feature(RESTORE): restore SQL database

- require backup already downloaded/copied on local system
- removes need for borg
- far reduced complexity

.idea/.idea.MailcowBackup.dir/.idea/codeStyles/codeStyleConfig.xml

@@ -0,0 +1,5 @@
+<component name="ProjectCodeStyleConfiguration">
+  <state>
+    <option name="PREFERRED_PROJECT_CODE_STYLE" value="Default" />
+  </state>
+</component>

.idea/.idea.MailcowBackup.dir/.idea/indexLayout.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ContentModelUserStore">
+    <attachedFolders />
+    <explicitIncludes />
+    <explicitExcludes />
+  </component>
+</project>

.idea/.idea.MailcowBackup.dir/.idea/riderModule.iml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module type="RIDER_MODULE" version="4">
+  <component name="NewModuleRootManager">
+    <content url="file://$MODULE_DIR$/../.." />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>

.idea/.idea.MailcowBackup.dir/.idea/vcs.xml

@@ -7,4 +7,7 @@
       <inspection_tool class="SubjectLimit" enabled="true" level="ERROR" enabled_by_default="true" />
     </profile>
   </component>
+  <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$" vcs="Git" />
+  </component>
 </project>

backup/restore.sh

@@ -5,7 +5,7 @@
 ### this assumes three things:
 ###     1. standard mailcow-dockerized setup as per the docs
 ###     2. backups made using the backup script from this git repo
-###     3. backups successfully written to your borg repo
+###     3. backups already downloaded from your borg repo
 #######
 
 ### text-formatting presets
@@ -36,18 +36,6 @@ trap trapExit 1 2 3 6
 
 ### functions
 
-badDetails() {
-    if [ "$1" = 'empty' ]; then
-        writeLog 'done' 'error'
-        writeLog 'error' '10' "details:${2} cannot be blank/empty."
-        exitError 130
-    elif [ "$1" = 'dne' ]; then
-        writeLog 'done' 'error'
-        writeLog 'error' '11' "details:${2} file or directory does not exist."
-        exitError 131
-    fi
-}
-
 consoleError() {
     printf "\n%s%s\n" "$err" "$2"
     printf "Exiting.\n\n%s" "$norm"
@@ -127,14 +115,22 @@ writeLog() {
 # script related
 scriptPath="$(CDPATH='' cd -- "$(dirname -- "$0")" && pwd -P)"
 scriptName="$(basename "$0")"
-configDetails="$scriptPath/${scriptName%.*}.details"
 errorCount=0
 warnCount=0
+backupLocation=""
+sqlBackup=""
+restoreMail=1
+restoreSQL=1
+restorePostfix=1
+restoreRedis=1
+restoreRspamd=1
+verbose=0
 # logfile default: same location and name as script but with '.log' extension
 logfile="$scriptPath/${scriptName%.*}.log"
 # mailcow/docker related
 mcConfig='/opt/mailcow-dockerized/mailcow.conf'
 mcDockerCompose='/opt/mailcow-dockerized/docker-compose.yml'
+sqlRunning=0
 dockerStartTimeout=180
 dockerStopTimeout=120
 
