63 lines
1.7 KiB
Markdown
63 lines
1.7 KiB
Markdown
# Runner Images (NixOS)
|
|
|
|
This repo exports reproducible NixOS runner configurations via flake outputs:
|
|
|
|
- `nixosConfigurations.ec-runner-aarch64`
|
|
- `nixosConfigurations.ec-runner-x86_64`
|
|
- `nixosConfigurations.ec-runner-aarch64-netboot`
|
|
- `nixosConfigurations.ec-runner-x86_64-netboot`
|
|
- `nixosConfigurations.ec-runner-x86_64-iso`
|
|
- `nixosConfigurations.ec-runner-aarch64-sdimage`
|
|
|
|
The runner OS exposes this repo's flake source inside the system at:
|
|
|
|
- `/etc/every-channel/flake`
|
|
|
|
This allows a runner to self-build and verify artifacts from the same flake definition.
|
|
|
|
## Read-Only Root + tmpfs Writes
|
|
|
|
The base runner profile enables an initrd overlay that:
|
|
|
|
- remounts the real `/` read-only, and
|
|
- provides a tmpfs-backed writable overlay upperdir.
|
|
|
|
For reliable upgrades and operation, mount persistent filesystems for:
|
|
|
|
- `/boot` (so new boot entries persist)
|
|
- `/nix` (so store contents persist across reboots)
|
|
- `/var` or selected `/var/lib/*` paths (for any state you care about)
|
|
|
|
## Build (OrbStack / Linux)
|
|
|
|
These commands should be run inside a Linux environment with Nix enabled (e.g. OrbStack VM).
|
|
|
|
Build netboot artifacts (iPXE/PXE):
|
|
|
|
```sh
|
|
nix build .#nixosConfigurations.ec-runner-aarch64-netboot.config.system.build.netboot
|
|
```
|
|
|
|
Build an installer ISO (x86_64):
|
|
|
|
```sh
|
|
nix build .#nixosConfigurations.ec-runner-x86_64-iso.config.system.build.isoImage
|
|
```
|
|
|
|
Build an aarch64 SD image:
|
|
|
|
```sh
|
|
nix build .#nixosConfigurations.ec-runner-aarch64-sdimage.config.system.build.sdImage
|
|
```
|
|
|
|
## Outputs
|
|
|
|
After building, artifacts will be in `./result` (a symlink into the Nix store).
|
|
|
|
Common netboot outputs include:
|
|
|
|
- `kernel`
|
|
- `initrd`
|
|
- `netboot.ipxe`
|
|
|
|
Exact filenames may vary across NixOS releases.
|