Re: [lxc-users] logging for applications in container
On 02/16/2018 08:38 PM, Tomasz Chmielewski wrote: > On 2018-02-17 02:20, Stepan Santalov wrote: >> Hello! >> >> Is there a way to log to host's machine syslog by applications, >> running in containers? >> I've googled but with no luck. > > rsyslog over TCP/UDP? It looks obvious in case all the applications support it. But they doesn't. > > > Tomasz Chmielewski > https://lxadm.com -- Stepan Santalov https://postgrespro.ru +7 495 150 0691 # 23 ___ lxc-users mailing list lxc-users@lists.linuxcontainers.org http://lists.linuxcontainers.org/listinfo/lxc-users
Re: [lxc-users] logging for applications in container
On 2018-02-17 02:20, Stepan Santalov wrote: Hello! Is there a way to log to host's machine syslog by applications, running in containers? I've googled but with no luck. rsyslog over TCP/UDP? Tomasz Chmielewski https://lxadm.com ___ lxc-users mailing list lxc-users@lists.linuxcontainers.org http://lists.linuxcontainers.org/listinfo/lxc-users
[lxc-users] logging for applications in container
Hello! Is there a way to log to host's machine syslog by applications, running in containers? I've googled but with no luck. -- Stepan Santalov https://postgrespro.ru +7 495 150 0691 # 23 ___ lxc-users mailing list lxc-users@lists.linuxcontainers.org http://lists.linuxcontainers.org/listinfo/lxc-users
Re: [lxc-users] Migrating a rootfs back-and-forth lxc 2.0 <=> 3.0
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Re: [lxc-users] Migrating a rootfs back-and-forth lxc 2.0 <=> 3.0
> Date: Thu, 15 Feb 2018 13:05:44 -0500 (EST) > From: Adrian Pepper > To: lxc-users@lists.linuxcontainers.org > Subject: [lxc-users] Migrating a rootfs back-and-forth lxc 2.0 <=> 3.0 > > Should one expect to encounter subtle (or perhaps not-so-subtle) > problems if one takes the rootfs of a simple container created under > one major version of lxc and uses it to replace the rootfs of a > container previously created under another major version? > (Replacing while the target is stopped, and then starting > the container after the replacement). No, that shouldn' cause any problems. > > Assume that due diligence was done to keep the hostname in the > filesystem was consistent with lxc.uts.name (or its equivalent > in the relevant version), etc. > > Or should one expect this to work seamlessly? (The question would be > whether there are hooks of some sort under the rootfs which might get > automatically migrated in one direction (presumably "forwards" to a > higher version), but not in the other direction, or possibly not in > either direction at all). > > Somewhat similarly, but conversely, I would assume that there is never > any situation where having the same rootfs used simultaneously by more > than one executing container would not be disastrous. (in my case just > a foreseeable possible accident, not something I have visions of exploiting). That is a bad idea yes. For example, with system container you'd have two init system thinking that they are in control of the whole rootfs and fstree. Christian ___ lxc-users mailing list lxc-users@lists.linuxcontainers.org http://lists.linuxcontainers.org/listinfo/lxc-users