Support --no-modify-profile for daemon installations #4457

aneeshusa · 2021-01-17T23:44:59Z

Unlike the single user install which edits user-specific files in $HOME
the daemon installer only edits global shell startup files.
As some systems have non-standard locations for these global files
(e.g. usage of /etc/zsh/zshenv instead of /etc/zshenv),
this allows folks to pre-configure relevant shell startup files
before they run the regular installer.

Personally, I don't edit the shell (i.e. bash/zsh) specific files,
but create a symlink in /etc/profile.d directly to $PROFILE_NIX_FILE
(instead of a file sourcing it).
I also don't need any of the backup functionality.

Fixes #4369.

aneeshusa · 2021-01-17T23:46:33Z

TODOs before I unmark as draft:

Test a regular install in Vagrant (no --no-modify-profile) and confirm everything still works
Test an install in Vagrant with --no-modify-profile where I manually set up /etc/profile.d before running the installer and confirm things still work

Unlike the single user install which edits user-specific files in $HOME the daemon installer only edits global shell startup files. As some systems have non-standard locations for these global files (e.g. usage of `/etc/zsh/zshenv` instead of /etc/zshenv), this allows folks to pre-configure relevant shell startup files before they run the regular installer. Personally, I don't edit the shell (i.e. bash/zsh) specific files, but create a symlink in `/etc/profile.d` directly to $PROFILE_NIX_FILE (instead of a file sourcing it). I also don't need any of the backup functionality.

aneeshusa · 2021-01-18T22:14:15Z

Tested locally with the 2 situations from the TODO, as well as another one with --no-modify-profile but no extra setup to show the profile files aren't modified.

Test Script

#!/usr/bin/env bash

set -euo pipefail

cat >./Vagrantfile <<EOF
Vagrant.configure("2") do |config|
  config.vm.define "fedora31" do |fedora31|
    fedora31.vm.box = "bento/fedora-31"
  end
  config.vm.synced_folder "../tmp-nix-installer-tarball", "/nix-installer"
end
EOF

echo '> Building tarball'
nix-build --no-out-link -A hydraJobs.binaryTarball.x86_64-linux 2>/dev/null

rm -rf ../tmp-nix-installer-tarball && mkdir -p ../tmp-nix-installer-tarball
tar -xf "$(nix-build --no-out-link -A hydraJobs.binaryTarball.x86_64-linux)"/*.tar.xz -C ../tmp-nix-installer-tarball --strip-components=1

echo '> Normal'
vagrant destroy --force
vagrant up
vagrant ssh -- /nix-installer/install --daemon --no-channel-add --daemon-user-count 3 </dev/null
vagrant ssh -- 'set -x; ls /etc/profile.d; sudo grep -r "End Nix" /etc; env | grep -i nix; which -a nix; nix --experimental-features nix-command store ping' || true
# Cannot run again due to existing `.backup-before-nix` copies of global shell startup files


echo '> With --no-modify-profile'
vagrant destroy --force
vagrant up
vagrant ssh -- /nix-installer/install --daemon --no-channel-add --daemon-user-count 3 --no-modify-profile </dev/null
vagrant ssh -- 'set -x; ls /etc/profile.d; sudo grep -r "End Nix" /etc; env | grep -i nix; which -a nix; nix --experimental-features nix-command store ping' || true
vagrant ssh -- ALLOW_PREEXISTING_INSTALLATION=true /nix-installer/install --daemon --no-channel-add --daemon-user-count 3 --no-modify-profile </dev/null
vagrant ssh -- 'set -x; ls /etc/profile.d; sudo grep -r "End Nix" /etc; env | grep -i nix; which -a nix; nix --experimental-features nix-command store ping' || true

echo '> With --no-modify-profile, pre-creating /etc/profile/nix.sh'
vagrant destroy --force
vagrant up
vagrant ssh -- 'sudo ln -s /nix/var/nix/profiles/default/etc/profile.d/nix-daemon.sh /etc/profile.d/' || true
vagrant ssh -- /nix-installer/install --daemon --no-channel-add --daemon-user-count 3 --no-modify-profile </dev/null
vagrant ssh -- 'set -x; ls /etc/profile.d; sudo grep -r "End Nix" /etc; env | grep -i nix; which -a nix; nix --experimental-features nix-command store ping' || true
vagrant ssh -- ALLOW_PREEXISTING_INSTALLATION=true /nix-installer/install --daemon --no-channel-add --daemon-user-count 3 --no-modify-profile </dev/null
vagrant ssh -- 'set -x; ls /etc/profile.d; sudo grep -r "End Nix" /etc; env | grep -i nix; which -a nix; nix --experimental-features nix-command store ping' || true

