# K3s cluster
| Name | Usage | Accessibility | Host | DB type | Additional data | Backup configuration | Log management | Status |
|-------------------------|--------------------------------------|---------------|--------------|------------|----------------------|----------------------|----------------|--------------------------------|
| therbron.com | Personal website | Public | Socrates | - | - | - | Not configured | Awaiting configuration |
| Traefik | Reverse proxy and load balancer | Public* | Socrates | - | - | - | Not configured | Yes |
| Adguard | DNS ad blocker and custom DNS server | Private | Socrates | - | - | - | Not configured | Yes |
| Owncloud Infinity Scale | File hosting webUI | Public | Plato | PostgreSQL | Drive files | None | Not configured | Awaiting configuration |
| Home assistant | Home automation and monitoring | Private | Pythagoras-a | PostgreSQL | - | None | Not configured | Awaiting configuration |
| Vikunja | To-do and Kanban boards | Public | Pythagoras-b | - | - | - | Not configured | Migrate to Gitlab |
| Gitlab | Version control system | Public | Pythagoras-b | PostgreSQL | User created content | None | Not configured | Awaiting configuration |
| Wiki | Documentation manager | Public | Pythagoras-b | - | - | - | Not configured | Migrate to VuePress and Gitlab |
| Vaultwarden | Password manager | Public | Pythagoras-b | PostgreSQL | - | None | Not configured | Awaiting configuration |
| Synapse | Matrix server - Message centralizer | Public | Pythagoras-b | PostgreSQL | User medias | None | Not configured | Awaiting configuration |
| PaperlessNG | PDF viewer and organiser | Public | Pythagoras-b | PostgreSQL | - | - | Not configured | Research migration into OCIS |
| Raspsnir | Bachelor memorial website | Public | Pythagoras-b | PostgreSQL | - | None | Not configured | Awaiting configuration |
| Jellyfin | Media streaming | Public | Archimedes | - | - | - | Not configured | Awaiting configuration |
| Sonarr | TV shows collection manager | Private | Plato | SQLite** | Internal backups | None | Not configured | Awaiting configuration |
| Radarr | Movie collection manager | Private | Plato | SQLite** | Internal backups | None | Not configured | Awaiting configuration |
| Jackett | Torrent indexer | Private | Plato | - |
? | None | Not configured | Awaiting configuration |
| Deluge | Torrent client | Private | Plato | - | ? | - | Not configured | Awaiting configuration |
| Minecraft | Vanilla minecraft server for friends | Public | Archimedes | - | Game map | None | Not configured | Yes |
| Satisfactory | Satisfactory server for friends | Public | Archimedes | - | Game map | None | Not configured | Awaiting configuration |
| Space engineers | Space engineers server for friends | Public | Archimedes | - | Game map | None | Not configured | Awaiting configuration |
\* Configuration panel only available internally
** Current implementation only support SQLite, making manual backups a necessity
## Backup management
### Databases
All services needing a database to function come with a sidecar pod running a crontab to automate individual database backups.
These backups are saved into a longhorn volume, to benefit from general snapshots later one.
Each sidecar pod can only mount the backup folder it has been linked with, and cannot see other services' backups.
### Additional data
All additional data needing to be backed up is mounted to a longhorn volume, to also benefit from scheduled backups.
Example :
```
longhorn
└───backups
└───vaultwarden
│ └───.sql
│ │ ...
└───gitlab
└───.sql
│ ...
```
## Completed
- Add TLS certificates for every http applications
## TODO
- Change host/deployment specific variables to use environment variables
- Write CI/CD pipeline to create environment loaded files
- Write CI/CD pipeline to deploy cluster
- Setup internal traefik with nodeport as reverse proxy for internal only services
- Setup DB container sidecars for automated backups to Longhorn volume
- Setup secrets configuration through CI/CD variable injection
- ~~Look into CockroachDB for redundant database~~ Judged too complicated, moving to a 1 to 1 relationship between services and databases
- ~~Configure IP range accessibility through Traefik (Internal vs external services)~~ Impossible because of flannel ip-masq
## Notes
# Cluster base setup
Add node to the list of available load balancer
`kubectl label node svccontroller.k3s.cattle.io/enablelb=true`
Setup OVH configuration
`kubectl apply -f ovh-config.yaml`
Install traefik through helm
```
helm repo add traefik https://helm.traefik.io/traefik
helm repo update
helm install -f helm/traefik/values.yaml traefik traefik/traefik
```
Setup SSL certificates
```
kubectl apply -f ovh-config.yaml
```
Install longhorn
```
kubectl apply -f https://raw.githubusercontent.com/longhorn/longhorn/master/deploy/longhorn.yaml
```
Add longhorn storage classes
`kubectl apply -f res`