#!/bin/bash ########################################################################## # >> DEFAULT VARS # # add them here. # Example: DEFAULT_VARS["KEY"]="VALUE" ########################################################################## declare -A DEFAULT_VARS DEFAULT_VARS["ENABLE_CLAMAV"]="${ENABLE_CLAMAV:="0"}" DEFAULT_VARS["ENABLE_SPAMASSASSIN"]="${ENABLE_SPAMASSASSIN:="0"}" DEFAULT_VARS["ENABLE_POP3"]="${ENABLE_POP3:="0"}" DEFAULT_VARS["ENABLE_FAIL2BAN"]="${ENABLE_FAIL2BAN:="0"}" DEFAULT_VARS["ENABLE_MANAGESIEVE"]="${ENABLE_MANAGESIEVE:="0"}" DEFAULT_VARS["ENABLE_FETCHMAIL"]="${ENABLE_FETCHMAIL:="0"}" DEFAULT_VARS["ENABLE_LDAP"]="${ENABLE_LDAP:="0"}" DEFAULT_VARS["ENABLE_POSTGREY"]="${ENABLE_POSTGREY:="0"}" DEFAULT_VARS["POSTGREY_DELAY"]="${POSTGREY_DELAY:="300"}" DEFAULT_VARS["POSTGREY_MAX_AGE"]="${POSTGREY_MAX_AGE:="35"}" DEFAULT_VARS["POSTGREY_TEXT"]="${POSTGREY_TEXT:="Delayed by postgrey"}" DEFAULT_VARS["ENABLE_SASLAUTHD"]="${ENABLE_SASLAUTHD:="0"}" DEFAULT_VARS["SMTP_ONLY"]="${SMTP_ONLY:="0"}" DEFAULT_VARS["DMS_DEBUG"]="${DMS_DEBUG:="0"}" DEFAULT_VARS["OVERRIDE_HOSTNAME"]="${OVERRIDE_HOSTNAME}" ########################################################################## # << DEFAULT VARS ########################################################################## ########################################################################## # >> GLOBAL VARS # # add your global script variables here. # # Example: KEY="VALUE" ########################################################################## HOSTNAME="$(hostname -f)" DOMAINNAME="$(hostname -d)" ########################################################################## # << GLOBAL VARS ########################################################################## ########################################################################## # >> REGISTER FUNCTIONS # # add your new functions/methods here. # # NOTE: position matters when registering a function in stacks. First in First out # Execution Logic: # > check functions # > setup functions # > fix functions # > misc functions # > start-daemons # # Example: # if [ CONDITION IS MET ]; then # _register_{setup,fix,check,start}_{functions,daemons} "$FUNCNAME" # fi # # Implement them in the section-group: {check,setup,fix,start} ########################################################################## function register_functions() { notify 'taskgrp' 'Initializing setup' notify 'task' 'Registering check,setup,fix,misc and start-daemons functions' ################### >> check funcs _register_check_function "_check_environment_variables" _register_check_function "_check_hostname" ################### << check funcs ################### >> setup funcs _register_setup_function "_setup_default_vars" if [ "$ENABLE_ELK_FORWARDER" = 1 ]; then _register_setup_function "_setup_elk_forwarder" fi if [ "$SMTP_ONLY" != 1 ]; then _register_setup_function "_setup_dovecot" _register_setup_function "_setup_dovecot_local_user" fi if [ "$ENABLE_LDAP" = 1 ];then _register_setup_function "_setup_ldap" fi if [ "$ENABLE_SASLAUTHD" = 1 ];then _register_setup_function "_setup_saslauthd" fi if [ "$ENABLE_POSTGREY" = 1 ];then _register_setup_function "_setup_postgrey" fi _register_setup_function "_setup_dkim" _register_setup_function "_setup_ssl" _register_setup_function "_setup_docker_permit" _register_setup_function "_setup_mailname" _register_setup_function "_setup_amavis" _register_setup_function "_setup_dmarc_hostname" _register_setup_function "_setup_postfix_hostname" _register_setup_function "_setup_dovecot_hostname" _register_setup_function "_setup_postfix_sasl" _register_setup_function "_setup_postfix_override_configuration" _register_setup_function "_setup_postfix_sasl_password" _register_setup_function "_setup_security_stack" _register_setup_function "_setup_postfix_aliases" _register_setup_function "_setup_postfix_vhost" _register_setup_function "_setup_postfix_dhparam" if [ ! -z "$AWS_SES_HOST" -a ! -z "$AWS_SES_USERPASS" ]; then _register_setup_function "_setup_postfix_relay_amazon_ses" fi if [ "$ENABLE_POSTFIX_VIRTUAL_TRANSPORT" = 1 ]; then _register_setup_function "_setup_postfix_virtual_transport" fi _register_setup_function "_setup_environment" ################### << setup funcs ################### >> fix funcs _register_fix_function "_fix_var_mail_permissions" _register_fix_function "_fix_var_amavis_permissions" if [ "$ENABLE_CLAMAV" = 0 ]; then _register_fix_function "_fix_cleanup_clamav" fi ################### << fix funcs ################### >> misc funcs _register_misc_function "_misc_save_states" ################### << misc funcs ################### >> daemon funcs _register_start_daemon "_start_daemons_cron" _register_start_daemon "_start_daemons_rsyslog" if [ "$ENABLE_ELK_FORWARDER" = 1 ]; then _register_start_daemon "_start_daemons_filebeat" fi if [ "$SMTP_ONLY" != 1 ]; then _register_start_daemon "_start_daemons_dovecot" fi # needs to be started before saslauthd _register_start_daemon "_start_daemons_opendkim" _register_start_daemon "_start_daemons_opendmarc" #postfix uses postgrey, needs to be started before postfix if [ "$ENABLE_POSTGREY" = 1 ]; then _register_start_daemon "_start_daemons_postgrey" fi _register_start_daemon "_start_daemons_postfix" if [ "$ENABLE_SASLAUTHD" = 1 ];then _register_start_daemon "_start_daemons_saslauthd" fi # care needs to run after postfix if [ "$ENABLE_FAIL2BAN" = 1 ]; then _register_start_daemon "_start_daemons_fail2ban" fi if [ "$ENABLE_FETCHMAIL" = 1 ]; then _register_start_daemon "_start_daemons_fetchmail" fi if [ "$ENABLE_CLAMAV" = 1 ]; then _register_start_daemon "_start_daemons_clamav" fi _register_start_daemon "_start_daemons_amavis" ################### << daemon funcs } ########################################################################## # << REGISTER FUNCTIONS ########################################################################## # !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! # ! CARE --> DON'T CHANGE, unless you exactly know what you are doing # !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! # >> ########################################################################## # >> CONSTANTS ########################################################################## declare -a FUNCS_SETUP declare -a FUNCS_FIX declare -a FUNCS_CHECK declare -a FUNCS_MISC declare -a DAEMONS_START declare -A HELPERS_EXEC_STATE ########################################################################## # << CONSTANTS ########################################################################## ########################################################################## # >> protected register_functions ########################################################################## function _register_start_daemon() { DAEMONS_START+=($1) notify 'inf' "$1() registered" } function _register_setup_function() { FUNCS_SETUP+=($1) notify 'inf' "$1() registered" } function _register_fix_function() { FUNCS_FIX+=($1) notify 'inf' "$1() registered" } function _register_check_function() { FUNCS_CHECK+=($1) notify 'inf' "$1() registered" } function _register_misc_function() { FUNCS_MISC+=($1) notify 'inf' "$1() registered" } ########################################################################## # << protected register_functions ########################################################################## function notify () { c_red="\e[0;31m" c_green="\e[0;32m" c_brown="\e[0;33m" c_blue="\e[0;34m" c_bold="\033[1m" c_reset="\e[0m" notification_type=$1 notification_msg=$2 notification_format=$3 msg="" case "${notification_type}" in 'taskgrp') msg="${c_bold}${notification_msg}${c_reset}" ;; 'task') if [[ ${DEFAULT_VARS["DMS_DEBUG"]} == 1 ]]; then msg=" ${notification_msg}${c_reset}" fi ;; 'inf') if [[ ${DEFAULT_VARS["DMS_DEBUG"]} == 1 ]]; then msg="${c_green} * ${notification_msg}${c_reset}" fi ;; 'started') msg="${c_green} ${notification_msg}${c_reset}" ;; 'warn') msg="${c_brown} * ${notification_msg}${c_reset}" ;; 'err') msg="${c_red} * ${notification_msg}${c_reset}" ;; 'fatal') msg="${c_red}Error: ${notification_msg}${c_reset}" ;; *) msg="" ;; esac case "${notification_format}" in 'n') options="-ne" ;; *) options="-e" ;; esac [[ ! -z "${msg}" ]] && echo $options "${msg}" } function defunc() { notify 'fatal' "Please fix your configuration. Exiting..." exit 1 } function display_startup_daemon() { $1 &>/dev/null res=$? if [[ ${DEFAULT_VARS["DMS_DEBUG"]} == 1 ]]; then if [ $res = 0 ]; then notify 'started' " [ OK ]" else echo "false" notify 'err' " [ FAILED ]" fi fi return $res } # !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! # ! CARE --> DON'T CHANGE, except you know exactly what you are doing # !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! # << ########################################################################## # >> Check Stack # # Description: Place functions for initial check of container sanity ########################################################################## function check() { notify 'taskgrp' 'Checking configuration' for _func in "${FUNCS_CHECK[@]}";do $_func [ $? != 0 ] && defunc done } function _check_hostname() { notify "task" "Check that hostname/domainname is provided or overidden (no default docker hostname/kubernetes) [$FUNCNAME]" if [[ ! -z ${DEFAULT_VARS["OVERRIDE_HOSTNAME"]} ]]; then export HOSTNAME=${DEFAULT_VARS["OVERRIDE_HOSTNAME"]} export DOMAINNAME=$(echo $HOSTNAME | sed s/[^.]