Start postfix directly with stdout logging

core/postfix/Dockerfile

@@ -9,7 +9,7 @@ RUN pip3 install git+https://github.com/usrpro/MailuStart.git#egg=mailustart
 RUN pip3 install git+https://github.com/Nebukadneza/Podop.git@fix_py37
 # Image specific layers under this line
 
-RUN apk add --no-cache postfix postfix-pcre cyrus-sasl-plain rsyslog
+RUN apk add --no-cache postfix postfix-pcre cyrus-sasl-plain
 
 COPY conf /conf
 COPY start.py /start.py

core/postfix/conf/main.cf

@@ -2,6 +2,9 @@
 # General
 ###############
 
+# Logging configuration
+maillog_file = /dev/stdout
+
 # Main domain and hostname
 mydomain = {{ DOMAIN }}
 myhostname = {{ HOSTNAMES.split(",")[0] }}

core/postfix/conf/master.cf

@@ -33,3 +33,5 @@ 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
+

core/postfix/conf/rsyslog.conf

@@ -1,4 +0,0 @@
-$ModLoad imuxsock
-$template noTimestampFormat,"%syslogtag%%msg%\n"
-$ActionFileDefaultTemplate noTimestampFormat
-*.*;auth,authpriv.none /dev/stdout

core/postfix/start.py

@@ -48,12 +48,9 @@ for map_file in glob.glob("/overrides/*.map"):
     os.system("postmap {}".format(destination))
     os.remove(destination)
 
-convert("/conf/rsyslog.conf", "/etc/rsyslog.conf")
-
 # Run Podop and Postfix
 multiprocessing.Process(target=start_podop).start()
 if os.path.exists("/var/run/rsyslogd.pid"):
     os.remove("/var/run/rsyslogd.pid")
 os.system("/usr/libexec/postfix/post-install meta_directory=/etc/postfix create-missing")
-os.system("/usr/libexec/postfix/master &")
+os.system("postfix start-fg")
-os.execv("/usr/sbin/rsyslogd", ["rsyslogd", "-n"])