Re: Quota warning executable can not log to /dev/stdout

28 Oct 2017


      Thanks, I've tried it.
Unfortunately it didn't help. The error message stays the same.
Am 28.10.2017 um 11:43 schrieb Aki Tuomi:
...
Try adding
service quota-warning {
chroot =
}
It won't chroot it then, but I'm not sure if that has a huge security impact.
Aki
...
On October 28, 2017 at 12:13 PM Michael Härtl <haertl.mike@gmail.com> wrote:
I'm running dovecot 2.2.27 in a alpine based docker container and want
to log to /dev/stdout. I therefore added this setting:
  log_path = /dev/stdout
Logging works fine so far.
Now I've added a quota-warning script. With the log_path setting above
the script creates warnings like:
Oct 28 10:27:01 quota-warning: Error: Can't open log file /dev/stdout:
No such device or address
Oct 28 10:27:01 quota-warning: Fatal: master: service(quota-warning):
child 460 returned error 75
When I change log_path to something like /tmp/dovecot.log everything
works fine.
Dovecot itself is started via s6 with a run script like this:
#!/bin/sh
exec /usr/sbin/dovecot -F -c /etc/dovecot/dovecot.conf
What could cause this issue and how could I fix it?
For the record here's my doveconf -n output:
# 2.2.27 (c0f36b0): /etc/dovecot/dovecot.conf
# OS: Linux 4.4.27-x86_64-jb1 x86_64  ext4
auth_mechanisms = plain login
auth_verbose = yes
first_valid_uid = 100
log_path = /dev/stdout
mail_gid = dovecot
mail_home = /var/mail/domains/%d/%n
mail_location = maildir:/var/mail/domains/%d/%n
mail_max_userip_connections = 160
mail_plugins = " quota"
mail_privileged_group = dovecot
mail_uid = vmail
managesieve_notify_capability = mailto
managesieve_sieve_capability = fileinto reject envelope
encoded-character vacation subaddress comparator-i;ascii-numeric
relational regex imap4flags copy include variables body enotify
environment mailbox date index ihave duplicate mime foreverypart extracttext
namespace inbox {
inbox = yes
location =
mailbox Drafts {
auto = subscribe
special_use = \Drafts
}
mailbox Junk {
auto = subscribe
special_use = \Junk
}
mailbox Sent {
auto = subscribe
special_use = \Sent
}
mailbox "Sent Messages" {
special_use = \Sent
}
mailbox Trash {
auto = subscribe
special_use = \Trash
}
prefix =
separator = .
}
passdb {
args = /etc/dovecot/dovecot-mysql.conf.ext
driver = sql
}
plugin {
quota = maildir:User quota
quota_exceeded_message = Storage quota for user %u exceeded (Benutzer
%u hat sein Speichervolumen ueberschritten)
quota_grace = 10%%
quota_rule2 = Trash:storage=+100M
quota_status_nouser = DUNNO
quota_status_overquota = 552 5.2.2 Mailbox is full
quota_status_success = DUNNO
quota_warning = storage=85%% quota-warning 80 %u %d
}
protocols = imap lmtp sieve
service auth {
unix_listener /var/spool/postfix/private/auth {
group = postfix
mode = 0666
user = postfix
}
unix_listener auth-userdb {
mode = 0777
}
}
service lmtp {
unix_listener /var/spool/postfix/private/dovecot-lmtp {
group = postfix
mode = 0600
user = postfix
}
}
service quota-status {
client_limit = 1
executable = quota-status -p postfix
inet_listener {
port = 10001
}
}
service quota-warning {
executable = script /usr/local/bin/quota-warning.sh
group = dovecot
unix_listener quota-warning {
mode = 0666
user = dovecot
}
user = vmail
}
ssl_cert = </certs/fullchain.pem
ssl_key =  # hidden, use -P to show it
ssl_protocols = !SSLv2 !SSLv3
userdb {
args = /etc/dovecot/dovecot-mysql.conf.ext
driver = sql
}
protocol imap {
mail_plugins = " quota imap_quota"
}
protocol lmtp {
mail_plugins = " quota sieve"
}