Charmed MySQL revision 151

_{April 20, 2023}

Dear community, this is to inform you that new Canonical Charmed MySQL charm is published in 8.0/stable charmhub channel for bare-metal/virtual-machines.

The features you can start using today:

• Deploying on VM (tested with LXD, MAAS)
  • juju constraints are supported to limit CPU/RAM/Storage size
• Scaling up/down in one simple juju command
• HA using Innodb Group replication
• Full backups and restores are supported when using any S3-compatible storage
• TLS support (using “tls-certificates” operator)
• DB access outside of Juju using “data-integrator”
• Data import using standard tools e.g. mysqldump, etc.
• Documentation:

What is inside the charms:

• Charmed MySQL charm ships the latest MySQL “8.0.32-0ubuntu0.22.04.2”
• VM charms based on our SNAP (Ubuntu LTS “22.04” - core22-based)
• Principal charms supports the latest LTS series “22.04” only.
• Subordinate charms support LTS “22.04” and “20.04” only.

Technical notes:

Compatibility with legacy charms:

• New MySQL charm is a juju-interface compatible replacement for legacy charms such as “MariaDB”, “OSM MariaDB”, “Percona Cluster” and “Mysql Innodb Cluster” (using legacy interface “mysql”, via endpoints “mysql” and “mysql-root”). Other legacy interfaces such as “mysql-router” interface (“db-router” endpoint) and “mysql-shared” interface (“shared-db” endpoint) are also supported. However, it is highly recommended to migrate to the modern interface ‘mysql_client ’. It can be easily done using the charms library ‘data_interfaces’ from ‘data-platform-libs’.

Please contact us, see details below, if you are considering migrating from other “legacy” charms not mentioned above. Additionally:

• Tracks description:
  • Charm MySQL charm follows the SNAP track “8.0”.
• No “latest” track in use (no surprises in tracking “latest/stable”)!
  • Charmed MySQL charms provide legacy charm through “latest/stable”.
• Charm lifecycle flowchart diagrams: MySQL.
• Modern interfaces are well described in “Interfaces catalogue” and implemented by ‘data-platform-libs’.

How to reach us:

If you would like to chat with us about your use-cases or ideas, you can reach us at Canonical Mattermost public channel or Discourse. Check all other contact details here.

Consider opening a GitHub issue if you want to open a bug report. Contribute to the project!

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