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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=v1.11.0
    • 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​

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

    storage:
      enabled: true
      requests: 128Mi # Set as desired

    extraArgs:
      - --dbfilename=dump.rdb
      - --save_schedule=*:* # HH:MM glob format

    podSecurityContext:
      fsGroup: 2000

    securityContext:
      capabilities:
        drop:
          - ALL
      readOnlyRootFilesystem: true
      runAsNonRoot: true
      runAsUser: 1000

  2. 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:

serviceMonitor:
  enabled: true

prometheusRule:
  enabled: true
  spec:
    - alert: DragonflyMissing
      expr: absent(dragonfly_uptime_in_seconds) == 1
      for: 0m
      labels:
        severity: critical
      annotations:
        summary: Dragonfly is missing
        description: "Dragonfly is missing"

More Customization​

For more customization please see the Dragonfly Chart