Charmed MySQL Router Reference | Revision 223/224/225

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Reference > Release Notes > All releases > Revision 223/224/225

Revision 223/224/225 (dpe/candidate only)

December 2, 2024

Dear community,

Canonical’s newest Charmed MySQL Router operator has been published in the dpe/candidate channel.

Due to the newly added support for arm64 architecture and Ubuntu 20.04 LTS base, the MySQL Router charm now releases three revisions simultaneously:

  • Revision 223 is built for amd64 on 20.04 LTS
  • Revision 224 is built for amd64 on 22.04 LTS
  • Revision 225 is built for arm64 on 22.04 LTS

To make sure you deploy for the right architecture, we recommend setting an architecture constraint for your entire Juju model.

Otherwise, you can specify the architecture at deploy time with the --constraints flag as follows:

juju deploy mysql-router --constraints arch=<arch>

where <arch> can be amd64 or arm64.

Since MySQL Router is a subordinate charm, it will automatically use the same base as the principal charm.

Highlights

Below is an overview of the major highlights, enhancements, and bugfixes in this revision. For a detailed list of all commits since the last stable release, see the GitHub release notes.

Enhancements

  • Upgraded MySQL from v8.0.36 → v8.0.37 (see Packaging)
  • Added support or ARM64 architecture (PR #472)

Bugfixes

  • Stabilized exporter tests by using listen-port to avoid ephemeral ports in PR #154 (DPE-4173)
  • Fixed release CI in PR #152
  • Updated Python dependencies

Technical details

This section contains some technical details about the charm’s contents and dependencies.

If you are jumping over several stable revisions, check previous release notes before upgrading.

Requirements

See the system requirements page in the MySQL documentation for more details about software and hardware prerequisites.

Packaging

This charm is based on the charmed-mysql snap Revision 113/114. It packages:

Libraries and interfaces

  • mysql v0
  • grafana_agent v0 for integration with Grafana
    • Implements cos_agent interface
  • rolling_ops v0 for rolling operations across units
    • Implements rolling_op interface
  • tempo_k8s v1, v2 for integration with Tempo charm
    • Implements tracing interface
  • tls_certificates_interface v2 for integration with TLS charms
    • Implements tls-certificates interface

See the /lib/charms directory on GitHub for a full list of supported libraries.

See the Integrations tab for a full list of supported integrations/interfaces/endpoints.

Contact us

Charmed MySQL is an open source project that warmly welcomes community contributions, suggestions, fixes, and constructive feedback.

  • Raise software issues or feature requests on GitHub
  • Report security issues through Launchpad
  • Contact the Canonical Data Platform team through our Matrix channel.