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Percona Operator for MySQL
Percona Operator for MySQL based on Percona XtraDB Cluster 1.12.0 (2022-12-07)
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    • Welcome
      • System Requirements
      • Design and architecture
      • Comparison with other solutions
      • Install with Helm
      • Install with kubectl
      • Install on Minikube
      • Install on Google Kubernetes Engine (GKE)
      • Install on Amazon Elastic Kubernetes Service (AWS EKS)
      • Install on Microsoft Azure Kubernetes Service (AKS)
      • Install on OpenShift
      • Generic Kubernetes installation
      • Multi-cluster and multi-region deployment
      • Application and system users
      • Changing MySQL Options
      • Anti-affinity and tolerations
      • Labels and annotations
      • Local Storage support
      • Defining environment variables
      • Load Balancing with HAProxy
      • Load Balancing with ProxySQL
      • Transport Encryption (TLS/SSL)
      • Data at rest encryption
      • Telemetry
      • Backup and restore
      • Upgrade Database and Operator
      • Horizontal and vertical scaling
      • Monitor with Percona Monitoring and Management (PMM)
      • Add sidecar containers
      • Restart or pause the cluster
      • Crash recovery
      • Debug and troubleshoot
      • How to install Percona XtraDB Cluster in multi-namespace (cluster-wide) mode
      • How to upgrade Percona XtraDB Cluster manually
      • How to use private registry
      • Custom Resource options
      • Percona certified images
      • Operator API
      • Frequently Asked Questions
      • Old releases (documentation archive)
      • Release notes index
      • Percona Operator for MySQL based on Percona XtraDB Cluster 1.12.0 (2022-12-07)
        • Release Highlights
        • New Features
        • Improvements
        • Bugs Fixed
        • Supported Platforms
      • Percona Operator for MySQL based on Percona XtraDB Cluster 1.11.0 (2022-06-03)
      • Percona Distribution for MySQL Operator 1.10.0 (2021-11-24)
      • Percona Distribution for MySQL Operator 1.9.0 (2021-08-09)
      • Percona Kubernetes Operator for Percona XtraDB Cluster 1.8.0 (2021-05-26)
      • Percona Kubernetes Operator for Percona XtraDB Cluster 1.7.0 (2021-02-02)
      • Percona Kubernetes Operator for Percona XtraDB Cluster 1.6.0 (2020-09-09)
      • Percona Kubernetes Operator for Percona XtraDB Cluster 1.5.0 (2020-07-21)
      • Percona Kubernetes Operator for Percona XtraDB Cluster 1.4.0 (2020-04-29)
      • Percona Kubernetes Operator for Percona XtraDB Cluster 1.3.0 (2020-01-06)
      • Percona Kubernetes Operator for Percona XtraDB Cluster 1.2.0 (2019-09-20)
      • Percona Kubernetes Operator for Percona XtraDB Cluster 1.1.0 (2019-07-15)
      • Percona Kubernetes Operator for Percona XtraDB Cluster 1.0.0 (2019-05-29)

    • Release Highlights
    • New Features
    • Improvements
    • Bugs Fixed
    • Supported Platforms

    Percona Operator for MySQL based on Percona XtraDB Cluster 1.12.0¶

    • Date

    December 7, 2022

    • Installation

    Installing Percona Operator for MySQL based on Percona XtraDB Cluster

    Release Highlights¶

    • Azure Kubernetes Service (AKS) is now officially supported platform, so developers and vendors of the solutions based on the Azure platform can take advantage of the official support from Percona or just use officially certified Percona Operator for MysQL images; also, Azure Blob Storage can now be used for backups
    • This release also includes fixes to the following CVEs (Common Vulnerabilities and Exposures): CVE-2021-20329 (potential injections in MongoDB Go Driver used HAProxy, which had no effect on Percona Operator for MySQL), and CVE-2022-42898 (images used by the Operator suffering from the unauthenticated denial of service vulnerability). Users of previous Operator versions are advised to upgrade to version 1.12.0 which resolves this issue

    New Features¶

    • K8SPXC-1043 and K8SPXC-1005: Add support for the Azure Kubernetes Service (AKS) platform and allow using Azure Blob Storage for backups
    • K8SPXC-1010: Allow using templates to define innodb_buffer_pool_size auto-tuning based on container memory limits
    • K8SPXC-1082: New ignoreAnnotations and ignoreLabels Custom Resource options allow to list specific annotations and labels for Kubernetes Service objects, which the Operator should ignore (useful with various Kubernetes flavors which add annotations to the objects managed by the Operator)
    • K8SPXC-1120: Add headless service support for the restore Pod to make it possible restoring backups from a Persistent Volume on a tenant network (thanks to Zulh for contribution)
    • K8SPXC-1140: The Operator now allows using SSL channel for cross-site replication (thanks to Alvaro Aguilar-Tablada Espinosa for contribution)

