housekeeping

.dockerignore

@@ -1,2 +1,4 @@
 .github
+.git
+
 test/

CONTRIBUTING.md

@@ -58,10 +58,8 @@ When refactoring, writing or altering scripts, that is Shell and Bash scripts, i
 When writing a script, provide the version and the script's task. Please use [semantic versioning][semver].
 
 ``` BASH
-#!/usr/bin/env bash
+#! /bin/bash
 
-# version  0.1.0
-#
 # <TASK DESCRIPTION> -> cut this off
 # to make it not longer than approx.
 # 80 cols.

Makefile

@@ -4,23 +4,20 @@ NAME = tvial/docker-mailserver:testing
 VCS_REF := $(shell git rev-parse --short HEAD)
 VCS_VERSION := $(shell git describe --tags --contains --always)
 
-SLEEP = 15s
-
 all: build backup generate-accounts tests clean
 no-build: backup generate-accounts tests clean
 complete_test: lint build generate-accounts tests
 
 build:
-	docker build \
+	docker build -t $(NAME) . \
 		--build-arg VCS_REF=$(VCS_REF) \
 		--build-arg VCS_VERSION=$(VCS_VERSION) \
-		-t $(NAME) .
 
 backup:
 # if backup directories exist, clean hasn't been called, therefore
 # we shouldn't overwrite it. It still contains the original content.
-	@ if [[ ! -d config.bak ]]; then cp -rp config config.bak; fi
+	@ [[ ! -d config.bak ]] && cp -rp config config.bak; fi
-	@ if [[ ! -d testconfig.bak ]]; then cp -rp test/config testconfig.bak; fi
+	@ [[ ! -d testconfig.bak ]] && cp -rp test/config testconfig.bak; fi
 
 generate-accounts:
 	@ docker run --rm -e MAIL_USER=user1@localhost.localdomain -e MAIL_PASS=mypassword -t $(NAME) /bin/sh -c 'echo "$$MAIL_USER|$$(doveadm pw -s SHA512-CRYPT -u $$MAIL_USER -p $$MAIL_PASS)"' > test/config/postfix-accounts.cf
@@ -28,25 +25,18 @@ generate-accounts:
 	@ echo "# this is a test comment, please don't delete me :'(" >> test/config/postfix-accounts.cf
 	@ echo "           # this is also a test comment, :O" >> test/config/postfix-accounts.cf
 
-
 tests:
 	./test/bats/bin/bats test/*.bats
 
 .PHONY: ALWAYS_RUN
 test/%.bats: ALWAYS_RUN
-		./test/bats/bin/bats $@
+	./test/bats/bin/bats $@
 
 clean:
 # remove running and stopped test containers
 	-@ docker ps -a | grep -E "docker-mailserver:testing|ldap_for_mail" | cut -f 1-1 -d ' ' | xargs --no-run-if-empty docker rm -f
-	-@ if [ -d config.bak ]; then\
+	-@ [[ -d config.bak ]] && { rm -rf config ; mv config.bak config ; } || :
-		rm -rf config ;\
+	-@ [[ -d testconfig.bak ]] && { sudo rm -rf test/config ; mv testconfig.bak test/config ; } || :
-		mv config.bak config ;\
-	fi
-	-@ if [ -d testconfig.bak ]; then\
-		sudo rm -rf test/config ;\
-		mv testconfig.bak test/config ;\
-	fi
 	-@ sudo rm -rf test/onedir test/alias test/quota test/relay test/config/dovecot-lmtp/userdb test/config/key* test/config/opendkim/keys/domain.tld/ test/config/opendkim/keys/example.com/ test/config/opendkim/keys/localdomain2.com/ test/config/postfix-aliases.cf test/config/postfix-receive-access.cf test/config/postfix-receive-access.cfe test/config/dovecot-quotas.cf test/config/postfix-send-access.cf test/config/postfix-send-access.cfe test/config/relay-hosts/chksum test/config/relay-hosts/postfix-aliases.cf test/config/dhparams.pem test/config/dovecot-lmtp/dh.pem test/config/relay-hosts/dovecot-quotas.cf test/config/user-patches.sh test/alias/config/postfix-virtual.cf test/quota/config/dovecot-quotas.cf test/quota/config/postfix-accounts.cf test/relay/config/postfix-relaymap.cf test/relay/config/postfix-sasl-password.cf test/duplicate_configs/
 
 lint: eclint hadolint shellcheck

README.md

@@ -32,13 +32,9 @@ Easy to deploy and upgrade.
