Mediawiki

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CLI Guides

This section will provide commands to achieve certain actions for managing Mediawiki

migrate site from hetzner1 to hetzner2

this process was used to migrate the mediawiki site from hetzner1 (shared hosting) to hetzner2 (dedicated server) 

####################
# run on hetzner1 #
####################

# STEP 0: CREATE BACKUPS
source /usr/home/osemain/backups/backup.settings
/usr/home/osemain/backups/backup.sh

# when finished, SSH into the dreamhost server to verify that the whole system backup was successful before proceeding
bash -c 'source /usr/home/osemain/backups/backup.settings; ssh $RSYNC_USER@$RSYNC_HOST du -sh backups/hetzner1/*'

# DECLARE VARIABLES
source /usr/home/osemain/backups/backup.settings
stamp=`date +%Y%m%d`
backupDir_hetzner1="/usr/home/osemain/tmp/backups_for_migration_to_hetzner2/wiki_${stamp}"
backupFileName_db_hetzner1="mysqldump_wiki.${stamp}.sql.bz2"
backupFileName_files_hetzner1="wiki_files.${stamp}.tar.gz"
vhostDir_hetzner1='/usr/www/users/osemain/w'
dbName_hetzner1='osewiki'
 dbUser_hetzner1="${mysqlUser_wiki}"
 dbPass_hetzner1="${mysqlPass_wiki}"

# STEP 1: BACKUP DB
mkdir -p ${backupDir_hetzner1}/{current,old}
pushd ${backupDir_hetzner1}/current/
mv ${backupDir_hetzner1}/current/* ${backupDir_hetzner1}/old/
time nice mysqldump -u"${dbUser_hetzner1}" -p"${dbPass_hetzner1}" --all-databases --single-transaction | bzip2 -c > ${backupDir_hetzner1}/current/${backupFileName_db_hetzner1}

# STEP 2: BACKUP FILES
time nice tar -czvf ${backupDir_hetzner1}/current/${backupFileName_files_hetzner1} ${vhostDir_hetzner1}

####################
# run on hetzner2 #
####################

sudo su -

# STEP 0: CREATE BACKUPS
# for good measure, trigger a backup of the entire system's database & files:
time /bin/nice /root/backups/backup.sh &>> /var/log/backups/backup.log

# when finished, SSH into the dreamhost server to verify that the whole system backup was successful before proceeding
bash -c 'source /root/backups/backup.settings; ssh $RSYNC_USER@$RSYNC_HOST du -sh backups/hetzner2/*'

# DECLARE VARIABLES
source /root/backups/backup.settings
stamp=`date +%Y%m%d`
backupDir_hetzner1="/usr/home/osemain/tmp/backups_for_migration_to_hetzner2/wiki_${stamp}"
backupDir_hetzner2="/var/tmp/backups_for_migration_from_hetzner1/wiki_${stamp}"
backupFileName_db_hetzner1="mysqldump_wiki.${stamp}.sql.bz2"
backupFileName_files_hetzner1="wiki_files.${stamp}.tar.gz"
dbName_hetzner1='osewiki'
dbName_hetzner2='osewiki_db'
 dbUser_hetzner2="osewiki_user"
 dbPass_hetzner2="CHANGEME"
vhostDir_hetzner2="/var/www/html/wiki.opensourceecology.org"
docrootDir_hetzner2="${vhostDir_hetzner2}/htdocs"

# STEP 1: COPY FROM HETZNER1

mkdir -p ${backupDir_hetzner2}/{current,old}
mv ${backupDir_hetzner2}/current/* ${backupDir_hetzner2}/old/
scp -P 222 osemain@dedi978.your-server.de:${backupDir_hetzner1}/current/* ${backupDir_hetzner2}/current/

# STEP 2: ADD DB

# create backup before we start changing the sql file
pushd ${backupDir_hetzner2}/current
cp ${backupFileName_db_hetzner1} ${backupFileName_db_hetzner1}.orig

# extract .sql.bz2 -> .sql
bzip2 -dc ${backupFileName_db_hetzner1} > db.sql

# verify the first 2 (non-comment) occurances of $dbName meet the naming convention of "<siteName>_db
vim db.sql

 time nice mysql -uroot -p${mysqlPass} -sNe "DROP DATABASE IF EXISTS ${dbName_hetzner2};" 
 time nice mysql -uroot -p${mysqlPass} -sNe "CREATE DATABASE ${dbName_hetzner2}; USE ${dbName_hetzner2};"
 time nice mysql -uroot -p${mysqlPass} < "db.sql"
 time nice mysql -uroot -p${mysqlPass} -sNe "GRANT ALL ON ${dbName_hetzner2}.* TO '${dbUser_hetzner2}'@'localhost' IDENTIFIED BY '${dbPass_hetzner2}'; FLUSH PRIVILEGES;"

