Added some recipes.

.recipes/mediawiki_mariadb/docker-compose.yml

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+# MediaWiki with MariaDB (optionally with extensions).
+#
+version: '3'
+services:
+  # https://hub.docker.com/_/mediawiki
+  mediawiki:
+    # Activate only if there are extensions.
+    #build: ./docker/mediawiki
+    image: mediawiki:lts
+    restart: unless-stopped
+    # Take a look the possible public port collision.
+    ports:
+      - 8201:80
+    links:
+      - database
+    volumes:
+      # Needs R/W UID:GID 33:33 (www-data:www-data).
+      - ./storage/volumes/mediawiki_images:/var/www/html/images
+      # After initial setup, download LocalSettings.php
+      # populate the following line and
+      # use compose to restart the mediawiki service.
+      # Needs read UID or GID 33 (www-data).
+      # - ./configs/LocalSettings.php:/var/www/html/LocalSettings.php:ro
+    extra_hosts:
+      - "host.docker.internal:host-gateway"
+    labels:
+      com.centurylinklabs.watchtower.enable: true
+  # https://hub.docker.com/_/mariadb
+  database:
+    image: mariadb:lts
+    restart: unless-stopped
+    volumes:
+      # Needs R/W UID:GID 999:999.
+      - ./storage/volumes/mysql:/var/lib/mysql
+      # Needs read UID 999.
+      - ./storage/volumes/mysql_conf_d:/etc/mysql/conf.d
+      - ./storage/volumes/mysql_init_d:/docker-entrypoint-initdb.d
+    environment:
+      MARIADB_AUTO_UPGRADE: "1"
+      MARIADB_INITDB_SKIP_TZINFO: "1"
+      MYSQL_DATABASE: mediawiki
+      MYSQL_USER: mediawiki
+      # https://passwordsgenerator.net/
+      MYSQL_PASSWORD: secret-1
+      MYSQL_ROOT_PASSWORD: secret-2
+    extra_hosts:
+      - "host.docker.internal:host-gateway"
+    labels:
+      com.centurylinklabs.watchtower.enable: true

.recipes/mediawiki_mariadb/docker/mediawiki/Dockerfile

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+# Adds the extensions.
+
+FROM mediawiki
+
+rm -Rf /var/www/html/extensions/EXTENSION_NAME && \
+git clone "https://gerrit.wikimedia.org/r/mediawiki/extensions/EXTENSION_NAME" \
+          /var/www/html/extensions/EXTENSION_NAME && \
+chown -R www-data:www-data /var/www/html/extensions/EXTENSION_NAME

.recipes/mediawiki_mariadb/storage/backups/dumps/.gitignore

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+# Ignore everything in this directory except these files.
+*
+!.gitignore
+!.rotate_folder.conf

.recipes/mediawiki_mariadb/storage/backups/dumps/.rotate_folder.conf

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+# This is a shell script excerpt for configuration purposes only.
+# Handle with care! Please don't put code here, only variables.
+
+CLASSES_PATTERN="^([^.]*)\..*\.$HOSTNAME\.(dmp|sql\.gz|tgz|log)$"
+DOIT="yes"                      # if empty the script makes a dry run
+# RETAIN_DAYS=7                 # retains all files created within that many days
+# RETAIN_WEEKS=4                # retains one file per week/month,
+# RETAIN_MONTHS=12              # created within that many weeks/months
+

.recipes/mediawiki_mariadb/storage/backups/webcontent/.gitignore

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+# Ignore everything in this directory except these files.
+*
+!.gitignore

.recipes/mediawiki_mariadb/storage/volumes/mediawiki_images/.gitignore

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+# Ignore everything in this directory except this file.
+*
+!.gitignore

.recipes/mediawiki_mariadb/storage/volumes/mysql/.gitignore

@@ -0,0 +1,3 @@
+# Ignore everything in this directory except this file.
+*
+!.gitignore

.recipes/mediawiki_mariadb/storage/volumes/mysql_conf_d/.gitignore

@@ -0,0 +1,3 @@
+# Ignore everything in this directory except this file.
+*
+!.gitignore

.recipes/mediawiki_mariadb/storage/volumes/mysql_init_d/.gitignore

@@ -0,0 +1,3 @@
+# Ignore everything in this directory except this file.
+*
+!.gitignore

