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November 3, 2021 09:29
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this simple script searches all docker container and do a full db backup of all databases
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| #!/bin/bash | |
| mysqlContainer=$(docker ps | grep 'mysql\|maria' | awk {'print $NF'}) #gets every container with a name containing mysql/mariadb | |
| postgreContainer=$(docker ps | grep -Ei 'postgre'| grep -Eiv 'gitlab' | awk {'print $NF'}) #gets every container with a name containing postgre | |
| gitlabPotsgreContainer=$(docker ps | grep -Ei 'postgre'| grep -Ei 'gitlab' | awk {'print $NF'}) #special gitlab because it use other env variables | |
| timestamp=$(date +%Y-%m-%d_%H-%M-%S) | |
| for container in $mysqlContainer; do | |
| containerStringParts=$(echo $container | tr "." "\n") | |
| for single in $containerStringParts; do | |
| simpleName=$single | |
| break 1 | |
| done | |
| docker exec $container sh -c 'exec mysqldump "$MYSQL_DATABASE" -u"$MYSQL_USER" -p"$MYSQL_PASSWORD" -y' >/root/backups/db/$simpleName-$timestamp.sql | |
| done | |
| for container in $postgreContainer; do | |
| containerStringParts=$(echo $container | tr "." "\n") | |
| for single in $containerStringParts; do | |
| simpleName=$single | |
| break 1 | |
| done | |
| docker exec $container sh -c 'pg_dump --dbname=postgresql://"$POSTGRES_USER":"$POSTGRES_PASSWORD"@localhost/"$POSTGRES_DB"' > /root/backups/db/$simpleName-$timestamp.sql | |
| done | |
| for container in $gitlabPotsgreContainer; do | |
| containerStringParts=$(echo $container | tr "." "\n") | |
| for single in $containerStringParts; do | |
| simpleName=$single | |
| break 1 | |
| done | |
| docker exec $container sh -c 'pg_dump --dbname=postgresql://"$DB_USER":"$DB_PASS"@localhost/"$DB_NAME"' > /root/backups/db/$simpleName-$timestamp.sql | |
| done |
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