Merge pull request #2155 from docker-mailserver/revert-2104-check-for-changes-performance

Revert "check-for-changes: performance improvements + wait for settle"
2024-01-19 02:48:50 +00:00 · 2021-08-28 20:11:19 -04:00 · 2021-08-28 20:11:19 -04:00 · bbd7ff0cd4
parent 784ec60612 dff7e428c0
commit bbd7ff0cd4
9 changed files with 188 additions and 216 deletions
--- a/2
+++ b/2
@ -4,6 +4,8 @@ NAME   ?= mailserver-testing:ci
 VCS_REF = $(shell git rev-parse --short HEAD)
 VCS_VER = $(shell git describe --tags --contains --always)

+export CDIR = $(shell pwd)
+
 # -----------------------------------------------
 # --- Generic Build Targets ---------------------
 # -----------------------------------------------
--- a/target/bin/addmailuser
+++ b/target/bin/addmailuser
@ -63,3 +63,13 @@ echo "${FULL_EMAIL}|${HASH}" >> "${DATABASE}"

 USER="${FULL_EMAIL%@*}"
 DOMAIN="${FULL_EMAIL#*@}"
+
+# Tests fail if the creation of /var/mail/${DOMAIN}/${USER} doesn't happen fast enough after addmailuser executes (check-for-changes.sh race-condition)
+if [[ -e "/tmp/docker-mailserver-config-chksum" ]] # Prevent infinite loop in tests like "checking accounts: user3 should have been added to /tmp/docker-mailserver/postfix-accounts.cf even when that file does not exist"
+then
+  while [[ ! -d "/var/mail/${DOMAIN}/${USER}" ]]
+  do
+    echo "Waiting for dovecot to create /var/mail/${DOMAIN}/${USER}..."
+    sleep 1
+  done
+fi
--- a/target/bin/delmailuser
+++ b/target/bin/delmailuser
@ -154,6 +154,7 @@ use 'sudo docker exec mailserver rm -R /var/mail/${DOMAIN}/${USER}'"
    rmdir "/var/mail/${DOMAIN}" 2>/dev/null || true
  else
    echo "Mailbox directory '/var/mail/${DOMAIN}/${USER}' did not exist." >&2
+    ERROR=true
  fi

  ${ERROR} && errex 'See the messages above.'
--- a/target/scripts/check-for-changes.sh
+++ b/target/scripts/check-for-changes.sh
@ -41,9 +41,6 @@ PM_ADDRESS="${POSTMASTER_ADDRESS:=postmaster@${DOMAINNAME}}"
 _notify 'inf' "${LOG_DATE} Using postmaster address ${PM_ADDRESS}"
 sleep 10

-CMP_RESULT=
-LAST_CMP_RESULT=
-
 while true
 do
  LOG_DATE=$(date +"%Y-%m-%d %H:%M:%S ")
@ -53,231 +50,195 @@ do