Test output

> Building tarball
/nix/store/4gn4c4dii84hv2sj1y44z9r2jrb23sx2-nix-binary-tarball-2.4pre19700101_0a346b7
> Normal
==> fedora31: Forcing shutdown of VM...
==> fedora31: Destroying VM and associated drives...
Bringing machine 'fedora31' up with 'virtualbox' provider...
==> fedora31: Importing base box 'bento/fedora-31'...
Progress: 10%Progress: 20%Progress: 30%Progress: 40%Progress: 50%Progress: 60%Progress: 70%Progress: 80%Progress: 90%==> fedora31: Matching MAC address for NAT networking...
==> fedora31: Checking if box 'bento/fedora-31' version '202010.22.0' is up to date...
==> fedora31: Setting the name of the VM: nix_fedora31_1611007601488_56727
==> fedora31: Fixed port collision for 22 => 2222. Now on port 2200.
==> fedora31: Clearing any previously set network interfaces...
==> fedora31: Preparing network interfaces based on configuration...
    fedora31: Adapter 1: nat
==> fedora31: Forwarding ports...
    fedora31: 22 (guest) => 2200 (host) (adapter 1)
==> fedora31: Booting VM...
==> fedora31: Waiting for machine to boot. This may take a few minutes...
    fedora31: SSH address: 127.0.0.1:2200
    fedora31: SSH username: vagrant
    fedora31: SSH auth method: private key
    fedora31: 
    fedora31: Vagrant insecure key detected. Vagrant will automatically replace
    fedora31: this with a newly generated keypair for better security.
    fedora31: 
    fedora31: Inserting generated public key within guest...
    fedora31: Removing insecure key from the guest if it's present...
    fedora31: Key inserted! Disconnecting and reconnecting using new SSH key...
==> fedora31: Machine booted and ready!
==> fedora31: Checking for guest additions in VM...
==> fedora31: Mounting shared folders...
    fedora31: /vagrant => /home/aneesh/workspace/nix
    fedora31: /nix-installer => /home/aneesh/workspace/tmp-nix-installer-tarball
Note: a multi-user installation is possible. See https://nixos.org/nix/manual/#sect-multi-user-installation
Switching to the Multi-user Installer
Welcome to the Multi-User Nix Installation

This installation tool will set up your computer with the Nix package
manager. This will happen in a few stages:

- Make sure your computer doesn't already have Nix. If it does, I
  will show you instructions on how to clean up your old one.

- Show you what we are going to install and where. Then we will ask
  if you are ready to continue.

- Create the system users and groups that the Nix daemon uses to run
  builds.

- Perform the basic installation of the Nix files daemon.

- Configure your shell to import special Nix Profile files, so you
  can use Nix.

- Start the Nix daemon.

Would you like to see a more detailed list of what we will do?
No TTY, assuming you would say yes :)

We will:

 - make sure your computer doesn't already have Nix files
   (if it does, I will tell you how to clean them up.)
 - create local users (see the list above for the users we'll make)
 - create a local group (nixbld)
 - install Nix in to /nix
 - create a configuration file in /etc/nix
 - set up the "default profile" by creating some Nix-related files in
   /root
 - back up /etc/bashrc to /etc/bashrc.backup-before-nix
 - update /etc/bashrc to include some Nix configuration
 - load and start a service (at /etc/systemd/system/nix-daemon.service
   and /etc/systemd/system/nix-daemon.socket) for nix-daemon

Ready to continue?
No TTY, assuming you would say yes :)

---- let's talk about sudo -----------------------------------------------------
This script is going to call sudo a lot. Normally, it would show you
exactly what commands it is running and why. However, the script is
run in a headless fashion, like this:

  $ curl -L https://nixos.org/nix/install | sh

or maybe in a CI pipeline. Because of that, we're going to skip the
verbose output in the interest of brevity.

If you would like to
see the output, try like this:

  $ curl -L -o install-nix https://nixos.org/nix/install
  $ sh ./install-nix


---- Nix config report ---------------------------------------------------------
        Temp Dir:	/tmp/tmp.PucEI0rBUl
        Nix Root:	/nix
     Build Users:	3
  Build Group ID:	30000
Build Group Name:	nixbld

build users:
    Username:	UID
     nixbld1:	30001
     nixbld2:	30002
     nixbld3:	30003

Ready to continue?
No TTY, assuming you would say yes :)

~~> Setting up the build group nixbld
            Created:	Yes

~~> Setting up the build user nixbld1
           Created:	Yes
            Hidden:	Yes
    Home Directory:	/var/empty
usermod: no changes
              Note:	Nix build user 1
   Logins Disabled:	Yes
  Member of nixbld:	Yes
    PrimaryGroupID:	30000

~~> Setting up the build user nixbld2
           Created:	Yes
            Hidden:	Yes
    Home Directory:	/var/empty
usermod: no changes
              Note:	Nix build user 2
   Logins Disabled:	Yes
  Member of nixbld:	Yes
    PrimaryGroupID:	30000

~~> Setting up the build user nixbld3
           Created:	Yes
            Hidden:	Yes
    Home Directory:	/var/empty
usermod: no changes
              Note:	Nix build user 3
   Logins Disabled:	Yes
  Member of nixbld:	Yes
    PrimaryGroupID:	30000
mkdir: created directory '/nix'
mkdir: created directory '/nix/var'
mkdir: created directory '/nix/var/log'
mkdir: created directory '/nix/var/log/nix'
mkdir: created directory '/nix/var/log/nix/drvs'
mkdir: created directory '/nix/var/nix'
mkdir: created directory '/nix/var/nix/db'
mkdir: created directory '/nix/var/nix/gcroots'
mkdir: created directory '/nix/var/nix/profiles'
mkdir: created directory '/nix/var/nix/temproots'
mkdir: created directory '/nix/var/nix/userpool'
mkdir: created directory '/nix/var/nix/gcroots/per-user'
mkdir: created directory '/nix/var/nix/profiles/per-user'
mkdir: created directory '/nix/store'
mkdir: created directory '/etc/nix'
      Alright! We have our first nix at /nix/store/28jm9hb07j6gxcs8qrnlmba16xk9qild-nix-2.4pre19700101_0a346b7
      Just finished getting the nix database ready.