*.//) fi if ( ! echo $HOSTNAME | grep -E '^(\S+[.]\S+)$' > /dev/null ); then notify 'err' "Setting hostname/domainname is required" kill -6 `cat /var/run/supervisord.pid` && return 1 else notify 'inf' "Domain has been set to $DOMAINNAME" notify 'inf' "Hostname has been set to $HOSTNAME" return 0 fi } function _check_environment_variables() { notify "task" "Check that there are no conflicts with env variables [$FUNCNAME]" return 0 } ########################################################################## # << Check Stack ########################################################################## ########################################################################## # >> Setup Stack # # Description: Place functions for functional configurations here ########################################################################## function setup() { notify 'taskgrp' 'Configuring mail server' for _func in "${FUNCS_SETUP[@]}";do $_func done } function _setup_default_vars() { notify 'task' "Setting up default variables [$FUNCNAME]" for var in ${!DEFAULT_VARS[@]}; do echo "export $var=${DEFAULT_VARS[$var]}" >> /root/.bashrc [ $? != 0 ] && notify 'err' "Unable to set $var=${DEFAULT_VARS[$var]}" && kill -15 `cat /var/run/supervisord.pid` && return 1 notify 'inf' "Set $var=${DEFAULT_VARS[$var]}" done } function _setup_mailname() { notify 'task' 'Setting up Mailname' notify 'inf' "Creating /etc/mailname" echo $DOMAINNAME > /etc/mailname } function _setup_amavis() { notify 'task' 'Setting up Amavis' notify 'inf' "Applying hostname to /etc/amavis/conf.d/05-node_id" sed -i 's/^#\$myhostname = "mail.example.com";/\$myhostname = "'$HOSTNAME'";/' /etc/amavis/conf.d/05-node_id } function _setup_dmarc_hostname() { notify 'task' 'Setting up dmarc' notify 'inf' "Applying hostname to /etc/opendmarc.conf" sed -i -e 's/^AuthservID.*$/AuthservID '$HOSTNAME'/g' \ -e 's/^TrustedAuthservIDs.*$/TrustedAuthservIDs '$HOSTNAME'/g' /etc/opendmarc.conf } function _setup_postfix_hostname() { notify 'task' 'Applying hostname and domainname to Postfix' notify 'inf' "Applying hostname to /etc/postfix/main.cf" postconf -e "myhostname = $HOSTNAME" postconf -e "mydomain = $DOMAINNAME" } function _setup_dovecot_hostname() { notify 'task' 'Applying hostname to Dovecot' notify 'inf' "Applying hostname to /etc/dovecot/conf.d/15-lda.conf" sed -i 's/^#hostname =.*$/hostname = '$HOSTNAME'/g' /etc/dovecot/conf.d/15-lda.conf } function _setup_dovecot() { notify 'task' 'Setting up Dovecot' cp -a /usr/share/dovecot/protocols.d /etc/dovecot/ # Disable pop3 (it will be eventually enabled later in the script, if requested) mv /etc/dovecot/protocols.d/pop3d.protocol /etc/dovecot/protocols.d/pop3d.protocol.disab mv /etc/dovecot/protocols.d/managesieved.protocol /etc/dovecot/protocols.d/managesieved.protocol.disab sed -i -e 's/#ssl = yes/ssl = yes/g' /etc/dovecot/conf.d/10-master.conf sed -i -e 's/#port = 993/port = 993/g' /etc/dovecot/conf.d/10-master.conf sed -i -e 's/#port = 995/port = 995/g' /etc/dovecot/conf.d/10-master.conf sed -i -e 's/#ssl = yes/ssl = required/g' /etc/dovecot/conf.d/10-ssl.conf # Enable Managesieve service by setting the symlink # to the configuration file Dovecot will actually find if [ "$ENABLE_MANAGESIEVE" = 1 ]; then notify 'inf' "Sieve management enabled" mv /etc/dovecot/protocols.d/managesieved.protocol.disab /etc/dovecot/protocols.d/managesieved.protocol fi # Copy pipe and filter programs, if any rm -f /usr/lib/dovecot/sieve-filter/* rm -f /usr/lib/dovecot/sieve-pipe/* if [ -d /tmp/docker-mailserver/sieve-filter ]; then cp /tmp/docker-mailserver/sieve-filter/* /usr/lib/dovecot/sieve-filter/ chown docker:docker /usr/lib/dovecot/sieve-filter/* chmod 550 /usr/lib/dovecot/sieve-filter/* fi if [ -d /tmp/docker-mailserver/sieve-pipe ]; then cp /tmp/docker-mailserver/sieve-pipe/* /usr/lib/dovecot/sieve-pipe/ chown docker:docker /usr/lib/dovecot/sieve-pipe/* chmod 550 /usr/lib/dovecot/sieve-pipe/* fi } function _setup_dovecot_local_user() { notify 'task' 'Setting up Dovecot Local User' echo -n > /etc/postfix/vmailbox echo -n > /etc/dovecot/userdb if [ -f /tmp/docker-mailserver/postfix-accounts.cf -a "$ENABLE_LDAP" != 1 ]; then notify 'inf' "Checking file line endings" sed -i 's/\r//g' /tmp/docker-mailserver/postfix-accounts.cf notify 'inf' "Regenerating postfix user list" echo "# WARNING: this file is auto-generated. Modify config/postfix-accounts.cf to edit user list." > /etc/postfix/vmailbox # Checking that /tmp/docker-mailserver/postfix-accounts.cf ends with a newline sed -i -e '$a\' /tmp/docker-mailserver/postfix-accounts.cf chown dovecot:dovecot /etc/dovecot/userdb chmod 640 /etc/dovecot/userdb