.recipes/mediawiki_mariadb/tools/backup.d/dumpdb_mysql.sh

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+#!/bin/bash
+#
+# A service script to backup the docker-composed Mediawiki instance.
+# Dumps the MySQL/MariaDB database to the $BASE_DIR/storage/backups/dumps
+# folder (by default). An optional parameter may change the target folder.
+#
+# This script gets the database credentials from MW's LocalSettings.php
+# and calls the mysql_dumpdb worker script which should be installed in
+# the same folder or somewhere in the path.
+#
+# Call as a Docker manager user (member of the docker Linux group) via cron.
+# Uses the mysql_dumpdb utility which must be available on path.
+#
+# Author: Kovács Zoltán <kovacs.zoltan@smartfront.hu>
+# License: GNU/GPL 3+ https://www.gnu.org/licenses/gpl-3.0.en.html
+# 2024-08-24 v0.2
+# new: docker-compose v2 compatibility - tested with Ubuntu 24.04 LTS.
+# 2021-08-27 v0.1 Initial version.
+
+# Accepted environment variables and their defaults.
+#
+PAR_BASEDIR=${PAR_BASEDIR:-""}                  # Service's base folder
+PAR_DUMPDIR=${PAR_DUMPDIR:-""}                  # Folder to dump within
+
+# Messages (maybe overridden by configuration).
+#
+MSG_DOCKERGRPNEED="You must be a member of the docker group."
+MSG_DOESNOTRUN="This service doesn't run."
+MSG_MISSINGDEP="Fatal: missing dependency"
+MSG_MISSINGCONF="Fatal: missing config file"
+MSG_MISSINGYML="Fatal: didn't find the docker-compose.yml file"
+MSG_NONWRITE="The target directory isn't writable"
+MSG_NOLOCATE="Cannot locate the database container."
+MSG_NOPARAM="Missing PHP parameter"
+
+# Other initialisations.
+#
+CONFFILE="configs/LocalSettings.php"		# MW's configuration file
+DUMPDIR="storage/backups/dumps"			# Folder to dump within
+USER=${USER:-LOGNAME}                           # Fix for cron enviroment only
+YMLFILE="docker-compose.yml"
+
+# Checks the dependencies.
+#
+TR=$(which tr 2>/dev/null)
+if [ -z "$TR" ]; then echo "$MSG_MISSINGDEP tr."; exit 1 ; fi
+for item in basename cat cut date dirname docker \
+            find grep hostname id pwd tail xargs
+do
+    if [ -n "$(which $item)" ]
+    then export $(echo $item | "$TR" '[:lower:]' '[:upper:]' | "$TR" '-' '_')=$(which $item)
+    else echo "$MSG_MISSINGDEP $item." >&2; exit 1; fi
+done
+# All dependencies are available via "$THECOMMAND" (upper case) call.
+#
+# Let's find which version of docker-compose is installed.
+if [ $($DOCKER compose version 2>&1 >/dev/null; echo $?) -eq 0 ]; then
+    # We'll use v2 if it is available.
+    DOCKER_COMPOSE="$DOCKER"
+    commandstring="compose"
+else
+    # Otherwise falling back to v1.
+    DOCKER_COMPOSE="$(which docker-compose)"
+    commandstring=""
+fi
+# One of the two is mandatory.
+if [ -z "$DOCKER_COMPOSE" ];then echo "$MSG_MISSINGDEP docker-compose" >&2; exit 1; fi
+# Below docker-compose should be called as "$DOCKER_COMPOSE" $commandstring sequence.
+
+# Where I'm?
+# https://gist.github.com/TheMengzor/968e5ea87e99d9c41782
+SOURCE="$0"
+while [ -h "$SOURCE" ]; do
+    # resolve $SOURCE until the file is no longer a symlink
+    SCRPATH="$( cd -P "$("$DIRNAME" "$SOURCE" )" && echo "$PWD" )" #"
+    SOURCE="$("$READLINK" "$SOURCE")"
+    # if $SOURCE was a relative symlink, we need to resolve it
+    # relative to the path where the symlink file was located
+    [[ $SOURCE != /* ]] && SOURCE="$SCRPATH/$SOURCE"
+done; SCRPATH="$( cd -P "$("$DIRNAME" "$SOURCE" )" && echo "$PWD" )" #"
+
+# Need to be root or a Docker manager user.
+#
+[[ "$USER" != 'root' ]] \
+&& [[ -z "$(echo "$("$ID" -Gn "$USER") " | "$GREP" ' docker ')" ]] \
+&& echo "$MSG_DOCKERGRPNEED" >&2 && exit 1 #"
+
+# Searches the base folder, containing a docker-compose.yml file.
+#
+# Called from the base folder (./)?
+BASE_DIR="$PAR_BASEDIR"
+TEST_DIR="$SCRPATH"
+[[ -z "$BASE_DIR" ]] && [[ -r "$TEST_DIR/$YMLFILE" ]] && BASE_DIR="$TEST_DIR"
+# Called from ./tools?
+TEST_DIR="$("$DIRNAME" "$TEST_DIR")"
+[[ -z "$BASE_DIR" ]] && [[ -r "$TEST_DIR/$YMLFILE" ]] && BASE_DIR="$TEST_DIR"
+# Called from ./tools/*.d?
+TEST_DIR="$("$DIRNAME" "$TEST_DIR")"
+[[ -z "$BASE_DIR" ]] && [[ -r "$TEST_DIR/$YMLFILE" ]] && BASE_DIR="$TEST_DIR"
+# On failure gives it up here.
+if [ -z "$BASE_DIR" -o ! -r "$BASE_DIR/$YMLFILE" ]; then
+    echo "$MSG_MISSINGYML" >&2; exit 1
+fi
+# Sets the absolute paths.
+CONFFILE="$BASE_DIR/$CONFFILE"
+DUMPDIR="${PAR_DUMPDIR:-$BASE_DIR/$DUMPDIR}"
+
+# The dump target folder must be writable.
+#
+[[ ! -w "$DUMPDIR" ]] \
+&& echo "$MSG_NONWRITE: $DUMPDIR" >&2 && exit 1
+
+# The service must be running - silently gives up here if not.
+#
+[[ -z "$(cd "$BASE_DIR"; "$DOCKER_COMPOSE" $commandstring  ps --services --filter "status=running")" ]] \
+&& exit 1
+
+# Searches and parses the MW's LocalSettings.php file.
+#
+if [ ! -r "$CONFFILE" ]; then
+    echo "$MSG_MISSINGCONF $CONFFILE" >&2; exit 1
+fi
+#
+function parse { [[ -z "$1" ]] && return
+    # Gets the live lines containing the parameter.
+    value=$("$CAT" "$CONFFILE" | "$GREP" -ve '^#' | \
+            "$GREP" -e "^$1" | "$TR" -d '\r')
+    # If multiple the last one to consider.
+    value=$(echo -e  "$value" | "$TAIL" -n1)
+    # Right side of the equal sign W/O leading and trailing spaces and quotes.
+    value=$(echo -ne "$value" | "$CUT" -d'=' -f2 | "$XARGS")
+    # Removes the trailing semicolon (if any).
+    value=${value%;*}
+    echo -e "$value"; return
+}
+# Gives up here silently if the type of the database isn't MySQL.
+[[ "$(parse "\$wgDBtype")" != 'mysql' ]] && exit 1
+# All parameters are mandatories.
+MYCONTAINER="$(parse "\$wgDBserver")"
+if [ -z "$MYCONTAINER" ]; then echo "$MSG_NOPARAM \$wgDBserver" >&2; exit 1; fi
+MYDATABASE="$(parse "\$wgDBname")"
+if [ -z "$MYDATABASE" ]; then echo "$MSG_NOPARAM \$wgDBname" >&2; exit 1; fi
+MYUSER="$(parse "\$wgDBuser")"
+if [ -z "$MYUSER" ]; then echo "$MSG_NOPARAM \$wgDBuser" >&2; exit 1; fi
+MYPASSWORD="$(parse "\$wgDBpassword")"
+if [ -z "$MYPASSWORD" ]; then echo "$MSG_NOPARAM \$wgDBpassword" >&2; exit 1; fi
+# We've the configuration parsed.
+
+# Converts the database service name to an actual running container's name.
+#
+MYCONTAINER="$("$DOCKER" inspect -f '{{.Name}}' $(cd "$BASE_DIR"; "$DOCKER_COMPOSE" $commandtring ps -q "$MYCONTAINER") | "$CUT" -c2-)"
+# Gives up here if failed.
+if [ -z "$MYCONTAINER" ]; then echo "$MSG_NOLOCATE" >&2; exit 1; fi
+
+# Locates the worker script (in PATH or in this script's folder).
+#
+MYSQL_DUMPDB=$(which mysql_dumpdb)
+if [ -z "$MYSQL_DUMPDB" -a -x "$("$DIRNAME" "$0")/mysql_dumpdb" ]; then
+    MYSQL_DUMPDB="$SCRPATH/mysql_dumpdb"
+fi
+if [ -z "$MYSQL_DUMPDB" ]; then echo "$MSG_MISSINGDEP mysql_dumpdb."; exit 1 ; fi
+
+# Tries the DB backup.
+#
+if [ -n "$MYSQL_DUMPDB" -a -w "$DUMPDIR" ]; then
+    BACKUP_NAME=$MYDATABASE.$("$DATE" '+%Y%m%d_%H%M%S').$("$HOSTNAME")
+    ( cd "$DUMPDIR"
+      export MYCONTAINER MYUSER MYPASSWORD
+      "$MYSQL_DUMPDB" --compress "$MYDATABASE" "$DUMPDIR/$BACKUP_NAME.sql" \
+                      2>>"$DUMPDIR/$BACKUP_NAME.log"
+    )
+fi
+
+# That's all, Folks! :)

