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dotfiles/system/nixos/container.nix

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Nix

{ pkgs, config, ... }:
{
virtualisation = {
docker.enable = false;
podman = {
enable = true;
defaultNetwork.settings.dns_enabled = true;
dockerSocket.enable = false;
dockerCompat = false;
autoPrune = {
enable = true;
dates = "weekly";
flags = [ "--all" ];
};
};
oci-containers = {
backend = "podman";
};
};
networking.firewall.interfaces."podman+" = {
allowedUDPPorts = [ 53 443 ];
allowedTCPPorts = [ 53 443 5432 ];
};
# It looks like there is no way to activate the "built-in" service and timer ...
systemd.services.podman-auto-update-custom = {
description = "Run podman auto-update daily";
wants = [ "network-online.target" ];
after = [ "network-online.target" ];
startAt = "daily";
serviceConfig =
let
podman = config.virtualisation.podman.package;
in
{
Type = "oneshot";
ExecStart = "${podman}/bin/podman auto-update";
ExecStartPost = "${podman}/bin/podman image prune -f";
};
};
}