384 lines
12 KiB
Bash
384 lines
12 KiB
Bash
#!/bin/sh
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#######
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### restore mailcow from borgbackup repository
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### this assumes three things:
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### 1. standard mailcow-dockerized setup as per the docs
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### 2. backups made using the backup script from this git repo
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### 3. backups already downloaded from your borg repo
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#######
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### text-formatting presets
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if command -v tput >/dev/null; then
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bold=$(tput bold)
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cyan=$(tput bold)$(tput setaf 6)
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err=$(tput bold)$(tput setaf 1)
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info=$(tput sgr0)
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magenta=$(tput sgr0)$(tput setaf 5)
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norm=$(tput sgr0)
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ok=$(tput setaf 2)
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width=$(tput cols)
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yellow=$(tput sgr0)$(tput setaf 3)
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else
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bold=''
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cyan=''
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err=''
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info=''
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magenta=''
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norm=''
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ok=''
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width=80
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yellow=''
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fi
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### trap
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trap trapExit 1 2 3 6
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### functions
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consoleError() {
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printf "\n%s%s\n" "$err" "$2"
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printf "Exiting.\n\n%s" "$norm"
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exit "$1"
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}
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exitError() {
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printf "%s[%s] --- %s execution completed with error ---\n%s" "$err" "$(stamp)" "$scriptName" "$norm" >>"$logfile"
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exit "$1"
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}
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scriptHelp() {
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textNewline
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printf "%sUsage: %s [parameters]%s\n\n" "$bold" "$scriptName" "$norm"
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textNewline
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textblock "If a parameter is not supplied, its default value will be used. Switch parameters will remain DEactivated if NOT specified."
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textNewline
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exit 0
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}
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stamp() {
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(date +%F' '%T)
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}
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textblock() {
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printf "%s\n" "$1" | fold -w "$width" -s
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}
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textblockHeader() {
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printf "\n%s%s***%s***%s\n" "$bold" "$magenta" "$1" "$norm"
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}
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textblockParam() {
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if [ -z "$2" ]; then
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# no default
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printf "%s%s%s\n" "$cyan" "$1" "$norm"
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else
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# default parameter provided
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printf "%s%s %s(%s)%s\n" "$cyan" "$1" "$yellow" "$2" "$norm"
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fi
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}
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textNewline() {
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printf "\n"
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}
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trapExit() {
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printf "%s[%s] -- [ERROR] 99: Caught signal --%s\n" "$err" "$(stamp)" "$norm" >>"$logfile"
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cleanup
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printf "%s[%s] --- %s execution terminated via signal ---\n%s" "$err" "$(stamp)" "$scriptName" "$norm" >>"$logfile"
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exit 99
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}
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writeLog() {
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if [ "$1" = "task" ]; then
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printf "%s[%s] -- [INFO] %s... " "$info" "$(stamp)" "$2" >>"$logfile"
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elif [ "$1" = "done" ]; then
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if [ -z "$2" ]; then
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printf "%sdone%s --\n%s" "$ok" "$info" "$norm" >>"$logfile"
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elif [ "$2" = "error" ]; then
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printf "%sERROR%s --\n%s" "$err" "$info" "$norm" >>"$logfile"
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elif [ "$2" = "warn" ]; then
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printf "%swarning%s --\n%s" "$yellow" "$info" "$norm" >>"$logfile"
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fi
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elif [ "$1" = "error" ]; then
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printf "%s[%s] -- [ERROR] %s: %s --\n%s" "$err" "$(stamp)" "$2" "$3" "$norm" >>"$logfile"
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elif [ "$1" = "warn" ]; then
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printf "%s[%s] -- [WARNING] %s --\n%s" "$yellow" "$(stamp)" "$2" "$norm" >>"$logfile"
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elif [ "$1" = "info" ]; then
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printf "%s[%s] -- [INFO] %s --\n%s" "$info" "$(stamp)" "$2" "$norm" >>"$logfile"
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elif [ "$1" = "success" ]; then
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printf "%s[%s] -- [SUCCESS] %s --\n%s" "$ok" "$(stamp)" "$2" "$norm" >>"$logfile"
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fi
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}
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### parameter defaults
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# script related
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scriptPath="$(CDPATH='' cd -- "$(dirname -- "$0")" && pwd -P)"
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scriptName="$(basename "$0")"
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errorCount=0
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warnCount=0
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backupLocation=""
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sqlBackup=""
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restoreMail=1
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restoreSQL=1
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restorePostfix=1
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restoreRedis=1
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restoreRspamd=1
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verbose=0
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# logfile default: same location and name as script but with '.log' extension
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logfile="$scriptPath/${scriptName%.*}.log"
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# mailcow/docker related
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mcConfig='/opt/mailcow-dockerized/mailcow.conf'
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mcDockerCompose='/opt/mailcow-dockerized/docker-compose.yml'
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sqlRunning=0
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dockerStartTimeout=180
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dockerStopTimeout=120
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### check if user is root
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if [ "$(id -u)" -ne 0 ]; then
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consoleError '2' "This script must be run as ROOT."