# Nix
if [ -e '/nix/var/nix/profiles/default/etc/profile.d/nix-daemon.sh' ]; then
  . '/nix/var/nix/profiles/default/etc/profile.d/nix-daemon.sh'
fi
# End Nix


# Nix
if [ -e '/nix/var/nix/profiles/default/etc/profile.d/nix-daemon.sh' ]; then
  . '/nix/var/nix/profiles/default/etc/profile.d/nix-daemon.sh'
fi
# End Nix


# Nix
if [ -e '/nix/var/nix/profiles/default/etc/profile.d/nix-daemon.sh' ]; then
  . '/nix/var/nix/profiles/default/etc/profile.d/nix-daemon.sh'
fi
# End Nix

installing 'nix-2.4pre19700101_0a346b7'
building '/nix/store/30rqq919h91y2vqqiqmcyn44iqvaxgq6-user-environment.drv'...
installing 'nss-cacert-3.56'
building '/nix/store/knzb7v8rj2n5rld7gqm1922c8jl671r7-user-environment.drv'...
Created symlink /etc/systemd/system/nix-daemon.service â /nix/var/nix/profiles/default/lib/systemd/system/nix-daemon.service.
Created symlink /etc/systemd/system/sockets.target.wants/nix-daemon.socket â /nix/var/nix/profiles/default/lib/systemd/system/nix-daemon.socket.
Created symlink /etc/systemd/system/nix-daemon.socket â /nix/var/nix/profiles/default/lib/systemd/system/nix-daemon.socket.
Alright! We're done!

Before Nix will work in your existing shells, you'll need to close
them and open them again. Other than that, you should be ready to go.

Try it! Open a new terminal, and type:

  $ nix-shell -p nix-info --run "nix-info -m"

Thank you for using this installer. If you have any feedback, don't
hesitate:

We'd love to help if you need it.

If you can, open an issue at https://github.com/nixos/nix/issues

Or feel free to contact the team,
 - on IRC #nixos on irc.freenode.net
 - on twitter @nixos_org
+ ls /etc/profile.d
colorgrep.csh
colorgrep.sh
colorls.csh
colorls.sh
colorxzgrep.csh
colorxzgrep.sh
colorzgrep.csh
colorzgrep.sh
csh.local
gawk.csh
gawk.sh
lang.csh
lang.sh
less.csh
less.sh
nix.sh
sh.local
which2.csh
which2.sh
+ sudo grep -r 'End Nix' /etc
/etc/bashrc:# End Nix
/etc/profile.d/nix.sh:# End Nix
/etc/zshenv:# End Nix
+ grep -i nix
+ env
NIX_PROFILES=/nix/var/nix/profiles/default /home/vagrant/.nix-profile
NIX_SSL_CERT_FILE=/etc/ssl/certs/ca-bundle.crt
PATH=/home/vagrant/.local/bin:/home/vagrant/bin:/home/vagrant/.nix-profile/bin:/nix/var/nix/profiles/default/bin:/usr/local/bin:/usr/bin:/usr/local/sbin:/usr/sbin
DBUS_SESSION_BUS_ADDRESS=unix:path=/run/user/1000/bus
+ which -a nix
/nix/var/nix/profiles/default/bin/nix
+ nix --experimental-features nix-command store ping
> With --no-modify-profile
==> fedora31: Forcing shutdown of VM...
==> fedora31: Destroying VM and associated drives...
Bringing machine 'fedora31' up with 'virtualbox' provider...
==> fedora31: Importing base box 'bento/fedora-31'...
Progress: 10%Progress: 20%Progress: 90%==> fedora31: Matching MAC address for NAT networking...
==> fedora31: Checking if box 'bento/fedora-31' version '202010.22.0' is up to date...
==> fedora31: Setting the name of the VM: nix_fedora31_1611007643750_97655
==> fedora31: Fixed port collision for 22 => 2222. Now on port 2200.
==> fedora31: Clearing any previously set network interfaces...
==> fedora31: Preparing network interfaces based on configuration...
    fedora31: Adapter 1: nat
==> fedora31: Forwarding ports...
    fedora31: 22 (guest) => 2200 (host) (adapter 1)
==> fedora31: Booting VM...
==> fedora31: Waiting for machine to boot. This may take a few minutes...
    fedora31: SSH address: 127.0.0.1:2200
    fedora31: SSH username: vagrant
    fedora31: SSH auth method: private key
    fedora31: 
    fedora31: Vagrant insecure key detected. Vagrant will automatically replace
    fedora31: this with a newly generated keypair for better security.
    fedora31: 
    fedora31: Inserting generated public key within guest...
    fedora31: Removing insecure key from the guest if it's present...
    fedora31: Key inserted! Disconnecting and reconnecting using new SSH key...
==> fedora31: Machine booted and ready!
==> fedora31: Checking for guest additions in VM...
==> fedora31: Mounting shared folders...
    fedora31: /vagrant => /home/aneesh/workspace/nix
    fedora31: /nix-installer => /home/aneesh/workspace/tmp-nix-installer-tarball
Note: a multi-user installation is possible. See https://nixos.org/nix/manual/#sect-multi-user-installation
Switching to the Multi-user Installer
Welcome to the Multi-User Nix Installation

This installation tool will set up your computer with the Nix package
manager. This will happen in a few stages:

- Make sure your computer doesn't already have Nix. If it does, I
  will show you instructions on how to clean up your old one.

