macOS command line to create user to run a service

gistfile1.txt

# Use these to see the current list of users and groups, to select unique user and groud ids.

dscacheutil -q user | awk 'BEGIN { ORS="" } /name/ { print $2 " " } /uid/ { print $2 "\n" }' | sort -unk 2
dscacheutil -q group | awk 'BEGIN { ORS="" } /name/ { print $2 " " } /gid/ { print $2 "\n" }' | sort -unk 2

# I chose 400 for both uid and gid based on what's in use on my own machine.
# DO NOT use 400 without checking it's available first.

sudo dscl . -create /Groups/_sync_gateway
sudo dscl . -create /Groups/_sync_gateway PrimaryGroupID 400

sudo dscl . -create /Users/_sync_gateway UniqueID 400
sudo dscl . -create /Users/_sync_gateway PrimaryGroupID 400
sudo dscl . -create /Users/_sync_gateway UserShell /usr/bin/false
sudo dscl . -create /Users/_sync_gateway NFSHomeDirectory /Users/sync_gateway

sudo mkdir /Users/sync_gateway
sudo chown _sync_gateway:_sync_gateway /Users/sync_gateway

# Run the Sync Gateway macOS install script, with the option to assign the user to run under.
sudo ./sync_gateway_service_install.sh --runas=_sync_gateway

# Check Sync Gateway is running
# Look for, e.g., active count = 1, state = running
sudo launchctl print system/com.couchbase.mobile.sync_gateway