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fi
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### process startup parameters
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while [ $# -gt 0 ]; do
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case "$1" in
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-h|-\?|--help)
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# display help
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scriptHelp
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;;
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-l|--log)
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# set logfile location
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if [ -z "$2" ]; then
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consoleError '1' "Log file path cannot be null. Leave unspecified to save log in the same directory as this script."
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fi
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logfile="$2"
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shift
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;;
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-v|--verbose)
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verbose=1
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;;
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-d|--docker-compose)
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# FULL path to docker-compose file
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if [ -n "$2" ]; then
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if [ -f "$2" ]; then
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mcDockerCompose="$2"
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shift
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else
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consoleError '1' "$1: cannot find docker-compose file as specified."
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fi
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else
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consoleError '1' "$1: cannot be blank/empty."
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fi
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;;
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-m|--mailcow-config)
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# FULL path to mailcow configuration file file
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if [ -n "$2" ]; then
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if [ -f "$2" ]; then
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mcConfig="$2"
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shift
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else
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consoleError '1' "$1: cannot find mailcow configuration file as specified."
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fi
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else
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consoleError '1' "$1: cannot be blank/empty."
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fi
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;;
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-t1|--timeout-start)
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if [ -z "$2" ]; then
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consoleError '1' "$1: cannot be blank/empty."
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else
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dockerStartTimeout="$2"
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shift
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fi
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;;
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-t2|--timeout-stop)
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if [ -z "$2" ]; then
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consoleError '1' "$1: cannot be blank/empty."
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else
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dockerStopTimeout="$2"
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shift
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fi
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;;
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-b|--backup-location)
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if [ -n "$2" ]; then
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if [ -d "$2" ] && [ -n "$( ls -A "$2" )" ]; then
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backupLocation="${2%/}"
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shift
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else
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consoleError '1' "$1: cannot find specified backup location directory or it is empty."
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fi
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else
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consoleError '1' "$1: cannot be blank/empty."
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fi
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;;
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--skip-mail)
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restoreMail=0
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;;
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--skip-sql)
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restoreSQL=0
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;;
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--skip-postfix)
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restorePostfix=0
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;;
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--skip-redis)
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restoreRedis=0
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;;
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--skip-rspamd)
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restoreRspamd=0
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;;
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*)
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printf "\n%sUnknown option: %s\n" "$err" "$1"
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printf "Use '--help' for valid options.%s\n\n" "$norm"
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exit 1
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;;
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esac
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shift
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done
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### pre-flight checks
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# set path so checks are valid for this script environment
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export PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"
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# docker installed?
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if ! command -v docker >/dev/null; then
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consoleError '3' 'docker does not seem to be installed!'
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fi
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# mailcow.conf?
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if [ ! -f "$mcConfig" ]; then
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consoleError '1' "mailcow configuration file ($mcConfig) cannot be found."
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fi
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# docker-compose configuration?
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if [ ! -f "$mcDockerCompose" ]; then
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consoleError '1' "docker-compose configuration ($mcDockerCompose) cannot be found."
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fi
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# forgot to set backup location?
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if [ -z "$backupLocation" ]; then
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consoleError '1' "'--backup-location' cannot be unspecified or null/empty."
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fi
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# change to mailcow directory so commands execute properly
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\cd "${mcConfig%/*}" || consoleError '4' 'Cannot change to mailcow directory as determined from mailcow.conf location.'
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### read mailcow.conf and import vars
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# shellcheck source=./mailcow.conf.shellcheck
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. "$mcConfig"
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export COMPOSE_HTTP_TIMEOUT="$dockerStartTimeout"
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### start logging
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# verify logfile specification is valid
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if ! printf "%s" "$logfile" | grep -o / >/dev/null; then
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# no slashes -> filename provided, save in scriptdir
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logfile="$scriptPath/$logfile"
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elif [ "$(printf "%s" "$logfile" | tail -c 1)" = '/' ]; then
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# ends in '/' --> directory provided, does it exist?
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if [ ! -d "$logfile" ]; then
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if ! mkdir -p "$logfile" >/dev/null 2>&1; then
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consoleError '1' "Unable to make specified log file directory."
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fi
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fi
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logdir="$(cd "$logfile" 2>/dev/null && pwd -P)"
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logfile="${logdir}/${scriptName%.*}.log"
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else
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# full path provided, does the parent directory exist?
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if [ ! -d "${logfile%/*}" ]; then
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# make parent path
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if ! mkdir -p "${logfile%/*}" >/dev/null 2>&1; then
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consoleError '1' "Unable to make specified log file path."
