doyoubi / undermoon-operator-old

Kubernetes Operator for Redis cluster based on Undermoon

Undermoon Operator (MOVED)

This repo is moved to undermoon-operator

Kubernetes operator for easy Redis Cluster management based on undermoon using operator-sdk.

Usage

Build Helm Charts

> make build-helm

Then you can see the following packages in the current directory:

• undermoon-operator-0.1.0.tgz
• undermoon-cluster-0.1.0.tgz

Run the Operator

Run the undermoon-operator: Note that you can change the name my-undermoon-operator.

> helm install my-undermoon-operator undermoon-operator-0.1.0.tgz

Create an Undermoon Cluster

Create an undermoon cluster by installing helm charts package:

> helm install my-cluster \
    --set 'cluster.clusterName=my-cluster-name' \
    --set 'cluster.chunkNumber=1' \
    --set 'cluster.maxMemory=50' \
    --set 'cluster.port=5299' \
    undermoon-cluster-0.1.0.tgz

Fields here:

• clusterName: Name of the cluster. Should be less than 30 bytes. This can't be modifed.
• chunkNumber: Used to specify the node number of the cluster. One chunk always consists of 2 masters and 2 replicas. Modify this to scale the cluster.
• maxMemory: Specifies the maxmemory config for each Redis node in MBs. This can't be modifed.
• port: The service port your redis clients connect to. This can't be modifed.

Then you can access the service through my-cluster:5299 inside the Kubernetes cluster:

# This can only be run inside the Kubernetes cluster.
> redis-cli -h my-cluster -p 5299 -c get mykey

Scale the Cluster

> kubectl edit undermoon/my-cluster
# Change the `chunkNumber`, save, and exit.

Then the cluster will automatically scale the cluster.

Docs

• Development