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GCP Project Operator

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GCP Project Operator


GCP Project Operator is an open source project responsible for creating and destroying projects and service accounts in GCP. It stores the credentials in a secret, so other Kubernetes applications (operators) can use them and interact with GCP to create cloud resources or any other underlying infrastructure (such as storage or virtual machines).

GCP Project Operator is one of the operators used for provisioning OpenShift Dedicated clusters on Google Cloud Platform managed by Red Hat Site-Reliability Engineers.

You can get a quick overview of what's happening inside the Operator by watching this video.

If you like to contribute to GCP Project Operator, please be so kind to read our Contribution Policy first.


Info

Documentation

For Users

  • Google GCP configuration -- The Operator expects a ConfigMap and a Secret to be already present in the cluster before you use it.
  • How to use it -- Tell the Operator to create or delete a new GCP Project for you.
  • Debugging -- Useful tips and commands.
  • API -- Options you can fine-tune for ProjectClaim.

For Developers

  • Design -- Describes the interaction between the custom resource definitions.
  • Building -- Instructions for building the project.
  • Development -- Instructions for developers who want to contribute.
  • Testing -- Instructions for writing tests.
  • Troubleshooting -- Common errors and pitfalls.
  • Code Analysis -- A high-level analysis of the code to get yourself familiar with the codebase.

Workflow - ProjectClaim

  1. The operator watches all namespaces for ProjectClaim resources.
  2. When a ProjectClaim is found (see example below) the operator triggers the creation of a project in GCP.
  3. After successful project creation:
    • The field State will be set to Ready.
    • A secret is created in the cluster namespace, as defined in the ProjectClaim.
    • The field spec.gcpProjectID will be filled with the ID of the GCP project.
    • A list of available zones in the input region is set in spec.availabilityZones.
  4. When a ProjectClaim is removed, the secret, the GCP project and its ServiceAccounts are deleted.
  5. The operator removes the finalizer from the ProjectClaim.

Example Input Custom Resource

apiVersion: gcp.managed.openshift.io/v1alpha1
kind: ProjectClaim
metadata:
  name: example-projectclaim
  namespace: example-clusternamespace
spec:
  region: us-east1
  gcpCredentialSecret:
    name: gcp-secret
    namespace: example-clusternamespace
  legalEntity:
    name: example-legal-entity
    id: example-legal-entity-id

Deployment

Building

Just run make.

Local Dev

Prerequisites

  • Typically you'll want to use CRC, though it's fine if you're running OpenShift another way.
  • You need to have the operator-sdk binary in your $PATH.

Start operator locally

oc new-project gcp-project-operator
oc apply -f deploy/crds/gcp.managed.openshift.io_projectclaims.yaml
oc apply -f deploy/crds/gcp.managed.openshift.io_projectreferences.yaml

operator-sdk up local --namespace gcp-project-operator

NOTE: The above command works with operator-sdk v0.11.0. If it fails to run, try using one of the older commands:

operator-sdk run --local --namespace gcp-project-operator
operator-sdk run local --watch-namespace gcp-project-operator

If everything went ok, you should see some startup logs from the operator in your terminal window.

There are example CRs in deploy/crds/ you might want to use to see how the operator reacts to their presence (and absence if you delete them).

Running tests

You can run the tests using make gotest or go test ./...

Configuration

For the operator to interact with GCP properly, it needs a bit of configuration first.

Note: unless you're running this against your very own GCP org, someone likely already has this stuff prepared for you. Ask around.

Auth Secret

  1. Create a gcp service account with appropriate permissions to an empty folder ("(Project) Owner" and "Project Creator" should suffice).
  2. Generate keys for the service account and download them.
  3. Run oc create -n gcp-project-operator secret generic gcp-project-operator-credentials --from-file=key.json=YOUR-KEYS-FILE-NAME.json

Configmap

The controller expects to find a ConfigMap with the name gcp-project-operator inside the gcp-project-operator namespace.

For how to create a ConfigMap, please refer to the doc.

About

Operator responsible for managing GCP projects and credentials.

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