mirror of
https://github.com/NixOS/nixpkgs.git
synced 2024-12-22 21:53:32 +00:00
38 lines
1.5 KiB
Markdown
38 lines
1.5 KiB
Markdown
# pkgs.ociTools {#sec-pkgs-ociTools}
|
|
|
|
`pkgs.ociTools` is a set of functions for creating containers according to the [OCI container specification v1.0.0](https://github.com/opencontainers/runtime-spec). Beyond that, it makes no assumptions about the container runner you choose to use to run the created container.
|
|
|
|
## buildContainer {#ssec-pkgs-ociTools-buildContainer}
|
|
|
|
This function creates a simple OCI container that runs a single command inside of it. An OCI container consists of a `config.json` and a rootfs directory. The nix store of the container will contain all referenced dependencies of the given command.
|
|
|
|
The parameters of `buildContainer` with an example value are described below:
|
|
|
|
```nix
|
|
buildContainer {
|
|
args = [
|
|
(with pkgs;
|
|
writeScript "run.sh" ''
|
|
#!${bash}/bin/bash
|
|
exec ${bash}/bin/bash
|
|
'').outPath
|
|
];
|
|
|
|
mounts = {
|
|
"/data" = {
|
|
type = "none";
|
|
source = "/var/lib/mydata";
|
|
options = [ "bind" ];
|
|
};
|
|
};
|
|
|
|
readonly = false;
|
|
}
|
|
```
|
|
|
|
- `args` specifies a set of arguments to run inside the container. This is the only required argument for `buildContainer`. All referenced packages inside the derivation will be made available inside the container.
|
|
|
|
- `mounts` specifies additional mount points chosen by the user. By default only a minimal set of necessary filesystems are mounted into the container (e.g procfs, cgroupfs)
|
|
|
|
- `readonly` makes the container\'s rootfs read-only if it is set to true. The default value is false `false`.
|