.recipes/mediawiki_mariadb/tools/backup.d/storage_backup.sh

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+#!/bin/bash
+#
+# A service script to backup the relevant storage (config, images)
+# of a docker-composed Mediawiki instance. Creates a tarball in
+# $BASE_DIR/storage/backups/tarballs folder (by default). An optional
+# parameter may change the target folder.
+#
+# Call as a Docker manager user (member of the docker Linux group) via cron.
+#
+# Author: Kovács Zoltán <kovacs.zoltan@smartfront.hu>
+# License: GNU/GPL 3+ https://www.gnu.org/licenses/gpl-3.0.en.html
+# 2024-08-24 v0.2
+# new: docker-compose v2 compatibility - tested with Ubuntu 24.04 LTS.
+# 2021-09-01 v0.1 Initial version.
+
+# Accepted environment variables and their defaults.
+#
+PAR_BASEDIR=${PAR_BASEDIR:-""}                  # Service's base folder
+PAR_BACKUPDIR=${PAR_BACKUPDIR:-""}              # Folder to dump within
+
+# Messages (maybe overridden by configuration).
+#
+MSG_DOCKERGRPNEED="You must be a member of the docker group."
+MSG_DOESNOTRUN="This service doesn't run."
+MSG_MISSINGDEP="Fatal: missing dependency"
+MSG_MISSINGYML="Fatal: didn't find the docker-compose.yml file"
+MSG_NONWRITE="The target directory isn't writable"
+MSG_NOLOCATE="Cannot locate the Mediawiki container."
+
+# Other initialisations.
+#
+BACKUPDIR="storage/backups/tarballs"		# Folder to dump within
+SERVICENAME="mediawiki"				# The composed MediaWiki service
+USER=${USER:-LOGNAME}                           # Fix for cron enviroment only
+YMLFILE="docker-compose.yml"
+
+# Checks the dependencies.
+#
+TR=$(which tr 2>/dev/null)
+if [ -z "$TR" ]; then echo "$MSG_MISSINGDEP tr."; exit 1 ; fi
+for item in basename cat cut date dirname docker \
+            find grep hostname id pwd tail xargs
+do
+    if [ -n "$(which $item)" ]
+    then export $(echo $item | "$TR" '[:lower:]' '[:upper:]' | "$TR" '-' '_')=$(which $item)
+    else echo "$MSG_MISSINGDEP $item." >&2; exit 1; fi
+done
+# All dependencies are available via "$THECOMMAND" (upper case) call.
+#
+# Let's find which version of docker-compose is installed.
+if [ $($DOCKER compose version 2>&1 >/dev/null; echo $?) -eq 0 ]; then
+    # We'll use v2 if it is available.
+    DOCKER_COMPOSE="$DOCKER"
+    commandstring="compose"
+else
+    # Otherwise falling back to v1.
+    DOCKER_COMPOSE="$(which docker-compose)"
+    commandstring=""
+fi
+# One of the two is mandatory.
+if [ -z "$DOCKER_COMPOSE" ];then echo "$MSG_MISSINGDEP docker-compose" >&2; exit 1; fi
+# Below docker-compose should be called as "$DOCKER_COMPOSE" $commandstring sequence.
+
+# Where I'm?
+# https://gist.github.com/TheMengzor/968e5ea87e99d9c41782
+SOURCE="$0"
+while [ -h "$SOURCE" ]; do
+    # resolve $SOURCE until the file is no longer a symlink
+    SCRPATH="$( cd -P "$("$DIRNAME" "$SOURCE" )" && echo "$PWD" )" #"
+    SOURCE="$("$READLINK" "$SOURCE")"
+    # if $SOURCE was a relative symlink, we need to resolve it
+    # relative to the path where the symlink file was located
+    [[ $SOURCE != /* ]] && SOURCE="$SCRPATH/$SOURCE"
+done; SCRPATH="$( cd -P "$("$DIRNAME" "$SOURCE" )" && echo "$PWD" )" #"
+
+# Need to be root or a Docker manager user.
+#
+[[ "$USER" != 'root' ]] \
+&& [[ -z "$(echo "$("$ID" -Gn "$USER") " | "$GREP" ' docker ')" ]] \
+&& echo "$MSG_DOCKERGRPNEED" >&2 && exit 1 #"
+
+# Searches the base folder, containing a docker-compose.yml file.
+#
+# Called from the base folder (./)?
+BASE_DIR="$PAR_BASEDIR"
+TEST_DIR="$SCRPATH"
+[[ -z "$BASE_DIR" ]] && [[ -r "$TEST_DIR/$YMLFILE" ]] && BASE_DIR="$TEST_DIR"
+# Called from ./tools?
+TEST_DIR="$("$DIRNAME" "$TEST_DIR")"
+[[ -z "$BASE_DIR" ]] && [[ -r "$TEST_DIR/$YMLFILE" ]] && BASE_DIR="$TEST_DIR"
+# Called from ./tools/*.d?
+TEST_DIR="$("$DIRNAME" "$TEST_DIR")"
+[[ -z "$BASE_DIR" ]] && [[ -r "$TEST_DIR/$YMLFILE" ]] && BASE_DIR="$TEST_DIR"
+# On failure gives it up here.
+if [ -z "$BASE_DIR" -o ! -r "$BASE_DIR/$YMLFILE" ]; then
+    echo "$MSG_MISSINGYML" >&2; exit 1
+fi
+# Sets the absolute paths.
+BACKUPDIR="${PAR_BACKUPDIR:-$BASE_DIR/$BACKUPDIR}"
+
+# The dump target folder must be writable.
+#
+[[ ! -w "$BACKUPDIR" ]] \
+&& echo "$MSG_NONWRITE: $BACKUPDIR" >&2 && exit 1
+
+# The service must be running - silently gives up here if not.
+#
+[[ -z "$(cd "$BASE_DIR"; "$DOCKER_COMPOSE" $commandstring ps --services --filter "status=running")" ]] \
+&& exit 1
+
+# Converts the Mediawiki service name to an actual running container's name.
+#
+MWCONTAINER="$("$DOCKER" inspect -f '{{.Name}}' $(cd "$BASE_DIR"; "$DOCKER_COMPOSE" $commandstring ps -q "$SERVICENAME") | "$CUT" -c2-)"
+# Gives up here if failed.
+if [ -z "$MWCONTAINER" ]; then echo "$MSG_NOLOCATE" >&2; exit 1; fi
+
+# Tries the FS backup.
+if [ -w "$BACKUPDIR" ]; then
+    BACKUP_NAME=$MWCONTAINER.$("$DATE" '+%Y%m%d_%H%M%S').$("$HOSTNAME")
+    "$DOCKER" exec $MWCONTAINER sh \
+    -c "cd /var/www/html; tar cz LocalSettings.php images" \
+    >  "$BACKUPDIR/$BACKUP_NAME.tgz" 2>>"$BACKUPDIR/$BACKUP_NAME.log"
+fi
+
+# That's all, Folks! :)