sed -i -e '/\!include auth-ldap\.conf\.ext/s/^/#/' /etc/dovecot/conf.d/10-auth.conf sed -i -e '/\!include auth-passwdfile\.inc/s/^#//' /etc/dovecot/conf.d/10-auth.conf # Creating users # 'pass' is encrypted # comments and empty lines are ignored grep -v "^\s*$\|^\s*\#" /tmp/docker-mailserver/postfix-accounts.cf | while IFS=$'|' read login pass do # Setting variables for better readability user=$(echo ${login} | cut -d @ -f1) domain=$(echo ${login} | cut -d @ -f2) # Let's go! notify 'inf' "user '${user}' for domain '${domain}' with password '********'" echo "${login} ${domain}/${user}/" >> /etc/postfix/vmailbox # User database for dovecot has the following format: # user:password:uid:gid:(gecos):home:(shell):extra_fields # Example : # ${login}:${pass}:5000:5000::/var/mail/${domain}/${user}::userdb_mail=maildir:/var/mail/${domain}/${user} echo "${login}:${pass}:5000:5000::/var/mail/${domain}/${user}::" >> /etc/dovecot/userdb mkdir -p /var/mail/${domain} if [ ! -d "/var/mail/${domain}/${user}" ]; then maildirmake.dovecot "/var/mail/${domain}/${user}" maildirmake.dovecot "/var/mail/${domain}/${user}/.Sent" maildirmake.dovecot "/var/mail/${domain}/${user}/.Trash" maildirmake.dovecot "/var/mail/${domain}/${user}/.Drafts" echo -e "INBOX\nSent\nTrash\nDrafts" >> "/var/mail/${domain}/${user}/subscriptions" touch "/var/mail/${domain}/${user}/.Sent/maildirfolder" fi # Copy user provided sieve file, if present test -e /tmp/docker-mailserver/${login}.dovecot.sieve && cp /tmp/docker-mailserver/${login}.dovecot.sieve /var/mail/${domain}/${user}/.dovecot.sieve echo ${domain} >> /tmp/vhost.tmp done else notify 'inf' "'config/docker-mailserver/postfix-accounts.cf' is not provided. No mail account created." fi if [[ ! $(grep '@' /tmp/docker-mailserver/postfix-accounts.cf | grep '|') ]]; then if [ $ENABLE_LDAP -eq 0 ]; then notify 'fatal' "Unless using LDAP, you need at least 1 email account to start the server." defunc fi fi } function _setup_ldap() { notify 'task' 'Setting up Ldap' notify 'inf' 'Checking for custom configs' # cp config files if in place for i in 'users' 'groups' 'aliases' 'domains'; do fpath="/tmp/docker-mailserver/ldap-${i}.cf" if [ -f $fpath ]; then cp ${fpath} /etc/postfix/ldap-${i}.cf fi done notify 'inf' 'Starting to override configs' for f in /etc/postfix/ldap-users.cf /etc/postfix/ldap-groups.cf /etc/postfix/ldap-aliases.cf /etc/postfix/ldap-domains.cf do [[ $f =~ ldap-user ]] && export LDAP_QUERY_FILTER="${LDAP_QUERY_FILTER_USER}" [[ $f =~ ldap-group ]] && export LDAP_QUERY_FILTER="${LDAP_QUERY_FILTER_GROUP}" [[ $f =~ ldap-aliases ]] && export LDAP_QUERY_FILTER="${LDAP_QUERY_FILTER_ALIAS}" [[ $f =~ ldap-domains ]] && export LDAP_QUERY_FILTER="${LDAP_QUERY_FILTER_DOMAIN}" configomat.sh "LDAP_" "${f}" done notify 'inf' "Configuring dovecot LDAP" declare -A _dovecot_ldap_mapping _dovecot_ldap_mapping["DOVECOT_BASE"]="${DOVECOT_BASE:="${LDAP_SEARCH_BASE}"}" _dovecot_ldap_mapping["DOVECOT_DN"]="${DOVECOT_DN:="${LDAP_BIND_DN}"}" _dovecot_ldap_mapping["DOVECOT_DNPASS"]="${DOVECOT_DNPASS:="${LDAP_BIND_PW}"}" _dovecot_ldap_mapping["DOVECOT_HOSTS"]="${DOVECOT_HOSTS:="${LDAP_SERVER_HOST}"}" # Not sure whether this can be the same or not # _dovecot_ldap_mapping["DOVECOT_PASS_FILTER"]="${DOVECOT_PASS_FILTER:="${LDAP_QUERY_FILTER_USER}"}" # _dovecot_ldap_mapping["DOVECOT_USER_FILTER"]="${DOVECOT_USER_FILTER:="${LDAP_QUERY_FILTER_USER}"}" for var in ${!_dovecot_ldap_mapping[@]}; do export $var=${_dovecot_ldap_mapping[$var]} done configomat.sh "DOVECOT_" "/etc/dovecot/dovecot-ldap.conf.ext" # Add domainname to vhost. echo $DOMAINNAME >> /tmp/vhost.tmp notify 'inf' "Enabling dovecot LDAP authentification" sed -i -e '/\!include auth-ldap\.conf\.ext/s/^#//' /etc/dovecot/conf.d/10-auth.conf sed -i -e '/\!include auth-passwdfile\.inc/s/^/#/' /etc/dovecot/conf.d/10-auth.conf notify 'inf' "Configuring LDAP" [ -f /etc/postfix/ldap-users.cf ] && \ postconf -e "virtual_mailbox_maps = ldap:/etc/postfix/ldap-users.cf" || \ notify 'inf' "==> Warning: /etc/postfix/ldap-user.cf not found" [ -f /etc/postfix/ldap-domains.cf ] && \ postconf -e "virtual_mailbox_domains = /etc/postfix/vhost, ldap:/etc/postfix/ldap-domains.cf" || \ notify 'inf' "==> Warning: /etc/postfix/ldap-domains.cf not found" [ -f /etc/postfix/ldap-aliases.cf -a -f /etc/postfix/ldap-groups.cf ] && \ postconf -e "virtual_alias_maps = ldap:/etc/postfix/ldap-aliases.cf, ldap:/etc/postfix/ldap-groups.cf" || \ notify 'inf' "==> Warning: /etc/postfix/ldap-aliases.cf or /etc/postfix/ldap-groups.cf not found" return 0 } function _setup_postgrey() { notify 'inf' "Configuring postgrey" sed -i -e 's/bl.spamcop.net$/bl.spamcop.net, check_policy_service