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我刚开始学习nix// nixos。nixops我需要在远程主机上安装一个简单的 bash 脚本nixops。我不知道该怎么做。我有两个文件：

  1. just-deploy-bash-script.nix
{

  resources.sshKeyPairs.ssh-key = {};

  test-host = { config, lib, pkgs, ... }: {
    deployment.targetEnv = "digitalOcean";
    deployment.digitalOcean.region = "sgp1";
    deployment.digitalOcean.size = "s-2vcpu-4gb";


    environment.systemPackages =
    let
      my-package = pkgs.callPackage ./my-package.nix { inherit pkgs; };
    in [
      pkgs.tmux
      my-package
    ];

  };

}
  1. my-package.nix
{ pkgs ? import <nixpkgs> {}, ... }:

let
  pname = "my-package"; 
  version = "1.0.0";
  stdenv = pkgs.stdenv;
in
  stdenv.mkDerivation {

    inherit pname version;

    src = ./.;

    installPhase =
      let
        script = pkgs.writeShellScriptBin "my-test" ''
          echo This is my test script
        '';
      in
      ''
        mkdir $out;
        cp -r ${script} $out/
      '';

  }

我部署如下。我进入这两个文件所在的目录，然后依次执行两个命令：

nixops create -d test just-deploy-bash-script.nix
nixops deploy -d test

部署顺利通过并成功完成。但是当我登录到新创建的远程主机时，我发现tmux系统中存在标准集的包，并且my-package不存在：

nixops ssh -d test test-host
[root@test-host:~]# which tmux
/run/current-system/sw/bin/tmux

[root@test-host:~]# find /nix/store/ -iname tmux
/nix/store/hd1sgvb4pcllxj69gy3qa9qsns68arda-nixpkgs-20.03pre206749.5a3c1eda46e/nixpkgs/pkgs/tools/misc/tmux
/nix/store/609zdpfi5kpz2c7mbjcqjmpb4sd2y3j4-ncurses-6.0-20170902/share/terminfo/t/tmux
/nix/store/4cxkil2r3dzcf5x2phgwzbxwyvlk6i9k-system-path/share/bash-completion/completions/tmux
/nix/store/4cxkil2r3dzcf5x2phgwzbxwyvlk6i9k-system-path/bin/tmux
/nix/store/606ni2d9614sxkhnnnhr71zqphdam6jc-system-path/share/bash-completion/completions/tmux
/nix/store/606ni2d9614sxkhnnnhr71zqphdam6jc-system-path/bin/tmux
/nix/store/ddlx3x8xhaaj78xr0zasxhiy2m564m2s-nixos-17.09.3269.14f9ee66e63/nixos/pkgs/tools/misc/tmux
/nix/store/kvia4rwy9y4wis4v2kb9y758gj071p5v-ncurses-6.1-20190112/share/terminfo/t/tmux
/nix/store/c3m8qvmn2yxkgpfajjxbcnsgfrcinppl-tmux-2.9a/share/bash-completion/completions/tmux
/nix/store/c3m8qvmn2yxkgpfajjxbcnsgfrcinppl-tmux-2.9a/bin/tmux

[root@test-host:~]# which my-test
which: no my-test in (/root/bin:/run/wrappers/bin:/root/.nix-profile/bin:/etc/profiles/per-user/root/bin:/nix/var/nix/profiles/default/bin:/run/current-system/sw/bin)

[root@test-host:~]# find /nix/store/ -iname *my-test*

[root@test-host:~]#

帮助我弄清楚我的脚本有什么问题。欢迎任何指向此类任务实施的文档或示例的链接。

4

1 回答 1

2

shell 找不到您的脚本，因为它被复制到了错误的目录中。

这在构建后变得明显my-package.nix：

$ nix-build my-package.nix
$ ls result/
zh5bxljvpmda4mi4x0fviyavsa3r12cx-my-test

在这里，您可以看到存储路径中存储路径的基本名称。这是由以下行引起的：

cp -r ${script} $out/

将其更改为这样的内容应该可以解决该问题：

cp -r ${script}/* $out/
于 2019-12-30T14:26:07.353 回答