Fix logs in the SMTP container

core/postfix/Dockerfile

@@ -15,7 +15,7 @@ COPY start.py /
 RUN echo $VERSION >/version
 
 #EXPOSE 25/tcp 10025/tcp
-HEALTHCHECK --start-period=350s CMD /usr/sbin/postfix status
+HEALTHCHECK --start-period=30s CMD ! /usr/libexec/postfix/master -t
 
 VOLUME ["/queue"]
 

core/postfix/conf/main.cf

@@ -6,6 +6,7 @@
 mydomain = {{ DOMAIN }}
 myhostname = {{ HOSTNAMES.split(",")[0] }}
 myorigin = $mydomain
+maillog_file = /dev/stdout
 
 # Queue location
 queue_directory = /queue

core/postfix/conf/master.cf

@@ -52,6 +52,7 @@ discard   unix  -       -       n       -       -       discard
 lmtp      unix  -       -       n       -       -       lmtp
 anvil     unix  -       -       n       -       1       anvil
 scache    unix  -       -       n       -       1       scache
+postlog   unix-dgram n  -       n       -       1       postlogd
 
 {# Ensure that the rendered file ends with a newline #}
 {{- "\n" }}

core/postfix/start.py

@@ -11,7 +11,6 @@ from podop import run_server
 from socrate import system, conf
 
 system.set_env(log_filters=[
-    r'the Postfix mail system is running\: \d+$',
     r'(dis)?connect from localhost\[(\:\:1|127\.0\.0\.1)\]( quit=1 commands=1)?$',
     r'haproxy read\: short protocol header\: QUIT$',
     r'discarding EHLO keywords\: PIPELINING$',

towncrier/newsfragments/2793.bugfix

@@ -0,0 +1 @@
+The SMTP container wasn't logging things like it should