  # get chksum and check it, no need to lock config yet
  _monitored_files_checksums >"${CHKSUM_FILE}.new"
-  CMP_RESULT=$(cmp -- "${CHKSUM_FILE}" "${CHKSUM_FILE}.new")
-  if [[ -n "${CMP_RESULT}" ]] # If there is a difference between checksum files
+  cmp --silent -- "${CHKSUM_FILE}" "${CHKSUM_FILE}.new"
+  # cmp return codes
+  # 0 – files are identical
+  # 1 – files differ
+  # 2 – inaccessible or missing argument
+  if [ $? -eq 1 ]
  then
-    # If the current run's CMP_RESULT is equal to the LAST_CMP_RESULT, changes have settled and we can safely proceed
-    # This prevents multiple restarts of postfix from happening all at once and causing problems or delays
-    if [[ "${CMP_RESULT}" == "${LAST_CMP_RESULT}" ]]
+    _notify 'inf' "${LOG_DATE} Change detected"
+    CHANGED=$(grep -Fxvf "${CHKSUM_FILE}" "${CHKSUM_FILE}.new" | sed 's/^[^ ]\+  //')
+
+    # Bug alert! This overwrites the alias set by start-mailserver.sh
+    # Take care that changes in one script are propagated to the other
+
+    # ! NEEDS FIX -----------------------------------------
+    # TODO FIX --------------------------------------------
+    # ! NEEDS EXTENSIONS ----------------------------------
+    # TODO Perform updates below conditionally too --------
+    # Also note that changes are performed in place and are not atomic
+    # We should fix that and write to temporary files, stop, swap and start
+
+    for FILE in ${CHANGED}
+    do
+      case "${FILE}" in
+        "/etc/letsencrypt/acme.json" )
+          for CERTDOMAIN in ${SSL_DOMAIN} ${HOSTNAME} ${DOMAINNAME}
+          do
+            _extract_certs_from_acme "${CERTDOMAIN}" && break
+          done
+          ;;
+
+        * )
+          _notify 'warn' 'File not found for certificate in check_for_changes.sh'
+          ;;
+
+      esac
+    done
+
+    # regenerate postix aliases
+    echo "root: ${PM_ADDRESS}" >/etc/aliases
+    if [[ -f /tmp/docker-mailserver/postfix-aliases.cf ]]
    then
-      _notify 'inf' "${LOG_DATE} Changes to checksum files settled"
-      CHANGED=$(grep -Fxvf "${CHKSUM_FILE}" "${CHKSUM_FILE}.new" | sed 's/^[^ ]\+  //')
-      WAIT_FOR_PIDS=()
-      # Bug alert! This overwrites the alias set by start-mailserver.sh
-      # Take care that changes in one script are propagated to the other
+      cat /tmp/docker-mailserver/postfix-aliases.cf >>/etc/aliases
+    fi
+    postalias /etc/aliases

-      # ! NEEDS FIX -----------------------------------------
-      # TODO FIX --------------------------------------------
-      # ! NEEDS EXTENSIONS ----------------------------------
-      # TODO Perform updates below conditionally too --------
-      # Also note that changes are performed in place and are not atomic
-      # We should fix that and write to temporary files, stop, swap and start
+    # regenerate postfix accounts
+    : >/etc/postfix/vmailbox
+    : >/etc/dovecot/userdb

-      for FILE in ${CHANGED}
-      do
-        case "${FILE}" in
-          "/etc/letsencrypt/acme.json" )
-            {
-              for CERTDOMAIN in ${SSL_DOMAIN} ${HOSTNAME} ${DOMAINNAME}
-              do
-                _extract_certs_from_acme "${CERTDOMAIN}" && break
-              done
-            } &
-            WAIT_FOR_PIDS+=($!)
-            ;;
+    if [[ -f /tmp/docker-mailserver/postfix-accounts.cf ]] && [[ ${ENABLE_LDAP} -ne 1 ]]
+    then
+      sed -i 's/\r//g' /tmp/docker-mailserver/postfix-accounts.cf
+      echo "# WARNING: this file is auto-generated. Modify config/postfix-accounts.cf to edit user list." >/etc/postfix/vmailbox

