Added rsyslog to enable container logging to stdout. Closes issue #1

Dockerfile

@@ -3,13 +3,16 @@ FROM centos:latest
 MAINTAINER Juan Luis Baptiste juan.baptiste@gmail.com
 
 RUN yum install -y epel-release && yum update -y && \
-    yum install -y cyrus-sasl cyrus-sasl-plain cyrus-sasl-md5 mailx \ 
+    yum install -y cyrus-sasl cyrus-sasl-plain cyrus-sasl-md5 mailx \
-    perl supervisor postfix
+    perl supervisor postfix rsyslog
 RUN sed -i -e "s/^nodaemon=false/nodaemon=true/" /etc/supervisord.conf
 RUN sed -i -e 's/inet_interfaces = localhost/inet_interfaces = all/g' /etc/postfix/main.cf
+
+COPY etc/*.conf /etc/
+COPY etc/rsyslog.d/* /etc/rsyslog.d
 COPY run.sh /
 RUN chmod +x /run.sh
-COPY etc/supervisord.d/postfix.ini /etc/supervisord.d/
+COPY etc/supervisord.d/*.ini /etc/supervisord.d/
 RUN newaliases
 
 EXPOSE 25

etc/rsyslog.conf

@@ -0,0 +1,90 @@
+# rsyslog configuration file
+
+# For more information see /usr/share/doc/rsyslog-*/rsyslog_conf.html
+# If you experience problems, see http://www.rsyslog.com/doc/troubleshoot.html
+
+#### MODULES ####
+
+# The imjournal module bellow is now used as a message source instead of imuxsock.
+$ModLoad imuxsock # provides support for local system logging (e.g. via logger command)
+#$ModLoad imklog # reads kernel messages (the same are read from journald)
+#$ModLoad immark  # provides --MARK-- message capability
+
+# Provides UDP syslog reception
+#$ModLoad imudp
+#$UDPServerRun 514
+
+# Provides TCP syslog reception
+#$ModLoad imtcp
+#$InputTCPServerRun 514
+
+
+#### GLOBAL DIRECTIVES ####
+
+# Where to place auxiliary files
+$WorkDirectory /var/lib/rsyslog
+
+# Use default timestamp format
+$ActionFileDefaultTemplate RSYSLOG_TraditionalFileFormat
+
+# File syncing capability is disabled by default. This feature is usually not required,
+# not useful and an extreme performance hit
+#$ActionFileEnableSync on
+
+# Include all config files in /etc/rsyslog.d/
+$IncludeConfig /etc/rsyslog.d/*.conf
+
+# Turn off message reception via local log socket;
+# local messages are retrieved through imjournal now.
+$OmitLocalLogging off
+
+# File to store the position in the journal
+#$IMJournalStateFile imjournal.state
+
+
+#### RULES ####
+
+# Log all kernel messages to the console.
+# Logging much else clutters up the screen.
+#kern.*                                                 /dev/console
+
+# Log anything (except mail) of level info or higher.
+# Don't log private authentication messages!
+*.info;mail.none;authpriv.none;cron.none                /var/log/messages
+
+# The authpriv file has restricted access.
+authpriv.*                                              /var/log/secure
+
+# Log all the mail messages in one place.
+mail.*                                                  -/var/log/maillog
+
+
+# Log cron stuff
+cron.*                                                  /var/log/cron
+
+# Everybody gets emergency messages
+*.emerg                                                 :omusrmsg:*
+
+# Save news errors of level crit and higher in a special file.
+uucp,news.crit                                          /var/log/spooler
+
+# Save boot messages also to boot.log
+local7.*                                                /var/log/boot.log
+
+
+# ### begin forwarding rule ###
+# The statement between the begin ... end define a SINGLE forwarding
+# rule. They belong together, do NOT split them. If you create multiple
+# forwarding rules, duplicate the whole block!
+# Remote Logging (we use TCP for reliable delivery)
+#
+# An on-disk queue is created for this action. If the remote host is
+# down, messages are spooled to disk and sent when it is up again.
+#$ActionQueueFileName fwdRule1 # unique name prefix for spool files
+#$ActionQueueMaxDiskSpace 1g   # 1gb space limit (use as much as possible)
+#$ActionQueueSaveOnShutdown on # save messages to disk on shutdown
+#$ActionQueueType LinkedList   # run asynchronously
+#$ActionResumeRetryCount -1    # infinite retries if host is down
+# remote host is: name/ip:port, e.g. 192.168.0.1:514, port optional
+#*.* @@remote-host:514
+# ### end of the forwarding rule ###

