Hi Francois,
Why is using an explicit unix socket problematic for you? For what it
does, that decision has always seemed sensible.
Matt
On Tue, Apr 16, 2019 at 7:04 PM Francois Lafont
<francois.lafont.1978@xxxxxxxxx> wrote:
>
> Hi @all,
>
> On 4/9/19 12:43 PM, Francois Lafont wrote:
>
> > I have tried this config:
> >
> > -----
> > rgw enable ops log = true
> > rgw ops log socket path = /tmp/opslog
> > rgw log http headers = http_x_forwarded_for
> > -----
> >
> > and I have logs in the socket /tmp/opslog like this:
> >
> > -----
> > {"bucket":"test1","time":"2019-04-09 09:41:18.188350Z","time_local":"2019-04-09 11:41:18.188350","remote_addr":"10.111.222.51","user":"flaf","operation":"GET","uri":"GET /?prefix=toto/&delimiter=%2F HTTP/1.1","http_status":"200","error_code":"","bytes_sent":832,"bytes_received":0,"object_size":0,"total_time":39,"user_agent":"DragonDisk 1.05 ( http://www.dragondisk.com )","referrer":"","http_x_headers":[{"HTTP_X_FORWARDED_FOR":"10.111.222.55"}]},
> > -----
> >
> > I can see the IP address of the client in the value of HTTP_X_FORWARDED_FOR, that's cool.
> >
> > But I don't understand why there is a specific socket to log that? I'm using radosgw in a Docker container (installed via ceph-ansible) and I have logs of the "radosgw" daemon in the "/var/log/syslog" file of my host (I'm using the Docker "syslog" log-driver).
> >
> > 1. Why is there a _separate_ log source for that? Indeed, in "/var/log/syslog" I have already some logs of civetweb. For instance:
> >
> > 2019-04-09 12:33:45.926 7f02e021c700 1 civetweb: 0x55876dc9c000: 10.111.222.51 - - [09/Apr/2019:12:33:45 +0200] "GET /?prefix=toto/&delimiter=%2F HTTP/1.1" 200 1014 - DragonDisk 1.05 ( http://www.dragondisk.com )
>
> The fact that radosgw uses a separate log source for "ops log" (ie a specific Unix socket) is still very mysterious for me.
>
>
> > 2. In my Docker container context, is it possible to put the logs above in the file "/var/log/syslog" of my host, in other words is it possible to make sure to log this in stdout of the daemon "radosgw"?
>
> It seems to me impossible to put ops log in the stdout of the "radosgw" process (or, if it's possible, I have not found). So I have made a workaround. I have set:
>
> rgw_ops_log_socket_path = /var/run/ceph/rgw-opslog.asok
>
> in my ceph.conf and I have created a daemon (via un systemd unit file) which runs this loop:
>
> while true;
> do
> netcat -U "/var/run/ceph/rgw-opslog.asok" | logger -t "rgwops" -p "local5.notice"
> done
>
> to retrieve logs in syslog. It's not very satisfying but it's works.
>
> --
> François (flaf)
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--
Matt Benjamin
Red Hat, Inc.
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Ann Arbor, Michigan 48103
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