- Show you what we are going to install and where. Then we will ask
  if you are ready to continue.

- Create the system users and groups that the Nix daemon uses to run
  builds.

- Perform the basic installation of the Nix files daemon.

- Start the Nix daemon.

Would you like to see a more detailed list of what we will do?
No TTY, assuming you would say yes :)

We will:

 - make sure your computer doesn't already have Nix files
   (if it does, I will tell you how to clean them up.)
 - create local users (see the list above for the users we'll make)
 - create a local group (nixbld)
 - install Nix in to /nix
 - create a configuration file in /etc/nix
 - load and start a service (at /etc/systemd/system/nix-daemon.service
   and /etc/systemd/system/nix-daemon.socket) for nix-daemon

Ready to continue?
No TTY, assuming you would say yes :)

---- let's talk about sudo -----------------------------------------------------
This script is going to call sudo a lot. Normally, it would show you
exactly what commands it is running and why. However, the script is
run in a headless fashion, like this:

  $ curl -L https://nixos.org/nix/install | sh

or maybe in a CI pipeline. Because of that, we're going to skip the
verbose output in the interest of brevity.

If you would like to
see the output, try like this:

  $ curl -L -o install-nix https://nixos.org/nix/install
  $ sh ./install-nix


---- Nix config report ---------------------------------------------------------
        Temp Dir:	/tmp/tmp.IkN15Rh83y
        Nix Root:	/nix
     Build Users:	3
  Build Group ID:	30000
Build Group Name:	nixbld

build users:
    Username:	UID
     nixbld1:	30001
     nixbld2:	30002
     nixbld3:	30003

Ready to continue?
No TTY, assuming you would say yes :)

~~> Setting up the build group nixbld
            Created:	Yes

~~> Setting up the build user nixbld1
           Created:	Yes
            Hidden:	Yes
    Home Directory:	/var/empty
usermod: no changes
              Note:	Nix build user 1
   Logins Disabled:	Yes
  Member of nixbld:	Yes
    PrimaryGroupID:	30000

~~> Setting up the build user nixbld2
           Created:	Yes
            Hidden:	Yes
    Home Directory:	/var/empty
usermod: no changes
              Note:	Nix build user 2
   Logins Disabled:	Yes
  Member of nixbld:	Yes
    PrimaryGroupID:	30000

~~> Setting up the build user nixbld3
           Created:	Yes
            Hidden:	Yes
    Home Directory:	/var/empty
usermod: no changes
              Note:	Nix build user 3
   Logins Disabled:	Yes
  Member of nixbld:	Yes
    PrimaryGroupID:	30000
mkdir: created directory '/nix'
mkdir: created directory '/nix/var'
mkdir: created directory '/nix/var/log'
mkdir: created directory '/nix/var/log/nix'
mkdir: created directory '/nix/var/log/nix/drvs'
mkdir: created directory '/nix/var/nix'
mkdir: created directory '/nix/var/nix/db'
mkdir: created directory '/nix/var/nix/gcroots'
mkdir: created directory '/nix/var/nix/profiles'
mkdir: created directory '/nix/var/nix/temproots'
mkdir: created directory '/nix/var/nix/userpool'
mkdir: created directory '/nix/var/nix/gcroots/per-user'
mkdir: created directory '/nix/var/nix/profiles/per-user'
mkdir: created directory '/nix/store'
mkdir: created directory '/etc/nix'
      Alright! We have our first nix at /nix/store/28jm9hb07j6gxcs8qrnlmba16xk9qild-nix-2.4pre19700101_0a346b7
      Just finished getting the nix database ready.
installing 'nix-2.4pre19700101_0a346b7'
building '/nix/store/30rqq919h91y2vqqiqmcyn44iqvaxgq6-user-environment.drv'...
installing 'nss-cacert-3.56'
building '/nix/store/knzb7v8rj2n5rld7gqm1922c8jl671r7-user-environment.drv'...
Created symlink /etc/systemd/system/nix-daemon.service â /nix/var/nix/profiles/default/lib/systemd/system/nix-daemon.service.
Created symlink /etc/systemd/system/sockets.target.wants/nix-daemon.socket â /nix/var/nix/profiles/default/lib/systemd/system/nix-daemon.socket.
Created symlink /etc/systemd/system/nix-daemon.socket â /nix/var/nix/profiles/default/lib/systemd/system/nix-daemon.socket.
Alright! We're done!

Before Nix will work in your existing shells, you'll need to close
them and open them again. Other than that, you should be ready to go.

Try it! Open a new terminal, and type:

  $ nix-shell -p nix-info --run "nix-info -m"

Thank you for using this installer. If you have any feedback, don't
hesitate:

We'd love to help if you need it.

