https://github.com/superseb/multipass-rke
Create an RKE cluster using Canonical's multipass
https://github.com/superseb/multipass-rke
docker multipass rancher rke
Last synced: 8 months ago
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Create an RKE cluster using Canonical's multipass
- Host: GitHub
- URL: https://github.com/superseb/multipass-rke
- Owner: superseb
- Archived: true
- Created: 2018-12-16T16:27:07.000Z (almost 7 years ago)
- Default Branch: master
- Last Pushed: 2021-05-25T11:10:27.000Z (over 4 years ago)
- Last Synced: 2025-02-04T09:41:27.157Z (8 months ago)
- Topics: docker, multipass, rancher, rke
- Language: Shell
- Size: 7.81 KB
- Stars: 5
- Watchers: 4
- Forks: 5
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
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README
# RKE cluster on multipass instances
This script will create a configurable amount of instances using [multipass](https://github.com/CanonicalLtd/multipass/), create or use specified SSH keys, install a configurable version of Docker on it, create the RKE configuration file (`cluster.yml`) and run RKE (`rke up`) to create the Kubernetes cluster.
## Requirements
* multipass (See [multipass: Getting it](https://github.com/CanonicalLtd/multipass#getting-it))
* RKE (See [rke: latest release](https://github.com/rancher/rke/releases/latest))
* Docker (to run `jq` in a container) or `jq` locally
## Running it
Clone this repo, and run the script:
```
bash multipass-rke.sh
```
This will (defaults):
* Generate random name for your cluster (configurable using `NAME`)
* Generate SSH key for RKE to access the nodes (configurable using `SSH_PRIVKEYFILE`, `SSH_PUBKEYFILE` and `SSH_PASSPHRASE`)
* Create cloud-init to add SSH public key to the machines and install Docker (`19.03` by default, configurable using `DOCKER_VERSION`)
* Create one machine (configurable using `COUNT_MACHINE`) with 2 CPU (`CPU_MACHINE`), 10G disk (`DISK_MACHINE`) and 4000M of memory (`MEMORY_MACHINE`) using Ubuntu focal (`IMAGE`)
* Create cluster.yml file for RKE
* Run `rke up` to create the cluster
## Quickstart Ubuntu 20.04 droplet
```
sudo snap install multipass
wget -O /usr/local/bin/rke https://github.com/$(wget https://github.com/rancher/rke/releases/latest -O - | egrep '/.*/.*/rke_linux-amd64' -o)
chmod +x /usr/local/bin/rke
wget https://raw.githubusercontent.com/superseb/multipass-rke/master/multipass-rke.sh
bash multipass-rke.sh
curl -Lo /usr/local/bin/kubectl https://storage.googleapis.com/kubernetes-release/release/$(curl -s https://storage.googleapis.com/kubernetes-release/release/stable.txt)/bin/linux/amd64/kubectl
chmod +x /usr/local/bin/kubectl
kubectl --kubeconfig kube_config_* get nodes
```
## Clean up
The files that are created are:
* `$NAME-cloud-init.yaml`
* `$NAME-cluster.yml`
* `$NAME-id_rsa` (if `SSH_PRIVKEYFILE` is empty)
* `$NAME-id_rsa.pub` (if `SSH_PRIVKEYFILE` is empty)
You can clean up the instances by running `multipass delete rke-$NAME-{1,2,3} --purge` or (**WARNING** this deletes and purges all instances): `multipass delete --all --purge`