danmack/nix-alpine.org

## nix-alpine.org

      
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              nix-alpine.org
            
          
    NIX Package Manager Install on Alpine Linux

System Information


  alpine 3.17.1, 3.18, 3.19 and edge x86-64
  multiple linux kernels worked 6.1.8-lts w/zfs and 6.6.8-lts
  edge, testing apk repos enabled

Preparation

You may need these packages if not already installed:
apk add sudo
apk add shadow
apk add bash
apk add curl
apk add xz

  pkg sudo is needed; aliasing /usr/bin/doas does not work
  pkg shadow provides groupadd and related tools, needed by nix
    install script
  the install script might not behave with ash so install bash

Perform the sh-bang multi-user installation

sh <(curl -L https://nixos.org/nix/install) --daemon
# answer no to more info
# answer yes to sudo
# answer yes to proceed with multi-user installation
# yes to continue
# ... pray ...
# if successfull, acknowledge the reminder
nix rc service script

Alpine does not use systemd.  Copy this file to /etc/init.d/nix-daemon
  and make it executable.  I copied this script from the testing package
  in the alpine package repository.
#!/sbin/openrc-run
description="Nix multi-user support daemon"

command="/usr/sbin/nix-daemon"
command_background="yes"
pidfile="/run/$RC_SVCNAME.pid"
For some reason, the multi-user install does not install the
  nix-daemon binary in a system directory, instead it gets installed
  here:
/root/.nix-profile/bin/nix-daemon
I chose to copy this binary to /usr/sbin which seems to work.
Enable and start the service:
# run as root or sudo
chmod a+rx /etc/init.d/nix-daemon
cp /root/.nix-profile/bin/nix-daemon /usr/sbin
rc-update    add nix-daemon
rc-service nix-daemon start
Post install steps

At this point, you should make sure that your userid has been added to
  the nixbld group.  Also we need to open up the permissions on the
  nix-daemon socket so nixbld group members can communicate with the
  daemon.
Follow the instructions the script emits - run it as root the first
  time:
# nix installer should have emitted this text:
#   Alright! We're done!
#   Try it! Open a new terminal, and type:
#   nix-shell -p nix-info --run "nix-info -m"
The output should look something similar to the following:

  
    system: `”x86_64-linux”`
    host os: `Linux 6.1.8-0-lts, Alpine Linux, noversion, nobuild`
    multi-user?: `yes`
    sandbox: `yes`
    version: `nix-env (Nix) 2.13.1`
    channels(root): `”nixpkgs”`
    nixpkgs: `/root/.nix-defexpr/channels/nixpkgs`
  

Now, before we try running nix as non-root user, let’s add ourselves
  to the nixbld group and reboot.  This will ensure our userid is in the
  nixbld group and that all running shells have picked it up.  Rebooting
  after this will also test that our service starts correctly on a fresh
  boot.
sudo adduser YOURUSERID nixbld
reboot (or do a safe shutdown however you usually do it)
Non root user testing

Now, let’s try the first steps documentation from
  https://nixos.org/guides/ad-hoc-developer-environments.html as our
  default user.
$ hello
The program ‘hello’ is currently not installed.

$ nix-shell -p hello

[nix-shell:~]$ hello
Hello, world!

[nix-shell:~]$ exit
exit

$ hello
The program ‘hello’ is currently not installed.

Now we can try running a real application inside of a nix shell:
proteus:~$ nix-shell -p deno
this path will be fetched (24.28 MiB download, 80.64 MiB unpacked):
  /nix/store/kn6c4dkql7jhh2vzdja78bs3rs59hpb2-deno-1.29.4
copying path '/nix/store/kn6c4dkql7jhh2vzdja78bs3rs59hpb2-deno-1.29.4' from 'https://cache.nixos.org'...

[nix-shell:~]$ deno --version
deno 1.29.4 (release, x86_64-unknown-linux-gnu)
v8 10.9.194.5
typescript 4.9.4

[nix-shell:~]$ exit
the end