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fi
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fi
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fi
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# write initial log entries
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if ! printf "%s[%s] --- Start %s execution ---\n%s" "$magenta" "$(stamp)" "$scriptName" "$norm" 2>/dev/null >>"$logfile"; then
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consoleError '1' "Unable to write to log file ($logfile)"
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fi
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writeLog 'info' "Log located at $logfile"
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### get location of docker volumes
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dockerVolumeMail=$(docker volume inspect -f '{{ .Mountpoint }}' ${COMPOSE_PROJECT_NAME}_vmail-vol-1)
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writeLog 'info' "Using MAIL volume: ${dockerVolumeMail}"
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dockerVolumeCrypt=$(docker volume inspect -f '{{ .Mountpoint }}' ${COMPOSE_PROJECT_NAME}_crypt-vol-1)
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writeLog 'info' "Using MAILCRYPT volume: ${dockerVolumeCrypt}"
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dockerVolumePostfix=$(docker volume inspect -f '{{ .Mountpoint }}' ${COMPOSE_PROJECT_NAME}_postfix-vol-1)
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writeLog 'info' "Using POSTFIX volume: ${dockerVolumePostfix}"
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dockerVolumeRedis=$(docker volume inspect -f '{{ .Mountpoint }}' ${COMPOSE_PROJECT_NAME}_redis-vol-1)
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writeLog 'info' "Using REDIS volume: ${dockerVolumeRedis}"
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dockerVolumeRspamd=$(docker volume inspect -f '{{ .Mountpoint }}' ${COMPOSE_PROJECT_NAME}_rspamd-vol-1)
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writeLog 'info' "Using RSPAMD volume: ${dockerVolumeRspamd}"
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# exit if mail or crypt containers cannot be found (mailcow not initialized beforehand)
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if [ -z "$dockerVolumeMail" ] || [ -z "$dockerVolumeCrypt" ]; then
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writeLog 'error' '5' "Cannot find mail volume. Mailcow probably not initialized before running restore."
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exitError 5
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fi
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### restore SQL
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if [ "$restoreSQL" -eq 1 ]; then
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writeLog 'task' "Restoring mailcow database"
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# sql restore pre-requisites
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sqlBackup=$(find "${backupLocation}/tmp" -iname "*.sql")
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if [ -n "$sqlBackup" ]; then
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# start mysql container if not already running
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if ! docker container inspect -f '{{ .State.Running }}' ${COMPOSE_PROJECT_NAME}_mysql-mailcow_1 > /dev/null 2>&1; then
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docker-compose up -d mysql-mailcow
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if docker container inspect -f '{{ .State.Running }}' ${COMPOSE_PROJECT_NAME}_mysql-mailcow_1 > /dev/null 2>&1; then
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sqlRunning=1
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else
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writeLog 'done' 'error'
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writeLog 'error' '12' "Cannot start mysql-mailcow container -- cannot restore mailcow database!"
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errorCount=$((errorCount+1))
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fi
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else
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sqlRunning=1
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fi
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else
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writeLog 'done' 'error'
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writeLog 'error' '11' "Cannot locate SQL backup -- cannot restore mailcow database!"
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errorCount=$((errorCount+1))
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fi
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# restore sql
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if [ "$sqlRunning" -eq 1 ]; then
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if docker exec -i "$(docker-compose ps -q mysql-mailcow)" mysql -u${DBUSER} -p${DBPASS} ${DBNAME} < "${sqlBackup}" > /dev/null 2>&1; then
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writeLog 'done'
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else
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writeLog 'done' 'error'
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writeLog 'error' '13' "Something went wrong while trying to restore SQL database. Perhaps try again?"
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errorCount=$((errorCount+1))
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fi
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fi
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fi
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#TODO: stop containers
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#TODO: copy backups to correct docker volumes
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#TODO: restart docker containers
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#TODO: optionally reindex dovecot (parameter)
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### exit gracefully
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writeLog 'success' "All processes completed"
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printf "%s[%s] --- %s execution completed ---\n%s" "$magenta" "$(stamp)" "$scriptName" "$norm" >>"$logfile"
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# note non-terminating errors
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if [ "$errorCount" -gt 0 ]; then
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printf "%s%s errors encountered!%s\n" "$err" "$errorCount" "$norm" >>"$logfile"
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fi
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# note warnings
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if [ "$warnCount" -gt 0 ]; then
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printf "%s%s warnings issued!%s\n" "$yellow" "$warnCount" "$norm" >>"$logfile"
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fi
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exit 0
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### error codes:
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# 1: parameter error
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# 2: not run as root
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# 3: docker not installed
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# 4: cannot change to mailcow directory
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# 5: mailcow not initialized before running script
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# 1x: SQL errors
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# 11: cannot locate SQL dump in backup directory
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# 12: cannot start mysql-mailcow container
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# 13: restoring SQL dump was unsuccessful
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# 99: TERM signal trapped
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# 100: could not change to mailcow-dockerized directory
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# 101: could not stop container(s)
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# 102: could not start container(s)
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#EOF
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