-          * )
-            _notify 'warn' 'File not found for certificate in check_for_changes.sh'
-            ;;
-
-        esac
-      done
-
-      # regenerate postix aliases
-      {
-        echo "root: ${PM_ADDRESS}" >/etc/aliases
-        if [[ -f /tmp/docker-mailserver/postfix-aliases.cf ]]
-        then
-          cat /tmp/docker-mailserver/postfix-aliases.cf >>/etc/aliases
-        fi
-        postalias /etc/aliases
-      } &
-      WAIT_FOR_PIDS+=($!)
-
-      # regenerate postfix accounts
-      {
-        : >/etc/postfix/vmailbox
-        : >/etc/dovecot/userdb
-      } &
-      WAIT_FOR_PIDS+=($!)
-
-      if [[ -f /tmp/docker-mailserver/postfix-accounts.cf ]] && [[ ${ENABLE_LDAP} -ne 1 ]]
-      then
-        sed -i 's/\r//g' /tmp/docker-mailserver/postfix-accounts.cf
-        echo "# WARNING: this file is auto-generated. Modify config/postfix-accounts.cf to edit user list." >/etc/postfix/vmailbox
-
-        # Checking that /tmp/docker-mailserver/postfix-accounts.cf ends with a newline
-        # shellcheck disable=SC1003
-        sed -i -e '$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
-
-        # rebuild relay host
-        if [[ -n ${RELAY_HOST} ]]
-        then
-          # keep old config
-          : >/etc/postfix/sasl_passwd
-          if [[ -n ${SASL_PASSWD} ]]
-          then
-            echo "${SASL_PASSWD}" >>/etc/postfix/sasl_passwd
-          fi
-
-          # add domain-specific auth from config file
-          if [[ -f /tmp/docker-mailserver/postfix-sasl-password.cf ]]
-          then
-            while read -r LINE
-            do
-              if ! grep -q -e "\s*#" <<< "${LINE}"
-              then
-                echo "${LINE}" >>/etc/postfix/sasl_passwd
-              fi
-            done < <(grep -v "^\s*$\|^\s*\#" /tmp/docker-mailserver/postfix-sasl-password.cf || true)
-          fi
-
-          # add default relay
-          if [[ -n "${RELAY_USER}" ]] && [[ -n "${RELAY_PASSWORD}" ]]
-          then
-            echo "[${RELAY_HOST}]:${RELAY_PORT}		${RELAY_USER}:${RELAY_PASSWORD}" >>/etc/postfix/sasl_passwd
-          fi
-        fi
-
-        # creating users ; 'pass' is encrypted
-        # comments and empty lines are ignored
-        while IFS=$'|' read -r LOGIN PASS USER_ATTRIBUTES
-        do
-          USER=$(echo "${LOGIN}" | cut -d @ -f1)
-          DOMAIN=$(echo "${LOGIN}" | cut -d @ -f2)
-
-          # test if user has a defined quota
-          if [[ -f /tmp/docker-mailserver/dovecot-quotas.cf ]]
-          then
-            declare -a USER_QUOTA
-            IFS=':' ; read -r -a USER_QUOTA < <(grep "${USER}@${DOMAIN}:" -i /tmp/docker-mailserver/dovecot-quotas.cf)
-            unset IFS
-
-            [[ ${#USER_QUOTA[@]} -eq 2 ]] && USER_ATTRIBUTES="${USER_ATTRIBUTES} userdb_quota_rule=*:bytes=${USER_QUOTA[1]}"
-          fi
-
-          echo "${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}::${USER_ATTRIBUTES}" >>/etc/dovecot/userdb
-          mkdir -p "/var/mail/${DOMAIN}/${USER}"
-
-          if [[ -e /tmp/docker-mailserver/${LOGIN}.dovecot.sieve ]]
-          then
-            cp "/tmp/docker-mailserver/${LOGIN}.dovecot.sieve" "/var/mail/${DOMAIN}/${USER}/.dovecot.sieve"
-          fi
-
-          echo "${DOMAIN}" >>/tmp/vhost.tmp
-        done < <(grep -v "^\s*$\|^\s*\#" /tmp/docker-mailserver/postfix-accounts.cf)
-      fi
+      # Checking that /tmp/docker-mailserver/postfix-accounts.cf ends with a newline
+      # shellcheck disable=SC1003
+      sed -i -e '$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

