percona-version-service

Percona version service provides an API to share a support matrix for PMM products.

For each product, there are multiple files in the sources directory. Each file contains a list of supported components for a specific version of product.
For example pmm.2.29.0.pmm-server.json contains the list of supported components for PMM Server 2.29.0.

How to add new product version into the list of supported versions

In this example, we'll use PMM Server which uses PSMDB operator.

Add new version of PMM

To add a new version of PMM to the version service you can copy the body of a file for latest version of PMM with a new name.
For example, if we want to add new version of PMM 2.30.0:

1. Create create a new file pmm.2.30.0.pmm-server.json.
2. Copy the body of file pmm.2.29.0.pmm-server.json to the newly created file.
3. Update the version in operator field

Add a new version of PSMDB operator

To add a new version of PSMDB operator to PMM, you should update the existing pmm.*.pmm-server.json file.
For example, if you want to add PSMDB Operator version 1.12.0 to PMM 2.28.0:

1. Add a new child to the psmdbOperator field
2. This child should have the following format:

{
    "image_path": "[docker image name]",
    "image_hash": "[docker image hash]",
    "status": "recommended", // or "available"
    "critical": false // or true
}

3. The values for image_path and image_hash can be obtained from docker hub or by running docker inspect
4. The status can be set to recommended or available

How to add new metadata for a product

Add a file to sources/metadata/{product_name}/{any-identifier}.yaml.
The file supports the following format:

version: 0.6.0
recommended:
  cli: 0.4.0
  k8s: 1.27
supported:
  pg: ^2.1.0
  pxc: 0.0.0 || 1.1.1

recommended and supported are map[string]string.
recommended field holds a specific version. supported hold a semver constraint.

Making a request to /metadata/v1/{product} will return all stored metadata for the given product.

How to create a new docker image

make docker-push will create and push a docker image with your changes.
If you don't want to push your docker image to DockerHub just run make docker-build.

By default, the image name is perconalab/version-service:$(GIT_BRANCH)-$(GIT_COMMIT) but it can be overridden by setting the IMG environment variable.

How to publish your changes

We use Continuous Integration and Continuous Deployment paradigms to have the latest changes on server.
For that we have 2 main branches for 2 different environments.

• Development environment is automatically deployed based on sources in main branch.
• Production environment is automatically deployed based on sources in production branch.

They are independent of each other. Which means that to get your changes on both environments you have to create 2 different branches. Each of them should be based on the branch related to the environment you want to deploy and PRs should be created to the same branch.

e.g.: To publish your changes to the development environment, you should create new branch from main branch and then create a PR to get your changes merged to the main branch.
Once your PR is merged, our CI will automatically publish these changes to corresponding environment.

How to update gRPC API

Add you're new fields to appropriate messages in the api/version.proto file.

In order to compile the proto file and generate all the necessary code, first run make init to ensure all the tooling in installed. After that run make gen in order to generate everything.