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Nico Schottelius 2021-07-12 14:33:11 +02:00
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* We have a shared, open area outside for hacking
* Inside the building: masks required
* Toilets and bath room are located inside
## What to bring
* Adapters from CH
* A tent + sleeping equipment
## What you can find here
* A nearby supermarket (2km) reachable by foot, scooter, bike
* A waterfall + barbecue place (~400m)
* Fast Internet to the tent
* Daily attractions such as hacking, hiking, biking, hanging out
## Registration
As the space is limited, we can accomodate about 10 tents (roughly 23
people). To register, send an email to support@ungleich.ch based on
the following template:
```
Number of people:
Names of people:
Power for tent (y/n):
```
The particaption fee is 70 CHF/person (to be paid on arrival).

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title: ungleich production cluster #1
---
pub_date: 2021-07-05
---
author: ungleich
---
twitter_handle: ungleich
---
_hidden: no
---
_discoverable: no
---
abstract:
In this blog article we describe our way to our first production
kubernetes cluster.
---
body:
## Introduction
This article is WIP to describe all steps required for our first
production kubernetes cluster and the services that we run in it.
## Setup
### Bootstrapping
* All nodes are running [Alpine Linux](https://alpinelinux.org)
* All nodes are configured using [cdist](https://cdi.st)
* Mainly installing kubeadm, kubectl, crio *and* docker
* At the moment we try to use crio
* The cluster is initalised using **kubeadm init --config
k8s/c2/kubeadm.yaml** from the [ungleich-k8s repo](https://code.ungleich.ch/ungleich-public/ungleich-k8s)
### CNI/Networking
* Calico is installed using **kubectl apply -f
cni-calico/calico.yaml** from the [ungleich-k8s
repo](https://code.ungleich.ch/ungleich-public/ungleich-k8s)
* Installing calicoctl using **kubectl apply -f
https://docs.projectcalico.org/manifests/calicoctl.yaml**
* Aliasing calicoctl: **alias calicoctl="kubectl exec -i -n kube-system calicoctl -- /calicoctl"**
* All nodes BGP peer with our infrastructure using **calicoctl create -f - < cni-calico/bgp-c2.yaml**
### Persistent Volume Claim support
* Provided by rook
* Using customized manifests to support IPv6 from ungleich-k8s
```
for yaml in crds common operator cluster storageclass-cephfs storageclass-rbd toolbox; do
kubectl apply -f ${yaml}.yaml
done
```
### Flux
Starting with the 2nd cluster?
## Follow up
If you are interesting in continuing the discussion,
we are there for you in
**the #kubernetes:ungleich.ch Matrix channel**
[you can signup here if you don't have an
account](https://chat.with.ungleich.ch).
Or if you are interested in an IPv6 only kubernetes cluster,
drop a mail to **support**-at-**ungleich.ch**.