Install on Kubernetes with Helm Chart

Install on Kubernetes with Helm Chart

This guide describes how to deploy Dragonfly on a Kubernetes cluster using Helm (See Install Helm).

Prerequisites

A Kubernetes cluster (see Kind or Minikube if you want to experiment locally).
Select the Dragonfly version:
For the latest version, set: VERSION=v1.20.0
Choose a version from here

Install a standalone master

Run this command:

helm upgrade --install dragonfly oci://ghcr.io/dragonflydb/dragonfly/helm/dragonfly --version $VERSION

Install a standalone master with snapshot taken every minute

Add the following to the myvals.yaml values file (create a new file if it doesn’t exist):

1. storage:
2. enabled: true
3. requests: 128Mi # Set as desired

5. extraArgs:
6. - --dbfilename=dump.rdb
7. - --snapshot_cron=* * * * * # cron format

9. podSecurityContext:
10. fsGroup: 2000

12. securityContext:
13. capabilities:
14. drop:
15. - ALL
16. readOnlyRootFilesystem: true
17. runAsNonRoot: true
18. runAsUser: 1000

Run this command: helm upgrade -f myvals.yaml --install dragonfly oci://ghcr.io/dragonflydb/dragonfly/helm/dragonfly --version $VERSION

Integrate with Kube-Prometheus Monitoring

If you have Kube-Prometheus installed in your cluster, you set it to monitor your Dragonfly deployment by enabling the serviceMonitor and prometheusRule in your values file. For example:

1. serviceMonitor:
2. enabled: true

4. prometheusRule:
5. enabled: true
6. spec:
7. - alert: DragonflyMissing
8. expr: absent(dragonfly_uptime_in_seconds) == 1
9. for: 0m
10. labels:
11. severity: critical
12. annotations:
13. summary: Dragonfly is missing
14. description: "Dragonfly is missing"

More Customization

For more customization please see the Dragonfly Chart