@@ -146,10 +142,90 @@ fi
 ### process startup parameters
 while [ $# -gt 0 ]; do
     case "$1" in
-    -h | -\? | --help)
+    -h|-\?|--help)
         # display help
         scriptHelp
         ;;
+    -l|--log)
+        # set logfile location
+        if [ -z "$2" ]; then
+            consoleError '1' "Log file path cannot be null. Leave unspecified to save log in the same directory as this script."
+        fi
+        logfile="$2"
+        shift
+        ;;
+    -v|--verbose)
+        verbose=1
+        ;;
+    -d|--docker-compose)
+        # FULL path to docker-compose file
+        if [ -n "$2" ]; then
+            if [ -f "$2" ]; then
+                mcDockerCompose="$2"
+                shift
+            else
+                consoleError '1' "$1: cannot find docker-compose file as specified."
+            fi
+        else
+            consoleError '1' "$1: cannot be blank/empty."
+        fi
+        ;;
+    -m|--mailcow-config)
+    # FULL path to mailcow configuration file file
+        if [ -n "$2" ]; then
+            if [ -f "$2" ]; then
+                mcConfig="$2"
+                shift
+            else
+                consoleError '1' "$1: cannot find mailcow configuration file as specified."
+            fi
+        else
+            consoleError '1' "$1: cannot be blank/empty."
+        fi
+        ;;
+    -t1|--timeout-start)
+        if [ -z "$2" ]; then
+            consoleError '1' "$1: cannot be blank/empty."
+        else
+            dockerStartTimeout="$2"
+            shift
+        fi
+        ;;
+    -t2|--timeout-stop)
+        if [ -z "$2" ]; then
+            consoleError '1' "$1: cannot be blank/empty."
+        else
+            dockerStopTimeout="$2"
+            shift
+        fi
+        ;;
+    -b|--backup-location)
+        if [ -n "$2" ]; then
+            if [ -d "$2" ] && [ -n "$( ls -A "$2" )" ]; then
+                backupLocation="$2"
+                shift
+            else
+                consoleError '1' "$1: cannot find specified backup location directory or it is empty."
+            fi
+        else
+            consoleError '1' "$1: cannot be blank/empty."
+        fi
+        ;;
+    --skip-mail)
+        restoreMail=0
+        ;;
+    --skip-sql)
+        restoreSQL=0
+        ;;
+    --skip-postfix)
+        restorePostfix=0
+        ;;
+    --skip-redis)
+        restoreRedis=0
+        ;;
+    --skip-rspamd)
+        restoreRspamd=0
+        ;;
     *)
         printf "\n%Unknown option: %s\n" "$err" "$1"
         printf "Use '--help' for valid options.%s\n\n" "$norm"
@@ -160,18 +236,13 @@ while [ $# -gt 0 ]; do
 done
 
 ### pre-flight checks
+# set path so checks are valid for this script environment
+export PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"
+
 # docker installed?
 if ! command -v docker >/dev/null; then
     consoleError '3' 'docker does not seem to be installed!'
 fi
-# borg installed?
-if ! command -v borg >/dev/null; then
-    consoleError '3' 'borgbackup does not seem to be installed!'
-fi
-# details file?
-if [ ! -f "$configDetails" ]; then
-    consoleError '1' "configuration file ($configDetails) cannot be found."
-fi
 # mailcow.conf?
 if [ ! -f "$mcConfig" ]; then
     consoleError '1' "mailcow configuration file ($mcConfig) cannot be found."
@@ -180,11 +251,12 @@ fi
 if [ ! -f "$mcDockerCompose" ]; then
     consoleError '1' "docker-compose configuration ($mcDockerCompose) cannot be found."
 fi
+# change to mailcow directory so commands execute properly
+\cd ${mcConfig%/*} || consoleError '4' 'Cannot change to mailcow directory as determined from mailcow.conf location.'
 
 ### read mailcow.conf and import vars
 # shellcheck source=./mailcow.conf.shellcheck
 . "$mcConfig"
-export PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"
 export COMPOSE_HTTP_TIMEOUT="$dockerStartTimeout"
 
