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59 lines
2 KiB
Nix
59 lines
2 KiB
Nix
inputs: { lib, pkgs ? import <nixpkgs>, ... }:
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let
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storeDirectory = dir:
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let
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dirName = builtins.baseNameOf dir;
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drv = derivation {
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name = dirName;
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src = dir;
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builder = pkgs.writeShellScript "builder.sh" ''
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${pkgs.coreutils}/bin/mkdir -p $out/${dirName}
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${pkgs.coreutils}/bin/cp -rf $src/* $out/${dirName}
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${pkgs.coreutils}/bin/cp -rf $src/.* $out/${dirName}
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'';
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system = pkgs.system;
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};
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in
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"${drv}/${dirName}";
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# nixos oci-containers fucking suck, so we just do a one-shot
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# systemd service that invokes docker-compose
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#
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# not very reproducible nor declarative, but compatible with pretty much
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# anything, which is (imo) more important for a home server
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mkDockerComposeContainer =
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{ directory
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, name ? builtins.baseNameOf directory
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, autoStart ? true
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, extraConfig ? { }
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, env ? { }
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, envFiles ? [ ]
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, extraFlags ? [ ]
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}:
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let
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# referencing the file directly would make the service dependant
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# on the entire flake, resulting in the container being restarted
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# every time we change anything at all
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storeDir = storeDirectory directory;
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cmdline = [
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"--build"
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"--remove-orphans"
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] ++ map (env: "--env-file ${env}") envFiles
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++ map (name: "-e ${name}=${lib.escapeShellArg env.${name}}") (builtins.attrNames env)
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++ extraFlags;
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in
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{
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systemd.services."docker-compose-${name}" = {
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wantedBy = if autoStart then [ "multi-user.target" ] else [ ];
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after = [ "docker.service" "docker.socket" ];
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serviceConfig = {
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WorkingDirectory = storeDir;
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ExecStart = "${pkgs.docker}/bin/docker compose up ${builtins.concatStringsSep " " cmdline}";
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ExecStopPost = "${pkgs.docker}/bin/docker compose down";
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} // (extraConfig.serviceConfig or { });
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} // (builtins.removeAttrs extraConfig [ "serviceConfig" ]);
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};
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in
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mkDockerComposeContainer {
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directory = ./.;
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}
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