Go MAD

MySQL anonymized dump

This project aims to have a tool that allows mysql repositories to be quickly dump in an anonymized form.

CommitStrip Illustration - we all do it, right?

Since we shouldn't, never ever, directly duplicate a production db to QA, testing or dev; this way we can safely perform that regression or performance test.

I have found numerous projects that strive to do somehow the same, but none gave me the tooling that would fit my requirements, which are, have a sort of faker and fill the mysql dump data with them

Notorious Projects that could do similar:

• mysqlsuperdump, but hasn't had updates since 2017
• mtk-dump based on the previous, anonymization via query

Installation

You can install it using go install or by using one of the pre compiled binaries available in the (releases)[https://github.com/doutorfinancas/go-mad/releases]

go install github.com/doutorfinancas/[email protected]

Usage

from shell, call:

go-mad my_database --config=config_example.yml

if you are using innodb, then the configurations recommended are:

go-mad my_database --config=config_example.yml --single-transaction --quick

It will create a larger dump, but wraps everything around a transaction, disables locks and dumps writes faster To reduce insert impact, you can replace the --quick with --insert-into-limit=10 or whichever limit size would be best for you.

The database argument is required. Currently, only exporting one database is supported

you can use either SQL direct commands or faker on rewrites. Else it's compatible with mtk-dump config

please refer to faker documentation here

Available Flags (all are optional)

Flag (short)	Description	Type
--host (-h)	your MySQL host, default 127.0.0.1	string
--user (-u)	your user to authenticate in mysql, no default	string
--password (-p)	password to authenticate in mysql, no default	string
--port (-P)	port to your mysql installation, default 3306	string
--config (-c)	path to your go-mad config file, example below	string
--output (-o)	path to the intended output file, default STDOUT	string
--char-set	uses SET NAMES command with provided charset, default utf8	string
--trigger-definer	changes trigger delimiter to the string you pass, default is ';'	string
--insert-into-limit	defines limit to be used with each insert statement, cannot use with --quick, default 100	int
--debug (-v)	turns on verbose mode if passed	bool
--quiet (-q)	disables log output if passed	bool
--skip-lock-tables	skips locking mysql tables when dumping	bool
--single-transaction	does the dump within a single transaction by issuing a BEGIN Command	bool
--quick	dump writes row by row as opposed to using extended inserts	bool
--add-locks	add write lock statements to the dump	bool
--hex-encode	performs hex encoding and respective decode statement for binary values	bool
--ignore-generated	strips generated columns from create statements	bool
--dump-trigger	dumps triggers from database	bool
--skip-definer	skips definer of triggers dumps (used in conjuntion with --dump-trigger)	bool

Configuration Example

rewrite:
  users:
    email: "'faker.Internet().Email()'"
    password: "'FAKE_PASSWORD'"
    username: "'faker.Internet().Email()'"
    # name: faker.Person().Name()
    name: "SELECT names FROM random WHERE id = users.id"

nodata:
  - actions
  - exports
  - tokens

ignore:
  - advertisers
  - transactions
  - cache

where:
  users: |-
    id < 5000

Contributing

Feel free to contribute to the project, as in form of opening issues as by submitting a pull request To do so:

• Clone the project
• Make sure you have golint-ci installed
• If you have pre-commit, you can make hook-setup
• Write your code, run make test and commit (it should be signed)
• Open pull request and wait for our review :)

Next Steps (ToDos)

• Adds support for triggers (thank you @shyim)
• Adds support to exporting multiple databases at a time
• Exports run in goroutines to accelerate when --parallel is passed
• Add support for env vars
• Feel free to expand this list