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https://github.com/dehasi/k8s-vagrant
https://github.com/dehasi/k8s-vagrant
Last synced: 15 days ago
JSON representation
- Host: GitHub
- URL: https://github.com/dehasi/k8s-vagrant
- Owner: dehasi
- Created: 2022-11-10T21:42:33.000Z (about 2 years ago)
- Default Branch: main
- Last Pushed: 2022-12-18T22:36:27.000Z (about 2 years ago)
- Last Synced: 2024-11-07T05:42:54.546Z (2 months ago)
- Language: Shell
- Size: 66.4 KB
- Stars: 1
- Watchers: 1
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.adoc
Awesome Lists containing this project
README
= Kubernetes Cluster with Containerd on Vagrant
Making 3 nodes cluster.
== Prepare vagrant
=== Network
To be able to set IPs like `10.x.x.x` create a file `/etc/vbox/networks.conf`
with content:
./etc/vbox/networks.conf
----
include::networks.conf[]
----
=== Box
Choose the suitable box. I ended with `bento/ubuntu-16.04`.
Also tried
* `hashicorp/precise64` - doesn't have overlay module;
* `ubuntu/jammy64` - leads to `CrashLoopBackoff`.
[source, ruby]
----
config.vm.box = "bento/ubuntu-16.04"
----
== Install kubeadm
All scripts that config boxes, and install `containerd` and `kubeadm` are in `/scipts` folder.
== Control Pane
`kubeadm` needs at least 1.7 Gb RAM. That's why `provider` was configured.
[source, ruby]
----
config.vm.provider "virtualbox" do |vb|
vb.memory = 3*GB
vb.cpus = 2
end
----
While initiating `kubeadm` master's IP should be used (`--apiserver-advertise-address`)
otherwise some default network created by Vagrant will be used.
.init control pane
[source, shell]
----
include::init-kubernetes-control-pane.sh[]
----
`--pod-network-cidr` should have IPs which CNI plugin has.
For `calico` default is 192.168.0.0/16 for `flannel` it is 10.244.0.0/16,
not sure what needs to be done to vagrant for ips not clash,
https://gist.github.com/walidshaari/02dfa17fffc9ac93cd47545d427ed76a[source].
== Manual steps
We need to init Container Network Interface (CNI) plugin and join workers.
.manual steps
[source, shell]
----
include::after-init-manual-steps.sh[]
----
.result
----
vagrant@control-pane:~$ kubectl get nodes
NAME STATUS ROLES AGE VERSION
control-pane Ready control-plane 9m12s v1.24.0
worker-1 Ready worker 3m48s v1.24.0
worker-2 Ready worker 3m18s v1.24.0
----