Learn FLUXCD-GITOPS with Real Code Examples

Deploy a web application using Kustomize overlays

Use HelmRelease to deploy a Helm chart with FluxCD

Automate container image updates in staging environment

Set up multi-cluster deployments for production and staging

Monitor drift and send notifications to Slack or email

Check controller logs for reconciliation errors

Verify Git repository access and branch configuration

Ensure manifests or Helm charts are valid

Check image repository permissions for automated updates

Resolve conflicts or drift in cluster resources manually if needed

Validate manifests using `kubectl apply --dry-run`

Use `flux reconcile` commands to test Git sync

Run reconciliation manually in test clusters

Verify HelmRelease and Kustomization deployment outcomes

Monitor drift detection and notifications

Automated cluster reconciliation on Git push

Manual reconciliation using `flux reconcile`

Multi-cluster deployment via Git references

Automated image promotion with image automation controllers

Canary or progressive deployments using HelmRelease strategies

FluxCD controllers (source, kustomize, helm, notification, image automation)

Flux CLI (`flux`) for bootstrap and management

Helm and Kustomize tools for templating

SOPS / SealedSecrets for secret management

Monitoring dashboards (Prometheus, Grafana)

Kubernetes clusters (any compliant version)

Helm charts and repositories

Git providers: GitHub, GitLab, Bitbucket, Azure Repos

Notification platforms: Slack, Teams, email

Container registries: DockerHub, ECR, GCR, ACR

Organize Git repo by environment and app

Use Kustomize overlays for multi-environment consistency

Leverage HelmRelease for repeatable deployments

Enable image automation for faster updates

Monitor drift regularly and configure alerts

Managing secrets securely

Complex multi-environment Git repositories

Debugging reconciliation failures

Scaling controllers for large clusters

Monitoring drift and alerting effectively