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|
#!/bin/bash
set -e
if [ -d '/var/lib/mysql' ]; then
read -p 'mariadb seems to be installed already - I will remove it first.' -r s
if [ -n "${s}" ]; then
echo 'Aborted.'
exit
fi
sudo systemctl stop mysqld || true
sudo systemctl disable mysqld || true
sudo pacman -Rs mariadb || true
sudo rm -rf --one-file-system '/var/lib/mysql' '/etc/mysql'
fi
if [ -d '/etc/stunnel' ]; then
read -p 'stunnel seems to be installed already - I will remove it first.' -r s
if [ -n "${s}" ]; then
echo 'Aborted.'
exit
fi
sudo systemctl stop stunnel || true
sudo systemctl disable stunnel || true
sudo pacman -Rs stunnel || true
sudo rm -rf --one-file-system '/etc/stunnel'
fi
read -p 'enter new root-pw: ' -s -r root_pw
printf '\n'
read -p 'enter replikat-pw: ' -s -r replikat_pw
printf '\n'
sudo pacman -S --noconfirm mariadb stunnel
# set up mariadb
sudo mysql_install_db --user=mysql --basedir=/usr --datadir=/var/lib/mysql
sudo sed -i '
/myisam_sort_buffer_size/ a group_concat_max_len = 4096
/^#server-id/ {
s/^#//
s/[0-9]\+$/'"$RANDOM"'/
b
}
s/^server-id/#\0/
/^#skip-networking$/ s/^#//
' '/etc/mysql/my.cnf'
sudo systemctl start mysqld
sudo systemctl enable mysqld
printf '\n\n%s\n%s\n\n\n\n\n' "${root_pw}" "${root_pw}" | \
sudo mysql_secure_installation
# set up stunnel
sudo tee /etc/stunnel/stunnel.conf > /dev/null <<EOF
[buildmaster-mysql]
client = yes
accept = 127.0.0.1:33061
connect = buildmaster.archlinux32.org:3307
verifyChain = yes
CApath = /etc/ssl/certs
checkHost = buildmaster.archlinux32.org
EOF
sudo systemctl start stunnel
sudo systemctl enable stunnel
tmp_file=$(mktemp)
trap 'rm "${tmp_file}"' EXIT
ssh buildmaster '
cd /var/backup;
ls -t | grep -m1 '"'"'^database-.*\.xz$'"'"' | xargs pv
' > "${tmp_file}"
{
printf 'SHOW SLAVE STATUS;\n'
printf "CREATE USER 'webserver'@'localhost' IDENTIFIED BY 'empty';\n" \
printf "GRANT USAGE ON *.* TO 'webserver'@'localhost' IDENTIFIED BY 'empty';\n"
printf "GRANT REPLICATION CLIENT ON *.* TO 'webserver'@'localhost';\n"
printf 'GRANT %s ON buildmaster.* TO '"'"'webserver'"'"'@'"'"'localhost'"'"';\n' \
'CREATE TEMPORARY TABLES' \
'SELECT' \
'SHOW VIEW'
printf "CHANGE MASTER TO MASTER_HOST='%s', MASTER_PORT=%s, MASTER_USER='%s', MASTER_PASSWORD='%s';\n" \
'127.0.0.1' \
33061 \
'replikat' \
"${replikat_pw}"
xzcat "${tmp_file}" | pv
xzgrep -- '^-- CHANGE MASTER TO ' "${tmp_file}" | \
sed 's/^-- //'
printf 'START SLAVE;\n'
printf 'SHOW SLAVE STATUS;\n'
} | \
mysql -u root -p"${root_pw}"
printf '\n\nAll set up successfully.\n'
|
