Re: [atomic-devel] Has anyone considered packaging dumb-init or tini for use in Fedora/CentOS/RHEL?

[Clayton Coleman <ccoleman redhat com>]

On Tue, Mar 7, 2017 at 9:38 AM, Muayyad AlSadi <alsadi gmail com> wrote:

I've packaged dumb-init, it's in copr

And there was a package review for official repos

That's great - couldn't find it during the search last night, good to know it exists.

 

> Anyone using these today?

yes, I use it along with oneway < https://github.com/muayyad-alsadi/oneway/releases/

> What does dumb-init or tini get me that systemd doesn't?

simply dumb init does not thing, it's just exec a single process (the docker way which is single process per container)

so instead of start.sh we use dumb-init start.sh

it's not intended to do what sysvinit / systemd / upstart do

it just fork then exec it's argument, the parent process just handle defunct processes

> I am skeptical of any "resource" argument against systemd

it does not do any management (the dumb part of it's name)

> I think multiple init systems will just generate more technical questions 

please give it a chance, not because we need another init system, but because it's NOT an init system.

it just run a single process (look at supervisord which is in the official repo, is more close to be an init system than dumb-init)

> Doesn't work in Kubernetes today.

I do use it with k8s! 

I was referring to docker run --init