Testing http://localhost:8080 Wait 0s Wait 1s Wait 2s Wait 3s Wait 4s Wait 5s Running Hurl tests integration/basic.hurl: Running [1/2] integration/basic.hurl: Success (4 request(s) in 18 ms) integration/create-quiz.hurl: Running [2/2] integration/create-quiz.hurl: Success (6 request(s) in 18 ms) -------------------------------------------------------------------------------- Executed files: 2 Succeeded files: 2 (100.0%) Failed files: 0 (0.0%) Duration: 48 ms Stopping Quiz instance quiz ``` Locally, our test suite is now fully functional. As Hurl is very fast, we can use it to ensure that new developments don't have regression. Our next step is to run the integration tests automatically in a CI/CD pipeline. As an example, we're going to create a [GitHub Action]. ## Running Tests with GitHub Action 1. Create a new empty repository in GitHub, named `quiz-project`:

Create new GitHub repository Create new GitHub repository

2. On your computer, create a git repo in `quiz-project` directory and commit the projects files: ```shell $ git init Initialized empty Git repository in /Users/jc/Documents/Dev/quiz-project/.git/ $ git add . $ git commit -m "Add integration tests." [master (root-commit) ea3e5cd] Add integration tests. 3 files changed, 146 insertions(+) create mode 100755 bin/integration.sh ... $ git branch -M main $ git remote add origin https://github.com/jcamiel/quiz-project.git $ git push -u origin main Enumerating objects: 7, done. Counting objects: 100% (7/7), done. ... ``` Next, we are going to add a GitHub Action to our repo. The purpose of this action will be to launch our integration script on each commit. 3. Create a file in `.github/workflows/ci.yml`: ```yaml name: CI on: push: branches: - main jobs: build: runs-on: ubuntu-latest permissions: contents: read steps: - name: Checkout uses: actions/checkout@v2 - name: Build run: echo "Building app..." - name: Integration test run: | curl -LO https://github.com/Orange-OpenSource/hurl/releases/download/1.4.0/hurl_1.4.0_amd64.deb sudo dpkg -i hurl_1.4.0_amd64.deb bin/integration.sh ``` 4. Commit and push the new action: ```shell $ git add .github/workflows/ci.yml $ git commit -m "Add GitHub action." [main 077d754] Add GitHub action. 1 file changed, 19 insertions(+) ... $ git push Enumerating objects: 6, done. Counting objects: 100% (6/6), done. ... ``` Finally, you can check on GitHub that our action is running:

GitHub Action GitHub Action

## Tests Report TBD ## Recap In less than half an hour, we have added a full CI/CD pipeline to our project. Now, we can add more Hurl tests and start developing new features with confidence! [`integration/basic.hurl`]: https://raw.githubusercontent.com/jcamiel/quiz/master/integration/basic.hurl [`integration/create-quiz.hurl`]: https://raw.githubusercontent.com/jcamiel/quiz/master/integration/create-quiz.hurl [GitHub Actions]: https://github.com/features/actions [GitHub Action]: https://github.com/features/actions [GitLab CI/CD pipelines]: https://docs.gitlab.com/ee/ci/pipelines/ [`bin/integration.sh`]: https://github.com/jcamiel/quiz/blob/master/bin/integration.sh