You got closer but an issue with permissions remains (you can't write logs in /var/log as a consul user).
What about something like this?

 exec su -s /bin/sh -c 'GOMAXPROCS=`nproc` exec "$0" "$@"' consul -- /opt/consul/bin/consul agent > {{ consul_log_file }} 2>&1

I have tested this out and it works as expected on debian/ubuntu (with upstart) but I am not sure about rhel/centos.

You can.../var/log/consul is touched and chown to consul:consul during
install I believe - that is the owner after install in any case.
The previous code worked the same way in this regard and I've used my
branch for successful deployments already on Ubuntu.

On Monday, November 14, 2016, Jure Žvelc [email protected] wrote:

You got closer but an issue with permissions remains (you can't write logs
in /var/log as a consul user).
What about something like this?

exec su -s /bin/sh -c 'GOMAXPROCS=nproc exec "$0" "$@"' consul -- /opt/consul/bin/consul agent > {{ consul_log_file }} 2>&1

I have tested this out and it works as expected on debian/ubuntu (with
upstart) but I am not sure about rhel/centos.

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I just checked and I can confirm owner/g is consul:consul so it seems it is something else... Can you check if stopping/restarting upstart service works as expected? If I try to restart it I get stop: Unknown instance:. So the issue is that service doesn't stop and restarting fails due to address already in use error.
Please check following log file: /var/log/upstart/consul.log
With your script I get following entries:
/opt/consul/bin/consul: 1: /opt/consul/bin/consul: cannot create 1: Permission denied

What about this:
exec su -s /bin/sh -c 'GOMAXPROCS=nprocexec "$0" "$@" > /var/log/consul 2>&1' consul -- /opt/consul/bin/consul agent

This also works for me.

The only difference is it would totally wipe out the log each restart since
you are not appending. We could touch and chown the log before we su to be
sure in case permissions are a problem in some context.

Restarts are a different issue but I don't think it worked under sudo
either.

On Tuesday, November 15, 2016, Jure Žvelc [email protected] wrote:

What about this:
exec su -s /bin/sh -c 'GOMAXPROCS=nprocexec "$0" "$@" > /var/log/consul
2>&1' consul -- /opt/consul/bin/consul agent

This also works for me.

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