80 lines
2.1 KiB
Markdown
80 lines
2.1 KiB
Markdown
# Noisebridge Wiki Infra
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This repo manages the Noisebridge wiki hosts on NixOS.
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## Commands
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Bootstrap a brand new Ubuntu 22.04 DigitalOcean VPS into NixOS:
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```sh
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nix run .#bootstrap-host -- <main-wiki|replica-wiki> <target-host> [ssh-identity-file]
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nix run .#bootstrap-host -- <main-target-host> <replica-target-host> [ssh-identity-file]
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```
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Example:
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```sh
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nix run .#bootstrap-host -- main-wiki root@203.0.113.10 ~/.ssh/do-bootstrap
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nix run .#bootstrap-host -- root@203.0.113.10 root@203.0.113.11 ~/.ssh/do-bootstrap
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```
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What bootstrap does:
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- copies a first-boot module to the host
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- runs `nixos-infect` on the Ubuntu VPS
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- converts the machine to NixOS with the `jet` admin user
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- disables direct root SSH
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- fixes the known bad IPv6 routes generated by `nixos-infect`
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Deploy all already-bootstrapped hosts:
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```sh
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nix run .#deploy
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```
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Deploy one host only:
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```sh
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nix run .#deploy -- .#main-wiki
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nix run .#deploy -- .#replica-wiki
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```
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Check the flake:
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```sh
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nix flake check 'path:.' --accept-flake-config
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```
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## Secret Model
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- admin keys stay in `secrets/secrets.nix`
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- host recipients live in `secrets/hosts/*.age.pub`
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- host private age keys stay local in `.bootstrap/` and are gitignored
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- hosts decrypt agenix secrets with `/var/lib/agenix/host.age`
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- host SSH keys are separate and can rotate without breaking agenix
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## Normal Lifecycle
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1. Create a raw VPS.
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2. Run `nix run .#bootstrap-host -- ...` from the repo root on an admin laptop.
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3. The machine installs NixOS and comes up over hardened public SSH as `jet`.
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4. Future changes use `nix run .#deploy`.
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## GitHub Settings
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To require pull requests and auto-deploy only from `main`, set branch protection or a ruleset on `main` with:
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- require a pull request before merging
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- do not allow direct pushes to `main`
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- require status checks to pass before merging
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- select the CI check job from this repo
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- optionally require approvals before merging
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This repo already deploys on pushes to `main` in `.github/workflows/ci.yml`.
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That means the intended flow is:
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1. open a PR
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2. CI passes
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3. merge into `main`
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4. GitHub Actions runs `nix run .#deploy`
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