kubernetes/kops

Feature - Support GCP IAM Roles for Service Accounts

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#14,695 建立於 2022年11月30日

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area/provider/gcphelp wantedkind/feature

描述

/kind feature

1. Describe IN DETAIL the feature/behavior/change you would like to see. GCP has support for IAM Roles using K8s service accounts, and I think it would be great if kOps could handle configuring this automatically. GKE Workload Identity docs.

kOps already supports AWS IAM Roles for service accounts docs. Example of kOps cluster spec stanza:

spec:
  serviceAccountIssuerDiscovery:
    discoveryStore: s3://publicly-readable-store
    enableAWSOIDCProvider: true

Ideally, I would define a similar stanza for serviceAccountIssuerDiscovery but with GCP specific values

spec:
  serviceAccountIssuerDiscovery:
    discoveryStore: gs://publicly-readable-store
    enableGCPOIDCProvider: true

I've also found gcp-workload-identity-federation-webhook which does the same things as amazon-eks-pod-identity-webhook. Maybe kOps can add that to addons as well.

FR for AWS IAM Role for Service accounts - https://github.com/kubernetes/kops/issues/8264

2. Feel free to provide a design supporting your feature request.

貢獻者指南

技術棧
gogcp
領域
backendcloudsecurity
議題類型
feature
難度面向新貢獻者的預計實作難度，1 表示很小改動，5 表示專家級工作。
4
預計時間有經驗貢獻者完成調查、實作、測試並準備 pull request 的粗略時間範圍。
over 1 week
活動狀態議題目前的可參與程度：新鮮、活躍、陳舊、阻塞或等待維護者輸入。
blocked
清晰度議題是否清楚說明預期改動、驗收標準和下一步。
mostly clear
前置要求
Knowledge of kOpsGCP IAMKubernetes service accounts
新手友善度1-100 的估計分數，表示該議題對首次貢獻者的友善程度。
20
研究方向
This issue requests GCP IAM Roles for service accounts, similar to the existing AWS IRSA feature. The current implementation is in the `serviceAccountIssuerDiscovery` config. To start, examine the AWS IRSA code in kOps (e.g., `pkg/...` related to service account discovery). The linked GKE Workload Identity docs and the gcp workload identity federation webhook repository provide reference implementations. The assignee may already have a design in mind; check comments for any updates. The scope involves adding a GCP OIDC provider and potentially a webhook addon.