If you can, open an issue at https://github.com/nixos/nix/issues

Or feel free to contact the team,
 - on IRC #nixos on irc.freenode.net
 - on twitter @nixos_org
+ ls /etc/profile.d
colorgrep.csh
colorgrep.sh
colorls.csh
colorls.sh
colorxzgrep.csh
colorxzgrep.sh
colorzgrep.csh
colorzgrep.sh
csh.local
gawk.csh
gawk.sh
lang.csh
lang.sh
less.csh
less.sh
sh.local
which2.csh
which2.sh
+ sudo grep -r 'End Nix' /etc
+ grep -i nix
+ env
DBUS_SESSION_BUS_ADDRESS=unix:path=/run/user/1000/bus
+ which -a nix
which: no nix in (/home/vagrant/.local/bin:/home/vagrant/bin:/usr/local/bin:/usr/bin:/usr/local/sbin:/usr/sbin)
+ nix --experimental-features nix-command store ping
bash: nix: command not found
Note: a multi-user installation is possible. See https://nixos.org/nix/manual/#sect-multi-user-installation
Switching to the Multi-user Installer
Welcome to the Multi-User Nix Installation

This installation tool will set up your computer with the Nix package
manager. This will happen in a few stages:

- Make sure your computer doesn't already have Nix. If it does, I
  will show you instructions on how to clean up your old one.

- Show you what we are going to install and where. Then we will ask
  if you are ready to continue.

- Create the system users and groups that the Nix daemon uses to run
  builds.

- Perform the basic installation of the Nix files daemon.

- Start the Nix daemon.

Would you like to see a more detailed list of what we will do?
No TTY, assuming you would say yes :)

We will:

 - make sure your computer doesn't already have Nix files
   (if it does, I will tell you how to clean them up.)
 - create local users (see the list above for the users we'll make)
 - create a local group (nixbld)
 - install Nix in to /nix
 - create a configuration file in /etc/nix
 - load and start a service (at /etc/systemd/system/nix-daemon.service
   and /etc/systemd/system/nix-daemon.socket) for nix-daemon

Ready to continue?
No TTY, assuming you would say yes :)

---- let's talk about sudo -----------------------------------------------------
This script is going to call sudo a lot. Normally, it would show you
exactly what commands it is running and why. However, the script is
run in a headless fashion, like this:

  $ curl -L https://nixos.org/nix/install | sh

or maybe in a CI pipeline. Because of that, we're going to skip the
verbose output in the interest of brevity.

If you would like to
see the output, try like this:

  $ curl -L -o install-nix https://nixos.org/nix/install
  $ sh ./install-nix


---- Nix config report ---------------------------------------------------------
        Temp Dir:	/tmp/tmp.jO3CVDrOtw
        Nix Root:	/nix
     Build Users:	3
  Build Group ID:	30000
Build Group Name:	nixbld
Preexisting Install:	Allowed

build users:
    Username:	UID
     nixbld1:	30001
     nixbld2:	30002
     nixbld3:	30003

Ready to continue?
No TTY, assuming you would say yes :)

~~> Setting up the build group nixbld
            Exists:	Yes

~~> Setting up the build user nixbld1
            Exists:	Yes
            Hidden:	Yes
    Home Directory:	/var/empty
usermod: no changes
              Note:	Nix build user 1
   Logins Disabled:	Yes
  Member of nixbld:	Yes
    PrimaryGroupID:	30000

~~> Setting up the build user nixbld2
            Exists:	Yes
            Hidden:	Yes
    Home Directory:	/var/empty
usermod: no changes
              Note:	Nix build user 2
   Logins Disabled:	Yes
  Member of nixbld:	Yes
    PrimaryGroupID:	30000

~~> Setting up the build user nixbld3
            Exists:	Yes
            Hidden:	Yes
    Home Directory:	/var/empty
usermod: no changes
              Note:	Nix build user 3
   Logins Disabled:	Yes
  Member of nixbld:	Yes
    PrimaryGroupID:	30000
      Alright! We have our first nix at /nix/store/28jm9hb07j6gxcs8qrnlmba16xk9qild-nix-2.4pre19700101_0a346b7
      Just finished getting the nix database ready.
replacing old 'nix-2.4pre19700101_0a346b7'
installing 'nix-2.4pre19700101_0a346b7'
building '/nix/store/hdwywpngms7gnwlgrjf6hxs0ldp56h9i-user-environment.drv'...
replacing old 'nss-cacert-3.56'
installing 'nss-cacert-3.56'
Alright! We're done!

Before Nix will work in your existing shells, you'll need to close
them and open them again. Other than that, you should be ready to go.

Try it! Open a new terminal, and type:

  $ nix-shell -p nix-info --run "nix-info -m"

Thank you for using this installer. If you have any feedback, don't
hesitate:

We'd love to help if you need it.