 ## Announcements
 
 1. Since version `v7.1.0`, the use of default variables has changed slightly. Please consult the [environment Variables](#environment-variables) sections
-2. Debian Buster is now Docker base image
+2. New contributing guidelines were added
-   - Filebeat was removed
+3. Added coherent coding style and linting
-   - Dovecot was downgraded
+4. Added option to use non-default network interface
-3. ELK was removed
-4. New contributing guidelines were added
-5. Added coherent coding style and linting
-6. Added option to use non-default network interface
 
 ## Includes
 
@@ -114,28 +110,31 @@ chmod a+x ./setup.sh
 **Note:** If you want to use a bare domain (host name equals domain name) see [FAQ](https://github.com/tomav/docker-mailserver/wiki/FAQ-and-Tips#can-i-use-nakedbare-domains-no-host-name).
 
 ### Get up and running
-**Note:** If using SELinux and is enabled, skip to next section below.
+
+#### Default - Without SELinux
+
 ``` BASH
 docker-compose up -d mail
+
 ./setup.sh email add <user@domain> [<password>]
 ./setup.sh config dkim
 ```
 
-### Get up and running with SELinux
+#### With SELinux
-- Edit the files `.env` and `docker-compose.yml`:
-  - In `.env` uncomment the variable `SELINUX_LABEL`. 
-    - If you want the volume bind mount to be shared among other containers switch `-Z` to `-z`.  
-  - In `docker-compose.yml` uncomment the line that contains `${SELINUX_LABEL}` and comment out or remove the line above.
 
-**Note:** When using `setup.sh` use the option `-z` or `-Z`. This should match the value of `SELINUX_LABEL` in the `.env` file.\
+Edit the files `.env` and `docker-compose.yml`. In `.env` uncomment the variable `SELINUX_LABEL`. If you want the volume bind mount to be shared among other containers switch `-Z` to `-z`. In `docker-compose.yml`, uncomment the line that contains `${SELINUX_LABEL}` and comment out or remove the line above.
-See the [wiki](https://github.com/tomav/docker-mailserver/wiki/Setup-docker-mailserver-using-the-script-setup.sh) for more information regarding `setup.sh`.
+  
+**Note:** When using `setup.sh` use the option `-z` or `-Z`. This should match the value of `SELINUX_LABEL` in the `.env` file. See the [wiki](https://github.com/tomav/docker-mailserver/wiki/Setup-docker-mailserver-using-the-script-setup.sh) for more information regarding `setup.sh`.
 
 ``` BASH
 docker-compose up -d mail
+
 ./setup.sh -Z email add <user@domain> [<password>]
 ./setup.sh -Z config dkim
 ```
 
+### DNS - DKIM
+
 Now that the keys are generated, you can configure your DNS server by just pasting the content of `config/opendkim/keys/domain.tld/mail.txt` in your `domain.tld.hosts` zone.
 
 ### Miscellaneous
@@ -144,7 +143,7 @@ Now that the keys are generated, you can configure your DNS server by just pasti
 
 ``` BASH
 docker-compose down
-docker pull tvial/docker-mailserver:latest
+docker pull tvial/docker-mailserver:<VERSION TAG>
 docker-compose up -d mail
 ```
 

compose.env

@@ -5,4 +5,9 @@
 HOSTNAME=mail
 DOMAINNAME=domain.com
 CONTAINER_NAME=mail
-#SELINUX_LABEL=-Z
+
+# –––––––––––––––––––––––––––––––––––––––––––––––
+# ––– SELinux Compose File Settings Variables –––
+# –––––––––––––––––––––––––––––––––––––––––––––––
+
+SELINUX_LABEL=-Z

docker-compose.yml

@@ -16,8 +16,8 @@ services:
       - mailstate:/var/mail-state
       - maillogs:/var/log/mail
       - ./config/:/tmp/docker-mailserver/
-      # If SELinux is enabled uncomment line below and comment line above
+      # ? if SELinux is enabled, uncomment the line below and comment the line above
-      #- ./config/:/tmp/docker-mailserver/${SELINUX_LABEL}
+      # - ./config/:/tmp/docker-mailserver/${SELINUX_LABEL}
     env_file:
       - mailserver.env
     cap_add:

hooks/build

@@ -1,8 +1,9 @@
-#!/bin/sh
+#! /bin/sh
-VCS_REF=$(git rev-parse --short HEAD)
+
-VCS_VERSION=$(git describe --tags --contains --always)
+VCS_REF="$(git rev-parse --short HEAD)"
+VCS_VERSION="$(git describe --tags --contains --always)"
 
 docker build \
-  --build-arg VCS_REF="$VCS_REF" \
+  --build-arg VCS_REF="${VCS_REF}" \
-  --build-arg VCS_VERSION="$VCS_VERSION" \
+  --build-arg VCS_VERSION="${VCS_VERSION}" \
-  -f "$DOCKERFILE_PATH" -t "$IMAGE_NAME" .