.recipes/mediawiki_mariadb/tools/backup.d/storage_gitbackup.sh

@@ -0,0 +1,162 @@
+#!/bin/bash
+#
+# Humble tool to commit the content of a docker-composed MediaWiki service's
+# upload files into a git repository to make a daily backup of documents.
+# Also makes the repository with a metastore file if doesn't exist yet.
+#
+# This script called usually by the cron (but indirectly).
+# Depends loosely on metastore package, which isn't absolutely necessary,
+# but strongly recommended to backup file time attributes and permissions,
+# which the git tool doesn't do.
+#
+# Author: Kovács Zoltán <kovacs.zoltan@smartfront.hu>
+# License: GNU/GPL v3+ (https://www.gnu.org/licenses/gpl-3.0.en.html)
+# 2024-08-25 v0.2
+# new: docker-compose v2 compatibility - tested with Ubuntu 24.04 LTS.
+# mod: Doesn't do backup if the service is down.
+# 2021-11-21 v0.1 Initial release
+
+# Accepted environment variables and their defaults.
+#
+BOTEMAIL=${BOTEMAIL:-"backupbot@example.com"}	# Git repo owner's email (fake)
+BOTNAME=${BOTNAME:-"Backup Bot"}		# Git repo owner's name (fake)
+SERVICE_BASE=${PAR_BASEDIR:-""}			# Corresponding service's base
+GITDIR=${PAR_GITDIR:-""}			# Folder containing .git
+SOURCEDIR=${PAR_BACKUPDIR:-""}			# Folder to backup into git
+
+# Basic environment settings.
+#
+LANG=C
+LC_ALL=C
+# We need also the sbin directories.
+if ! [[ "$PATH" =~ '/sbin:' ]]; then
+PATH="$PATH:/usr/local/sbin:/usr/sbin:/sbin"; fi
+
+# Messages.
+#
+MSG_GITCOMMIT="Automated backup"
+MSG_MISSINGBASE="Fatal: missing SERVICE_BASE"
+MSG_MISSINGDEP="Fatal: missing dependency"
+MSG_MISSINGGIT="Fatal: unable to find the backup (git) folder"
+MSG_MISSINGSOURCE="Fatal: unable to find the source folder"
+MSG_WRONGGIT="Fatal: unusable backup (git) folder"
+
+# Other initialisations.
+#
+GITPATH="storage/backups/webcontent"
+YMLFILE="docker-compose.yml"
+
+# Checks the dependencies.
+#
+TR=$(which tr 2>/dev/null)
+if [ -z "$TR" ]; then echo "$MSG_MISSINGDEP tr."; exit 1 ; fi
+for item in cut date dirname docker git readlink
+do
+    if [ -n "$(which $item)" ]
+    then export $(echo $item | "$TR" '[:lower:]' '[:upper:]')=$(which $item)
+    else echo "$MSG_MISSINGDEP $item." >&2; exit 1; fi
+done
+# All dependencies are available via "$THECOMMAND" (upper case) call.
+
+# Where I'm?
+# https://gist.github.com/TheMengzor/968e5ea87e99d9c41782
+#
+SOURCE="$0"
+while [ -h "$SOURCE" ]; do
+    # resolve $SOURCE until the file is no longer a symlink
+    SCRPATH="$( cd -P "$("$DIRNAME" "$SOURCE" )" && echo "$PWD" )" #"
+    SOURCE="$("$READLINK" "$SOURCE")"
+    # if $SOURCE was a relative symlink, we need to resolve it
+    # relative to the path where the symlink file was located
+    [[ $SOURCE != /* ]] && SOURCE="$SCRPATH/$SOURCE"
+done; SCRPATH="$( cd -P "$("$DIRNAME" "$SOURCE" )" && echo "$PWD" )" #"
+ 
+# Let's find which version of docker-compose is installed.
+if [ $($DOCKER compose version 2>&1 >/dev/null; echo $?) -eq 0 ]; then
+    # We'll use v2 if it is available.
+    DOCKER_COMPOSE="$DOCKER"
+    commandstring="compose"
+else
+    # Otherwise falling back to v1.
+    DOCKER_COMPOSE="$(which docker-compose)"
+    commandstring=""
+fi
+# One of the two is mandatory.
+if [ -z "$DOCKER_COMPOSE" ];then echo "$MSG_MISSINGDEP docker-compose" >&2; exit 1; fi
+# Below docker-compose should be called as "$DOCKER_COMPOSE" $commandstring sequence.
+
+# Searches the base folder, containing a docker-compose.yml file.
+#
+# Called from the base folder (./)?
+TEST_DIR="$SCRPATH"
+[[ -z "$SERVICE_BASE" ]] && [[ -r "$TEST_DIR/$YMLFILE" ]] && SERVICE_BASE="$TEST_DIR"
+# Called from ./tools?
+TEST_DIR="$("$DIRNAME" "$TEST_DIR")"
+[[ -z "$SERVICE_BASE" ]] && [[ -r "$TEST_DIR/$YMLFILE" ]] && SERVICE_BASE="$TEST_DIR"
+# Called from ./tools/*.d?
+TEST_DIR="$("$DIRNAME" "$TEST_DIR")"
+[[ -z "$SERVICE_BASE" ]] && [[ -r "$TEST_DIR/$YMLFILE" ]] && SERVICE_BASE="$TEST_DIR"
+# On failure gives it up here.
+if [ -z "$SERVICE_BASE" -o ! -r "$SERVICE_BASE/$YMLFILE" ]; then
+    echo "$MSG_MISSINGYML" >&2; exit 1
+fi
+# Sets the absolute paths.
+BACKUPDIR="${PAR_BACKUPDIR:-$SERVICE_BASE/$BACKUPDIR}"
+
+# Locates the source folder.
+#
+# Maybe given as a  command line parameter.
+[[ -n "$1" ]] && SOURCEDIR="$1" && shift
+[[ -z "$SOURCEDIR" ]] && SOURCEDIR="$SERVICE_BASE/storage/volumes/wordpress_html"
+# Gives up here if doesn't found.
+if [ -z "$SOURCEDIR" -o ! -d "$("$READLINK" -e "$SOURCEDIR")" ]; then
+    echo "$MSG_MISSINGSOURCE $SOURCEDIR"; exit 1
+fi
+
+# Locates the backup (git) folder.
+#
+# Maybe given as a  command line parameter.
+[[ -n "$1" ]] && GITDIR="$1" && shift
+[[ -z "$GITDIR" ]] && GITDIR="$SERVICE_BASE/$GITPATH"
+# Gives up here if doesn't found.
+if [ -z "$GITDIR" -o ! -d "$("$READLINK" -e "$GITDIR")" ]; then
+    echo "$MSG_MISSINGGIT $GITDIR"; exit 1
+fi
+# Does it writable?
+( cd "$GITDIR" 2>/dev/null
+  if [ ! "$PWD" = "$GITDIR" -o ! -w "$PWD" ]; then
+      echo "$MSG_WRONGGIT $GITDIR"; exit 1
+  fi
+) || exit 1
+# We've the folders localized.
+
+# The service must be running - silently gives up here if not.
+#
+[[ -z "$(cd "$BASE_DIR"; "$DOCKER_COMPOSE" $commandstring ps --services --filter "status=running")" ]] \
+&& exit 1
+
+# Attempts the backup commit.
+#
+# Initializes the git backup if it doesn't exist yet.
+if [ ! -d "$GITDIR/.git" ]; then
+    # Initializes the repo itself.
+    "$GIT" --git-dir="$GITDIR/.git" --work-tree="$SOURCEDIR" init --quiet
+    "$GIT" --git-dir="$GITDIR/.git" --work-tree="$SOURCEDIR" config user.name "$BOTNAME"
+    "$GIT" --git-dir="$GITDIR/.git" --work-tree="$SOURCEDIR" config user.email "$BOTEMAIL"
+fi
+# Stages all the files and non-empty folders.
+"$GIT" --git-dir="$GITDIR/.git" --work-tree="$SOURCEDIR" add . >/dev/null
+# Stores the file system metadata as well, if the tool has been installed.
+if [ ! -z "$(which metastore)" -a -x "$(which metastore)" ]; then
+    # This commamd silently creates the metastore file if it doesnt' exist yet.
+    ( cd "$SOURCEDIR"
+      "$(which metastore)" -smqq --file ".metadata"
+    )
+    # Stages it as well.
+    "$GIT" --git-dir="$GITDIR/.git" --work-tree="$SOURCEDIR" add ".metadata" >/dev/null
+fi
+# Makes the commit.
+"$GIT" --git-dir="$GITDIR/.git" --work-tree="$SOURCEDIR" commit --quiet -m "'$MSG_GITCOMMIT $("$DATE" '+%Y%m%d-%H%M%S')'"
+# Git done.
+
+# That's all, Folks! :)