If you can, open an issue at https://github.com/nixos/nix/issues

Or feel free to contact the team,
 - on IRC #nixos on irc.freenode.net
 - on twitter @nixos_org
+ ls /etc/profile.d
colorgrep.csh
colorgrep.sh
colorls.csh
colorls.sh
colorxzgrep.csh
colorxzgrep.sh
colorzgrep.csh
colorzgrep.sh
csh.local
gawk.csh
gawk.sh
lang.csh
lang.sh
less.csh
less.sh
sh.local
which2.csh
which2.sh
+ sudo grep -r 'End Nix' /etc
+ grep -i nix
+ env
DBUS_SESSION_BUS_ADDRESS=unix:path=/run/user/1000/bus
+ which -a nix
which: no nix in (/home/vagrant/.local/bin:/home/vagrant/bin:/usr/local/bin:/usr/bin:/usr/local/sbin:/usr/sbin)
+ nix --experimental-features nix-command store ping
bash: nix: command not found
> With --no-modify-profile, pre-creating /etc/profile/nix.sh
==> fedora31: Forcing shutdown of VM...
==> fedora31: Destroying VM and associated drives...
Bringing machine 'fedora31' up with 'virtualbox' provider...
==> fedora31: Importing base box 'bento/fedora-31'...
Progress: 10%Progress: 20%Progress: 90%==> fedora31: Matching MAC address for NAT networking...
==> fedora31: Checking if box 'bento/fedora-31' version '202010.22.0' is up to date...
==> fedora31: Setting the name of the VM: nix_fedora31_1611007692639_22520
==> fedora31: Fixed port collision for 22 => 2222. Now on port 2200.
==> fedora31: Clearing any previously set network interfaces...
==> fedora31: Preparing network interfaces based on configuration...
    fedora31: Adapter 1: nat
==> fedora31: Forwarding ports...
    fedora31: 22 (guest) => 2200 (host) (adapter 1)
==> fedora31: Booting VM...
==> fedora31: Waiting for machine to boot. This may take a few minutes...
    fedora31: SSH address: 127.0.0.1:2200
    fedora31: SSH username: vagrant
    fedora31: SSH auth method: private key
    fedora31: 
    fedora31: Vagrant insecure key detected. Vagrant will automatically replace
    fedora31: this with a newly generated keypair for better security.
    fedora31: 
    fedora31: Inserting generated public key within guest...
    fedora31: Removing insecure key from the guest if it's present...
    fedora31: Key inserted! Disconnecting and reconnecting using new SSH key...
==> fedora31: Machine booted and ready!
==> fedora31: Checking for guest additions in VM...
==> fedora31: Mounting shared folders...
    fedora31: /vagrant => /home/aneesh/workspace/nix
    fedora31: /nix-installer => /home/aneesh/workspace/tmp-nix-installer-tarball
Note: a multi-user installation is possible. See https://nixos.org/nix/manual/#sect-multi-user-installation
Switching to the Multi-user Installer
Welcome to the Multi-User Nix Installation

This installation tool will set up your computer with the Nix package
manager. This will happen in a few stages:

- Make sure your computer doesn't already have Nix. If it does, I
  will show you instructions on how to clean up your old one.

- Show you what we are going to install and where. Then we will ask
  if you are ready to continue.

- Create the system users and groups that the Nix daemon uses to run
  builds.

- Perform the basic installation of the Nix files daemon.

- Start the Nix daemon.

Would you like to see a more detailed list of what we will do?
No TTY, assuming you would say yes :)

We will:

 - make sure your computer doesn't already have Nix files
   (if it does, I will tell you how to clean them up.)
 - create local users (see the list above for the users we'll make)
 - create a local group (nixbld)
 - install Nix in to /nix
 - create a configuration file in /etc/nix
 - load and start a service (at /etc/systemd/system/nix-daemon.service
   and /etc/systemd/system/nix-daemon.socket) for nix-daemon

Ready to continue?
No TTY, assuming you would say yes :)

---- let's talk about sudo -----------------------------------------------------
This script is going to call sudo a lot. Normally, it would show you
exactly what commands it is running and why. However, the script is
run in a headless fashion, like this:

  $ curl -L https://nixos.org/nix/install | sh

or maybe in a CI pipeline. Because of that, we're going to skip the
verbose output in the interest of brevity.

If you would like to
see the output, try like this:

  $ curl -L -o install-nix https://nixos.org/nix/install
  $ sh ./install-nix


---- Nix config report ---------------------------------------------------------
        Temp Dir:	/tmp/tmp.XwFRD3hcip
        Nix Root:	/nix
     Build Users:	3
  Build Group ID:	30000
Build Group Name:	nixbld

build users:
    Username:	UID
     nixbld1:	30001
     nixbld2:	30002
     nixbld3:	30003

Ready to continue?
No TTY, assuming you would say yes :)

~~> Setting up the build group nixbld
            Created:	Yes

~~> Setting up the build user nixbld1
           Created:	Yes
            Hidden:	Yes
    Home Directory:	/var/empty
usermod: no changes
              Note:	Nix build user 1
   Logins Disabled:	Yes
  Member of nixbld:	Yes
    PrimaryGroupID:	30000

~~> Setting up the build user nixbld2
           Created:	Yes
            Hidden:	Yes
    Home Directory:	/var/empty
usermod: no changes
              Note:	Nix build user 2
   Logins Disabled:	Yes
  Member of nixbld:	Yes
    PrimaryGroupID:	30000

