Usage

This repo is to create rancher and add kind (Kubernetes IN Docker) into Rancher automatically with all-in-one script. It also installs cluster monitoring, linkerd and linkerd-viz

Create Rancher UI
Create Kind Kubernetes cluster
Init rancher admin’s password
Update server url in rancher
Import kind cluster into rancher
Install cluster monitoring
Generate linkerd certificates
Install linkerd
Install linkerd-viz

Notes

Rancher API keeps changing, currently we hard code the rancher version to version "v2.6.2"

Prerequisite

Make sure you have installed:

Kind (kubernetes in docker) locally. The installation instruction is here: https://kind.sigs.k8s.io/docs/user/quick-start/
Kubectl
Linkerd cli
Helm 3

Adjust docker engine memory

Default docker engine is set to use 2GB runtime memory, adjust it to 8GB+ if you can.

review kind.yaml

Currently I only set one worker node, you can add more if you need.

Create the stack

$ ./rkind.sh create

Destroy the stack

$ ./rkind.sh destroy

Custom kind configuration

If you'd like to change the kind configuration, please update file kind.yaml. For details, go through https://kind.sigs.k8s.io/

The helm charts

The helm charts includes the original charts as dependencies, adds overrides, and might add extra dependencies, like adding loki to grafana and a nodeport service to linkerd-viz.

Changes to Rancher monitoring

Extra dependencies (loki + promtail): https://github.com/presidenten/rancher-in-kind/blob/master/charts/monitoring/Chart.yaml#L8-L16
Value overrides: https://github.com/presidenten/rancher-in-kind/blob/master/charts/monitoring/values.yaml

Changes to linkerd-viz

Helm value overrides: https://github.com/presidenten/rancher-in-kind/blob/master/charts/linkerd-viz/values.yaml
Extra nodeport service: https://github.com/presidenten/rancher-in-kind/blob/master/charts/linkerd-viz/templates/services/linkerd-viz-nodeport.yaml

presidenten / rancher-in-kind