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Merge pull request #9639 from awakesecurity/mz/darwin-UID-override

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installer: allow overriding of NIX_FIRST_BUILD_ID on darwin
(cherry picked from commit e85fd92816571ea00abafa3929298d0e091bcb9b)
Change-Id: Ifffc3fedd740079345c205f54c62c76053e24846
This commit is contained in:
eldritch horrors 2024-03-04 07:26:19 +01:00
parent 6622abb463
commit 1d6ae6f9ff
3 changed files with 23 additions and 6 deletions
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6
scripts/install-darwin-multi-user.sh
View file

@ -3,11 +3,13 @@
set -eu
set -o pipefail
# System specific settings
export NIX_FIRST_BUILD_UID="${NIX_FIRST_BUILD_UID:-301}"
export NIX_BUILD_USER_NAME_TEMPLATE="_nixbld%d"
readonly NIX_DAEMON_DEST=/Library/LaunchDaemons/org.nixos.nix-daemon.plist
# create by default; set 0 to DIY, use a symlink, etc.
readonly NIX_VOLUME_CREATE=${NIX_VOLUME_CREATE:-1} # now default
NIX_FIRST_BUILD_UID="301"
NIX_BUILD_USER_NAME_TEMPLATE="_nixbld%d"
# caution: may update times on / if not run as normal non-root user
read_only_root() {

19
scripts/install-multi-user.sh
View file

@ -25,9 +25,9 @@ readonly RED='\033[31m'
readonly NIX_USER_COUNT=${NIX_USER_COUNT:-32}
readonly NIX_BUILD_GROUP_ID="${NIX_BUILD_GROUP_ID:-30000}"
readonly NIX_BUILD_GROUP_NAME="nixbld"
# darwin installer needs to override these
NIX_FIRST_BUILD_UID="${NIX_FIRST_BUILD_UID:-30001}"
NIX_BUILD_USER_NAME_TEMPLATE="nixbld%d"
# each system specific installer must set these:
# NIX_FIRST_BUILD_UID
# NIX_BUILD_USER_NAME_TEMPLATE
# Please don't change this. We don't support it, because the
# default shell profile that comes with Nix doesn't support it.
readonly NIX_ROOT="/nix"
@ -699,6 +699,12 @@ EOF
fi
}
check_required_system_specific_settings() {
if [ -z "${NIX_FIRST_BUILD_UID+x}" ] || [ -z "${NIX_BUILD_USER_NAME_TEMPLATE+x}" ]; then
failure "Internal error: System specific installer for $(uname) ($1) does not export required settings."
fi
}
welcome_to_nix() {
local -r NIX_UID_RANGES="${NIX_FIRST_BUILD_UID}..$((NIX_FIRST_BUILD_UID + NIX_USER_COUNT - 1))"
local -r RANGE_TEXT=$(echo -ne "${BLUE}(uids [${NIX_UID_RANGES}])${ESC}")
@ -718,7 +724,9 @@ manager. This will happen in a few stages:
if you are ready to continue.
3. Create the system users ${RANGE_TEXT} and groups ${GROUP_TEXT}
that the Nix daemon uses to run builds.
that the Nix daemon uses to run builds. To create system users
in a different range, exit and run this tool again with
NIX_FIRST_BUILD_UID set.
4. Perform the basic installation of the Nix files daemon.
@ -960,13 +968,16 @@ main() {
if is_os_darwin; then
# shellcheck source=./install-darwin-multi-user.sh
. "$EXTRACTED_NIX_PATH/install-darwin-multi-user.sh"
check_required_system_specific_settings "install-darwin-multi-user.sh"
elif is_os_linux; then
# shellcheck source=./install-systemd-multi-user.sh
. "$EXTRACTED_NIX_PATH/install-systemd-multi-user.sh" # most of this works on non-systemd distros also
check_required_system_specific_settings "install-systemd-multi-user.sh"
else
failure "Sorry, I don't know what to do on $(uname)"
fi
welcome_to_nix
if ! is_root; then

4
scripts/install-systemd-multi-user.sh
View file

@ -3,6 +3,10 @@
set -eu
set -o pipefail
# System specific settings
export NIX_FIRST_BUILD_UID="${NIX_FIRST_BUILD_UID:-30001}"
export NIX_BUILD_USER_NAME_TEMPLATE="nixbld%d"
readonly SERVICE_SRC=/lib/systemd/system/nix-daemon.service
readonly SERVICE_DEST=/etc/systemd/system/nix-daemon.service