.recipes/wordpress_mariadb/docker-compose.yml

@@ -0,0 +1,62 @@
+# Wordpress with MariaDB
+#
+version: '3'
+services:
+  # https://hub.docker.com/_/wordpress
+  # https://github.com/docker-library/docs/tree/master/wordpress
+  wordpress:
+    image: wordpress:latest
+    restart: unless-stopped
+    # Take a look the possible public port collision.
+    ports:
+      - 8201:80
+    links:
+      - database
+    volumes:
+      # Needs R/W UID:GID 33:33 (www-data:www-data).
+      - ./storage/volumes/wordpress_html:/var/www/html
+    environment:
+      # These variables matter only for a new instance.
+      # In the case of migration take care the wp-config.php.
+      WORDPRESS_DB_HOST: database
+      WORDPRESS_DB_NAME: wordpress
+      WORDPRESS_DB_USER: wordpress
+      WORDPRESS_DB_PASSWORD: secret-1
+      # https://api.wordpress.org/secret-key/1.1/salt/ or
+      # https://passwordsgenerator.net/
+      WORDPRESS_AUTH_KEY: fill_in
+      WORDPRESS_SECURE_AUTH_KEY: fill_in
+      WORDPRESS_LOGGED_IN_KEY: fill_in
+      WORDPRESS_NONCE_KEY: fill_in
+      WORDPRESS_AUTH_SALT: fill_in
+      WORDPRESS_SECURE_AUTH_SALT: fill_in
+      WORDPRESS_LOGGED_IN_SALT: fill_in
+      WORDPRESS_NONCE_SALT: fill_in
+    extra_hosts:
+      - "host.docker.internal:host-gateway"
+    labels:
+      com.centurylinklabs.watchtower.enable: true
+  # https://hub.docker.com/_/mariadb
+  database:
+    image: mariadb:lts
+    restart: unless-stopped
+    # ports:
+    #  - 3306:3306
+    volumes:
+      # Needs R/W UID:GID 999:999.
+      - ./storage/volumes/mysql:/var/lib/mysql
+      # Needs read UID 999.
+      - ./storage/volumes/mysql_conf_d:/etc/mysql/conf.d
+      - ./storage/volumes/mysql_init_d:/docker-entrypoint-initdb.d
+    environment:
+      MARIADB_AUTO_UPGRADE: "1"
+      MARIADB_INITDB_SKIP_TZINFO: "1"
+      MYSQL_DATABASE: wordpress
+      MYSQL_USER: wordpress
+      # https://passwordsgenerator.net/
+      MYSQL_PASSWORD: secret-1
+      MYSQL_ROOT_PASSWORD: secret-2
+    extra_hosts:
+      - "host.docker.internal:host-gateway"
+    labels:
+      com.centurylinklabs.watchtower.enable: true

.recipes/wordpress_mariadb/storage/backups/dumps/.gitignore

@@ -0,0 +1,4 @@
+# Ignore everything in this directory except these files.
+*
+!.gitignore
+!.rotate_folder.conf

.recipes/wordpress_mariadb/storage/backups/dumps/.rotate_folder.conf

@@ -0,0 +1,9 @@
+# This is a shell script excerpt for configuration purposes only.
+# Handle with care! Please don't put code here, only variables.
+
+CLASSES_PATTERN="^([^.]*)\..*\.$HOSTNAME\.(dmp|sql\.gz|tgz|log)$"
+DOIT="yes"                      # if empty the script makes a dry run
+# RETAIN_DAYS=7                 # retains all files created within that many days
+# RETAIN_WEEKS=4                # retains one file per week/month,
+# RETAIN_MONTHS=12              # created within that many weeks/months
+

.recipes/wordpress_mariadb/storage/backups/webcontent/.gitignore

@@ -0,0 +1,3 @@
+# Ignore everything in this directory except these files.
+*
+!.gitignore

.recipes/wordpress_mariadb/storage/volumes/.gitignore

@@ -0,0 +1,7 @@
+# Ignore everything in this directory except this folders.
+*
+!.gitignore
+!wordpress_html
+!mysql
+!mysql_conf_d
+!mysql_init_d

.recipes/wordpress_mariadb/storage/volumes/mysql/.gitignore

@@ -0,0 +1,3 @@
+# Ignore everything in this directory except this file.
+*
+!.gitignore

.recipes/wordpress_mariadb/storage/volumes/mysql_conf_d/.gitignore

@@ -0,0 +1,3 @@
+# Ignore everything in this directory except this file.
+*
+!.gitignore

.recipes/wordpress_mariadb/storage/volumes/mysql_init_d/.gitignore

@@ -0,0 +1,3 @@
+# Ignore everything in this directory except this file.
+*
+!.gitignore

.recipes/wordpress_mariadb/storage/volumes/wordpress_html/.gitignore

@@ -0,0 +1,3 @@
+# Ignore everything in this directory except this file.
+*
+!.gitignore

