nixcfg/doc/adding-nodes.md

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2022-12-22 22:33:10 +00:00
# Quick start
## How to create files for a new zone
*The documentation is written for the production cluster, the same apply for other clusters.*
Basically:
- Create your `site` file in `cluster/prod/site/` folder
- Create your `node` files in `cluster/prod/node/` folder
- Add your wireguard configuration to `cluster/prod/cluster.nix`
- You will have to edit your NAT config manually to bind one public IPv4 port to each node
- Nodes' public wireguard keys are generated during the first run of `deploy_nixos`, see below
- Add your nodes to `cluster/prod/ssh_config`, it will be used by the various SSH scripts.
- If you use `ssh` directly, use `ssh -F ./cluster/prod/ssh_config`
- Add `User root` for the first time as your user will not be declared yet on the system
## How to deploy a Nix configuration on a fresh node
We suppose that the node name is `datura`.
Start by doing the deployment one node at a time, you will have plenty of time
in your operator's life to break everything through automation.
Run:
- `./deploy_nixos prod datura` - to deploy the nix configuration file;
- a new wireguard key is printed if it hadn't been generated before, it has to be
added to `cluster.nix`, and then redeployed on all nodes as the new wireguard conf is needed everywhere
- `./deploy_passwords prod datura` - to deploy user's passwords
- if a user changes their password (using `./passwd`), needs to be redeployed on all nodes to setup the password on all nodes
- `./deploy_pki prod datura` - to deploy Nomad's and Consul's PKI