    Improvements¶

    • K8SPXC-1104: Starting from now, the Operator changed its API version to v1 instead of having a separate API version for each release. Three last API version are supported in addition to v1, which substantially reduces the size of Custom Resource Definition to prevent reaching the etcd limit
    • K8SPXC-955: Add Custom Resource options to set static IP-address for the HAProxy and ProxySQL LoadBalancers
    • K8SPXC-1032: Disable automated upgrade by default to prevent an unplanned downtime for user applications and to provide defaults more focused on strict user’s control over the cluster
    • K8SPXC-1095: Process the SIGTERM signal to avoid unneeded lags in case of Percona XtraDB Cluster recovery or using the debug image to start up
    • K8SPXC-1113: Utilize dual password feature of MySQL 8 to avoid cluster restart when changing password of the monitor user
    • K8SPXC-1125: The Operator now does not attempt to start Percona Monitoring and Management (PMM) client sidecar if the corresponding secret does not contain the pmmserver or pmmserverkey key
    • K8SPXC-1153: Configuring the log structuring and leveling is now supported using the LOG_STRUCTURED and LOG_LEVEL environment variables. This reduces the information overload in logs, still leaving the possibility of getting more details when needed, for example, for debugging
    • K8SPXC-1123: Starting from now, installing the Operator for cluster-wide (multi-namespace) doesn’t require to add Operator’s own namespace to the list of watched namespaces (thanks to Bart Vercoulen for reporting this issue)
    • K8SPXC-1030: The new delete-ssl finalizer can now be used to automatically delete objects created for SSL (Secret, certificate, and issuer) in case of cluster deletion

    Bugs Fixed¶

    • K8SPXC-1158: Fix CVE-2022-42898 vulnerability found in MIT krb5, which made images used by the Operator vulnerable to DoS attacks
    • K8SPXC-1028: Fix a bug that prevented the Operator to automatically tune innodb_buffer_pool_size and innodb_buffer_pool_chunk_size variables
    • K8SPXC-1036: Fix the bug that caused Liveness Probe failure when XtraBackup was running and the wsrep_sync_wait option was set, making the instance to be rejected from the cluster
    • K8SPXC-1065: Fix a bug due to which, in a pair of scheduled backups close in time, the next backup could overwrite the previous one: bucket destination was made more unique by including seconds
    • K8SPXC-1059: Fix a bug due to which pxc-monit and proxysql-monit containers were printing passwords in their logs (thanks to zlcnju for contribution)
    • K8SPXC-1099: Fix CrashLoopBackOff error caused by incorrect (non-atomic) multi-user password change
    • K8SPXC-1100: Fix a bug that made it impossible to use slash characters in the monitor user’s password
    • K8SPXC-1118: Fix a bug due to which the point-in-time recovery collector only reported warnings in logs when the gaps in binlogs were found. Starting from now, such backups are marked as not suitable for consistent PITR, and restoring them with point-in-time recovery fails without manual user’s intervention
    • K8SPXC-1137: Fix a bug that prevented adding, deleting or updating ProxySQL Service labels/annotations except at the Service creation time
    • K8SPXC-1138: Fix a bug due to which not enough responsive scripts for readiness and liveness Probes could be the reason of killing the overloaded database Pods

    Supported Platforms¶

    The following platforms were tested and are officially supported by the Operator 1.12.0:

    • Google Kubernetes Engine (GKE) 1.21 - 1.24

    • Amazon Elastic Container Service for Kubernetes (EKS) 1.21 - 1.24

    • Azure Kubernetes Service (AKS) 1.22 - 1.24

    • OpenShift 4.10 - 4.11

    • Minikube 1.28

    This list only includes the platforms that the Percona Operators are specifically tested on as part of the release process. Other Kubernetes flavors and versions depend on the backward compatibility offered by Kubernetes itself.

    Contact Us

    For free technical help, visit the Percona Community Forum.

    To report bugs or submit feature requests, open a JIRA ticket.

    For paid support and managed or consulting services , contact Percona Sales.

    Last update: 2023-02-09
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