# STEP 3: Add vhost files
mv ${vhostDir_hetzner2}/* ${backupDir_hetzner2}/old/
time nice tar -xzvf ${backupFileName_files_hetzner1}

# set ['Database'] Name/User/Password
# add logic to block IE6 so we can safely remove the XSS bugfix 28235 .htaccess that breaks css
# set `$wgTmpDirectory = "/var/lib/php/tmp_upload"`
# set `$wgLogo = "/images/ose-logo.png"`
vim "${vhostDir_hetzner2}/LocalSettings.php"

# download mediawiki core source code (note this must be done instead of using
# git since [a] git does not include the vendor dir contents and [b] we cannot
# use Composer since it would require breaking our hardened php.ini config

wget https://releases.wikimedia.org/mediawiki/1.30/mediawiki-1.30.0.tar.gz
tar -xzvf mediawiki-1.30.0.tar.gz
mkdir "${docrootDir_hetzner2}"
rsync -av --progress mediawiki-1.30.0/ "${docrootDir_hetzner2}/"

# copy-in our images from backups
rsync -av --progress "usr/www/users/osemain/w/images/" "${docrootDir_hetzner2}/images/"

# and move the lone image sticking in root into the images directory
rsync -av --progress "usr/www/users/osemain/w/ose-logo.png" "${docrootDir_hetzner2}/images/"

# create LocalSettings.php that just requires the file from outside the docroot
# write multi-line to file for documentation copy & paste
cat << EOF > "${docrootDir_hetzner2}/LocalSettings.php"
<?php
# including separate file that contains the database password so that it is not stored within the document root.
# For more info see:
#  * https://www.mediawiki.org/wiki/Manual:Security
#  * https://wiki.r00tedvw.com/index.php/Mediawiki/Hardening

\$docRoot = dirname( __FILE__ );
require_once "\$docRoot/../LocalSettings.php";
?>
EOF

# extensions
pushd "${docrootDir_hetzner2}/extensions"
git clone https://gerrit.wikimedia.org/r/p/mediawiki/extensions/CategoryTree.git
git clone https://gerrit.wikimedia.org/r/p/mediawiki/extensions/ConfirmAccount.git
git clone https://gerrit.wikimedia.org/r/p/mediawiki/extensions/ConfirmEdit.git
git clone https://gerrit.wikimedia.org/r/p/mediawiki/extensions/Cite.git
git clone https://gerrit.wikimedia.org/r/p/mediawiki/extensions/ParserFunctions.git
git clone https://gerrit.wikimedia.org/r/p/mediawiki/extensions/Gadgets.git
git clone https://gerrit.wikimedia.org/r/p/mediawiki/extensions/ReplaceText.git
git clone https://gerrit.wikimedia.org/r/p/mediawiki/extensions/Renameuser.git
git clone https://gerrit.wikimedia.org/r/p/mediawiki/extensions/UserMerge.git
git clone https://gerrit.wikimedia.org/r/p/mediawiki/extensions/Nuke.git

git clone https://gerrit.wikimedia.org/r/p/mediawiki/extensions/Widgets.git
pushd Widgets
git submodule init
git submodule update
popd

# skins
pushd "${docrootDir_hetzner2}/skins"
git clone https://gerrit.wikimedia.org/r/p/mediawiki/skins/CologneBlue.git
git clone https://gerrit.wikimedia.org/r/p/mediawiki/skins/Modern.git
git clone https://gerrit.wikimedia.org/r/p/mediawiki/skins/MonoBook.git
git clone https://gerrit.wikimedia.org/r/p/mediawiki/skins/Vector.git
popd

# set permissions
chown -R not-apache:apache "${vhostDir_hetzner2}"
find "${vhostDir_hetzner2}" -type d -exec chmod 0050 {} \;
find "${vhostDir_hetzner2}" -type f -exec chmod 0040 {} \;

chown not-apache:apache-admins "${vhostDir_hetzner2}/LocalSettings.php"
chmod 0040 "${vhostDir_hetzner2}/LocalSettings.php"

[ -d "${docrootDir_hetzner2}/images" ] || mkdir "${docrootDir_hetzner2}/images"
chown -R apache:apache "${docrootDir_hetzner2}/images"
find "${docrootDir_hetzner2}/images" -type f -exec chmod 0660 {} \;
find "${docrootDir_hetzner2}/images" -type d -exec chmod 0770 {} \;

# remove the block that attempts to fix bug 28235, as it breaks css
vim "${docrootDir_hetzner2}"

# attempt to update
pushd ${docrootDir_hetzner2}/maintenance
php update.php

popd
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