+      # rebuild relay host
      if [[ -n ${RELAY_HOST} ]]
      then
-        _populate_relayhost_map &
-        WAIT_FOR_PIDS+=($!)
-      fi
-
-      if [[ -f /etc/postfix/sasl_passwd ]]
-      then
-        {
-          chown root:root /etc/postfix/sasl_passwd
-          chmod 0600 /etc/postfix/sasl_passwd
-        } &
-        WAIT_FOR_PIDS+=($!)
-      fi
-
-      if [[ -f postfix-virtual.cf ]]
-      then
-        # regenerate postfix aliases
-        : >/etc/postfix/virtual
-        : >/etc/postfix/regexp
-
-        if [[ -f /tmp/docker-mailserver/postfix-virtual.cf ]]
+        # keep old config
+        : >/etc/postfix/sasl_passwd
+        if [[ -n ${SASL_PASSWD} ]]
        then
-          cp -f /tmp/docker-mailserver/postfix-virtual.cf /etc/postfix/virtual
-
-          # the `to` seems to be important; don't delete it
-          # shellcheck disable=SC2034
-          while read -r FROM TO
-          do
-            UNAME=$(echo "${FROM}" | cut -d @ -f1)
-            DOMAIN=$(echo "${FROM}" | cut -d @ -f2)
-
-            # if they are equal it means the line looks like: "user1	 other@domain.tld"
-            [ "${UNAME}" != "${DOMAIN}" ] && echo "${DOMAIN}" >>/tmp/vhost.tmp
-          done  < <(grep -v "^\s*$\|^\s*\#" /tmp/docker-mailserver/postfix-virtual.cf || true)
+          echo "${SASL_PASSWD}" >>/etc/postfix/sasl_passwd
        fi