.recipes/wordpress_mariadb/tools/backup.d/dumpdb_mysql.sh

@@ -0,0 +1,171 @@
+#!/bin/bash
+#
+# A service script to backup the docker-composed WordPress instance.
+# Dumps the MySQL/MariaDB database to the $BASE_DIR/storage/backups/dumps
+# folder (by default). An optional parameter may change the target folder.
+#
+# This script gets the database credentials from the docker-compose.yml file
+# and calls the mysql_dumpdb worker script which should be installed in
+# the same folder or somewhere in the path.
+#
+# Call as a Docker manager user (member of the docker Linux group) via cron.
+#
+# Author: Kovács Zoltán <kovacs.zoltan@smartfront.hu>
+# License: GNU/GPL 3+ https://www.gnu.org/licenses/gpl-3.0.en.html
+# 2024-08-25 v0.2
+# new: docker-compose v2 compatibility - tested with Ubuntu 24.04 LTS.
+# 2021-10-19 v0.1 Initial version.
+
+# Accepted environment variables and their defaults.
+#
+PAR_BASEDIR=${PAR_BASEDIR:-""}                  # Service's base folder
+PAR_DUMPDIR=${PAR_DUMPDIR:-""}                  # Folder to dump within
+
+# Messages (maybe overridden by configuration).
+#
+MSG_DOCKERGRPNEED="You must be a member of the docker group."
+MSG_DOESNOTRUN="This service doesn't run."
+MSG_MISSINGDEP="Fatal: missing dependency"
+MSG_MISSINGCONF="Fatal: missing config file"
+MSG_MISSINGYML="Fatal: didn't find the docker-compose.yml file"
+MSG_NONWRITE="The target directory isn't writable"
+MSG_NOLOCATE="Cannot locate the database container."
+MSG_NOPARAM="Missing environment parameter"
+
+# Other initialisations.
+#
+CONFFILE="docker-compose.yml"			# Configuration file
+DUMPDIR="storage/backups/dumps"			# Folder to dump within
+USER=${USER:-LOGNAME}                           # Fix for cron enviroment only
+YMLFILE="docker-compose.yml"
+
+# Checks the dependencies.
+#
+TR=$(which tr 2>/dev/null)
+if [ -z "$TR" ]; then echo "$MSG_MISSINGDEP tr."; exit 1 ; fi
+for item in basename cat cut date dirname docker \
+            find grep hostname id pwd tail xargs
+do
+    if [ -n "$(which $item)" ]
+    then export $(echo $item | "$TR" '[:lower:]' '[:upper:]' | "$TR" '-' '_')=$(which $item)
+    else echo "$MSG_MISSINGDEP $item." >&2; exit 1; fi
+done
+# All dependencies are available via "$THECOMMAND" (upper case) call.
+#
+# Let's find which version of docker-compose is installed.
+if [ $($DOCKER compose version 2>&1 >/dev/null; echo $?) -eq 0 ]; then
+    # We'll use v2 if it is available.
+    DOCKER_COMPOSE="$DOCKER"
+    commandstring="compose"
+else
+    # Otherwise falling back to v1.
+    DOCKER_COMPOSE="$(which docker-compose)"
+    commandstring=""
+fi
+# One of the two is mandatory.
+if [ -z "$DOCKER_COMPOSE" ];then echo "$MSG_MISSINGDEP docker-compose" >&2; exit 1; fi
+# Below docker-compose should be called as "$DOCKER_COMPOSE" $commandstring sequence.
+
+# Where I'm?
+# https://gist.github.com/TheMengzor/968e5ea87e99d9c41782
+SOURCE="$0"
+while [ -h "$SOURCE" ]; do
+    # resolve $SOURCE until the file is no longer a symlink
+    SCRPATH="$( cd -P "$("$DIRNAME" "$SOURCE" )" && echo "$PWD" )" #"
+    SOURCE="$("$READLINK" "$SOURCE")"
+    # if $SOURCE was a relative symlink, we need to resolve it
+    # relative to the path where the symlink file was located
+    [[ $SOURCE != /* ]] && SOURCE="$SCRPATH/$SOURCE"
+done; SCRPATH="$( cd -P "$("$DIRNAME" "$SOURCE" )" && echo "$PWD" )" #"
+
+# Need to be root or a Docker manager user.
+#
+[[ "$USER" != 'root' ]] \
+&& [[ -z "$(echo "$("$ID" -Gn "$USER") " | "$GREP" ' docker ')" ]] \
+&& echo "$MSG_DOCKERGRPNEED" >&2 && exit 1 #"
+
+# Searches the base folder, containing a docker-compose.yml file.
+#
+# Called from the base folder (./)?
+BASE_DIR="$PAR_BASEDIR"
+TEST_DIR="$SCRPATH"
+[[ -z "$BASE_DIR" ]] && [[ -r "$TEST_DIR/$YMLFILE" ]] && BASE_DIR="$TEST_DIR"
+# Called from ./tools?
+TEST_DIR="$("$DIRNAME" "$TEST_DIR")"
+[[ -z "$BASE_DIR" ]] && [[ -r "$TEST_DIR/$YMLFILE" ]] && BASE_DIR="$TEST_DIR"
+# Called from ./tools/*.d?
+TEST_DIR="$("$DIRNAME" "$TEST_DIR")"
+[[ -z "$BASE_DIR" ]] && [[ -r "$TEST_DIR/$YMLFILE" ]] && BASE_DIR="$TEST_DIR"
+# On failure gives it up here.
+if [ -z "$BASE_DIR" -o ! -r "$BASE_DIR/$YMLFILE" ]; then
+    echo "$MSG_MISSINGYML" >&2; exit 1
+fi
+# Sets the absolute paths.
+CONFFILE="$BASE_DIR/$CONFFILE"
+DUMPDIR="${PAR_DUMPDIR:-$BASE_DIR/$DUMPDIR}"
+
+# The dump target folder must be writable.
+#
+[[ ! -w "$DUMPDIR" ]] \
+&& echo "$MSG_NONWRITE: $DUMPDIR" >&2 && exit 1
+
+# The service must be running - silently gives up here if not.
+#
+[[ -z "$(cd "$BASE_DIR"; "$DOCKER_COMPOSE" $commandstring ps --services --filter "status=running")" ]] \
+&& exit 1
+
+# Searches and parses the config file.
+#
+if [ ! -r "$CONFFILE" ]; then
+    echo "$MSG_MISSINGCONF $CONFFILE" >&2; exit 1
+fi
+#
+function parse { [[ -z "$1" ]] && return
+    # Gets the live lines containing the parameter.
+    value=$("$CAT" "$CONFFILE" | "$GREP" -ve '^#' | \
+            "$GREP" -e "$1" | "$TR" -d '\r')
+    # If multiple the last one to consider.
+    value=$(echo -e  "$value" | "$TAIL" -n1)
+    # Right side of the colon W/O leading and trailing spaces and quotes.
+    value=$(echo -ne "$value" | "$CUT" -d':' -f2 | "$XARGS")
+    # Removes the trailing semicolon (if any).
+    value=${value%;*}
+    echo -e "$value"; return
+}
+# All parameters are mandatories.
+MYCONTAINER="$(parse "WORDPRESS_DB_HOST")"
+if [ -z "$MYCONTAINER" ]; then echo "$MSG_NOPARAM WORDPRESS_DB_HOST" >&2; exit 1; fi
+MYDATABASE="$(parse "WORDPRESS_DB_NAME")"
+if [ -z "$MYDATABASE" ]; then echo "$MSG_NOPARAM WORDPRESS_DB_NAME" >&2; exit 1; fi
+MYUSER="$(parse "WORDPRESS_DB_USER")"
+if [ -z "$MYUSER" ]; then echo "$MSG_NOPARAM WORDPRESS_DB_USER" >&2; exit 1; fi
+MYPASSWORD="$(parse "WORDPRESS_DB_PASSWORD")"
+if [ -z "$MYPASSWORD" ]; then echo "$MSG_NOPARAM WORDPRESS_DB_PASSWORD" >&2; exit 1; fi
+# We've the configuration parsed.
+
+# Converts the database service name to an actual running container's name.
+#
+MYCONTAINER="$("$DOCKER" inspect -f '{{.Name}}' $(cd "$BASE_DIR"; "$DOCKER_COMPOSE" $commandstring ps -q "$MYCONTAINER") | "$CUT" -c2-)"
+# Gives up here if failed.
+if [ -z "$MYCONTAINER" ]; then echo "$MSG_NOLOCATE" >&2; exit 1; fi
+
+# Locates the worker script (in PATH or in this script's folder).
+#
+MYSQL_DUMPDB=$(which mysql_dumpdb)
+if [ -z "$MYSQL_DUMPDB" -a -x "$("$DIRNAME" "$0")/mysql_dumpdb" ]; then
+    MYSQL_DUMPDB="$SCRPATH/mysql_dumpdb"
+fi
+if [ -z "$MYSQL_DUMPDB" ]; then echo "$MSG_MISSINGDEP mysql_dumpdb."; exit 1 ; fi
+
+# Tries the DB backup.
+#
+if [ -n "$MYSQL_DUMPDB" -a -w "$DUMPDIR" ]; then
+    BACKUP_NAME=$MYDATABASE.$("$DATE" '+%Y%m%d_%H%M%S').$("$HOSTNAME")
+    ( cd "$DUMPDIR"
+      export MYCONTAINER MYUSER MYPASSWORD
+      "$MYSQL_DUMPDB" --compress "$MYDATABASE" "$DUMPDIR/$BACKUP_NAME.sql" \
+                      2>>"$DUMPDIR/$BACKUP_NAME.log"
+    )
+fi
+
+# That's all, Folks! :)