inet:127.0.0.1:10023/' /etc/postfix/main.cf sed -i -e "s/\"--inet=127.0.0.1:10023\"/\"--inet=127.0.0.1:10023 --delay=$POSTGREY_DELAY --max-age=$POSTGREY_MAX_AGE\"/" /etc/default/postgrey TEXT_FOUND=`grep -i "POSTGREY_TEXT" /etc/default/postgrey | wc -l` if [ $TEXT_FOUND -eq 0 ]; then printf "POSTGREY_TEXT=\"$POSTGREY_TEXT\"\n\n" >> /etc/default/postgrey fi if [ -f /tmp/docker-mailserver/whitelist_clients.local ]; then cp -f /tmp/docker-mailserver/whitelist_clients.local /etc/postgrey/whitelist_clients.local fi } function _setup_postfix_sasl() { if [[ ${ENABLE_SASLAUTHD} == 1 ]];then [ ! -f /etc/postfix/sasl/smtpd.conf ] && cat > /etc/postfix/sasl/smtpd.conf << EOF pwcheck_method: saslauthd mech_list: plain login EOF fi # cyrus sasl or dovecot sasl if [[ ${ENABLE_SASLAUTHD} == 1 ]] || [[ ${SMTP_ONLY} == 0 ]];then sed -i -e 's|^smtpd_sasl_auth_enable[[:space:]]\+.*|smtpd_sasl_auth_enable = yes|g' /etc/postfix/main.cf else sed -i -e 's|^smtpd_sasl_auth_enable[[:space:]]\+.*|smtpd_sasl_auth_enable = no|g' /etc/postfix/main.cf fi return 0 } function _setup_saslauthd() { notify 'task' "Setting up Saslauthd" notify 'inf' "Configuring Cyrus SASL" # checking env vars and setting defaults [ -z "$SASLAUTHD_MECHANISMS" ] && SASLAUTHD_MECHANISMS=pam [ "$SASLAUTHD_MECHANISMS" = ldap -a -z "$SASLAUTHD_LDAP_SEARCH_BASE" ] && SASLAUTHD_MECHANISMS=pam [ -z "$SASLAUTHD_LDAP_SERVER" ] && SASLAUTHD_LDAP_SERVER=localhost [ -z "$SASLAUTHD_LDAP_FILTER" ] && SASLAUTHD_LDAP_FILTER='(&(uniqueIdentifier=%u)(mailEnabled=TRUE))' ([ -z "$SASLAUTHD_LDAP_SSL" ] || [ $SASLAUTHD_LDAP_SSL == 0 ]) && SASLAUTHD_LDAP_PROTO='ldap://' || SASLAUTHD_LDAP_PROTO='ldaps://' if [ ! -f /etc/saslauthd.conf ]; then notify 'inf' "Creating /etc/saslauthd.conf" cat > /etc/saslauthd.conf << EOF ldap_servers: ${SASLAUTHD_LDAP_PROTO}${SASLAUTHD_LDAP_SERVER} ldap_auth_method: bind ldap_bind_dn: ${SASLAUTHD_LDAP_BIND_DN} ldap_bind_pw: ${SASLAUTHD_LDAP_PASSWORD} ldap_search_base: ${SASLAUTHD_LDAP_SEARCH_BASE} ldap_filter: ${SASLAUTHD_LDAP_FILTER} ldap_referrals: yes log_level: 10 EOF fi sed -i \ -e "/^[^#].*smtpd_sasl_type.*/s/^/#/g" \ -e "/^[^#].*smtpd_sasl_path.*/s/^/#/g" \ /etc/postfix/master.cf sed -i \ -e "/smtpd_sasl_path =.*/d" \ -e "/smtpd_sasl_type =.*/d" \ -e "/dovecot_destination_recipient_limit =.*/d" \ /etc/postfix/main.cf gpasswd -a postfix sasl } function _setup_postfix_aliases() { notify 'task' 'Setting up Postfix Aliases' echo -n > /etc/postfix/virtual echo -n > /etc/postfix/regexp if [ -f /tmp/docker-mailserver/postfix-virtual.cf ]; then # Copying virtual file cp -f /tmp/docker-mailserver/postfix-virtual.cf /etc/postfix/virtual while read from to do # Setting variables for better readability uname=$(echo ${from} | cut -d @ -f1) domain=$(echo ${from} | cut -d @ -f2) # if they are equal it means the line looks like: "user1 other@domain.tld" test "$uname" != "$domain" && echo ${domain} >> /tmp/vhost.tmp done < /tmp/docker-mailserver/postfix-virtual.cf else notify 'inf' "Warning 'config/postfix-virtual.cf' is not provided. No mail alias/forward created." fi if [ -f /tmp/docker-mailserver/postfix-regexp.cf ]; then # Copying regexp alias file notify 'inf' "Adding regexp alias file postfix-regexp.cf" cp -f /tmp/docker-mailserver/postfix-regexp.cf /etc/postfix/regexp sed -i -e '/^virtual_alias_maps/{ s/ regexp:.*// s/$/ regexp:\/etc\/postfix\/regexp/ }' /etc/postfix/main.cf fi } function _setup_dkim() { notify 'task' 'Setting up DKIM' mkdir -p /etc/opendkim && touch /etc/opendkim/SigningTable # Check if keys are already available if [ -e "/tmp/docker-mailserver/opendkim/KeyTable" ]; then cp -a /tmp/docker-mailserver/opendkim/* /etc/opendkim/ notify 'inf' "DKIM keys added for: `ls -C /etc/opendkim/keys/`" notify 'inf' "Changing permissions on /etc/opendkim" chown -R opendkim:opendkim /etc/opendkim/ # And make sure permissions are right chmod -R 0700 /etc/opendkim/keys/ else notify 'warn' "No DKIM key provided. Check the documentation to find how to get your keys." local _f_keytable="/etc/opendkim/KeyTable" [ ! -f "$_f_keytable" ] && touch "$_f_keytable" fi } function _setup_ssl() { notify 'task' 'Setting up SSL' # SSL Configuration case $SSL_TYPE in "letsencrypt" ) # letsencrypt folders and files mounted in /etc/letsencrypt if [ -e "/etc/letsencrypt/live/$HOSTNAME/cert.pem" ] \ && [ -e "/etc/letsencrypt/live/$HOSTNAME/fullchain.pem" ]; then KEY="" if [ -e "/etc/letsencrypt/live/$HOSTNAME/privkey.pem" ]; then KEY="privkey" elif [ -e "/etc/letsencrypt/live/$HOSTNAME/key.pem" ]; then KEY="key" fi if [ -n "$KEY" ]; then notify 'inf' "Adding $HOSTNAME SSL certificate" # Postfix configuration sed -i -r 's~smtpd_tls_cert_file=/etc/ssl/certs/ssl-cert-snakeoil.pem~smtpd_tls_cert_file=/etc/letsencrypt/live/'$HOSTNAME'/fullchain.pem~g' /etc/postfix/main.cf sed -i -r 's~smtpd_tls_key_file=/etc/ssl/private/ssl-cert-snakeoil.key~smtpd_tls_key_file=/etc/letsencrypt/live/'$HOSTNAME'/'"$KEY"'\.pem~g' /etc/postfix/main.cf # Dovecot configuration sed -i -e 's~ssl_cert = /etc/postfix/vhost && rm /tmp/vhost.tmp fi } function _setup_docker_permit() { notify 'task' 'Setting up PERMIT_DOCKER Option' container_ip=$(ip addr show eth0 | grep 'inet ' | sed 's/[^0-9\.