The problem as per the Phusion blog article is that the runit and possibly daemo...

The problem as per the Phusion blog article is that the runit and possibly daemontools equivalent commands don't set all env vars: HOME, USER, GID & UID, it only calls setgid() & setuid() IIRC. (envuidgid only sets UID and GID[0]) This causes breakage for lots of apps that end up inheriting root's env instead. :(

Here's the go version I wrote, so there's no need for dep on Python/Ruby/etc on the target system:

    setuser USERNAME COMMAND [args...]

    # how to build it
    go get   github.com/steakknife/my_init/setuser
    go build github.com/steakknife/my_init/setuser
    # creates setuser exe here

[0] FR issue submitted as https://github.com/bruceg/daemontools-encore/issues/18