[libvirt] [jenkins-ci PATCH] guests: disable sendmail on FreeBSD to speedup booting
You can notice it by looking for this message while booting: "Oct 23 08:31:19 libvirt-freebsd-10 sm-mta[667]: My unqualified host name (libvirt-freebsd-10) unknown; sleeping for retry" Signed-off-by: Pavel Hrdina <phrdina@redhat.com> --- guests/tasks/base.yml | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/guests/tasks/base.yml b/guests/tasks/base.yml index a71e66d..48455dd 100644 --- a/guests/tasks/base.yml +++ b/guests/tasks/base.yml @@ -118,6 +118,19 @@ hostname: name: '{{ inventory_hostname }}' +# On FreeBSD sendmail is enabled by default and it expects fully qualified +# hostname. By disabling sendmail we will avoid sendmail to trying to resolve +# the hostname while booting which takes several seconds. +- name: Disable sendmail + lineinfile: + path: /etc/rc.conf + create: yes + backup: yes + regexp: '^sendmail_enable.*' + line: 'sendmail_enable="NONE"' + when: + - os_name == 'FreeBSD' + - name: Configure ssh access for the root user authorized_key: user: root -- 2.13.6
On Mon, 2017-10-23 at 10:35 +0200, Pavel Hrdina wrote:
+- name: Disable sendmail + lineinfile: + path: /etc/rc.conf + create: yes + backup: yes + regexp: '^sendmail_enable.*' + line: 'sendmail_enable="NONE"' + when: + - os_name == 'FreeBSD'
According to rc.sendmail(8), setting sendmail_enable to NONE is deprecated: you're supposed to disable each part of sendmail separately, as outlined in [1]. Note that sshd is started right before sendmail: ... Performing sanity check on sshd configuration. Starting sshd. Starting sendmail_submit. Oct 23 14:11:43 libvirt-freebsd-11 sm-mta[664]: My unqualified... so the delay in starting sendmail is not affecting your ability to use the machine - unless you need to log in on the serial console, which you really shouldn't for regular operation anyway. All in all, I think we can leave things as they are. [1] https://www.freebsd.org/doc/handbook/mail-changingmta.html -- Andrea Bolognani / Red Hat / Virtualization
On Mon, Oct 23, 2017 at 04:16:05PM +0200, Andrea Bolognani wrote:
On Mon, 2017-10-23 at 10:35 +0200, Pavel Hrdina wrote:
+- name: Disable sendmail + lineinfile: + path: /etc/rc.conf + create: yes + backup: yes + regexp: '^sendmail_enable.*' + line: 'sendmail_enable="NONE"' + when: + - os_name == 'FreeBSD'
According to rc.sendmail(8), setting sendmail_enable to NONE is deprecated: you're supposed to disable each part of sendmail separately, as outlined in [1].
Note that sshd is started right before sendmail:
... Performing sanity check on sshd configuration. Starting sshd. Starting sendmail_submit. Oct 23 14:11:43 libvirt-freebsd-11 sm-mta[664]: My unqualified...
so the delay in starting sendmail is not affecting your ability to use the machine - unless you need to log in on the serial console, which you really shouldn't for regular operation anyway.
All in all, I think we can leave things as they are.
Yes, I noticed that sshd is started before sendmail, but I didn't know (properly checked) that setting it to "NONE" is deprecated. From the man page we would need to set 4 options to "NO" which is not worth it. Other possible solution would be to set hostname to $domname.local, that would make sendmail happy as well. Pavel
On Mon, 2017-10-23 at 16:52 +0200, Pavel Hrdina wrote:
Yes, I noticed that sshd is started before sendmail, but I didn't know (properly checked) that setting it to "NONE" is deprecated. From the man page we would need to set 4 options to "NO" which is not worth it.
Agreed.
Other possible solution would be to set hostname to $domname.local, that would make sendmail happy as well.
This is a much smaller change, so the effort / gain ratio seems reasonable. Personally I wouldn't bother, but if the console delay bugs you enough to write a patch I won't have a problem with it :) -- Andrea Bolognani / Red Hat / Virtualization
participants (2)
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Andrea Bolognani -
Pavel Hrdina