~~> Setting up the build user nixbld3
           Created:	Yes
            Hidden:	Yes
    Home Directory:	/var/empty
usermod: no changes
              Note:	Nix build user 3
   Logins Disabled:	Yes
  Member of nixbld:	Yes
    PrimaryGroupID:	30000
mkdir: created directory '/nix'
mkdir: created directory '/nix/var'
mkdir: created directory '/nix/var/log'
mkdir: created directory '/nix/var/log/nix'
mkdir: created directory '/nix/var/log/nix/drvs'
mkdir: created directory '/nix/var/nix'
mkdir: created directory '/nix/var/nix/db'
mkdir: created directory '/nix/var/nix/gcroots'
mkdir: created directory '/nix/var/nix/profiles'
mkdir: created directory '/nix/var/nix/temproots'
mkdir: created directory '/nix/var/nix/userpool'
mkdir: created directory '/nix/var/nix/gcroots/per-user'
mkdir: created directory '/nix/var/nix/profiles/per-user'
mkdir: created directory '/nix/store'
mkdir: created directory '/etc/nix'
      Alright! We have our first nix at /nix/store/28jm9hb07j6gxcs8qrnlmba16xk9qild-nix-2.4pre19700101_0a346b7
      Just finished getting the nix database ready.
installing 'nix-2.4pre19700101_0a346b7'
building '/nix/store/30rqq919h91y2vqqiqmcyn44iqvaxgq6-user-environment.drv'...
installing 'nss-cacert-3.56'
building '/nix/store/knzb7v8rj2n5rld7gqm1922c8jl671r7-user-environment.drv'...
Created symlink /etc/systemd/system/nix-daemon.service â /nix/var/nix/profiles/default/lib/systemd/system/nix-daemon.service.
Created symlink /etc/systemd/system/sockets.target.wants/nix-daemon.socket â /nix/var/nix/profiles/default/lib/systemd/system/nix-daemon.socket.
Created symlink /etc/systemd/system/nix-daemon.socket â /nix/var/nix/profiles/default/lib/systemd/system/nix-daemon.socket.
Alright! We're done!

Before Nix will work in your existing shells, you'll need to close
them and open them again. Other than that, you should be ready to go.

Try it! Open a new terminal, and type:

  $ nix-shell -p nix-info --run "nix-info -m"

Thank you for using this installer. If you have any feedback, don't
hesitate:

We'd love to help if you need it.

If you can, open an issue at https://github.com/nixos/nix/issues

Or feel free to contact the team,
 - on IRC #nixos on irc.freenode.net
 - on twitter @nixos_org
+ ls /etc/profile.d
colorgrep.csh
colorgrep.sh
colorls.csh
colorls.sh
colorxzgrep.csh
colorxzgrep.sh
colorzgrep.csh
colorzgrep.sh
csh.local
gawk.csh
gawk.sh
lang.csh
lang.sh
less.csh
less.sh
nix-daemon.sh
sh.local
which2.csh
which2.sh
+ sudo grep -r 'End Nix' /etc
+ grep -i nix
+ env
NIX_PROFILES=/nix/var/nix/profiles/default /home/vagrant/.nix-profile
NIX_SSL_CERT_FILE=/etc/ssl/certs/ca-bundle.crt
PATH=/home/vagrant/.local/bin:/home/vagrant/bin:/home/vagrant/.nix-profile/bin:/nix/var/nix/profiles/default/bin:/usr/local/bin:/usr/bin:/usr/local/sbin:/usr/sbin
DBUS_SESSION_BUS_ADDRESS=unix:path=/run/user/1000/bus
+ which -a nix
/nix/var/nix/profiles/default/bin/nix
+ nix --experimental-features nix-command store ping
Note: a multi-user installation is possible. See https://nixos.org/nix/manual/#sect-multi-user-installation
Switching to the Multi-user Installer
Welcome to the Multi-User Nix Installation

This installation tool will set up your computer with the Nix package
manager. This will happen in a few stages:

- Make sure your computer doesn't already have Nix. If it does, I
  will show you instructions on how to clean up your old one.

- Show you what we are going to install and where. Then we will ask
  if you are ready to continue.

- Create the system users and groups that the Nix daemon uses to run
  builds.

- Perform the basic installation of the Nix files daemon.

- Start the Nix daemon.

Would you like to see a more detailed list of what we will do?
No TTY, assuming you would say yes :)

We will:

 - make sure your computer doesn't already have Nix files
   (if it does, I will tell you how to clean them up.)
 - create local users (see the list above for the users we'll make)
 - create a local group (nixbld)
 - install Nix in to /nix
 - create a configuration file in /etc/nix
 - load and start a service (at /etc/systemd/system/nix-daemon.service
   and /etc/systemd/system/nix-daemon.socket) for nix-daemon

Ready to continue?
No TTY, assuming you would say yes :)

---- let's talk about sudo -----------------------------------------------------
This script is going to call sudo a lot. Normally, it would show you
exactly what commands it is running and why. However, the script is
run in a headless fashion, like this:

  $ curl -L https://nixos.org/nix/install | sh

or maybe in a CI pipeline. Because of that, we're going to skip the
verbose output in the interest of brevity.

If you would like to
see the output, try like this:

  $ curl -L -o install-nix https://nixos.org/nix/install
  $ sh ./install-nix


---- warning! ------------------------------------------------------------------
Nix already appears to be installed. This installer may run into issues.
If an error occurs, try manually uninstalling, then rerunning this script.


Uninstalling nix:
1. Delete the systemd service and socket units

  sudo systemctl stop nix-daemon.socket
  sudo systemctl stop nix-daemon.service
  sudo systemctl disable nix-daemon.socket
  sudo systemctl disable nix-daemon.service
  sudo systemctl daemon-reload
2. Delete the files Nix added to your system:

  sudo rm -rf /etc/nix /nix /root/.nix-profile /root/.nix-defexpr /root/.nix-channels /home/vagrant/.nix-profile /home/vagrant/.nix-defexpr /home/vagrant/.nix-channels

and that is it.