etc/rsyslog.d/listen.conf

@@ -0,0 +1 @@
+$SystemLogSocketName /dev/log

etc/supervisord.conf

@@ -0,0 +1,129 @@
+; Sample supervisor config file.
+
+[unix_http_server]
+file=/var/run/supervisor/supervisor.sock   ; (the path to the socket file)
+;chmod=0700                 ; sockef file mode (default 0700)
+;chown=nobody:nogroup       ; socket file uid:gid owner
+;username=user              ; (default is no username (open server))
+;password=123               ; (default is no password (open server))
+
+;[inet_http_server]         ; inet (TCP) server disabled by default
+;port=127.0.0.1:9001        ; (ip_address:port specifier, *:port for all iface)
+;username=user              ; (default is no username (open server))
+;password=123               ; (default is no password (open server))
+
+[supervisord]
+logfile=/var/log/supervisor/supervisord.log  ; (main log file;default $CWD/supervisord.log)
+logfile_maxbytes=50MB       ; (max main logfile bytes b4 rotation;default 50MB)
+logfile_backups=10          ; (num of main logfile rotation backups;default 10)
+loglevel=info               ; (log level;default info; others: debug,warn,trace)
+pidfile=/var/run/supervisord.pid ; (supervisord pidfile;default supervisord.pid)
+nodaemon=true              ; (start in foreground if true;default false)
+minfds=1024                 ; (min. avail startup file descriptors;default 1024)
+minprocs=200                ; (min. avail process descriptors;default 200)
+;umask=022                  ; (process file creation umask;default 022)
+;user=chrism                 ; (default is current user, required if root)
+;identifier=supervisor       ; (supervisord identifier, default is 'supervisor')
+;directory=/tmp              ; (default is not to cd during start)
+;nocleanup=true              ; (don't clean up tempfiles at start;default false)
+;childlogdir=/tmp            ; ('AUTO' child log dir, default $TEMP)
+;environment=KEY=value       ; (key value pairs to add to environment)
+;strip_ansi=false            ; (strip ansi escape codes in logs; def. false)
+
+; the below section must remain in the config file for RPC
+; (supervisorctl/web interface) to work, additional interfaces may be
+; added by defining them in separate rpcinterface: sections
+[rpcinterface:supervisor]
+supervisor.rpcinterface_factory = supervisor.rpcinterface:make_main_rpcinterface
+
+[supervisorctl]
+serverurl=unix:///var/run/supervisor/supervisor.sock ; use a unix:// URL  for a unix socket
+;serverurl=http://127.0.0.1:9001 ; use an http:// url to specify an inet socket
+;username=chris              ; should be same as http_username if set
+;password=123                ; should be same as http_password if set
+;prompt=mysupervisor         ; cmd line prompt (default "supervisor")
+;history_file=~/.sc_history  ; use readline history if available
+
+; The below sample program section shows all possible program subsection values,
+; create one or more 'real' program: sections to be able to control them under
+; supervisor.
+
+;[program:theprogramname]
+;command=/bin/cat              ; the program (relative uses PATH, can take args)
+;process_name=%(program_name)s ; process_name expr (default %(program_name)s)
+;numprocs=1                    ; number of processes copies to start (def 1)
+;directory=/tmp                ; directory to cwd to before exec (def no cwd)
+;umask=022                     ; umask for process (default None)
+;priority=999                  ; the relative start priority (default 999)
+;autostart=true                ; start at supervisord start (default: true)
+;autorestart=true              ; retstart at unexpected quit (default: true)
+;startsecs=10                  ; number of secs prog must stay running (def. 1)
+;startretries=3                ; max # of serial start failures (default 3)
+;exitcodes=0,2                 ; 'expected' exit codes for process (default 0,2)
+;stopsignal=QUIT               ; signal used to kill process (default TERM)
+;stopwaitsecs=10               ; max num secs to wait b4 SIGKILL (default 10)
+;user=chrism                   ; setuid to this UNIX account to run the program
+;redirect_stderr=true          ; redirect proc stderr to stdout (default false)
+;stdout_logfile=/a/path        ; stdout log path, NONE for none; default AUTO
+;stdout_logfile_maxbytes=1MB   ; max # logfile bytes b4 rotation (default 50MB)
