start-mailserver.sh split (#1820)

* splitting start-mailserver.sh

* refactoring part 2

* refactored setup-stack.sh
* stzarted adjusting target/bin/*.sh to use new usage format

* corrected lowercase-uppercase test error

* better handling of .bashrc variable export

* linting tests and fix for default assignements

* last stylistic changes and rebase

target/scripts/startup/daemons-stack.sh

@@ -0,0 +1,154 @@
+#! /bin/bash
+
+function start_daemons
+{
+  _notify 'tasklog' 'Starting daemons & mail server'
+  for FUNC in "${DAEMONS_START[@]}"
+  do
+    ${FUNC} || _defunc
+  done
+}
+
+function _start_daemons_cron
+{
+  _notify 'task' 'Starting cron'
+  supervisorctl start cron
+}
+
+function _start_daemons_rsyslog
+{
+  _notify 'task' 'Starting rsyslog'
+  supervisorctl start rsyslog
+}
+
+function _start_daemons_saslauthd
+{
+  _notify 'task' 'Starting saslauthd'
+  supervisorctl start "saslauthd_${SASLAUTHD_MECHANISMS}"
+}
+
+function _start_daemons_fail2ban
+{
+  _notify 'task' 'Starting fail2ban'
+  touch /var/log/auth.log
+
+  # delete fail2ban.sock that probably was left here after container restart
+  if [[ -e /var/run/fail2ban/fail2ban.sock ]]
+  then
+    rm /var/run/fail2ban/fail2ban.sock
+  fi
+
+  supervisorctl start fail2ban
+}
+
+function _start_daemons_opendkim
+{
+  _notify 'task' 'Starting opendkim'
+  supervisorctl start opendkim
+}
+
+function _start_daemons_opendmarc
+{
+  _notify 'task' 'Starting opendmarc'
+  supervisorctl start opendmarc
+}
+
+function _start_daemons_postsrsd
+{
+  _notify 'task' 'Starting postsrsd'
+  supervisorctl start postsrsd
+}
+
+function _start_daemons_postfix
+{
+  _notify 'task' 'Starting postfix'
+  supervisorctl start postfix
+}
+
+function _start_daemons_dovecot
+{
+  _notify 'task' 'Starting dovecot services'
+
+  if [[ ${ENABLE_POP3} -eq 1 ]]
+  then
+    _notify 'task' 'Starting pop3 services'
+    mv /etc/dovecot/protocols.d/pop3d.protocol.disab \
+      /etc/dovecot/protocols.d/pop3d.protocol
+  fi
+
+  if [[ -f /tmp/docker-mailserver/dovecot.cf ]]
+  then
+    cp /tmp/docker-mailserver/dovecot.cf /etc/dovecot/local.conf
+  fi
+
+  supervisorctl start dovecot
+}
+
+function _start_daemons_fetchmail
+{
+  _notify 'task' 'Preparing fetchmail config'
+  /usr/local/bin/setup-fetchmail
+
+  if [[ ${FETCHMAIL_PARALLEL} -eq 1 ]]
+  then
+    mkdir /etc/fetchmailrc.d/
+    /usr/local/bin/fetchmailrc_split
+
+    local COUNTER=0
+    for RC in /etc/fetchmailrc.d/fetchmail-*.rc
+    do
+      COUNTER=$(( COUNTER + 1 ))
+      cat >"/etc/supervisor/conf.d/fetchmail-${COUNTER}.conf" << EOF
+[program:fetchmail-${COUNTER}]
+startsecs=0
+autostart=false
+autorestart=true
+stdout_logfile=/var/log/supervisor/%(program_name)s.log
+stderr_logfile=/var/log/supervisor/%(program_name)s.log
+user=fetchmail
+command=/usr/bin/fetchmail -f ${RC} -v --nodetach --daemon %(ENV_FETCHMAIL_POLL)s -i /var/lib/fetchmail/.fetchmail-UIDL-cache --pidfile /var/run/fetchmail/%(program_name)s.pid
+EOF
+      chmod 700 "${RC}"
+      chown fetchmail:root "${RC}"
+    done
+
+    supervisorctl reread
+    supervisorctl update
+
+    COUNTER=0
+    for _ in /etc/fetchmailrc.d/fetchmail-*.rc
+    do
+      COUNTER=$(( COUNTER + 1 ))
+      _notify 'task' "Starting fetchmail instance ${COUNTER}"
+      supervisorctl start "fetchmail-${COUNTER}"
+    done
+  else
+    _notify 'task' 'Starting fetchmail'
+    supervisorctl start fetchmail
+  fi
+}
+
+function _start_daemons_clamav
+{
+  _notify 'task' 'Starting clamav'
+  supervisorctl start clamav
+}
+
+function _start_daemons_postgrey
+{
+  _notify 'task' 'Starting postgrey'
+  rm -f /var/run/postgrey/postgrey.pid
+  supervisorctl start postgrey
+}
+
+function _start_daemons_amavis
+{
+  _notify 'task' 'Starting amavis'
+  supervisorctl start amavis
+}
+
+function _start_changedetector
+{
+  _notify 'task' 'Starting changedetector'
+  supervisorctl start changedetector
+}