---- Nix config report ---------------------------------------------------------
        Temp Dir:	/tmp/tmp.JHYFth8bQQ
        Nix Root:	/nix
     Build Users:	3
  Build Group ID:	30000
Build Group Name:	nixbld
Preexisting Install:	Allowed

build users:
    Username:	UID
     nixbld1:	30001
     nixbld2:	30002
     nixbld3:	30003

Ready to continue?
No TTY, assuming you would say yes :)

~~> Setting up the build group nixbld
            Exists:	Yes

~~> Setting up the build user nixbld1
            Exists:	Yes
            Hidden:	Yes
    Home Directory:	/var/empty
usermod: no changes
              Note:	Nix build user 1
   Logins Disabled:	Yes
  Member of nixbld:	Yes
    PrimaryGroupID:	30000

~~> Setting up the build user nixbld2
            Exists:	Yes
            Hidden:	Yes
    Home Directory:	/var/empty
usermod: no changes
              Note:	Nix build user 2
   Logins Disabled:	Yes
  Member of nixbld:	Yes
    PrimaryGroupID:	30000

~~> Setting up the build user nixbld3
            Exists:	Yes
            Hidden:	Yes
    Home Directory:	/var/empty
usermod: no changes
              Note:	Nix build user 3
   Logins Disabled:	Yes
  Member of nixbld:	Yes
    PrimaryGroupID:	30000
      Alright! We have our first nix at /nix/store/28jm9hb07j6gxcs8qrnlmba16xk9qild-nix-2.4pre19700101_0a346b7
      Just finished getting the nix database ready.
replacing old 'nix-2.4pre19700101_0a346b7'
installing 'nix-2.4pre19700101_0a346b7'
building '/nix/store/hdwywpngms7gnwlgrjf6hxs0ldp56h9i-user-environment.drv'...
Alright! We're done!

Before Nix will work in your existing shells, you'll need to close
them and open them again. Other than that, you should be ready to go.

Try it! Open a new terminal, and type:

  $ nix-shell -p nix-info --run "nix-info -m"

Thank you for using this installer. If you have any feedback, don't
hesitate:

We'd love to help if you need it.

If you can, open an issue at https://github.com/nixos/nix/issues

Or feel free to contact the team,
 - on IRC #nixos on irc.freenode.net
 - on twitter @nixos_org
+ ls /etc/profile.d
colorgrep.csh
colorgrep.sh
colorls.csh
colorls.sh
colorxzgrep.csh
colorxzgrep.sh
colorzgrep.csh
colorzgrep.sh
csh.local
gawk.csh
gawk.sh
lang.csh
lang.sh
less.csh
less.sh
nix-daemon.sh
sh.local
which2.csh
which2.sh
+ sudo grep -r 'End Nix' /etc
+ grep -i nix
+ env
NIX_PROFILES=/nix/var/nix/profiles/default /home/vagrant/.nix-profile
NIX_SSL_CERT_FILE=/etc/ssl/certs/ca-bundle.crt
PATH=/home/vagrant/.local/bin:/home/vagrant/bin:/home/vagrant/.nix-profile/bin:/nix/var/nix/profiles/default/bin:/usr/local/bin:/usr/bin:/usr/local/sbin:/usr/sbin
DBUS_SESSION_BUS_ADDRESS=unix:path=/run/user/1000/bus
+ which -a nix
/nix/var/nix/profiles/default/bin/nix
+ nix --experimental-features nix-command store ping

aneeshusa · 2021-01-18T22:16:52Z

Let me know if there's a better way to test this and/or if I should check in the test script - I couldn't find any existing tests for the installer.

aneeshusa · 2021-01-18T22:37:31Z

Also, let me know if I should update any release notes (or website documentation?). I didn't see any existing installer docs detailing all the flags to update, and https://github.com/NixOS/nix/blob/master/doc/manual/src/contributing/contributing.md is empty / https://nixos.org/guides/contributing.html doesn't mention if release notes should be updated or not.

stale · 2021-07-19T18:23:30Z

I marked this as stale due to inactivity. → More info

Ericson2314 · 2023-06-22T23:18:40Z

Does this help make the installer more ideompotent?

edolstra added installer feature labels Jan 18, 2021

aneeshusa force-pushed the support-no-modify-profile-for-daemon-installs branch from 00bbb13 to 7cb3bcf Compare January 18, 2021 21:40

aneeshusa force-pushed the support-no-modify-profile-for-daemon-installs branch from 7cb3bcf to 0a346b7 Compare January 18, 2021 21:41

aneeshusa marked this pull request as ready for review January 18, 2021 22:14

stale bot added the stale label Jul 19, 2021

stale bot removed the stale label Jun 22, 2023

edolstra self-requested a review as a code owner November 12, 2024 19:47

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Support --no-modify-profile for daemon installations #4457

Support --no-modify-profile for daemon installations #4457

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Ericson2314 commented Jun 22, 2023

Support --no-modify-profile for daemon installations #4457

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Support --no-modify-profile for daemon installations #4457

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