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Update Template Manager with Helm Charts

This guide shows how to update the Template Manager (Fluent Manager) using Helm. Replace the placeholder values with your environment details.

Prerequisites​

  • helm installed and authenticated to your cluster
  • Access to the Helm chart repository
  • Release names and Kubernetes namespaces for your environment

Placeholders​

Set these values for your environment before running commands:

  • CHART_REPO - Helm repo URL
  • NAMESPACE - Kubernetes namespace
  • RELEASE - Helm release name
  • CHART_TGZ - Chart package file (for example: fluent-helm-chart-x.y.z.tgz)
  • VALUES_FILE - Path to values file
  • ADMIN_EMAIL - Default admin email (if needed)
  • ADMIN_PASSWORD - Default admin password (if needed)

1) Add or update the chart repository​

helm repo add template-manager CHART_REPO
helm repo update

2) Review current release​

helm list -n NAMESPACE
helm history RELEASE -n NAMESPACE

3) Upgrade with the combined chart​

If your Helm chart packages both frontend and backend, a single upgrade is enough.

helm upgrade RELEASE CHART_TGZ \
  -n NAMESPACE \
  -f VALUES_FILE \
  --set manager.envConfigMap.FLUENT_MANAGER_DEFAULT_ADMIN_EMAIL=ADMIN_EMAIL \
  --set manager.envConfigMap.FLUENT_MANAGER_DEFAULT_ADMIN_PASSWORD=ADMIN_PASSWORD

4) Verify the rollout​

kubectl rollout status deployment/RELEASE-backend -n NAMESPACE
kubectl rollout status deployment/RELEASE-frontend -n NAMESPACE

5) Smoke check​

  • Open the UI and validate basic navigation.
  • Confirm backend health endpoints respond.
  • Check logs for errors.

6) Rollback (if needed)​

helm rollback RELEASE <REVISION> -n NAMESPACE

Notes​

  • Keep values files in source control per environment.
  • Prefer pinning chart versions for reproducible deployments.
  • If your chart does not include both services, keep separate upgrades for frontend and backend.