+  -f "${DOCKERFILE_PATH}" -t "${IMAGE_NAME}" .

mailserver.env

@@ -175,9 +175,9 @@ REPORT_INTERVAL=daily
 # Note: More details in http://www.postfix.org/postconf.5.html#inet_protocols
 POSTFIX_INET_PROTOCOLS=all
 
-# -----------------------------------------------------------------------------------------------------------------------------
+# –––––––––––––––––––––––––––––––––––––––––––––––
-# --------------------- Spamassassin section ----------------------------------------------------------------------------------
+# ––– Spamassassin Section ––––––––––––––––––––––
-# -----------------------------------------------------------------------------------------------------------------------------
+# –––––––––––––––––––––––––––––––––––––––––––––––
 
 ENABLE_SPAMASSASSIN=0
 
@@ -199,18 +199,18 @@ SA_KILL=6.31
 # add tag to subject if spam detected
 SA_SPAM_SUBJECT=***SPAM*****
 
-# -----------------------------------------------------------------------------------------------------------------------------
+# –––––––––––––––––––––––––––––––––––––––––––––––
-# --------------------- Fetchmail section -------------------------------------------------------------------------------------
+# ––– Fetchmail Section –––––––––––––––––––––––––
-# -----------------------------------------------------------------------------------------------------------------------------
+# –––––––––––––––––––––––––––––––––––––––––––––––
 
 ENABLE_FETCHMAIL=0
 
 # The interval to fetch mail in seconds
 FETCHMAIL_POLL=300
 
-# -----------------------------------------------------------------------------------------------------------------------------
+# –––––––––––––––––––––––––––––––––––––––––––––––
-# --------------------- LDAP section ------------------------------------------------------------------------------------------
+# ––– LDAP Section ––––––––––––––––––––––––––––––
-# -----------------------------------------------------------------------------------------------------------------------------
+# –––––––––––––––––––––––––––––––––––––––––––––––
 
 # A second container for the ldap service is necessary (i.e. https://github.com/osixia/docker-openldap)
 # For preparing the ldap server to use in combination with this container this article may be helpful: http://acidx.net/wordpress/2014/06/installing-a-mailserver-with-postfix-dovecot-sasl-ldap-roundcube/
@@ -256,9 +256,9 @@ LDAP_QUERY_FILTER_ALIAS=
 # => Specify how ldap should be asked for domains
 LDAP_QUERY_FILTER_DOMAIN=
 
-# -----------------------------------------------------------------------------------------------------------------------------
+# –––––––––––––––––––––––––––––––––––––––––––––––
-# ---------------- Dovecot section --------------------------------------------------------------------------------------------
+# ––– Dovecot Section –––––––––––––––––––––––––––
-# -----------------------------------------------------------------------------------------------------------------------------
+# –––––––––––––––––––––––––––––––––––––––––––––––
 
 # empty => no
 # yes => LDAP over TLS enabled for Dovecot
@@ -279,9 +279,9 @@ DOVECOT_MAILBOX_FORMAT=maildir
 # https://wiki.dovecot.org/AuthDatabase/LDAP/AuthBinds
 DOVECOT_AUTH_BIND=
 
-# -----------------------------------------------------------------------------------------------------------------------------
+# –––––––––––––––––––––––––––––––––––––––––––––––
-# ---------------- Postgrey section -------------------------------------------------------------------------------------------
+# ––– Postgrey Section ––––––––––––––––––––––––––
