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{ config, lib, pkgs, ... }:
let
cfg = config.virtualisation.podman;
inherit (lib) mkOption types;
# Provides a fake "docker" binary mapping to podman
dockerCompat = pkgs.runCommandNoCC "${pkgs.podman.pname}-docker-compat-${pkgs.podman.version}" {
outputs = [ "out" "bin" "man" ];
inherit (pkgs.podman) meta;
} ''
mkdir $out
mkdir -p $bin/bin
ln -s ${pkgs.podman.bin}/bin/podman $bin/bin/docker
mkdir -p $man/share/man/man1
for f in ${pkgs.podman.man}/share/man/man1/*; do
basename=$(basename $f | sed s/podman/docker/g)
ln -s $f $man/share/man/man1/$basename
done
'';
# Copy configuration files to avoid having the entire sources in the system closure
copyFile = filePath: pkgs.runCommandNoCC (builtins.unsafeDiscardStringContext (builtins.baseNameOf filePath)) {} ''
cp ${filePath} $out
'';
in
{
meta = {
maintainers = lib.teams.podman.members;
};
options.virtualisation.podman = {
enable =
mkOption {
type = types.bool;
default = false;
description = ''
This option enables Podman, a daemonless container engine for
developing, managing, and running OCI Containers on your Linux System.
It is a drop-in replacement for the <command>docker</command> command.
'';
};
dockerCompat = mkOption {
type = types.bool;
default = false;
description = ''
Create an alias mapping <command>docker</command> to <command>podman</command>.
'';
};
libpod = mkOption {
default = {};
description = "Libpod configuration";
type = types.submodule {
options = {
extraConfig = mkOption {
type = types.lines;
default = "";
description = ''
Extra configuration that should be put in the libpod.conf
configuration file
'';
};
};
};
};
};
config = lib.mkIf cfg.enable {
environment.systemPackages = [ pkgs.podman ]
++ lib.optional cfg.dockerCompat dockerCompat;
environment.etc."containers/libpod.conf".text = ''
cni_plugin_dir = ["${pkgs.cni-plugins}/bin/"]
cni_config_dir = "/etc/cni/net.d/"
'' + cfg.libpod.extraConfig;
environment.etc."cni/net.d/87-podman-bridge.conflist".source = copyFile "${pkgs.podman-unwrapped.src}/cni/87-podman-bridge.conflist";
# Enable common /etc/containers configuration
virtualisation.containers.enable = true;
};
}
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