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Merge pull request 'install a Forgejo instance in the k8s cluster' (#37) from earl-warren/documentation:wip-k8s-forgejo into main
Reviewed-on: https://code.forgejo.org/infrastructure/documentation/pulls/37
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earl-warren
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d2fe8a0be5
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@ -6,6 +6,7 @@ There is a [dedicated chatroom](https://matrix.to/#/#forgejo-ci:matrix.org). A m
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- Setting up a new [K8S/DRBD/NFS k8s node](k8s.md)
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- Setting up a new [LXC/DRBD Host](lxc.md)
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- Managing services with a [LXC/DRBD/nginx stack](drbd-nginx-lxc.md)
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- Installing a [Forgejo instance in the K8S cluster](k8s-forgejo.md)
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- Installing a [Forgejo runner in an LXC container](runner-lxc.md)
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- Managing the [Octopuce host](octopuce.md)
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48
k8s-forgejo.md
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48
k8s-forgejo.md
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@ -0,0 +1,48 @@
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## Forgejo
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[forgejo](https://code.forgejo.org/forgejo-helm/forgejo-helm) configuration in [ingress](https://code.forgejo.org/forgejo-helm/forgejo-helm#ingress) for the reverse proxy (`traefik`) to route the domain and for the ACME issuer (`cert-manager`) to obtain a certificate. And in [service](https://code.forgejo.org/forgejo-helm/forgejo-helm#service) for the `ssh` port to be bound to the desired IPs of the load balancer (`metallb`).
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```
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ingress:
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enabled: true
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annotations:
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# https://cert-manager.io/docs/usage/ingress/#supported-annotations
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# https://github.com/cert-manager/cert-manager/issues/2239
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cert-manager.io/cluster-issuer: letsencrypt-http
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cert-manager.io/private-key-algorithm: ECDSA
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cert-manager.io/private-key-size: 384
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kubernetes.io/ingress.class: traefik
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traefik.ingress.kubernetes.io/router.entrypoints: websecure
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tls:
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- hosts:
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- t1.forgejo.org
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secretName: tls-forgejo-t1-ingress-http
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hosts:
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- host: t1.forgejo.org
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paths:
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- path: /
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pathType: Prefix
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service:
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http:
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type: ClusterIP
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ipFamilyPolicy: PreferDualStack
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port: 3000
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ssh:
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type: LoadBalancer
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annotations:
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metallb.universe.tf/loadBalancerIPs: 188.40.16.47,2a01:4f8:fff2:48::2
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metallb.universe.tf/allow-shared-ip: "key-to-share-failover"
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ipFamilyPolicy: PreferDualStack
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port: 2222
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```
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[Instruct the forgejo pod](https://code.forgejo.org/forgejo-helm/forgejo-helm#persistence) to use the `forgejo-data` pvc.
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```yaml
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persistence:
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enabled: true
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create: false
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claimName: forgejo-data
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```
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62
k8s.md
62
k8s.md
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@ -98,46 +98,7 @@ For the first node `./setup.sh setup_k8s`. For nodes joining the cluster `./setu
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- NFS storage class
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`./setup.sh setup_k8s_nfs`
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## Forgejo
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[forgejo](https://code.forgejo.org/forgejo-helm/forgejo-helm) configuration in [ingress](https://code.forgejo.org/forgejo-helm/forgejo-helm#ingress) for the reverse proxy (`traefik`) to route the domain and for the ACME issuer (`cert-manager`) to obtain a certificate. And in [service](https://code.forgejo.org/forgejo-helm/forgejo-helm#service) for the `ssh` port to be bound to the desired IPs of the load balancer (`metallb`).
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```
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ingress:
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enabled: true
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annotations:
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# https://cert-manager.io/docs/usage/ingress/#supported-annotations
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# https://github.com/cert-manager/cert-manager/issues/2239
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cert-manager.io/cluster-issuer: letsencrypt-http
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cert-manager.io/private-key-algorithm: ECDSA
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cert-manager.io/private-key-size: 384
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kubernetes.io/ingress.class: traefik
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traefik.ingress.kubernetes.io/router.entrypoints: websecure
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tls:
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- hosts:
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- t1.forgejo.org
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secretName: tls-forgejo-t1-ingress-http
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hosts:
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- host: t1.forgejo.org
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paths:
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- path: /
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pathType: Prefix
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service:
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http:
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type: ClusterIP
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ipFamilyPolicy: PreferDualStack
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port: 3000
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ssh:
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type: LoadBalancer
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annotations:
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metallb.universe.tf/loadBalancerIPs: 188.40.16.47,2a01:4f8:fff2:48::2
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metallb.universe.tf/allow-shared-ip: "key-to-share-failover"
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ipFamilyPolicy: PreferDualStack
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port: 2222
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```
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# K8S NFS storage creation
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## K8S NFS storage creation
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Define the 20GB `forgejo-data` pvc owned by user id 1000.
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@ -145,35 +106,26 @@ Define the 20GB `forgejo-data` pvc owned by user id 1000.
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./setup.sh setup_k8s_pvc forgejo-data 20Gi 1000
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```
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[Instruct the forgejo pod](https://code.forgejo.org/forgejo-helm/forgejo-helm#persistence) to use the `forgejo-data` pvc.
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# Disaster recovery and maintenance
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```yaml
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persistence:
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enabled: true
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create: false
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claimName: forgejo-data
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```
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Disaster recovery and maintenance
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# When a machine or disk is scheduled for replacement.
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## When a machine or disk is scheduled for replacement.
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* `kubectl drain hetzner05` # evacuate all the pods out of the node to be shutdown
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* `kubectl taint nodes hetzner05 key1=value1:NoSchedule` # prevent any pod from being created there (metallb speaker won't be drained, for instance)
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* `kubectl delete node hetzner05` # let the cluster know it no longer exists so a new one by the same name can replace it
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# Routing the failover IP
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## Routing the failover IP
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When the machine to which the failover IP (failover.forgejo.org) is routed is unavailable or to be shutdown, to the [Hetzner server panel](https://robot.hetzner.com/server), to the IPs tab and change the route of the failover IP to another node. All nodes are configured with the failover IP, there is nothing else to do.
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# Manual boot operations
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## Manual boot operations
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## On the machine that runs the NFS server
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### On the machine that runs the NFS server
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* `sudo drbdadm primary r1` # Switch the DRBD to primary
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* `sudo mount /precious` # DRBD volume shared via NFS
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* `sudo ip addr add 10.53.101.100/24 dev enp5s0.4001` # add NFS server IP
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## On the other machines
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### On the other machines
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* `sudo ip addr del 10.53.101.100/24 dev enp5s0.4001` # remove NFS server IP
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