 ### start logging
@@ -218,119 +290,62 @@ writeLog 'info' "Log located at $logfile"
 
 ### get location of docker volumes
 dockerVolumeMail=$(docker volume inspect -f '{{ .Mountpoint }}' ${COMPOSE_PROJECT_NAME}_vmail-vol-1)
-printf "%s[%s] -- [INFO] Using MAIL volume: %s --%s\n" \
-    "$cyan" "$(stamp)" "$dockerVolumeMail" "$norm" >>"$logfile"
-dockerVolumeRspamd=$(docker volume inspect -f '{{ .Mountpoint }}' ${COMPOSE_PROJECT_NAME}_rspamd-vol-1)
-printf "%s[%s] -- [INFO] Using RSPAMD volume: %s --%s\n" \
-    "$cyan" "$(stamp)" "$dockerVolumeRspamd" "$norm" >>"$logfile"
-dockerVolumePostfix=$(docker volume inspect -f '{{ .Mountpoint }}' ${COMPOSE_PROJECT_NAME}_postfix-vol-1)
-printf "%s[%s] -- [INFO] Using POSTFIX volume: %s --%s\n" \
-    "$cyan" "$(stamp)" "$dockerVolumePostfix" "$norm" >>"$logfile"
-dockerVolumeRedis=$(docker volume inspect -f '{{ .Mountpoint }}' ${COMPOSE_PROJECT_NAME}_redis-vol-1)
-printf "%s[%s] -- [INFO] Using REDIS volume: %s --%s\n" \
-    "$cyan" "$(stamp)" "$dockerVolumeRedis" "$norm" >>"$logfile"
+writeLog 'info' "Using MAIL volume: ${dockerVolumeMail}"
 dockerVolumeCrypt=$(docker volume inspect -f '{{ .Mountpoint }}' ${COMPOSE_PROJECT_NAME}_crypt-vol-1)
-printf "%s[%s] -- [INFO] Using MAILCRYPT volume: %s --%s\n" \
-    "$cyan" "$(stamp)" "$dockerVolumeCrypt" "$norm" >>"$logfile"
+writeLog 'info' "Using MAILCRYPT volume: ${dockerVolumeCrypt}"
+dockerVolumePostfix=$(docker volume inspect -f '{{ .Mountpoint }}' ${COMPOSE_PROJECT_NAME}_postfix-vol-1)
+writeLog 'info' "Using POSTFIX volume: ${dockerVolumePostfix}"
+dockerVolumeRedis=$(docker volume inspect -f '{{ .Mountpoint }}' ${COMPOSE_PROJECT_NAME}_redis-vol-1)
+writeLog 'info' "Using REDIS volume: ${dockerVolumeRedis}"
+dockerVolumeRspamd=$(docker volume inspect -f '{{ .Mountpoint }}' ${COMPOSE_PROJECT_NAME}_rspamd-vol-1)
+writeLog 'info' "Using RSPAMD volume: ${dockerVolumeRspamd}"
+# exit if mail or crypt containers cannot be found (mailcow not initialized beforehand)
+if [ -z "$dockerVolumeMail" ] || [ -z "$dockerVolumeCrypt" ]; then
+    writeLog 'error' '5' "Cannot find mail volume. Mailcow probably not initialized before running restore."
+    exitError 5
+fi
 
-### source configuration details file
-case "${configDetails}" in
-/*)
-    # absolute path, no need to rewrite variable
-    # shellcheck source=./backup.details
-    . "${configDetails}"
-    ;;
-*)
-    # relative path, prepend './' to create absolute path
-    # shellcheck source=./backup.details
-    . "./${configDetails}"
-    ;;
-esac
-writeLog 'info' "Configuration file: ${yellow}${configDetails}${info} imported"
+### restore SQL
+if [ "$restoreSQL" -eq 1 ]; then
+    writeLog 'task' "Restoring mailcow database"
 
