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/stdoutLogging 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 =