70 lines
2.0 KiB
Bash
70 lines
2.0 KiB
Bash
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#!/bin/bash
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NODE=$1
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set -ax
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usage() {
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echo "Usage: ${0} [node-name]" 1>&2
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exit 0
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}
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do_recovery() {
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juju_status=$(mktemp)
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juju status --format json > ${juju_status}
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MYSQL_UNIT=${NODE}
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RW_MYSQL_UNIT=$(jq -r '[.applications."mysql-innodb-cluster".units | to_entries[]| select(.value."workload-status".message | contains("R/W")) | .key] | .[0]' ${juju_status})
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PASSWORD=$(juju run --unit mysql-innodb-cluster/leader leader-get mysql.passwd)
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MYSQL_UNIT_IP=$(jq -rc '.applications."mysql-innodb-cluster".units."mysql-innodb-cluster/0"."public-address"' ${juju_status})
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juju ssh ${MYSQL_UNIT} -- sudo systemctl stop mysql
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juju run-action --wait ${RW_MYSQL_UNIT} remove-instance address=${MYSQL_UNIT_IP} force=true
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cat > init_mysql.sh << EOF
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set -ax
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cd /var/lib
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mv mysql mysql.old.\$(date +%s)
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mkdir mysql
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chown mysql:mysql mysql
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chmod 700 mysql
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mysqld --initialize
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systemctl start mysql
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EOF
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juju scp init_mysql.sh ${MYSQL_UNIT}:init_mysql.sh
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juju ssh ${MYSQL_UNIT} -- "chmod +x init_mysql.sh && sudo ./init_mysql.sh"
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#exit
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cat > set_password.sh << EOF
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#!/bin/bash
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set -ax
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old_password_line=\$(grep 'temporary password' /var/log/mysql/error.log | tail -n 1)
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OLD_PASSWORD="\$(echo \${old_password_line} | awk '{print \$13}' | sed -e 's/\r//g')"
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cat > /tmp/alter_command << EOF2
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ALTER USER 'root'@'localhost' IDENTIFIED BY '${PASSWORD}';
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EOF2
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mysql -u root -p\${OLD_PASSWORD} -e \"source /tmp/alter_command\"
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EOF
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juju scp set_password.sh ${MYSQL_UNIT}:set_password.sh
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juju ssh ${MYSQL_UNIT} -- "chmod +x set_password.sh && sudo ./set_password.sh"
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juju run -u ${MYSQL_UNIT} -- charms.reactive clear_flag local.cluster.user-created
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juju run -u ${MYSQL_UNIT} -- charms.reactive clear_flag local.cluster.all-users-created
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juju run -u ${MYSQL_UNIT} -- ./hooks/update-status
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sleep 10
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juju run-action --wait ${RW_MYSQL_UNIT} add-instance address=${MYSQL_UNIT_IP}
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}
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if [ $# -ne 1 ]; then
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usage
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else
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do_recovery
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fi
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