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Fleet or swarm

MOSTLY because docker swarm is not ready for scheduling.

SECOND because fleet cooperates with systemd giving a single solution for the timebeing

AND while docker and coreos work together there is some discourse. I'm trying to have a balance between rkt and docker so that if we have to select a winner that the amount of work is minimal.

ALSO Swarm has it's origins in a project called flynn. I used it for a while however it was only marginal.

FINALLY, I'm currently using fleet for the Z reporting and it seems to be working well

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Prometheus vs Bosun

In conclusion... while Bosun(B) is still not the ideal monitoring system neither is Prometheus(P).

TL;DR;

I am running Bosun in a Docker container hosted on CoreOS. Fleet service/unit files keep it running. However in once case I have experienced at least one severe crash as a result of a disk full condition. That it is implemented as part golang, java and python is an annoyance. The MIT license is about the only good thing.

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Weave vs Flannel

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In Weave your fleet file might have some of this:
[Service] . . . ExecStartPre=/opt/bin/weave run --net=host --name bob ncx/bob ExecStart=/usr/bin/docker attach bob
In sky + flannel it might look like:
[Service] . . . ExecStartPre=docker run -d --net=host --name bob ncx/bob ExecStartPre=etcdctl set /skydns/local/ncx/bob '{"host":"`docker inspect --format '{{ .NetworkSettings.IPAddress }}' bob`","port":8080}' ExecStart=/usr/bin/docker attach bob
I'd like it to look like this:
[Service] . . . ExecStartPre=skyrun --net=host --name bob ncx/bob ExecStart=/usr/bin/docker attach bob
That's the intent anyway. I'm not sure the exact commands will work and that's partly why we…