38 lines
1.3 KiB
Nix
38 lines
1.3 KiB
Nix
{ config, lib, pkgs, ... }:
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{
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options.homelab.dockerNetworks = lib.mkOption {
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description = "Declarative Docker networks to create before containers start.";
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default = {};
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type = lib.types.attrsOf (lib.types.submodule {
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options = {
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requiredBy = lib.mkOption {
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type = lib.types.listOf lib.types.str;
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default = [];
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description = "List of systemd services that require this network (e.g., docker-containerName.service).";
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};
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};
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});
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};
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config = {
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systemd.services = lib.mapAttrs' (networkName: cfg:
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lib.nameValuePair "docker-${networkName}-create-network" {
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description = "Create Docker network for ${networkName}";
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requiredBy = cfg.requiredBy;
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after = [ "network.target" "docker.service" ];
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requires = [ "docker.service" ];
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wantedBy = [ "multi-user.target" ];
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serviceConfig = {
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Type = "oneshot";
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RemainAfterExit = true;
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ExecStart = pkgs.writeShellScript "create-${networkName}-docker-network" ''
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if ! ${pkgs.docker}/bin/docker network ls | grep -q ${networkName}; then
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${pkgs.docker}/bin/docker network create ${networkName}
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fi
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'';
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};
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}
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) config.homelab.dockerNetworks;
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};
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}
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