-### verify borg variables
-# verify borg base directory
-writeLog 'task' 'Verify details:borgBaseDir'
-if [ -z "${borgBaseDir}" ]; then
-    badDetails empty 'borgBaseDir'
-elif [ ! -d "${borgBaseDir}" ]; then
-    badDetails dne 'borgBaseDir'
-fi
-export BORG_BASE_DIR="${borgBaseDir%/}"
-writeLog 'done'
-# check path to SSH keyfile
-writeLog 'task' 'Verify details:borgSSHKey'
-if [ -z "${borgSSHKey}" ]; then
-    badDetails empty 'borgSSHKey'
-elif [ ! -f "${borgSSHKey}" ]; then
-    badDetails dne 'borgSSHKey'
-fi
-export BORG_RSH="ssh -i ${borgSSHKey}"
-writeLog 'done'
-# check borg repo connect string
-writeLog 'task' 'Verify details:borgConnectRepo'
-if [ -z "${borgConnectRepo}" ]; then
-    badDetails empty 'borgConnectRepo'
-fi
-export BORG_REPO="${borgConnectRepo}"
-writeLog 'done'
-# check borg repo password
-writeLog 'task' 'Verify details:borgRepoPassphrase'
-if [ -z "${borgRepoPassphrase}" ]; then
-    # an empty repo passphrase is considered a mistake so throw an error
-    # if the user meant to enter an empty passphrase they should use 'NONE'
-    badDetails empty 'borgRepoPassphrase'
-elif [ "${borgRepoPassphrase}" = 'NONE' ]; then
-    # password intentionally blank, use but issue warning
-    export BORG_PASSPHRASE=''
-    writeLog 'done' 'warn'
-    writeLog 'warn' 'Using a borg repo with a blank password is an insecure configuration!'
-    warnCount=$((warnCount + 1))
-else
-    export BORG_PASSPHRASE="${borgRepoPassphrase}"
-    writeLog 'done'
-fi
-# check borg repo keyfile location
-writeLog 'task' 'Verify details:borgKeyfileLocation'
-if [ -z "${borgKeyfileLocation}" ]; then
-    # will use default location
-    writeLog 'done'
-else
-    # verify keyfile location exists
-    if [ ! -f "${borgKeyfileLocation}" ]; then
-        badDetails dne 'bogKeyfileLocation'
+    # sql restore pre-requisites
+    sqlBackup=$(find "${backupLocation}/tmp" -iname "*.sql")
+    if [ -n "$sqlBackup" ]; then
+        # start mysql container if not already running
+        if ! docker container inspect -f '{{ .State.Running }}' ${COMPOSE_PROJECT_NAME}_mysql-mailcow_1 > /dev/null 2>&1; then
+            docker-compose up -d mysql-mailcow
+            if docker container inspect -f '{{ .State.Running }}' ${COMPOSE_PROJECT_NAME}_mysql-mailcow_1 > /dev/null 2>&1; then
+                sqlRunning=1
+            else
+                writeLog 'done' 'error'
+                writeLog 'error' '12' "Cannot start mysql-mailcow container -- cannot restore mailcow database!"
+                errorCount=$((errorCount+1))
             fi
-    export BORG_KEY_FILE="${borgKeyfileLocation}"
+        else
+            sqlRunning=1
+        fi
+    else
+        writeLog 'done' 'error'
+        writeLog 'error' '11' "Cannot locate SQL backup -- cannot restore mailcow database!"
+        errorCount=$((errorCount+1))
+    fi
+
+    # restore sql
+    if [ "$sqlRunning" -eq 1 ]; then
+        if docker exec -i "$(docker-compose ps -q mysql-mailcow)" mysql -u${DBUSER} -p${DBPASS} ${DBNAME} < "${sqlBackup}" > /dev/null 2>&1; then
             writeLog 'done'
-fi
-# export borg remote path, if specified
-if [ -n "${borgRemote}" ]; then export BORG_REMOTE_PATH="${borgRemote}"; fi
-
-### create borg temp dir
-## python requires a writable temporary directory when unpacking borg and
-## executing commands. This defaults to /tmp but many systems mount /tmp with
-## the 'noexec' option for security. Thus, we will use/create a 'tmp' folder
-## within the BORG_BASE_DIR and instruct python to use that instead of /tmp
-
-# check if BORG_BASE_DIR/tmp exists, if not, create it
-if [ ! -d "${borgBaseDir}/tmp" ]; then
-    if ! mkdir "${borgBaseDir}/tmp" 2>/dev/null; then
-        writeLog 'error' '31' "Unable to create borg temp directory (${borgBaseDir}/tmp)"
-        exitError 31
+        else
+            writeLog 'done' 'error'
+            writeLog 'error' '13' "Something went wrong while trying to restore SQL database. Perhaps try again?"
+        fi
     fi
 fi
-export TMPDIR="${borgBaseDir}/tmp"
-
-### change to mailcow directory so docker commands run properly
-cd "$(dirname ${mcConfig})" || writeLog 'error' '100' "Could not change to mailcow directory." && exitError 100
 
 #TODO: stop containers
-#TODO: pull backup via borg
 #TODO: copy backups to correct docker volumes
-#TODO: copy additional files to correct locations
 #TODO: restart docker containers
 #TODO: optionally reindex dovecot (parameter)
-#TODO: delete downloaded backup (parameter)
 
 ### exit gracefully
 writeLog 'success' "All processes completed"
@@ -348,13 +363,16 @@ exit 0
 ### error codes:
 # 1: parameter error
 # 2: not run as root
-# 3: borg or docker not installed
-# 10: null configuration variable in details file
-# 11: invalid configuration variable in details file
+# 3: docker not installed
+# 4: cannot change to mailcow directory
+# 5: mailcow not initialized before running script
+# 1x: SQL errors
+#     11: cannot locate SQL dump in backup directory
+#     12: cannot start mysql-mailcow container
+#     13: restoring SQL dump was unsuccessful
 # 99: TERM signal trapped
 # 100: could not change to mailcow-dockerized directory
 # 101: could not stop container(s)
 # 102: could not start container(s)
-# 110: borg exited with a critical error
 
 #EOF