Kubernetes GitOps

GitOps workflows using Flux and ArgoCD with kubectl-mcp-server tools.

Requires the gitops toolset: start kubectl-mcp-server with --toolsets default,gitops (or MCP_TOOLSETS=default,gitops). For deep work, the project-maintained MCP servers may fit better: Argo CD: https://github.com/argoproj-labs/mcp-for-argocd; Flux: https://fluxoperator.dev/mcp-server/.

When to Apply

Use this skill when:

• User mentions: "Flux", "ArgoCD", "GitOps", "sync", "reconcile"
• Operations: checking sync status, triggering reconciliation, drift detection
• Keywords: "out of sync", "deploy from git", "continuous delivery"

Priority Rules

Priority	Rule	Impact	Tools
1	Check source readiness before troubleshooting	CRITICAL	gitops_sources_list
2	Verify sync status before deployments	HIGH	gitops_app_get
3	Reconcile after git changes	MEDIUM	gitops_app_sync
4	Suspend before manual changes	LOW	kubectl_patch

Quick Reference

Task	Tool	Example
List Flux kustomizations	gitops_apps_list	gitops_apps_list(namespace)
Reconcile Flux	gitops_app_sync	gitops_app_sync(kind, name, namespace)
List ArgoCD apps	gitops_apps_list	gitops_apps_list(namespace)
Sync ArgoCD	gitops_app_sync	gitops_app_sync(name, namespace)

Flux CD

Check Flux Status

gitops_apps_list(namespace="flux-system")
gitops_apps_list(namespace)
gitops_sources_list(namespace="flux-system")

Reconcile Resources

gitops_app_sync(
    kind="kustomization",
    name="my-app",
    namespace="flux-system"
)

gitops_app_sync(
    kind="helmrelease",
    name="my-chart",
    namespace="default"
)

Suspend/Resume

kubectl_patch(resource_type="kustomization", name="my-app", namespace="flux-system", patch={"spec": {"suspend": true}}, patch_type="merge")

kubectl_patch(resource_type="kustomization", name="my-app", namespace="flux-system", patch={"spec": {"suspend": false}}, patch_type="merge")

See FLUX.md for detailed Flux workflows.

ArgoCD

List Applications

gitops_apps_list(namespace="argocd")

Get App Status

gitops_app_get(kind="application", name="my-app", namespace="argocd")

Sync Application

gitops_app_sync(kind="application", name="my-app", namespace="argocd")

Refresh App

gitops_app_sync(kind="application", name="my-app", namespace="argocd")

See ARGOCD.md for detailed ArgoCD workflows.

GitOps Troubleshooting

Flux Not Syncing

Symptom	Check	Resolution
Source not ready	gitops_sources_list()	Check git credentials
Kustomization failed	gitops_apps_list()	Check manifest errors
HelmRelease failed	gitops_apps_list()	Check values, chart version

ArgoCD Out of Sync

Symptom	Check	Resolution
OutOfSync	gitops_app_get()	Manual sync or check auto-sync
Degraded	Check health status	Fix unhealthy resources
Unknown	Refresh app	gitops_app_sync()

Environment Promotion

With Flux Kustomizations

gitops_app_sync(kind="kustomization", name="staging", namespace="flux-system")

gitops_app_sync(kind="kustomization", name="production", namespace="flux-system")

With ArgoCD

gitops_app_sync(kind="application", name="app-staging", namespace="argocd")

gitops_app_get(kind="application", name="app-staging", namespace="argocd")

gitops_app_sync(kind="application", name="app-production", namespace="argocd")

Multi-Cluster GitOps

Manage GitOps across clusters:

gitops_apps_list(namespace="flux-system", context="cluster-1")
gitops_apps_list(namespace="flux-system", context="cluster-2")

gitops_app_sync(
    kind="kustomization",
    name="apps",
    namespace="flux-system",
    context="production-cluster"
)

Drift Detection

Compare live state with desired:

gitops_app_get(kind="application", name="my-app", namespace="argocd")

gitops_apps_list(namespace="flux-system")

Prerequisites

• Flux: Required for Flux tools

  flux install
  

• ArgoCD: Required for ArgoCD tools

  kubectl create namespace argocd
  kubectl apply -n argocd -f https://raw.githubusercontent.com/argoproj/argo-cd/stable/manifests/install.yaml
  

Related Skills

• k8s-deploy - Standard deployments
• k8s-helm - Helm chart management