-# -----------------------------------------------------------------------------------------------------------------------------
+# –––––––––––––––––––––––––––––––––––––––––––––––
 
 ENABLE_POSTGREY=0
 # greylist for N seconds
@@ -293,9 +293,9 @@ POSTGREY_TEXT=Delayed by postgrey
 # whitelist host after N successful deliveries (N=0 to disable whitelisting)
 POSTGREY_AUTO_WHITELIST_CLIENTS=5
 
-# -----------------------------------------------------------------------------------------------------------------------------
+# –––––––––––––––––––––––––––––––––––––––––––––––
-# ---------------- SASL section -----------------------------------------------------------------------------------------------
+# ––– SASL Section ––––––––––––––––––––––––––––––
-# -----------------------------------------------------------------------------------------------------------------------------
+# –––––––––––––––––––––––––––––––––––––––––––––––
 
 ENABLE_SASLAUTHD=0
 
@@ -349,9 +349,9 @@ SASLAUTHD_LDAP_TLS_CHECK_PEER=
 # string => `/etc/postfix/sasl_passwd` will be created with the string as password
 SASL_PASSWD=
 
-# -----------------------------------------------------------------------------------------------------------------------------
+# –––––––––––––––––––––––––––––––––––––––––––––––
-# ---------------- SRS section --------------------------------------------------------------------------------------------
+# ––– SRS Section –––––––––––––––––––––––––––––––
-# -----------------------------------------------------------------------------------------------------------------------------
+# –––––––––––––––––––––––––––––––––––––––––––––––
 
 # envelope_sender => Rewrite only envelope sender address (default)
 # header_sender => Rewrite only header sender (not recommended)
@@ -372,9 +372,9 @@ SRS_EXCLUDE_DOMAINS=
 # rotate and expire keys
 SRS_SECRET=
 
-# -----------------------------------------------------------------------------------------------------------------------------
+# –––––––––––––––––––––––––––––––––––––––––––––––
-# ---------------- Default relay host section ---------------------------------------------------------------------------------
+# ––– Default Relay Host Section ––––––––––––––––
-# -----------------------------------------------------------------------------------------------------------------------------
+# –––––––––––––––––––––––––––––––––––––––––––––––
 
 # Setup relaying all mail through a default relay host
 #
@@ -382,9 +382,9 @@ SRS_SECRET=
 # default host and optional port to relay all mail through
 DEFAULT_RELAY_HOST=
 
-# -----------------------------------------------------------------------------------------------------------------------------
+# –––––––––––––––––––––––––––––––––––––––––––––––
-# ---------------- Multi-domain relay section ---------------------------------------------------------------------------------
+# ––– Multi-Domain Relay Section ––––––––––––––––
-# -----------------------------------------------------------------------------------------------------------------------------
+# –––––––––––––––––––––––––––––––––––––––––––––––
 
 # Setup relaying for multiple domains based on the domain name of the sender
 # optionally uses usernames and passwords in postfix-sasl-password.cf and relay host mappings in postfix-relaymap.cf

setup.sh

@@ -1,7 +1,7 @@
-#!/bin/bash
+#! /bin/bash
 
 # Wrapper for various setup scripts
-# included in the docker-mailserver
+# included in docker-mailserver
 
 SCRIPT='SETUP'
 
@@ -252,12 +252,24 @@ function _main
   while getopts ":c:i:p:hzZ" OPT
