sardaukar / k8s-at-home-with-k3s

Kubernetes at home with K3s

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k3s setup

Makefile and YAMLs from the blog post about k3s at home.

NOTE - these YAML files issue Let's Encrypt staging certificates that are not valid. When you're sure it all works, change:

cert-manager.io/cluster-issuer: letsencrypt-staging

to

cert-manager.io/cluster-issuer: letsencrypt-prod

on all ingress definitions.

To use this Makefile, first make sure you have a VM with a hostname of k3s-vm installed, and you can SSH into it as root with no password (put your SSH key on it). This on your ~/.ssh/config will help:

Host k3s
    User root
    Hostname 192.168.1.60

If you use a different name for your server, edit HOST on the Makefile and the hostname condition in the nodeAffinity statements for Bookstack and Portainer.

Steps

  1. Forward the following ports to your server's IP:
  • 22/TCP ssh
  • 80/TCP http
  • 443/TCP https
  • 6443/TCP k8s API
  • 10250/UDP kubelet
  1. Point your domain name to your external IP with both domain and *.domain A records (or AAAA for IPv6)

  2. change user@domain.tld and domain.tld for the proper values for your setup in the YAML files for ingresses and configmaps - CERTIFICATES AND INGRESSES WILL NOT WORK WITH THE VALUES PRESENT NOW

  3. test ssh k3s and confirm you get a root shell with no password prompt

  4. double-check the top of the Makefile for the HOST_IP and HOST variable values

  5. make k3s_install base bookstack portainer samba (you might need to run it a few times if you get an error like error: no matching resources found - it's fine to repeat this command multiple times)

The default user for Bookstack is admin@admin.com and the password is password.

Feedback and pull requests welcome!

To-do list:

  • unite bookstack and bookstack-mysql into single service
  • find a better way than using nodeAffinity for the PV provisioning
  • find a better way to specify the mysql port in the configmap for Bookstack other than literally using 10001

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Kubernetes at home with K3s


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