.recipes/wordpress_mariadb/tools/backup.d/storage_backup.sh

@@ -0,0 +1,125 @@
+#!/bin/bash
+#
+# A service script to backup the relevant storage (config, images)
+# of a docker-composed Wordpress instance. Creates a tarball in
+# $BASE_DIR/storage/backups/tarballs folder (by default). An optional
+# parameter may change the target folder.
+#
+# Call as a Docker manager user (member of the docker Linux group) via cron.
+#
+# Author: Kovács Zoltán <kovacs.zoltan@smartfront.hu>
+# License: GNU/GPL 3+ https://www.gnu.org/licenses/gpl-3.0.en.html
+# 2024-08-25 v0.2
+# new: docker-compose v2 compatibility - tested with Ubuntu 24.04 LTS.
+# 2021-10-19 v0.1 Initial version.
+
+# Accepted environment variables and their defaults.
+#
+PAR_BASEDIR=${PAR_BASEDIR:-""}                  # Service's base folder
+PAR_BACKUPDIR=${PAR_BACKUPDIR:-""}              # Folder to dump within
+
+# Messages (maybe overridden by configuration).
+#
+MSG_DOCKERGRPNEED="You must be a member of the docker group."
+MSG_DOESNOTRUN="This service doesn't run."
+MSG_MISSINGDEP="Fatal: missing dependency"
+MSG_MISSINGYML="Fatal: didn't find the docker-compose.yml file"
+MSG_NONWRITE="The target directory isn't writable"
+MSG_NOLOCATE="Cannot locate the Mediawiki container."
+
+# Other initialisations.
+#
+BACKUPDIR="storage/backups/tarballs"		# Folder to dump within
+SERVICENAME="wordpress"				# The composed WordPress service
+USER=${USER:-LOGNAME}                           # Fix for cron enviroment only
+YMLFILE="docker-compose.yml"
+
+# Checks the dependencies.
+#
+TR=$(which tr 2>/dev/null)
+if [ -z "$TR" ]; then echo "$MSG_MISSINGDEP tr."; exit 1 ; fi
+for item in basename cat cut date dirname docker \
+            find grep hostname id pwd tail xargs
+do
+    if [ -n "$(which $item)" ]
+    then export $(echo $item | "$TR" '[:lower:]' '[:upper:]' | "$TR" '-' '_')=$(which $item)
+    else echo "$MSG_MISSINGDEP $item." >&2; exit 1; fi
+done
+# All dependencies are available via "$THECOMMAND" (upper case) call.
+#
+# Let's find which version of docker-compose is installed.
+if [ $($DOCKER compose version 2>&1 >/dev/null; echo $?) -eq 0 ]; then
+    # We'll use v2 if it is available.
+    DOCKER_COMPOSE="$DOCKER"
+    commandstring="compose"
+else
+    # Otherwise falling back to v1.
+    DOCKER_COMPOSE="$(which docker-compose)"
+    commandstring=""
+fi
+# One of the two is mandatory.
+if [ -z "$DOCKER_COMPOSE" ];then echo "$MSG_MISSINGDEP docker-compose" >&2; exit 1; fi
+# Below docker-compose should be called as "$DOCKER_COMPOSE" $commandstring sequence.
+
+# Where I'm?
+# https://gist.github.com/TheMengzor/968e5ea87e99d9c41782
+SOURCE="$0"
+while [ -h "$SOURCE" ]; do
+    # resolve $SOURCE until the file is no longer a symlink
+    SCRPATH="$( cd -P "$("$DIRNAME" "$SOURCE" )" && echo "$PWD" )" #"
+    SOURCE="$("$READLINK" "$SOURCE")"
+    # if $SOURCE was a relative symlink, we need to resolve it
+    # relative to the path where the symlink file was located
+    [[ $SOURCE != /* ]] && SOURCE="$SCRPATH/$SOURCE"
+done; SCRPATH="$( cd -P "$("$DIRNAME" "$SOURCE" )" && echo "$PWD" )" #"
+
+# Need to be root or a Docker manager user.
+#
+[[ "$USER" != 'root' ]] \
+&& [[ -z "$(echo "$("$ID" -Gn "$USER") " | "$GREP" ' docker ')" ]] \
+&& echo "$MSG_DOCKERGRPNEED" >&2 && exit 1 #"
+
+# Searches the base folder, containing a docker-compose.yml file.
+#
+# Called from the base folder (./)?
+BASE_DIR="$PAR_BASEDIR"
+TEST_DIR="$SCRPATH"
+[[ -z "$BASE_DIR" ]] && [[ -r "$TEST_DIR/$YMLFILE" ]] && BASE_DIR="$TEST_DIR"
+# Called from ./tools?
+TEST_DIR="$("$DIRNAME" "$TEST_DIR")"
+[[ -z "$BASE_DIR" ]] && [[ -r "$TEST_DIR/$YMLFILE" ]] && BASE_DIR="$TEST_DIR"
+# Called from ./tools/*.d?
+TEST_DIR="$("$DIRNAME" "$TEST_DIR")"
+[[ -z "$BASE_DIR" ]] && [[ -r "$TEST_DIR/$YMLFILE" ]] && BASE_DIR="$TEST_DIR"
+# On failure gives it up here.
+if [ -z "$BASE_DIR" -o ! -r "$BASE_DIR/$YMLFILE" ]; then
+    echo "$MSG_MISSINGYML" >&2; exit 1
+fi
+# Sets the absolute paths.
+BACKUPDIR="${PAR_BACKUPDIR:-$BASE_DIR/$BACKUPDIR}"
+
+# The dump target folder must be writable.
+#
+[[ ! -w "$BACKUPDIR" ]] \
+&& echo "$MSG_NONWRITE: $BACKUPDIR" >&2 && exit 1
+
+# The service must be running - silently gives up here if not.
+#
+[[ -z "$(cd "$BASE_DIR"; "$DOCKER_COMPOSE" $commandstring ps --services --filter "status=running")" ]] \
+&& exit 1
+
+# Converts the WordPress service name to an actual running container's name.
+#
+WPCONTAINER="$("$DOCKER" inspect -f '{{.Name}}' $(cd "$BASE_DIR"; "$DOCKER_COMPOSE" $commandline ps -q "$SERVICENAME") | "$CUT" -c2-)"
+# Gives up here if failed.
+if [ -z "$WPCONTAINER" ]; then echo "$MSG_NOLOCATE" >&2; exit 1; fi
+
+# Tries the FS backup.
+if [ -w "$BACKUPDIR" ]; then
+    BACKUP_NAME=$WPCONTAINER.$("$DATE" '+%Y%m%d_%H%M%S').$("$HOSTNAME")
+    "$DOCKER" exec $WPCONTAINER sh \
+    -c "cd /var/www/html; tar cz ." \
+    >  "$BACKUPDIR/$BACKUP_NAME.tgz" 2>>"$BACKUPDIR/$BACKUP_NAME.log"
+fi
+
+# That's all, Folks! :)

