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From: John McCabe <john@johnmccabe.net>
Date: Fri, 29 Jan 2016 14:30:33 +0000
Message-ID: 
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Subject: Re: Brooklyn Daemon Solution
To: dev@brooklyn.apache.org
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[bumping so aleks can see the thread]

On Thu, 28 Jan 2016 at 16:41 Andrew Kennedy <
andrew.kennedy@cloudsoftcorp.com> wrote:

> Or what about running a Brooklyn Docker image as a systemd service!
>
> - http://container-solutions.com/running-docker-containers-with-systemd/
> - https://github.com/ibuildthecloud/systemd-docker
>
> Andrew.
>
> On Thu, 28 Jan 2016 at 16:34 Alex Heneveld <
> alex.heneveld@cloudsoftcorp.com>
> wrote:
>
> >
> > Hi Aleksandr-
> >
> > What's the advantage of a native daemon over just wrapping it as a linux
> > service script ?
> >
> > Best
> > Alex
> >
> >
> > On 28/01/2016 11:32, Aleksandr Vasilev wrote:
> > > Hello everyone!
> > >
> > > I spent last few days looking at the solution to run Brooklyn process
> as
> > a
> > > daemon and found two options:
> > > 1. Run daemon via Apache Commons Daemon (jsvc)
> > > 2. Write a custom daemon in C
> > >
> > > Both solutions has its own pros and cons, so let's look at what I think
> > > they are:
> > >
> > > JSVC:
> > > Pros:
> > > - Ready to use solution. Running a daemon via jsvc is very similar to
> > > running java application from the command line with similar arguments
> > > passed.
> > > - Builds as usual in Maven
> > >
> > > Cons:
> > > - Still requires you to write daemon code, which in my opinion kills
> the
> > > out-of-the-box usability
> > > - Has tons of bugs, including: not been able to find classes in
> > classpath,
> > > not been able to run by non-root users, not been able to run on several
> > > *nix systems (Mac OS, BSD)
> > > - The codebase hasn't changed since 2013 and seems abandoned
> > > - SVN repo often isn't accessible for some reason, right now the
> > webserver
> > > returns 503 error code:
> > > http://svn.apache.org/viewvc/commons/proper/daemon/trunk/
> > >
> > > Custom Daemon (written in C):
> > > Pros:
> > > - Cross-platform, runs on any *nix system supported by Brooklyn
> > > - Very little code to maintain
> > > - Independent from third-party solutions, requires only gcc to build
> > > - Easy to make LSB-compliant init scripts to control the daemon
> > >
> > > Cons:
> > > - Requires some overhead to build C code in Maven
> > >
> > > Having all these options considered, I propose writing daemon for
> Apache
> > > Brooklyn in C language and use gcc compiler to build it. It will
> require
> > > introducing some changes to Maven build process, but there are plenty
> of
> > > solutions for doing this, such as Maven NAR plugin, which is actively
> > > maintained:
> > > https://github.com/maven-nar/nar-maven-plugin
> > >
> > > Best Regards,
> > > Aleksandr Vasilev
> > > DevOps Engineer | Cloudsoft Corporation
> > >
> >
> > --
>
> Andrew Kennedy ; Founder clocker.io project ; @grkvlt ; Cloudsoft
>

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