Mukul SharmaandClaude Opus 5 9c67afd5e0 GKE: register the remaining tools, add the registry CA issuer
Adds nine Applications — external-secrets, harbor, jenkins, postgresql,
redis, victoria-metrics-single, vmagent, node-exporter, grafana — bringing
the cluster to the homelab's full set. Every nameOverride is pinned, which
is load-bearing rather than cosmetic in at least three cases:
external-secrets (its service account name is what vault-backend's
serviceAccountRef and Vault's auth role bind to), victoria-metrics-single
(its Service renders as <release>-server, the address vmagent and Grafana
both hardcode) and harbor (the pipeline refers to its object names).

extra-manifests gains the ClusterIssuer that makes cert-manager useful
here: a CA issuer over the registry-ca Secret, which is created by hand
from terraform output because the CA's private key exists only in
Terraform state and nothing can reconcile it from git.

Two homelab-only things removed rather than left to confuse: the Tailscale
Harbor Ingress, and the homelab cluster's own entry point and values file,
which have no meaning in a GCP-only repo. app-of-secretstores and
app-of-extra-manifests now point at this cluster's Gitea over cluster DNS,
and harbor-robot-dockerconfig is keyed to this cluster's registry hostname
— docker matches stored credentials by exact host, so the homelab's would
have silently pushed unauthenticated.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01LEsTefWWifp4ikvhHF5s6N
2026-09-12 15:01:59 +05:30
2026-08-26 04:03:34 +05:30

devops-infra-argo-config

GitOps control plane for infrastructure tooling across Meesho's Kubernetes fleet.

This repo manages ArgoCD Application resources for every infrastructure tool (Contour, VictoriaMetrics, Grafana, Kyverno, KEDA, external-secrets, Vault, etc.) deployed across ~19 clusters. It uses an App-of-Applications pattern: one parent Application per cluster renders child Applications from a appSpec[] list via a generic Helm chart.

Each environment tracks a dedicated branch — merging to that branch triggers immediate ArgoCD auto-sync with no staging gate:

Environment Branch
Production (prd) main
Staging (stg) develop
Integration (int) pre-prod

How it works

incubator/<env>/<cluster>.yaml          ← Parent Application (one per cluster)
    └── points at generic-argo-apps-chart/ + values/<env>/<cluster>-values.yaml
            └── renders one child Application per appSpec[] entry
                    └── sources charts + overrides from devops-infra-helm-charts

Directory structure

Directory Purpose
incubator/<env>/ Parent ArgoCD Application YAML, one per cluster
values/<env>/ Values files defining which tools deploy per cluster
generic-argo-apps-chart/ Helm chart that renders child Applications from appSpec[]
projects/ ArgoCD AppProject definitions (sre, sec)
external-name-service-*/ Cross-cluster DNS routing (ExternalName / MCS topology)
docs/ Agent-facing operational documentation
skills/ Parameterized agent tasks for common operations
wiki/ Architecture decisions and entity pages

Getting started

Common operations

Task Procedure
Add a tool to a cluster docs/platform/procedures/add-tool-to-cluster.md
Upgrade a chart version docs/platform/procedures/upgrade-chart-version.md
Onboard a new cluster docs/platform/procedures/add-new-cluster.md
Roll out a tool fleet-wide docs/platform/procedures/fleet-wide-tool-rollout.md
Debug sync failure docs/platform/runbooks/argocd-sync-failure.md
Debug Helm render error docs/platform/runbooks/render-failure.md
Find values inconsistencies across clusters docs/platform/runbooks/values-drift.md
Debug stuck deployment docs/platform/runbooks/deployment-stuck.md

Sister repos

  • devops-infra-helm-charts — Helm charts and custom-values.yaml overrides. Every appSpec[].chartDir and valuesDir must exist here.
  • devops-argo-config — Same pattern for service/application workloads (not infra tooling).
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