Charmed MySQL K8s revision 99
September 18, 2023
Dear community, this is to inform you that new Canonical Charmed MySQL K8s is published in 8.0/stable charmhub channel for Kubernetes.
The features you can start using today:
- Add Juju 3 support (Juju 2 is still supported) [DPE-1790]
- Peer secrets are now stored in Juju secrets [DPE-1813]
- Charm minor upgrades and minor rollbacks [DPE-2206]
- Profiles configuration support [DPE-2154]
- Workload updated to MySQL 8.0.34 [DPE-2426]
- Support
juju expose[DPE-1215] - Add the first Prometheus alert rule (COS Loki) [PR#244]
- New documentation:
- All the functionality from the previous revisions
Bugfixes included:
Canonical Data issues are now public on both Jira and GitHub platforms.
GitHub Releases provide a detailed list of bugfixes/PRs/Git commits for each revision.
Highlights for the current revision:
- DPE-1919 Fixed GKE deployment support
- DPE-1519 Stabilized integration with mysql-route-k8s
- DPE-2069 Fixed MySQL max_connections auto tune
- DPE-2225 Fixed MySQL memory allocation (use K8s
Allocatablememory instead offree+ considergroup_replication_message_cache_size) - DPE-988 Fixed standby units (9+ cluster members are waiting to join the cluster)
- DPE-2352 Start mysqld-exporter on COS relation only + restart upon monitoring password change
- DPE-1512 Auto-generate
username/databasewhen config values are empty (for legacymysqlrelation) - DPE-2178 Stop configuring mysql user
root@%(removed as no longer necessary)
What is inside the charms:
- Charmed MySQL K8s ships the latest MySQL “8.0.34-0ubuntu0.22.04.1”
- CLI mysql-shell updated to “8.0.34-0ubuntu0.22.04.1~ppa1”
- Backup tools xtrabackup/xbcloud updated to “8.0.34-29”
- The Prometheus mysqld-exporter is “0.14.0-0ubuntu0.22.04.1~ppa1”
- K8s charms based on our ROCK OCI (Ubuntu LTS “22.04” - ubuntu:22.04-based)
- Principal charms supports the latest LTS series “22.04” only.
- Subordinate charms support LTS “22.04” and “20.04” only.
Technical notes:
- Upgrade (
juju refresh) from the old-stable revision 75 to the current-revision 99 is NOT supported!!! The upgrade functionality is new and supported for revision 99+ only! - Please check additionally the previously posted restrictions.
- Ensure the charm requirements met.
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!
Hints:
Please check all the previous release notes if you are jumping over the several stable revisions!