add kanzone presentation

presentation_kanzone.org

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+* Hvordan kjøre k8s cluster på hytta for fun and profit!
+
+* Hvordan kjøre k8s cluster på hytta for fun +and profit!+ and savings!
+
+* Hvordan kjøre k8s cluster på hytta for fun +and profit!+ +and savings!+ uh.... and FUN!
+
+[[./images/server.jpg]]
+
+* Men altså... how did we get here?
+
+* Men altså... how did we get here?
+
+[[./images/minecraft.png]]
+
+* Bare-metal og vps!
+
+#+begin_src plantuml :file images/baremetal.png
+!pragma layout smetana
+
+actor meg
+
+package Vps {
+  agent vpsNginx
+}
+
+package Hjemme {
+
+  boundary ruter
+
+  package Server {
+
+    agent serverNginx
+
+    agent nextcloud
+
+  }
+
+}
+
+
+meg -> vpsNginx
+
+vpsNginx -ri-> ruter : port-forward
+ruter -ri-> serverNginx
+serverNginx -> nextcloud
+#+end_src
+
+#+RESULTS:
+[[file:images/baremetal.png]]
+
+* Docker! ... og en del nginx og ruter-mikk...
+
+#+begin_src plantuml :file images/docker.png
+!pragma layout smetana
+
+actor meg
+
+package Vps {
+  agent vpsNginx
+}
+
+package Hjemme {
+
+  boundary ruter
+
+  package Server {
+
+    agent serverNginx
+
+    package Docker {
+      agent nextcloud
+    }
+  }
+}
+
+
+meg -> vpsNginx
+
+vpsNginx -ri-> ruter : port-forward
+ruter -ri-> serverNginx
+serverNginx -> nextcloud : expose-port
+#+end_src
+
+#+RESULTS:
+[[file:images/docker.png]]
+
+* wireguard!
+
+#+begin_src plantuml :file images/docker.png
+!pragma layout smetana
+
+actor meg
+
+package Vps {
+  agent vpsNginx
+}
+
+package Hjemme {
+
+  package Server {
+
+    agent serverNginx
+
+    package Docker {
+      agent nextcloud
+    }
+
+  }
+
+}
+
+
+meg -> vpsNginx
+
+vpsNginx -ri-> serverNginx : wireguard
+serverNginx -> nextcloud : expose-port
+#+end_src
+
+#+RESULTS:
+[[file:images/docker.png]]
+
+ veldig enkel måte å sette opp vpn på!
+
+* ... er k8s løsningen?
+
+#+ATTR_ORG: :width 900
+[[./images/k8s-logo.png]]
+
+ - Distribuert!
+ - Config management!
+ - Mer enn bare containere!
+ - og relevant for jobb!
+
+* Men hvilken distro skal jeg velge?
+
+* Men hvilken distro skal jeg velge?
+
+** standard / kubeadm
+
+ - bare base k8s,
+   mangler mange componenter for å faktisk gjøre ting.
+
+** k0s
+
+ - veldig lightweight, må sette opp en del selv.
+
+** Minikube
+
+ - enkelt
+ - lager egen vm, kun 1 node
+
+** rancher rke & rke2
+
+ - Rke kjører over docker
+ - Rke2 var ikke stabilt når jeg startet
+
+** rancher k3s
+
+ - egentlig laget for edge, men funker ganske greit for
+   større ting og har mye ute av boksen!
+
+ - funker i litt mer utradisjonelle k8s miljø 
+
+* Utfordring: NAT
+
+#+begin_src plantuml :file images/kubeServer.png
+!pragma layout smetana
+
+actor meg
+
+package Vps {
+   agent k8sController
+}
+
+package Hjemme {
+  package Server {
+    agent k8sAgent
+  }
+}
+
+meg -> k8sController
+k8sController <-> k8sAgent : wireguard
+
+#+end_src
+
+#+RESULTS:
+[[file:images/kubeServer.png]]
+
+#+begin_src plantuml :file images/kubeInternal.png
+boundary k8sController
+
+package k8s {
+  agent nginxIngress 
+  agent nextcloud
+}
+
+k8sController -> nginxIngress
+nginxIngress -> nextcloud
+#+end_src
+
+#+RESULTS:
+[[file:images/kubeInternal.png]]
+
+* helm magic!
+
+ =helm install <whatever> -f config.yaml=
+
+  https://artifacthub.io/ docker hub for helm!
+
+* Git-ops & fluxcd!
+
+ Skriv yaml -> commit til git -> *k8s magic* -> deployed!
+
+* Så hva kjører jeg?
+
+ - Nextcloud
+ - immich
+ - Gitea
+ - Drone cicd
+ - chat-bots
+ - archlinux pakke repo
+ - openldap
+ - bitwarden (vaultwarden)
+ - mail server
+ - jellyfin
+ - k8s componenter!
+   - k3s
+   - openebs
+   - cert-manager & trust-manager
+   - loki / prometheus / grafana
+   - container registry
+   - stakater-reloader
+   - nginx ingress controller
+   - FluxCD
+
+* Hva ville jeg gjort anderledes?
+
+ - all config i git fra starten av!
+ - bruk gitops tidligere
+
+* Gode ressurser / Ting å google
+
+** Youtube
+
+ - Jeff Geerling
+ - TechnoTim
+ - Just me and opensource
+ - Level1Techs
+
+** Reddit
+
+ - /r/selfhosted
+ - /r/DataHoarder
+ - /r/homelab
+ - /r/HomeServer
+ - /r/k3s
+ - /r/rancher
+ - /r/linux
+
+** StackExchange
+
+** eller, spør meg!
+
+* Demo?
+
+#+begin_src bash :results drawer replace
+  k3d cluster delete
+  k3d cluster create -p "8081:80@loadbalancer" --agents 2 
+#+end_src
+
+#+begin_src bash :results drawer replace
+  kubectl get nodes
+#+end_src
+
+#+begin_src bash :results drawer replace
+  kubectl get pods -A -o wide
+#+end_src
+
+#+begin_src bash :results drawer replace
+  helm repo add podinfo https://stefanprodan.github.io/podinfo
+
+  helm install podinfo podinfo/podinfo --set ingress.enabled=true
+#+end_src
+
+#+begin_src bash :results drawer replace
+  curl -H 'Host: podinfo.local' localhost:8081
+#+end_src