This project contains a working skeleton and infrastructure for a 1-week simulation of real-life software development for college students - "Summer camp". Participants will contribute to this repo when developing the product. The project contains a GitLab CI/CD pipeline that automates builds, unit tests, end-to-end tests, and deployment to a production server kancl.online.
The project uses Maven to build a Java server, H2 database embedded into the server, Cypress framework for end-to-end tests, and Docker for easy deployment.
To use the application on your local computer, the app doesn't need any external program. The database
is also embedded into it. To run the application, use working directory as the root directory of the project
and then just run method main in class Main from within your IDE. Without an IDE, you can build the app
with mvn package and run it java -jar target/server-1.0-SNAPSHOT.jar. The running app is available
at localhost:8081.
In production, there is also an HTTP server running alongside our Java app - Caddy. Caddy translates HTTP traffic to and from our app into HTTPS (it acts like a reverse proxy). In production, our Java app and Caddy are configured to run inside Docker containers.
To support excellent quality of the application, we expect at least two different categories of tests to be created and maintained as the application is developed - unit tests and end-to-end tests.
Unit tests are written in Java and can be executed in the IDE or by running mvn test.
You can find them in directory src/test/java.
End-to-end tests exercise the application as a whole in its Docker containers. We have prepared
Cypress testing framework for you. Cypress tests are written in
JavaScript or TypeScript and you can find them in directory src/test/cypress.
There are two ways that you can execute them.
The first way is to run end-to-end tests in the terminal by running mvn integration-test. You can
also invoke Maven phase integration-test from your IDE (sometimes it is also called verify).
You can inspect test failures by investigating the log, looking at screenshots and videos that capture
what the test saw. You can find them in directories src/test/cypress/screenshots and src/test/cypress/videos.
The second option is to work in Cypress UI, which will give you a faster feedback loop and
more interactive way to investigate test failures. To install Cypress run npm install && npx cypress install.
Make sure the app is running and run:
npx cypress openThis will open Cypress UI. Wait a bit, click on E2E Testing, choose a browser and a test 'Spec'. The test will be executed within the selected browser, you can replay individual steps and inspect failures. The test is executed again whenever the source file changes.
To make tests useful, you need to run them often. And the best way to do that is to automate it. We have prepared a place that does just that - CI/CD pipeline in GitLab. After you push to GitLab repository, the following steps are done:
- Stage
buildexecutes Maven which builds Java, runs unit tests and creates.jarfile. - Stage
end-to-end-testsstarts a container, runs our Java app and Caddy and executes Cypress tests. - If you push to branch
mainthere's also stagedeploy. This stages updates production server kancl.online.
The CI/CD pipeline is configured in file .gitlab-ci.yml.
We have prepared H2 Database. H2 is a native to Java and can run "embedded" into another Java program (as opposed to running it in "server" mode as a standalone process).
There are no production users of our application (yet? :-) so we can afford to occasionally throw away all data in the
DB
and re-create it from scratch. This is done by set of scripts in directory src/main/resources/sql. Use these scripts
to create DB schema for your application. Scripts need to have extension .sql and are executed in alphabetical order.
When you start the application a class SchemaCreator within the container will throw away the DB
and re-create it every time content of directory src/main/resources/sql is changed.
The DB content is stored in directory db. You can use your IDE or other database tools to inspect the content of the
DB,
but please note only a single process can access the DB at any time. This means you will not be able to connect your
when our Java app is running and vice versa.