.recipes/wordpress_mariadb/tools/backup.d/storage_gitbackup.sh

@@ -0,0 +1,162 @@
+#!/bin/bash
+#
+# Humble tool to commit the content of a docker-composed WordPress service's
+# web files into a git repository to make a daily backup of documents.
+# Also makes the repository with a metastore file if doesn't exist yet.
+#
+# This script called usually by the cron (but indirectly).
+# Depends loosely on metastore package, which isn't absolutely necessary,
+# but strongly recommended to backup file time attributes and permissions,
+# which the git tool doesn't do.
+#
+# Author: Kovács Zoltán <kovacs.zoltan@smartfront.hu>
+# License: GNU/GPL v3+ (https://www.gnu.org/licenses/gpl-3.0.en.html)
+# 2024-08-25 v0.2
+# new: docker-compose v2 compatibility - tested with Ubuntu 24.04 LTS.
+# mod: Doesn't do backup if the service is down.
+# 2021-11-21 v0.1 Initial release
+
+# Accepted environment variables and their defaults.
+#
+BOTEMAIL=${BOTEMAIL:-"backupbot@example.com"}	# Git repo owner's email (fake)
+BOTNAME=${BOTNAME:-"Backup Bot"}		# Git repo owner's name (fake)
+SERVICE_BASE=${PAR_BASEDIR:-""}			# Corresponding service's base
+GITDIR=${PAR_GITDIR:-""}			# Folder containing .git
+SOURCEDIR=${PAR_BACKUPDIR:-""}			# Folder to backup into git
+
+# Basic environment settings.
+#
+LANG=C
+LC_ALL=C
+# We need also the sbin directories.
+if ! [[ "$PATH" =~ '/sbin:' ]]; then
+PATH="$PATH:/usr/local/sbin:/usr/sbin:/sbin"; fi
+
+# Messages.
+#
+MSG_GITCOMMIT="Automated backup"
+MSG_MISSINGBASE="Fatal: missing SERVICE_BASE"
+MSG_MISSINGDEP="Fatal: missing dependency"
+MSG_MISSINGGIT="Fatal: unable to find the backup (git) folder"
+MSG_MISSINGSOURCE="Fatal: unable to find the source folder"
+MSG_WRONGGIT="Fatal: unusable backup (git) folder"
+
+# Other initialisations.
+#
+GITPATH="storage/backups/webcontent"
+YMLFILE="docker-compose.yml"
+
+# Checks the dependencies.
+#
+TR=$(which tr 2>/dev/null)
+if [ -z "$TR" ]; then echo "$MSG_MISSINGDEP tr."; exit 1 ; fi
+for item in cut date dirname git readlink
+do
+    if [ -n "$(which $item)" ]
+    then export $(echo $item | "$TR" '[:lower:]' '[:upper:]')=$(which $item)
+    else echo "$MSG_MISSINGDEP $item." >&2; exit 1; fi
+done
+# All dependencies are available via "$THECOMMAND" (upper case) call.
+
+# Where I'm?
+# https://gist.github.com/TheMengzor/968e5ea87e99d9c41782
+#
+SOURCE="$0"
+while [ -h "$SOURCE" ]; do
+    # resolve $SOURCE until the file is no longer a symlink
+    SCRPATH="$( cd -P "$("$DIRNAME" "$SOURCE" )" && echo "$PWD" )" #"
+    SOURCE="$("$READLINK" "$SOURCE")"
+    # if $SOURCE was a relative symlink, we need to resolve it
+    # relative to the path where the symlink file was located
+    [[ $SOURCE != /* ]] && SOURCE="$SCRPATH/$SOURCE"
+done; SCRPATH="$( cd -P "$("$DIRNAME" "$SOURCE" )" && echo "$PWD" )" #"
+ 
+# Let's find which version of docker-compose is installed.
+if [ $($DOCKER compose version 2>&1 >/dev/null; echo $?) -eq 0 ]; then
+    # We'll use v2 if it is available.
+    DOCKER_COMPOSE="$DOCKER"
+    commandstring="compose"
+else
+    # Otherwise falling back to v1.
+    DOCKER_COMPOSE="$(which docker-compose)"
+    commandstring=""
+fi
+# One of the two is mandatory.
+if [ -z "$DOCKER_COMPOSE" ];then echo "$MSG_MISSINGDEP docker-compose" >&2; exit 1; fi
+# Below docker-compose should be called as "$DOCKER_COMPOSE" $commandstring sequence.
+
+# Searches the base folder, containing a docker-compose.yml file.
+#
+# Called from the base folder (./)?
+TEST_DIR="$SCRPATH"
+[[ -z "$SERVICE_BASE" ]] && [[ -r "$TEST_DIR/$YMLFILE" ]] && SERVICE_BASE="$TEST_DIR"
+# Called from ./tools?
+TEST_DIR="$("$DIRNAME" "$TEST_DIR")"
+[[ -z "$SERVICE_BASE" ]] && [[ -r "$TEST_DIR/$YMLFILE" ]] && SERVICE_BASE="$TEST_DIR"
+# Called from ./tools/*.d?
+TEST_DIR="$("$DIRNAME" "$TEST_DIR")"
+[[ -z "$SERVICE_BASE" ]] && [[ -r "$TEST_DIR/$YMLFILE" ]] && SERVICE_BASE="$TEST_DIR"
+# On failure gives it up here.
+if [ -z "$SERVICE_BASE" -o ! -r "$SERVICE_BASE/$YMLFILE" ]; then
+    echo "$MSG_MISSINGYML" >&2; exit 1
+fi
+# Sets the absolute paths.
+BACKUPDIR="${PAR_BACKUPDIR:-$SERVICE_BASE/$BACKUPDIR}"
+
+# Locates the source folder.
+#
+# Maybe given as a  command line parameter.
+[[ -n "$1" ]] && SOURCEDIR="$1" && shift
+[[ -z "$SOURCEDIR" ]] && SOURCEDIR="$SERVICE_BASE/storage/volumes/wordpress_html"
+# Gives up here if doesn't found.
+if [ -z "$SOURCEDIR" -o ! -d "$("$READLINK" -e "$SOURCEDIR")" ]; then
+    echo "$MSG_MISSINGSOURCE $SOURCEDIR"; exit 1
+fi
+
+# Locates the backup (git) folder.
+#
+# Maybe given as a  command line parameter.
+[[ -n "$1" ]] && GITDIR="$1" && shift
+[[ -z "$GITDIR" ]] && GITDIR="$SERVICE_BASE/$GITPATH"
+# Gives up here if doesn't found.
+if [ -z "$GITDIR" -o ! -d "$("$READLINK" -e "$GITDIR")" ]; then
+    echo "$MSG_MISSINGGIT $GITDIR"; exit 1
+fi
+# Does it writable?
+( cd "$GITDIR" 2>/dev/null
+  if [ ! "$PWD" = "$GITDIR" -o ! -w "$PWD" ]; then
+      echo "$MSG_WRONGGIT $GITDIR"; exit 1
+  fi
+) || exit 1
+# We've the folders localized.
+
+# The service must be running - silently gives up here if not.
+#
+[[ -z "$(cd "$BASE_DIR"; "$DOCKER_COMPOSE" $commandstring ps --services --filter "status=running")" ]] \
+&& exit 1
+
+# Attempts the backup commit.
+#
+# Initializes the git backup if it doesn't exist yet.
+if [ ! -d "$GITDIR/.git" ]; then
+    # Initializes the repo itself.
+    "$GIT" --git-dir="$GITDIR/.git" --work-tree="$SOURCEDIR" init --quiet
+    "$GIT" --git-dir="$GITDIR/.git" --work-tree="$SOURCEDIR" config user.name "$BOTNAME"
+    "$GIT" --git-dir="$GITDIR/.git" --work-tree="$SOURCEDIR" config user.email "$BOTEMAIL"
+fi
+# Stages all the files and non-empty folders.
+"$GIT" --git-dir="$GITDIR/.git" --work-tree="$SOURCEDIR" add . >/dev/null
+# Stores the file system metadata as well, if the tool has been installed.
+if [ ! -z "$(which metastore)" -a -x "$(which metastore)" ]; then
+    # This commamd silently creates the metastore file if it doesnt' exist yet.
+    ( cd "$SOURCEDIR"
+      "$(which metastore)" -smqq --file ".metadata"
+    )
+    # Stages it as well.
+    "$GIT" --git-dir="$GITDIR/.git" --work-tree="$SOURCEDIR" add ".metadata" >/dev/null
+fi
+# Makes the commit.
+"$GIT" --git-dir="$GITDIR/.git" --work-tree="$SOURCEDIR" commit --quiet -m "'$MSG_GITCOMMIT $("$DATE" '+%Y%m%d-%H%M%S')'"
+# Git done.
+
+# That's all, Folks! :)

setpermissions.sh

@@ -42,8 +42,8 @@ fi
 # with a valid pathname inside.
 #
 if [ -n "$(which awk)" -a -n "$(which cut)" -a -n "$(which find)" -a -n "$(which ln)" ]; then
-    # Files containing maximum 1 line.
+    # Files containing maximum 1 line - the .metadata store is a special exception.
-    IFS=$'\n' read -r -d '' -a SUSPECTS < <( (find "$SCRPATH" -type f -exec awk 'END { if (NR < 2) print FILENAME }' {} \;) && printf '\0' )
+    IFS=$'\n' read -r -d '' -a SUSPECTS < <( (find "$SCRPATH" ! -name '.metadata' -type f -exec awk 'END { if (NR < 2) print FILENAME }' {} \;) && printf '\0' )
     # Enumerates these files.
     for suspect in "${SUSPECTS[@]}"
     do