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Package clone-db
Short Description Package for cloning medium-size databases by ordering tables by foreign-key dependencies and running batch inserts
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Informations about the package clone-db
A Laravel package for cloning medium-size databases
This package was created as a solution to the problem of cloning medium/large databases between connections, for example pulling in a live database (or a subet of one) to staging or development environments where there is a need to play with real data. Large sql dump files are often too big to import in one go and can hit issues with memory limits (packet size), especially on micro servers. While this is an old problem, there are still surprisingly few straightforward ways to go about it. This package is an attempt at an out-of-the-box solution in the form of a Laravel package which provides a new artisan command for cloning one database to another.
- Attempts to preserve data integrity and avoid foreign-key constraint errors by automatically ordering tables by foreign key dependencies, creating the 'master' tables first, and dependent tables sequentially afterwards, ignoring new rows added to the latter tables since the script was initiated. (Note that mutually-dependent data sets are not supported).
- Avoids php/mysql memory limits by 'chunking' data, i.e. selecting & inserting in configurable batch sizes.
Obviously, running this script is destructive. Please ensure backups of all relevant databases have been taken before starting.
Instructions
composer require inigopascall/clone-db
php artisan vendor:publish --provider="InigoPascall\CloneDB\Providers\CloneDBProvider"
1. Configure the config file as needed
app/config/clone-db.php
Sensible defaults have been pre-set, with examples given in the comments in this file of how to fine-tune things to suit your needs.
2. Make sure the source & target databases are configured correctly in your app's config
app/config/database.php
.env
3. run the command with the source & target connection names as parameters. Check & confirm output.
php artisan clone:db my_source_db_connection my_target_db_connection
Cloning a remote database via SSH
SSH config for your server pointing to the private key location
~/.ssh/config
Open SSH connection with ssh remoteservername -N -L 13306:localhost:3306 username@{server ip address}
app/config/database.php entry for the connection would then be set with localhost and the local port number specified in the above command (13306):