   do
     case ${OPT} in
-      c) CONTAINER_NAME="${OPTARG}" ; USE_CONTAINER=true ;; # container specified, connect to running instance
+      i ) IMAGE_NAME="${OPTARG}" ;;
-      i) IMAGE_NAME="${OPTARG}" ;;
+      z ) USING_SELINUX=":z"     ;;
-      p)
+      Z ) USING_SELINUX=":Z"     ;;
+      c )
+        # container specified, connect to running instance
+        CONTAINER_NAME="${OPTARG}"
+        USE_CONTAINER=true
+        ;;
+
+      h )
+        _usage
+        return
+        ;;
+
+      p )
         case "${OPTARG}" in
-          /*) WISHED_CONFIG_PATH="${OPTARG}" ;;
+          /* ) WISHED_CONFIG_PATH="${OPTARG}"         ;;
-          * ) WISHED_CONFIG_PATH="${CDIR}/${OPTARG}" ;;
+          *  ) WISHED_CONFIG_PATH="${CDIR}/${OPTARG}" ;;
         esac
 
         if [[ ! -d ${WISHED_CONFIG_PATH} ]]
@@ -267,13 +279,15 @@ function _main
           exit 40
         fi
         ;;
-      h) _usage ; return ;;
+
-      z) USING_SELINUX=":z" ;;
+      * )
-      Z) USING_SELINUX=":Z" ;;
+        echo "Invalid option: -${OPTARG}" >&2
-     *) echo "Invalid option: -${OPTARG}" >&2 ;;
+        ;;
+
     esac
   done
-  shift $((OPTIND-1))
+
+  shift $(( OPTIND - 1 ))
 
   if [[ -z ${WISHED_CONFIG_PATH} ]]
   then

target/bin-helper.sh

@@ -1,6 +1,5 @@
 #! /bin/bash
 
-# version   0.1.0
 # executed  from scripts in target/bin/
 # task      provides frequently used functions
 

target/check-for-changes.sh

@@ -1,9 +1,5 @@
 #! /bin/bash
 
-# version  0.2.0
-#
-# <INSERT TASK HERE>
-
 # shellcheck source=./helper-functions.sh
 . /usr/local/bin/helper-functions.sh
 

target/dovecot/scripts/quota-warning.sh

@@ -1,4 +1,4 @@
-#!/usr/bin/env sh
+#! /usr/bin/env sh
 
 # Report a quota usage warning to an user
 

target/fail2ban-wrapper.sh

@@ -1,7 +1,5 @@
 #! /bin/bash
 
-# version  0.1.0
-#
 # You cannot start fail2ban in some foreground mode and
 # it's more or less important that docker doesn't kill
 # fail2ban and its chilren if you stop the container.

target/helper-functions.sh

@@ -1,10 +1,5 @@
 #! /bin/bash
 
-# version  0.1.1
-#
-# Provides varous helpers.
-
-
 # ? IP and CIDR -------------------------------------------
 
 

target/postfix-wrapper.sh

@@ -1,7 +1,5 @@
 #! /bin/bash
 
-# version  0.1.0
-#
 # You cannot start postfix in some foreground mode and
 # it's more or less important that docker doesn't kill
 # postfix and its chilren if you stop the container.

target/postgrey/postgrey.init

@@ -1,5 +1,5 @@
-#!/bin/sh
+#! /bin/sh
-#
+
 # postgrey      start/stop the postgrey greylisting deamon for postfix
 #               (priority should be smaller than that of postfix)
 #
@@ -8,7 +8,8 @@
 #               Distribute and/or modify at will.
 #
 # Version:      $Id: postgrey.init 1436 2006-12-07 07:15:03Z avbidder $
-#
+#               altered by Georg Lauterbach as aendeavor 2020-11.05 14:02:00Z
+
 ### BEGIN INIT INFO
 # Provides:          postgrey
 # Required-Start:    $syslog $local_fs $remote_fs
@@ -20,46 +21,48 @@
 
 set -e
 
-PATH=/sbin:/bin:/usr/sbin:/usr/bin
+PATH='/sbin:/bin:/usr/sbin:/usr/bin'
-DAEMON=/usr/sbin/postgrey
+DAEMON='/usr/sbin/postgrey'
-DAEMON_NAME=postgrey
+DAEMON_NAME='postgrey'
-DESC="postfix greylisting daemon"
+DESC='postfix greylisting daemon'
-DAEMON_USER=postgrey
+DAEMON_USER='postgrey'
 
-PIDFILE=/var/run/$DAEMON_NAME/$DAEMON_NAME.pid
+PIDFILE="/var/run/${DAEMON_NAME}/${DAEMON_NAME}.pid"
-SCRIPTNAME=/etc/init.d/$DAEMON_NAME
+SCRIPTNAME="/etc/init.d/${DAEMON_NAME}"
 
-# Gracefully exit if the package has been removed.
+# gracefully exit if the package has been removed.