\/]*//g' | cut -d '/' -f 1) container_network="$(echo $container_ip | cut -d '.' -f1-2).0.0" case $PERMIT_DOCKER in "host" ) notify 'inf' "Adding $container_network/16 to my networks" postconf -e "$(postconf | grep '^mynetworks =') $container_network/16" echo $container_network/16 >> /etc/opendmarc/ignore.hosts echo $container_network/16 >> /etc/opendkim/TrustedHosts ;; "network" ) notify 'inf' "Adding docker network in my networks" postconf -e "$(postconf | grep '^mynetworks =') 172.16.0.0/12" echo 172.16.0.0/12 >> /etc/opendmarc/ignore.hosts echo 172.16.0.0/12 >> /etc/opendkim/TrustedHosts ;; * ) notify 'inf' "Adding container ip in my networks" postconf -e "$(postconf | grep '^mynetworks =') $container_ip/32" echo $container_ip/32 >> /etc/opendmarc/ignore.hosts echo $container_ip/32 >> /etc/opendkim/TrustedHosts ;; esac } function _setup_postfix_virtual_transport() { notify 'task' 'Setting up Postfix virtual transport' [ -z "${POSTFIX_DAGENT}" ] && \ echo "${POSTFIX_DAGENT} not set." && \ kill -15 `cat /var/run/supervisord.pid` && return 1 postconf -e "virtual_transport = ${POSTFIX_DAGENT}" } function _setup_postfix_override_configuration() { notify 'task' 'Setting up Postfix Override configuration' if [ -f /tmp/docker-mailserver/postfix-main.cf ]; then while read line; do # all valid postfix options start with a lower case letter # http://www.postfix.org/postconf.5.html if [[ "$line" =~ ^[a-z] ]]; then postconf -e "$line" fi done < /tmp/docker-mailserver/postfix-main.cf notify 'inf' "Loaded 'config/postfix-main.cf'" else notify 'inf' "No extra postfix settings loaded because optional '/tmp/docker-mailserver/postfix-main.cf' not provided." fi if [ -f /tmp/docker-mailserver/postfix-master.cf ]; then while read line; do if [[ "$line" =~ ^[a-z] ]]; then postconf -P "$line" fi done < /tmp/docker-mailserver/postfix-master.cf notify 'inf' "Loaded 'config/postfix-master.cf'" else notify 'inf' "No extra postfix settings loaded because optional '/tmp/docker-mailserver/postfix-master.cf' not provided." fi notify 'inf' "set the compatibility level to 2" postconf compatibility_level=2 } function _setup_postfix_sasl_password() { notify 'task' 'Setting up Postfix SASL Password' # Support general SASL password rm -f /etc/postfix/sasl_passwd if [ ! -z "$SASL_PASSWD" ]; then echo "$SASL_PASSWD" >> /etc/postfix/sasl_passwd fi # Install SASL passwords if [ -f /etc/postfix/sasl_passwd ]; then chown root:root /etc/postfix/sasl_passwd chmod 0600 /etc/postfix/sasl_passwd notify 'inf' "Loaded SASL_PASSWD" else notify 'inf' "Warning: 'SASL_PASSWD' is not provided. /etc/postfix/sasl_passwd not created." fi } function _setup_postfix_relay_amazon_ses() { notify 'task' 'Setting up Postfix Relay Amazon SES' if [ -z "$AWS_SES_PORT" ];then AWS_SES_PORT=25 fi notify 'inf' "Setting up outgoing email via AWS SES host $AWS_SES_HOST:$AWS_SES_PORT" echo "[$AWS_SES_HOST]:$AWS_SES_PORT $AWS_SES_USERPASS" >> /etc/postfix/sasl_passwd postconf -e \ "relayhost = [$AWS_SES_HOST]:$AWS_SES_PORT" \ "smtp_sasl_auth_enable = yes" \ "smtp_sasl_security_options = noanonymous" \ "smtp_sasl_password_maps = texthash:/etc/postfix/sasl_passwd" \ "smtp_use_tls = yes" \ "smtp_tls_security_level = encrypt" \ "smtp_tls_note_starttls_offer = yes" \ "smtp_tls_CAfile = /etc/ssl/certs/ca-certificates.crt" } function _setup_postfix_dhparam() { notify 'task' 'Setting up Postfix dhparam' if [ "$ONE_DIR" = 1 ];then DHPARAMS_FILE=/var/mail-state/lib-postfix/dhparams.pem if [ ! -f $DHPARAMS_FILE ]; then notify 'inf' "Generate new dhparams for postfix" mkdir -p $(dirname "$DHPARAMS_FILE") openssl dhparam -out $DHPARAMS_FILE 2048 else notify 'inf' "Use dhparams that was generated previously" fi # Copy from the state directpry to the working location rm /etc/postfix/dhparams.pem && cp $DHPARAMS_FILE /etc/postfix/dhparams.pem else notify 'inf' "No state dir, we use the dhparams generated on image creation" fi } function _setup_security_stack() { notify 'task' "Setting up Security Stack" # recreate auto-generated file dms_amavis_file="/etc/amavis/conf.d/61-dms_auto_generated" echo "# WARNING: this file is auto-generated." > $dms_amavis_file echo "use strict;" >> $dms_amavis_file # Spamassassin if [ "$ENABLE_SPAMASSASSIN" = 0 ]; then notify 'warn' "Spamassassin is disabled. You can enable it with 'ENABLE_SPAMASSASSIN=1'" echo "@bypass_spam_checks_maps = (1);" >> $dms_amavis_file elif [ "$ENABLE_SPAMASSASSIN" = 1 ]; then notify 'inf' "Enabling and configuring spamassassin" SA_TAG=${SA_TAG:="2.0"} && sed -i -r 's/^\$sa_tag_level_deflt (.