Here is the app that I tried out: https://marketplace.zoom.us/develop/apps/xGNy_ZHYT2alQ98bgjfrGQ/information
[
{
"event": "meeting.started",
"payload": {
"account_id": "PX5yQAcnT5azdXF5ma2Apw",
"object": {
"duration": 0,
"start_time": "2022-03-23T12:33:26Z",
"timezone": "",
"topic": "Jan Šimonek's Zoom Meeting",
"id": "86431910364",
"type": 1,
"uuid": "hwkAADUySwyG3GyUkqc0vA==",
"host_id": "tUo7WohjTs6ELvl9WR3JAA"
}
},
"event_ts": 1648038806658
},
{
"payload": {
"account_id": "PX5yQAcnT5azdXF5ma2Apw",
"object": {
"uuid": "hwkAADUySwyG3GyUkqc0vA==",
"participant": {
"user_id": "16778240",
"user_name": "Jan Šimonek",
"registrant_id": null,
"participant_user_id": "tUo7WohjTs6ELvl9WR3JAA",
"id": "tUo7WohjTs6ELvl9WR3JAA",
"join_time": "2022-03-23T12:33:26Z",
"email": "jan.simonek@gmail.com"
},
"id": "86431910364",
"type": 1,
"topic": "Jan Šimonek's Zoom Meeting",
"host_id": "tUo7WohjTs6ELvl9WR3JAA",
"duration": 0,
"start_time": "2022-03-23T12:33:26Z",
"timezone": ""
}
},
"event_ts": 1648038809439,
"event": "meeting.participant_joined"
},
{
"event": "meeting.ended",
"payload": {
"account_id": "PX5yQAcnT5azdXF5ma2Apw",
"object": {
"duration": 0,
"start_time": "2022-03-23T12:33:26Z",
"timezone": "",
"end_time": "2022-03-23T12:33:39Z",
"topic": "Jan Šimonek's Zoom Meeting",
"id": "86431910364",
"type": 1,
"uuid": "hwkAADUySwyG3GyUkqc0vA==",
"host_id": "tUo7WohjTs6ELvl9WR3JAA"
}
},
"event_ts": 1648038819111
},
{
"payload": {
"account_id": "PX5yQAcnT5azdXF5ma2Apw",
"object": {
"uuid": "hwkAADUySwyG3GyUkqc0vA==",
"participant": {
"leave_time": "2022-03-23T12:33:39Z",
"user_id": "16778240",
"user_name": "Jan Šimonek",
"registrant_id": "",
"participant_user_id": "tUo7WohjTs6ELvl9WR3JAA",
"id": "tUo7WohjTs6ELvl9WR3JAA",
"leave_reason": "left the meeting. Reason : Host ended the meeting.",
"email": "jan.simonek@gmail.com"
},
"id": "86431910364",
"type": 1,
"topic": "Jan Šimonek's Zoom Meeting",
"host_id": "tUo7WohjTs6ELvl9WR3JAA",
"duration": 0,
"start_time": "2022-03-23T12:33:26Z",
"timezone": ""
}
},
"event_ts": 1648038821536,
"event": "meeting.participant_left"
}
]Follow installation instructions for Docker. Enable Docker daemon and install docker-compose:
sudo systemctl enable docker
sudo systemctl start docker
sudo apt-get install docker-composeAdd the following to /etc/environment
DOMAIN=kancl.online
Run sudo visudo /etc/sudoers.d/preserve_server_env_variables
Add the following content. This will preserve the env variables
when running sudo.
Defaults env_keep += "DOMAIN"
Generate private+public key locally using:
ssh-keygen -t rsa -b 4096 -C "your_email@example.com"sudo mkdir -p /opt/kancl.online
sudo adduser deployer --disabled-password
sudo su - deployer
mkdir .ssh
chmod 700 .ssh
touch .ssh/authorized_keys
chmod 600 .ssh/authorized_keys
# put the generated public key to .ssh/authorized_keys
exit
sudo chown deployer:deployer /opt/kancl.online
sudo usermod -aG docker deployer
# Install rsync
sudo apt-get install rsync
# Create persistent volume for Caddy data
sudo docker volume create --name=caddy_dataUpload the private key to GitLab > Repository Settings > CI/CD > Variables with name SSH_PRIVATE_KEY.
- Missing
Router. URLs everywhere - Form validation
- Misuse of
var - Bloated cypress testrig