103 lines
3.6 KiB
Markdown
103 lines
3.6 KiB
Markdown
# Pseudonymizer **(ULTIMATE)**
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> [Introduced](https://gitlab.com/gitlab-org/gitlab/merge_requests/5532) in [GitLab Ultimate][ee] 11.1.
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As GitLab's database hosts sensitive information, using it unfiltered for analytics
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implies high security requirements. To help alleviate this constraint, the Pseudonymizer
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service is used to export GitLab's data in a pseudonymized way.
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CAUTION: **Warning:**
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This process is not impervious. If the source data is available, it's possible for
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a user to correlate data to the pseudonymized version.
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The Pseudonymizer currently uses `HMAC(SHA256)` to mutate fields that shouldn't
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be textually exported. This ensures that:
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- the end-user of the data source cannot infer/revert the pseudonymized fields
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- the referential integrity is maintained
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## Configuration
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To configure the pseudonymizer, you need to:
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- Provide a manifest file that describes which fields should be included or
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pseudonymized ([example `manifest.yml` file](https://gitlab.com/gitlab-org/gitlab/tree/master/config/pseudonymizer.yml)).
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A default manifest is provided with the GitLab installation. Using a relative file path will be resolved from the Rails root.
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Alternatively, you can use an absolute file path.
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- Use an object storage and specify the connection parameters in the `pseudonymizer.upload.connection` configuration option.
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**For Omnibus installations:**
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1. Edit `/etc/gitlab/gitlab.rb` and add the following lines by replacing with
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the values you want:
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```ruby
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gitlab_rails['pseudonymizer_manifest'] = 'config/pseudonymizer.yml'
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gitlab_rails['pseudonymizer_upload_remote_directory'] = 'gitlab-elt' # bucket name
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gitlab_rails['pseudonymizer_upload_connection'] = {
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'provider' => 'AWS',
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'region' => 'eu-central-1',
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'aws_access_key_id' => 'AWS_ACCESS_KEY_ID',
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'aws_secret_access_key' => 'AWS_SECRET_ACCESS_KEY'
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}
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```
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NOTE: **Note:**
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If you are using AWS IAM profiles, be sure to omit the AWS access key and secret access key/value pairs.
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```ruby
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gitlab_rails['pseudonymizer_upload_connection'] = {
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'provider' => 'AWS',
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'region' => 'eu-central-1',
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'use_iam_profile' => true
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}
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```
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1. Save the file and [reconfigure GitLab](restart_gitlab.md#omnibus-gitlab-reconfigure)
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for the changes to take effect.
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---
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**For installations from source:**
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1. Edit `/home/git/gitlab/config/gitlab.yml` and add or amend the following
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lines:
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```yaml
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pseudonymizer:
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manifest: config/pseudonymizer.yml
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upload:
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remote_directory: 'gitlab-elt' # bucket name
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connection:
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provider: AWS
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aws_access_key_id: AWS_ACCESS_KEY_ID
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aws_secret_access_key: AWS_SECRET_ACCESS_KEY
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region: eu-central-1
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```
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1. Save the file and [restart GitLab](restart_gitlab.md#installations-from-source)
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for the changes to take effect.
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## Usage
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You can optionally run the pseudonymizer using the following environment variables:
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- `PSEUDONYMIZER_OUTPUT_DIR` - where to store the output CSV files (defaults to `/tmp`)
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- `PSEUDONYMIZER_BATCH` - the batch size when querying the DB (defaults to `100000`)
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```bash
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## Omnibus
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sudo gitlab-rake gitlab:db:pseudonymizer
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## Source
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sudo -u git -H bundle exec rake gitlab:db:pseudonymizer RAILS_ENV=production
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```
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This will produce some CSV files that might be very large, so make sure the
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`PSEUDONYMIZER_OUTPUT_DIR` has sufficient space. As a rule of thumb, at least
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10% of the database size is recommended.
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After the pseudonymizer has run, the output CSV files should be uploaded to the
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configured object storage and deleted from the local disk.
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[ee]: https://about.gitlab.com/pricing/
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