*);/\$sa_tag_level_deflt = '$SA_TAG';/g' /etc/amavis/conf.d/20-debian_defaults SA_TAG2=${SA_TAG2:="6.31"} && sed -i -r 's/^\$sa_tag2_level_deflt (.*);/\$sa_tag2_level_deflt = '$SA_TAG2';/g' /etc/amavis/conf.d/20-debian_defaults SA_KILL=${SA_KILL:="6.31"} && sed -i -r 's/^\$sa_kill_level_deflt (.*);/\$sa_kill_level_deflt = '$SA_KILL';/g' /etc/amavis/conf.d/20-debian_defaults SA_SPAM_SUBJECT=${SA_SPAM_SUBJECT:="***SPAM*** "} && sed -i -r 's/^\$sa_spam_subject_tag (.*);/\$sa_spam_subject_tag = '"'$SA_SPAM_SUBJECT'"';/g' /etc/amavis/conf.d/20-debian_defaults test -e /tmp/docker-mailserver/spamassassin-rules.cf && cp /tmp/docker-mailserver/spamassassin-rules.cf /etc/spamassassin/ fi # Clamav if [ "$ENABLE_CLAMAV" = 0 ]; then notify 'warn' "Clamav is disabled. You can enable it with 'ENABLE_CLAMAV=1'" echo "@bypass_virus_checks_maps = (1);" >> $dms_amavis_file elif [ "$ENABLE_CLAMAV" = 1 ]; then notify 'inf' "Enabling clamav" fi echo "1; # ensure a defined return" >> $dms_amavis_file # Fail2ban if [ "$ENABLE_FAIL2BAN" = 1 ]; then notify 'inf' "Fail2ban enabled" test -e /tmp/docker-mailserver/fail2ban-jail.cf && cp /tmp/docker-mailserver/fail2ban-jail.cf /etc/fail2ban/jail.local else # Disable logrotate config for fail2ban if not enabled rm -f /etc/logrotate.d/fail2ban fi # Fix cron.daily for spamassassin sed -i -e 's~invoke-rc.d spamassassin reload~/etc/init\.d/spamassassin reload~g' /etc/cron.daily/spamassassin # Copy user provided configuration files if provided if [ -f /tmp/docker-mailserver/amavis.cf ]; then cp /tmp/docker-mailserver/amavis.cf /etc/amavis/conf.d/50-user fi } function _setup_elk_forwarder() { notify 'task' 'Setting up Elk forwarder' ELK_PORT=${ELK_PORT:="5044"} ELK_HOST=${ELK_HOST:="elk"} notify 'inf' "Enabling log forwarding to ELK ($ELK_HOST:$ELK_PORT)" cat /etc/filebeat/filebeat.yml.tmpl \ | sed "s@\$ELK_HOST@$ELK_HOST@g" \ | sed "s@\$ELK_PORT@$ELK_PORT@g" \ > /etc/filebeat/filebeat.yml } function _setup_environment() { notify 'task' 'Setting up /etc/environment' local banner="# docker environment" local var if ! grep -q "$banner" /etc/environment; then echo $banner >> /etc/environment for var in "VIRUSMAILS_DELETE_DELAY"; do echo "$var=${!var}" >> /etc/environment done fi } ########################################################################## # << Setup Stack ########################################################################## ########################################################################## # >> Fix Stack # # Description: Place functions for temporary workarounds and fixes here ########################################################################## function fix() { notify 'taskgrg' "Post-configuration checks..." for _func in "${FUNCS_FIX[@]}";do $_func [ $? != 0 ] && defunc done notify 'taskgrg' "Remove leftover pid files from a stop/start" rm -rf /var/run/*.pid /var/run/*/*.pid } function _fix_var_mail_permissions() { notify 'task' 'Checking /var/mail permissions' # Fix permissions, but skip this if 3 levels deep the user id is already set if [ `find /var/mail -maxdepth 3 -a \( \! -user 5000 -o \! -group 5000 \) | grep -c .` != 0 ]; then notify 'inf' "Fixing /var/mail permissions" chown -R 5000:5000 /var/mail else notify 'inf' "Permissions in /var/mail look OK" return 0 fi } function _fix_var_amavis_permissions() { if [[ "$ONE_DIR" -eq 0 ]]; then amavis_state_dir=/var/lib/amavis else amavis_state_dir=/var/mail-state/lib-amavis fi notify 'task' 'Checking $amavis_state_dir permissions' amavis_permissions_status=$(find -H $amavis_state_dir -maxdepth 3 -a \( \! -user amavis -o \! -group amavis \)) if [ -n "$amavis_permissions_status" ]; then notify 'inf' "Fixing $amavis_state_dir permissions" chown -hR amavis:amavis $amavis_state_dir else notify 'inf' "Permissions in $amavis_state_dir look OK" return 0 fi } function _fix_cleanup_clamav() { notify 'task' 'Cleaning up disabled Clamav' rm -f /etc/logrotate.d/clamav-* rm -f /etc/cron.d/freshclam } ########################################################################## # << Fix Stack ########################################################################## ########################################################################## # >> Misc Stack # # Description: Place functions that do not fit in the sections above here ########################################################################## function misc() { notify 'taskgrp' 'Starting Misc' for _func in "${FUNCS_MISC[@]}";do $_func [ $? != 0 ] && defunc done } function _misc_save_states() { # consolidate all states into a single directory (`/var/mail-state`) to allow persistence using docker volumes statedir=/var/mail-state if [ "$ONE_DIR" = 1 -a -d $statedir ]; then notify 'inf' "Consolidating all state onto $statedir" for d in /var/spool/postfix /var/lib/postfix /var/lib/amavis /var/lib/clamav /var/lib/spamassasin /var/lib/fail2ban /var/lib/postgrey; do dest=$statedir/`echo $d | sed -e 's/.var.