-test -x $DAEMON || exit 0
+[ -x "${DAEMON}" ] || exit 0
 
+# shellcheck source=/dev/null
 . /lib/lsb/init-functions
 
 # Read config file if it is present.
-if [ -r /etc/default/$DAEMON_NAME ]
+# shellcheck source=/dev/null
-then
+[ -r "/etc/default/${DAEMON_NAME}" ] && . "/etc/default/${DAEMON_NAME}"
-    . /etc/default/$DAEMON_NAME
-fi
 
-POSTGREY_OPTS="--pidfile=$PIDFILE --daemonize $POSTGREY_OPTS"
+POSTGREY_OPTS="--pidfile=${PIDFILE} --daemonize ${POSTGREY_OPTS}"
-if [ -z "$POSTGREY_TEXT" ]; then
+
+if [ -z "${POSTGREY_TEXT}" ]
+then
     POSTGREY_TEXT_OPT=""
 else
-    POSTGREY_TEXT_OPT="--greylist-text=$POSTGREY_TEXT"
+    POSTGREY_TEXT_OPT="--greylist-text=${POSTGREY_TEXT}"
 fi
 
 ret=0
 
 do_start()
 {
-        # Return
+    # Return
-        #   0 if daemon has been started
+    #   0 if daemon has been started
-        #   1 if daemon was already running
+    #   1 if daemon was already running
-        #   2 if daemon could not be started
+    #   2 if daemon could not be started
-        start-stop-daemon --start --quiet --pidfile $PIDFILE --exec $DAEMON --test > /dev/null \
+    start-stop-daemon --start --quiet --pidfile \
-                || return 1
+		"${PIDFILE}" --exec "${DAEMON}" --test >/dev/null  || return 1
-        start-stop-daemon --start --quiet --pidfile $PIDFILE --exec $DAEMON -- \
+
-                $POSTGREY_OPTS "$POSTGREY_TEXT_OPT" \
+	start-stop-daemon --start --quiet --pidfile \
-                || return 2
+		"${PIDFILE}" --exec "${DAEMON}" -- "${POSTGREY_OPTS}" \
+		"${POSTGREY_TEXT_OPT}" || return 2
 }
 
 do_stop()
@@ -69,9 +72,11 @@ do_stop()
 	#   1 if daemon was already stopped
 	#   2 if daemon could not be stopped
 	#   other if a failure occurred
-        start-stop-daemon --user $DAEMON_USER --stop --quiet --retry=TERM/30/KILL/5 --pidfile $PIDFILE
+    start-stop-daemon --user "${DAEMON_USER}" --stop --quiet \
-        RETVAL="$?"
+		--retry=TERM/30/KILL/5 --pidfile "${PIDFILE}"
-        [ "$RETVAL" = 2 ] && return 2
+
+	RETVAL="$?"
+    [ "${RETVAL}" -eq 2 ] && return 2
 
 	# Wait for children to finish too if this is a daemon that forks
 	# and if the daemon is only ever run from this initscript.
@@ -79,12 +84,13 @@ do_stop()
 	# that waits for the process to drop all resources that could be
 	# needed by services started subsequently.  A last resort is to
 	# sleep for some time.
-	start-stop-daemon --user $DAEMON_USER --stop --quiet --oknodo --retry=0/30/KILL/5 --exec $DAEMON
+	start-stop-daemon --user "${DAEMON_USER}" --stop --quiet \
-	[ "$?" = 2 ] && return 2
+		--oknodo --retry=0/30/KILL/5 --exec "${DAEMON}"
-	# Many daemons don't delete their pidfiles when they exit.
+	[ "$?" -eq 2 ] && return 2
-	rm -f $PIDFILE
-	return "$RETVAL"
 
+	# Many daemons don't delete their pidfiles when they exit.
+	rm -f "${PIDFILE}"
+	return "${RETVAL}"
 }
 
 do_reload()
@@ -94,49 +100,56 @@ do_reload()
