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set -eux ## important for unbound variable ?
## Require these to be set
# MYSQL_ROOT_PASSWORD=
# MYSQL_CONTAINER=
[ "${MYSQL_ROOT_PASSWORD}" ] || {
echo "Error: you must set \$MYSQL_ROOT_PASSWORD prior to running this script." >&2
exit 1
}
[ "${MYSQL_CONTAINER}" ] || {
echo "Error: you must set \$MYSQL_CONTAINER prior to running this script." >&2
exit 1
}
##
## Init, to setup passwordless connection to mysql
##
type -p mysql >/dev/null || {
case $(lsb_release -is) in
Debian)
case $(lsb_release -rs) in
10|11|12)
apt-get install -y default-mysql-client </dev/null
;;
*)
apt-get install -y mysql-client </dev/null
;;
esac
;;
Ubuntu)
apt-get install -y mysql-client </dev/null
;;
esac || {
echo "Error: could not install mysql client" >&2
exit 1
}
}
if ! [ -e "/root/.my.cnf" ]; then
cat <<EOF > ~/.my.cnf
[client]
password=${MYSQL_ROOT_PASSWORD}
EOF
chmod 600 ~/.my.cnf
fi
##
## installation of the mysql-backup script
##
apt-get install -y kal-shlib-{core,pretty,common} </dev/null
ln -sf "${PWD}/resources/bin/mysql-backup" /usr/local/sbin/mysql-backup
##
## Connection to cron
##
depends cron
cat <<EOF > /etc/cron.d/mysql-backup
SHELL=/bin/bash
PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
0 * * * * root /usr/local/sbin/mysql-backup --host \$(docker-ip "$MYSQL_CONTAINER" 2>/dev/null | sed -r 's/ +/ /g' | cut -f 3 -d " ") | logger -t mysql-backup
EOF
##
## Connection with backup
##
if type -p mirror-dir >/dev/null 2>&1; then
[ -d "/etc/mirror-dir" ] || {
echo "'mirror-dir' is installed but no '/etc/mirror-dir' was found." >&2
exit 1
}
depends shyaml
if ! sources=$(shyaml get-values default.sources < /etc/mirror-dir/config.yml); then
echo "Couldn't query 'default.sources' in '/etc/mirror-dir/config.yml'." >&2
exit 1
fi
if ! echo "$sources" | grep "^/var/backups/mysql$" 2>/dev/null; then
sed -i '/sources:/a\ - /var/backups/mysql' /etc/mirror-dir/config.yml
cat <<EOF >> /etc/mirror-dir/config.yml
/var/backups/mysql:
exclude:
- "/*.inprogress"
EOF
fi
else
echo "warn: 'mirror-dir' not installed, backup won't be sent" >&2
fi