1732a8b9bd
Automatic merge from submit-queue (batch tested with PRs 51915, 51294, 51562, 51911) GCE: Gracefully handle permission errors when attempting to create firewall rules Purpose of this PR is to raise events from the GCE cloud provider if the GCE service account does not have the permissions necessary to create/update/delete firewall rules. Fixes #51812 **Release note**: ```release-note NONE ``` Example Events: ``` Events: FirstSeen LastSeen Count From SubObjectPath Type Reason Message --------- -------- ----- ---- ------------- -------- ------ ------- 2m 2m 1 service-controller Normal EnsuringLoadBalancer Ensuring load balancer 2m 2m 1 gce-cloudprovider Normal LoadBalancerManualChange Firewall change required by network admin: `gcloud compute firewall-rules create aa8a1dd628ddb11e78ce042010a80000 --network https://www.googleapis.com/compute/v1/projects/playground/global/networks/e2e-test-nicksardo --description "{\"kubernetes.io/service-name\":\"default/myechosvc1\", \"kubernetes.io/service-ip\":\"\"}" --allow tcp:9000 --source-ranges 0.0.0.0/0 --target-tags e2e-test-nicksardo-minion --project playground` 2m 2m 1 gce-cloudprovider Normal LoadBalancerManualChange Firewall change required by network admin: `gcloud compute firewall-rules create k8s-1aee5045e658d174-node-hc --network https://www.googleapis.com/compute/v1/projects/playground/global/networks/e2e-test-nicksardo --description "" --allow tcp:10256 --source-ranges 130.211.0.0/22,35.191.0.0/16,209.85.152.0/22,209.85.204.0/22 --target-tags e2e-test-nicksardo-minion --project playground` 1m 1m 1 service-controller Normal EnsuredLoadBalancer Ensured load balancer ```
Deprecation Notice: This directory has entered maintenance mode and will not be accepting new providers. Cloud Providers in this directory will continue to be actively developed or maintained and supported at their current level of support as a longer-term solution evolves.
Overview:
The mechanism for supporting cloud providers is currently in transition: the original method of implementing cloud provider-specific functionality within the main kubernetes tree (here) is no longer advised; however, the proposed solution is still in development.
Guidance for potential cloud providers:
- Support for cloud providers is currently in a state of flux. Background information on motivation and the proposal for improving is in the github proposal.
- In support of this plan, a new cloud-controller-manager binary was added in 1.6. This was the first of several steps (see the proposal for more information).
- Attempts to contribute new cloud providers or (to a lesser extent) persistent volumes to the core repo will likely meet with some pushback from reviewers/approvers.
- It is understood that this is an unfortunate situation in which 'the old way is no longer supported but the new way is not ready yet', but the initial path is unsustainable, and contributors are encouraged to participate in the implementation of the proposed long-term solution, as there is risk that PRs for new cloud providers here will not be approved.
- Though the fully productized support envisioned in the proposal is still 2 - 3 releases out, the foundational work is underway, and a motivated cloud provider could accomplish the work in a forward-looking way. Contributors are encouraged to assist with the implementation of the design outlined in the proposal.
Some additional context on status / direction:
- 1.6 added a new cloud-controller-manager binary that may be used for testing the new out-of-core cloudprovider flow.
- Setting cloud-provider=external allows for creation of a separate controller-manager binary
- 1.7 adds extensible admission control, further enabling topology customization.