-        if [[ -f /tmp/docker-mailserver/postfix-regexp.cf ]]
+        # add domain-specific auth from config file
+        if [[ -f /tmp/docker-mailserver/postfix-sasl-password.cf ]]
        then
-          cp -f /tmp/docker-mailserver/postfix-regexp.cf /etc/postfix/regexp
-          sed -i -e '/^virtual_alias_maps/{
+          while read -r LINE
+          do
+            if ! grep -q -e "\s*#" <<< "${LINE}"
+            then
+              echo "${LINE}" >>/etc/postfix/sasl_passwd
+            fi
+          done < <(grep -v "^\s*$\|^\s*\#" /tmp/docker-mailserver/postfix-sasl-password.cf || true)
+        fi
+
+        # add default relay
+        if [[ -n "${RELAY_USER}" ]] && [[ -n "${RELAY_PASSWORD}" ]]
+        then
+          echo "[${RELAY_HOST}]:${RELAY_PORT}		${RELAY_USER}:${RELAY_PASSWORD}" >>/etc/postfix/sasl_passwd
+        fi
+      fi
+
+      # creating users ; 'pass' is encrypted
+      # comments and empty lines are ignored
+      while IFS=$'|' read -r LOGIN PASS USER_ATTRIBUTES
+      do
+        USER=$(echo "${LOGIN}" | cut -d @ -f1)
+        DOMAIN=$(echo "${LOGIN}" | cut -d @ -f2)
+
+        # test if user has a defined quota
+        if [[ -f /tmp/docker-mailserver/dovecot-quotas.cf ]]
+        then
+          declare -a USER_QUOTA
+          IFS=':' ; read -r -a USER_QUOTA < <(grep "${USER}@${DOMAIN}:" -i /tmp/docker-mailserver/dovecot-quotas.cf)
+          unset IFS
+
+          [[ ${#USER_QUOTA[@]} -eq 2 ]] && USER_ATTRIBUTES="${USER_ATTRIBUTES} userdb_quota_rule=*:bytes=${USER_QUOTA[1]}"
+        fi
+
+        echo "${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}::${USER_ATTRIBUTES}" >>/etc/dovecot/userdb
+        mkdir -p "/var/mail/${DOMAIN}/${USER}"
+
+        if [[ -e /tmp/docker-mailserver/${LOGIN}.dovecot.sieve ]]
+        then
+          cp "/tmp/docker-mailserver/${LOGIN}.dovecot.sieve" "/var/mail/${DOMAIN}/${USER}/.dovecot.sieve"
+        fi
+
+        echo "${DOMAIN}" >>/tmp/vhost.tmp
+      done < <(grep -v "^\s*$\|^\s*\#" /tmp/docker-mailserver/postfix-accounts.cf)
+    fi
+
+    [[ -n ${RELAY_HOST} ]] && _populate_relayhost_map
+
+
+    if [[ -f /etc/postfix/sasl_passwd ]]
+    then
+      chown root:root /etc/postfix/sasl_passwd
+      chmod 0600 /etc/postfix/sasl_passwd
+    fi
+
+    if [[ -f postfix-virtual.cf ]]
+    then
+      # regenerate postfix aliases
+      : >/etc/postfix/virtual
+      : >/etc/postfix/regexp
+
+      if [[ -f /tmp/docker-mailserver/postfix-virtual.cf ]]
+      then
+        cp -f /tmp/docker-mailserver/postfix-virtual.cf /etc/postfix/virtual
+
+        # the `to` seems to be important; don't delete it
+        # shellcheck disable=SC2034
+        while read -r FROM TO
+        do
+          UNAME=$(echo "${FROM}" | cut -d @ -f1)
+          DOMAIN=$(echo "${FROM}" | cut -d @ -f2)
+
+          # if they are equal it means the line looks like: "user1	 other@domain.tld"
+          [ "${UNAME}" != "${DOMAIN}" ] && echo "${DOMAIN}" >>/tmp/vhost.tmp
+        done  < <(grep -v "^\s*$\|^\s*\#" /tmp/docker-mailserver/postfix-virtual.cf || true)
+      fi
+
+      if [[ -f /tmp/docker-mailserver/postfix-regexp.cf ]]
+      then
+        cp -f /tmp/docker-mailserver/postfix-regexp.cf /etc/postfix/regexp
+        sed -i -e '/^virtual_alias_maps/{
 s/ regexp:.*//
 s/$/ regexp:\/etc\/postfix\/regexp/
 }' /etc/postfix/main.cf
-        fi
      fi
-
-      # shellcheck disable=SC2044
-      for USER_MAIL_LOCATION in $(find /var/mail -maxdepth 3 -a \( \! -user 5000 -o \! -group 5000 \)); do
-        chown -R 5000:5000 "${USER_MAIL_LOCATION}" &
-        WAIT_FOR_PIDS+=($!)
-      done
-
-      # relies on if [[ -f postfix-virtual.cf ]] block
-      if [[ -f /tmp/vhost.tmp ]]
-      then
-        sort < /tmp/vhost.tmp | uniq >/etc/postfix/vhost
-        rm /tmp/vhost.tmp
-      fi
-
-      # shellcheck disable=SC2086
-      wait ${WAIT_FOR_PIDS[*]}
-
-      supervisorctl restart postfix &
-      wait $!
-      # prevent restart of dovecot when smtp_only=1
-      if [[ ${SMTP_ONLY} -ne 1 ]]
-      then
-        supervisorctl restart dovecot &
-        wait $!
-      fi
-
-      LAST_CMP_RESULT=
-      CMP_RESULT=
-
-      # mark changes as applied
-      mv "${CHKSUM_FILE}.new" "${CHKSUM_FILE}"
-
-    else # The files differ...
-      _notify 'inf' "${LOG_DATE} Changes to checksum files detected... Ensuring changes have settled before proceeding..."
-      LAST_CMP_RESULT="${CMP_RESULT}"
-      sleep 5 # The longer the sleep here, the more time there is for users to make changes before a full restart
    fi

-  else # Checksum files don't differ
-    LAST_CMP_RESULT=
+    if [[ -f /tmp/vhost.tmp ]]
+    then
+      sort < /tmp/vhost.tmp | uniq >/etc/postfix/vhost
+      rm /tmp/vhost.tmp
+    fi
+
+    if find /var/mail -maxdepth 3 -a \( \! -user 5000 -o \! -group 5000 \) | read -r
+    then
+      chown -R 5000:5000 /var/mail
+    fi
+
+    supervisorctl restart postfix
+
+    # prevent restart of dovecot when smtp_only=1
+    [[ ${SMTP_ONLY} -ne 1 ]] && supervisorctl restart dovecot
  fi