 	# restarting (for example, when it is sent a SIGHUP),
 	# then implement that here.
 	#
-	start-stop-daemon --stop --signal 1 --quiet --pidfile $PIDFILE
+	start-stop-daemon --stop --signal 1 --quiet --pidfile "${PIDFILE}"
 	return 0
 }
 
-case "$1" in
+case "${1}" in
-  start)
+  start )
-	[ "$VERBOSE" != no ] && log_daemon_msg "Starting $DESC" "$DAEMON_NAME"
+	[ "${VERBOSE}" != no ] && log_daemon_msg "Starting ${DESC}" "${DAEMON_NAME}"
-        do_start
+	do_start
-	case "$?" in
-		0|1) [ "$VERBOSE" != no ] && log_end_msg 0 ;;
-		2) [ "$VERBOSE" != no ] && log_end_msg 1 ;;
-	esac
-        ;;
-  stop)
-	[ "$VERBOSE" != no ] && log_daemon_msg "Stopping $DESC" "$DAEMON_NAME"
-        do_stop
-	case "$?" in
-		0|1) [ "$VERBOSE" != no ] && log_end_msg 0 ;;
-		2) [ "$VERBOSE" != no ] && log_end_msg 1 ;;
-	esac
-        ;;
-  reload|force-reload)
-	[ "$VERBOSE" != no ] && log_daemon_msg "Reloading $DESC" "$DAEMON_NAME"
-        do_reload
-	case "$?" in
-		0|1) [ "$VERBOSE" != no ] && log_end_msg 0 ;;
-		2) [ "$VERBOSE" != no ] && log_end_msg 1 ;;
-	esac
-        ;;
-  restart)
-        do_stop
-        do_start
-        ;;
-  status)
-        status_of_proc -p $PIDFILE $DAEMON "$DAEMON_NAME" 2>/dev/null
-        ret=$?
-        ;;
 
-  *)
+	case "${?}" in
-        echo "Usage: $SCRIPTNAME {start|stop|restart|reload|force-reload|status}" >&2
+		0|1) [ "${VERBOSE}" != no ] && log_end_msg 0 ;;
-        exit 1
+		2) [ "${VERBOSE}" != no ] && log_end_msg 1 ;;
-        ;;
+	esac
+    ;;
+
+  stop )
+	[ "${VERBOSE}" != no ] && log_daemon_msg "Stopping ${DESC}" "${DAEMON_NAME}"
+    do_stop
+
+	case "${?}" in
+		0|1) [ "${VERBOSE}" != no ] && log_end_msg 0 ;;
+		2) [ "${VERBOSE}" != no ] && log_end_msg 1 ;;
+	esac
+    ;;
+
+  reload|force-reload)
+	[ "${VERBOSE}" != no ] && log_daemon_msg "Reloading ${DESC}" "${DAEMON_NAME}"
+    do_reload
+
+	case "${?}" in
+		0|1) [ "${VERBOSE}" != no ] && log_end_msg 0 ;;
+		2) [ "${VERBOSE}" != no ] && log_end_msg 1 ;;
+	esac
+    ;;
+
+  restart )
+    do_stop
+    do_start
+    ;;
+
+  status )
+    status_of_proc -p "${PIDFILE}" "${DAEMON}" "${DAEMON_NAME}" 2>/dev/null
+    ret=${?}
+    ;;
+
+  * )
+    echo "Usage: ${SCRIPTNAME} {start|stop|restart|reload|force-reload|status}" >&2
+    exit 1
+    ;;
 esac
 
-exit $ret
+exit ${ret}
 

target/postsrsd-wrapper.sh

@@ -1,7 +1,5 @@
 #! /bin/bash
 
-# version  0.1.0
-
 function _generate_secret { ( umask 0077 ; dd if=/dev/urandom bs=24 count=1 2>/dev/null | base64 -w0 > "${1}" ) }
 
 if [[ -n ${SRS_DOMAINNAME} ]]

target/start-mailserver.sh

@@ -1,9 +1,5 @@
 #! /bin/bash
 
-# version  0.2.1
-#
-# Starts the mailserver.
-
 ##########################################################################
 # >> DEFAULT VARS
 #

test/linting/lint.sh

@@ -1,4 +1,4 @@
-#!/usr/bin/env bash
+#! /bin/bash
 
 # version   v0.1.0 stable
 # executed  by TravisCI / manually
@@ -190,7 +190,7 @@ function _shellcheck
     fi
   done < <(find test/ -maxdepth 1 -type f -iname "*.bats")
 
-  if [[ ERR -eq 1 ]]
+  if [[ ${ERR} -eq 1 ]]
   then
     __log_abort 'errors encountered'
     return 101

test/mail_smtponly.bats

@@ -63,6 +63,7 @@ function teardown_file() {
   assert_success
   run docker exec mail_smtponly /bin/sh -c "/etc/init.d/postfix reload"
   assert_success
+  sleep 5
   run docker exec mail_smtponly /bin/sh -c "nc 0.0.0.0 25 < /tmp/docker-mailserver-test/email-templates/smtp-only.txt"
   assert_success
   run docker exec mail_smtponly /bin/sh -c 'grep -cE "to=<user2\@external.tld>.*status\=sent" /var/log/mail/mail.log'