mysql-backup-sidecar with GCP storage support

This image is based on https://github.com/woolfg/mysql-backup-sidecar and extends it by the feature to upload backups to Google Cloud Storage. The script uses the Google Cloud Node.js client to upload files.

Usage/config

Requirements:

• Google Cloud Storage bucket for your backups. It is also recommended to create a lifecycle policy to remove backups automatically after some time.
• Service account user and JSON key file with at least create permissions to put files into the bucket.

This project adds the following environment variables to the mother project which handles the backup itself. (For options of the mother backup container see the docs of woolfg/mysql-backup-sidecar)

• GS_PROJECT_NAME Name that is used to identify your backup files. The backups are uploaded to a directory named like the project name.
• GS_KEY_FILE path to the GCP service account JSON file. We recommend to use docker secrets to mount it (see also example docker-compose file).
• GS_BUCKET_NAME name of your storage bucket in Google Clous Storage
• GS_FULLBACKUPS_ONLY optional flag to ignore incremental backups. (default is false)
• AFTER_BACKUP_SCRIPT: node /gs-upload has to be always specified. This option executes the upload script by the main backup script.

Example

GS_PROJECT_NAME: myproject
GS_KEY_FILE: /run/secrets/gs_key_file
GS_BUCKET_NAME: dev_generic
GS_FULLBACKUPS_ONLY: "true"
AFTER_BACKUP_SCRIPT: node /gs-upload

A full example can be found in example/docker-compose.yml.