+  # mark changes as applied
+  mv "${CHKSUM_FILE}.new" "${CHKSUM_FILE}"
  remove_lock "${SCRIPT_NAME}"

+  sleep 1
 done

 exit 0
--- a/target/scripts/postfix-wrapper.sh
+++ b/target/scripts/postfix-wrapper.sh
@ -20,11 +20,11 @@ trap "service postfix stop" SIGINT
 trap "service postfix stop" SIGTERM
 trap "service postfix reload" SIGHUP

-service postfix start &
-wait
+service postfix start
+sleep 5

 # wait until postfix is dead (triggered by trap)
 while kill -0 "$(< /var/spool/postfix/pid/master.pid)"
 do
-  sleep 1
+  sleep 5
 done
--- a/test/bats
+++ b/test/bats
@ -1 +1 @@
-Subproject commit 9f27e3c47d70ad5aa99e4674593155652c195344
+Subproject commit 54e965fa9d269c2b3ff9036d81f32bac3df0edea
--- a/test/mail_ssl_letsencrypt.bats
+++ b/test/mail_ssl_letsencrypt.bats
@ -113,11 +113,9 @@ function teardown_file() {
  cp "$(private_config_path mail_lets_acme_json)/letsencrypt/acme-changed.json" "$(private_config_path mail_lets_acme_json)/acme.json"
  sleep 11
  run docker exec mail_lets_acme_json /bin/bash -c "supervisorctl tail changedetector"
-  assert_output --partial "Changes to checksum files detected"
-  sleep 6
-  run docker exec mail_lets_acme_json /bin/bash -c "supervisorctl tail changedetector"
  assert_output --partial "postfix: stopped"
  assert_output --partial "postfix: started"
+  assert_output --partial "Change detected"

  run docker exec mail_lets_acme_json /bin/bash -c "cat /etc/letsencrypt/live/mail.my-domain.com/key.pem"
  assert_output "$(cat "$(private_config_path mail_lets_acme_json)/letsencrypt/changed/key.pem")"
--- a/test/mail_with_relays.bats
+++ b/test/mail_with_relays.bats
@ -51,7 +51,7 @@ function teardown_file() {
  run docker exec mail_with_relays grep -e domainzero.tld /etc/postfix/relayhost_map
  assert_output ''
  run ./setup.sh -c mail_with_relays email add user0@domainzero.tld password123
-  run_until_success_or_timeout 15 docker exec mail_with_relays grep -e domainzero.tld /etc/postfix/relayhost_map
+  run_until_success_or_timeout 10 docker exec mail_with_relays grep -e domainzero.tld /etc/postfix/relayhost_map
  assert_output -e '^@domainzero.tld[[:space:]]+\[default.relay.com\]:2525$'
 }

@ -59,7 +59,7 @@ function teardown_file() {
  run docker exec mail_with_relays grep -e domain2.tld /etc/postfix/relayhost_map
  assert_output ''
  run ./setup.sh -c mail_with_relays alias add user2@domain2.tld user2@domaintwo.tld
-  run_until_success_or_timeout 15 docker exec mail_with_relays grep -e domain2.tld /etc/postfix/relayhost_map
+  run_until_success_or_timeout 10 docker exec mail_with_relays grep -e domain2.tld /etc/postfix/relayhost_map
  assert_output -e '^@domain2.tld[[:space:]]+\[default.relay.com\]:2525$'
 }

--- a/test/open_dkim.bats
+++ b/test/open_dkim.bats
@ -21,7 +21,7 @@ function setup_file
    --name "${CONTAINER_NAME}" \
 		--cap-add=SYS_PTRACE \
 		-v "${PRIVATE_CONFIG}":/tmp/docker-mailserver \
-		-v "$(pwd)/test/test-files":/tmp/docker-mailserver-test:ro \
+		-v "${CDIR}/test/test-files":/tmp/docker-mailserver-test:ro \
 		-e DEFAULT_RELAY_HOST=default.relay.host.invalid:25 \
 		-e PERMIT_DOCKER=host \
 		-e DMS_DEBUG=0 \