+;stdout_logfile_backups=10     ; # of stdout logfile backups (default 10)
+;stdout_capture_maxbytes=1MB   ; number of bytes in 'capturemode' (default 0)
+;stdout_events_enabled=false   ; emit events on stdout writes (default false)
+;stderr_logfile=/a/path        ; stderr log path, NONE for none; default AUTO
+;stderr_logfile_maxbytes=1MB   ; max # logfile bytes b4 rotation (default 50MB)
+;stderr_logfile_backups=10     ; # of stderr logfile backups (default 10)
+;stderr_capture_maxbytes=1MB   ; number of bytes in 'capturemode' (default 0)
+;stderr_events_enabled=false   ; emit events on stderr writes (default false)
+;environment=A=1,B=2           ; process environment additions (def no adds)
+;serverurl=AUTO                ; override serverurl computation (childutils)
+
+; The below sample eventlistener section shows all possible
+; eventlistener subsection values, create one or more 'real'
+; eventlistener: sections to be able to handle event notifications
+; sent by supervisor.
+
+;[eventlistener:theeventlistenername]
+;command=/bin/eventlistener    ; the program (relative uses PATH, can take args)
+;process_name=%(program_name)s ; process_name expr (default %(program_name)s)
+;numprocs=1                    ; number of processes copies to start (def 1)
+;events=EVENT                  ; event notif. types to subscribe to (req'd)
+;buffer_size=10                ; event buffer queue size (default 10)
+;directory=/tmp                ; directory to cwd to before exec (def no cwd)
+;umask=022                     ; umask for process (default None)
+;priority=-1                   ; the relative start priority (default -1)
+;autostart=true                ; start at supervisord start (default: true)
+;autorestart=unexpected        ; restart at unexpected quit (default: unexpected)
+;startsecs=10                  ; number of secs prog must stay running (def. 1)
+;startretries=3                ; max # of serial start failures (default 3)
+;exitcodes=0,2                 ; 'expected' exit codes for process (default 0,2)
+;stopsignal=QUIT               ; signal used to kill process (default TERM)
+;stopwaitsecs=10               ; max num secs to wait b4 SIGKILL (default 10)
+;user=chrism                   ; setuid to this UNIX account to run the program
+;redirect_stderr=true          ; redirect proc stderr to stdout (default false)
+;stdout_logfile=/a/path        ; stdout log path, NONE for none; default AUTO
+;stdout_logfile_maxbytes=1MB   ; max # logfile bytes b4 rotation (default 50MB)
+;stdout_logfile_backups=10     ; # of stdout logfile backups (default 10)
+;stdout_events_enabled=false   ; emit events on stdout writes (default false)
+;stderr_logfile=/a/path        ; stderr log path, NONE for none; default AUTO
+;stderr_logfile_maxbytes=1MB   ; max # logfile bytes b4 rotation (default 50MB)
+;stderr_logfile_backups        ; # of stderr logfile backups (default 10)
+;stderr_events_enabled=false   ; emit events on stderr writes (default false)
+;environment=A=1,B=2           ; process environment additions
+;serverurl=AUTO                ; override serverurl computation (childutils)
+
+; The below sample group section shows all possible group values,
+; create one or more 'real' group: sections to create "heterogeneous"
+; process groups.
+
+;[group:thegroupname]
+;programs=progname1,progname2  ; each refers to 'x' in [program:x] definitions
+;priority=999                  ; the relative start priority (default 999)
+
+; The [include] section can just contain the "files" setting.  This
+; setting can list multiple files (separated by whitespace or
+; newlines).  It can also contain wildcards.  The filenames are
+; interpreted as relative to this file.  Included files *cannot*
+; include files themselves.
+
+[include]
+files = supervisord.d/*.ini

etc/supervisord.d/postfix.ini

@@ -1,7 +1,5 @@
 [program:postfix]
 process_name = master
-command=/usr/sbin/postfix -c /etc/postfix start
+command=/usr/sbin/postfix -v -v -c /etc/postfix start
-stdout_logfile=/var/log/supervisor/%(program_name)s.log
-stderr_logfile=/var/log/supervisor/%(program_name)s.log
 startsecs=0
 autorestart=false

etc/supervisord.d/readlog.ini

@@ -0,0 +1,4 @@
+[program:readlog]
+command=/usr/bin/tail -f /var/log/maillog
+stdout_logfile=/dev/fd/1
+stdout_logfile_maxbytes=0

etc/supervisord.d/rsyslog.ini

@@ -0,0 +1,2 @@
+[program:rsyslog]
+command=/usr/sbin/rsyslogd -n