//; s/\//-/g'` if [ -d $dest ]; then notify 'inf' " Destination $dest exists, linking $d to it" rm -rf $d ln -s $dest $d elif [ -d $d ]; then notify 'inf' " Moving contents of $d to $dest:" `ls $d` mv $d $dest ln -s $dest $d else notify 'inf' " Linking $d to $dest" mkdir -p $dest ln -s $dest $d fi done notify 'inf' 'Fixing /var/mail-state/* permissions' chown -R clamav /var/mail-state/lib-clamav chown -R postfix /var/mail-state/lib-postfix chown -R postgrey /var/mail-state/lib-postgrey chown -R debian-spamd /var/mail-state/lib-spamassasin chown -R postfix /var/mail-state/spool-postfix fi } ########################################################################## # >> Start Daemons ########################################################################## function start_daemons() { notify 'taskgrp' 'Starting mail server' for _func in "${DAEMONS_START[@]}";do $_func [ $? != 0 ] && defunc done } function _start_daemons_cron() { notify 'task' 'Starting cron' 'n' supervisorctl start cron } function _start_daemons_rsyslog() { notify 'task' 'Starting rsyslog ' 'n' supervisorctl start rsyslog } function _start_daemons_saslauthd() { notify 'task' 'Starting saslauthd' 'n' supervisorctl start "saslauthd_${SASLAUTHD_MECHANISMS}" } function _start_daemons_fail2ban() { notify 'task' 'Starting fail2ban ' 'n' 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 ' 'n' supervisorctl start opendkim } function _start_daemons_opendmarc() { notify 'task' 'Starting opendmarc ' 'n' supervisorctl start opendmarc } function _start_daemons_postfix() { notify 'task' 'Starting postfix' 'n' supervisorctl start postfix } function _start_daemons_dovecot() { # Here we are starting sasl and imap, not pop3 because it's disabled by default notify 'task' 'Starting dovecot services' 'n' if [ "$ENABLE_POP3" = 1 ]; then notify 'task' 'Starting pop3 services' 'n' mv /etc/dovecot/protocols.d/pop3d.protocol.disab /etc/dovecot/protocols.d/pop3d.protocol fi if [ -f /tmp/docker-mailserver/dovecot.cf ]; then cp /tmp/docker-mailserver/dovecot.cf /etc/dovecot/local.conf fi supervisorctl start dovecot # @TODO fix: on integration test # doveadm: Error: userdb lookup: connect(/var/run/dovecot/auth-userdb) failed: No such file or directory # doveadm: Fatal: user listing failed #if [ "$ENABLE_LDAP" != 1 ]; then #echo "Listing users" #/usr/sbin/dovecot user '*' #fi } function _start_daemons_filebeat() { notify 'task' 'Starting filebeat' 'n' supervisorctl start filebeat } function _start_daemons_fetchmail() { notify 'task' 'Starting fetchmail' 'n' /usr/local/bin/setup-fetchmail supervisorctl start fetchmail } function _start_daemons_clamav() { notify 'task' 'Starting clamav' 'n' supervisorctl start clamav } function _start_daemons_postgrey() { notify 'task' 'Starting postgrey' 'n' rm -f /var/run/postgrey/postgrey.pid supervisorctl start postgrey } function _start_daemons_amavis() { notify 'task' 'Starting amavis' 'n' supervisorctl start amavis } ########################################################################## # << Start Daemons ########################################################################## # !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! # ! CARE --> DON'T CHANGE, unless you exactly know what you are doing # !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! # >> if [[ ${DEFAULT_VARS["DMS_DEBUG"]} == 1 ]]; then notify 'taskgrp' "" notify 'taskgrp' "#" notify 'taskgrp' "#" notify 'taskgrp' "# ENV" notify 'taskgrp' "#" notify 'taskgrp' "#" notify 'taskgrp' "" printenv fi notify 'taskgrp' "" notify 'taskgrp' "#" notify 'taskgrp' "#" notify 'taskgrp' "# docker-mailserver" notify 'taskgrp' "#" notify 'taskgrp' "#" notify 'taskgrp' "" register_functions check setup fix misc start_daemons notify 'taskgrp' "" notify 'taskgrp' "#" notify 'taskgrp' "# $HOSTNAME is up and running" notify 'taskgrp' "#" notify 'taskgrp' "" touch /var/log/mail/mail.log tail -fn 0 /var/log/mail/mail.log # !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! # ! CARE --> DON'T CHANGE, unless you exactly know what you are doing # !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! # << exit 0