Custom Resource options ¶

The operator is configured via the spec section of the deploy/cr.yaml file. This file contains the following spec sections to configure three main subsystems of the cluster:

Key	Value type	Default	Description
upgradeOptions	subdoc		Percona XtraDB Cluster upgrade options section
pxc	subdoc		Percona XtraDB Cluster general section
proxysql	subdoc		ProxySQL section
pmm	subdoc		Percona Monitoring and Management section
backup	subdoc		Percona XtraDB Cluster backups section
allowUnsafeConfigurations	boolean	`false`	Prevents users from configuring a cluster with unsafe parameters such as starting the cluster with less than 3 nodes or starting the cluster without TLS/SSL certificates
secretsName	string	`my-cluster-secrets`	A name for users secrets
crVersion	string	`1.6.0`	Version of the Operator the Custom Resource belongs to
vaultSecretName	string	`keyring-secret-vault`	A secret for the HashiCorp Vault to carry on Data-at-Rest Encryption
sslSecretName	string	`my-cluster-ssl`	A secret with TLS certificate generated for external communications, see Transport Layer Security (TLS) for details
sslInternalSecretName	string	`my-cluster-ssl-internal`	A secret with TLS certificate generated for internal communications, see Transport Layer Security (TLS) for details
updateStrategy	string	`SmartUpdate`	A strategy the Operator uses for upgrades

Upgrade Options Section ¶

The upgradeOptions section in the deploy/cr.yaml file contains various configuration options to control Percona XtraDB Cluster upgrades.

Key	upgradeOptions.versionServiceEndpoint
Value	string
Example	`https://check.percona.com/versions`
Description	The Version Service URL used to check versions compatibility for upgrade

Key	upgradeOptions.apply
Value	string
Example	`Disabled`
Description	Specifies how updates are processed by the Operator. `Never` or `Disabled` will completely disable automatic upgrades, otherwise it can be set to `Latest` or `Recommended` or to a specific version string of PXC (e.g. `8.0.19-10.1`) that is wished to be version-locked (so that the user can control the version running, but use automatic upgrades to move between them).

Key	upgradeOptions.schedule
Value	string
Example	`0 2 * * *`
Description	Scheduled time to check for updates, specified in the crontab format

PXC Section ¶

The pxc section in the deploy/cr.yaml file contains general configuration options for the Percona XtraDB Cluster.

Key	pxc.size
Value	int
Example	`3`
Description	The size of the Percona XtraDB cluster must be >= 3 for High Availability

Key	pxc.image
Value	string
Example	`percona/percona-xtradb-cluster:8.0.20-11.1`
Description	The Docker image of the Percona cluster used (actual image names for PXC 8.0 and PXC 5.7 can be found in the list of certified images)

Key	pxc.readinessDelaySec
Value	int
Example	`15`
Description	Adds a delay before a run check to verify the application is ready to process traffic

Key	pxc.livenessDelaySec
Value	int
Example	`300`
Description	Adds a delay before the run check ensures the application is healthy and capable of processing requests

Key	pxc.forceUnsafeBootstrap
Value	boolean
Example	`false`
Description	The setting can be reset in case of a sudden crash when all nodes may be considered unsafe to bootstrap from. The setting lets a node be selected and set to `safe_to_bootstrap` and provides data recovery

Key	pxc.configuration
Value	string
Example	`\|` `[mysqld]` `wsrep_debug=ON` `wsrep-provider_options=gcache.size=1G;gcache.recover=yes`
Description	The `my.cnf` file options to be passed to Percona XtraDB cluster nodes

Key	pxc.imagePullSecrets.name
Value	string
Example	`private-registry-credentials`
Description	The Kubernetes ImagePullSecret

Key	pxc.priorityClassName
Value	string
Example	`high-priority`
Description	The Kubernetes Pod priority class

Key	pxc.schedulerName
Value	string
Example	`default-scheduler`
Description	The Kubernetes Scheduler

Key	pxc.annotations
Value	label
Example	`iam.amazonaws.com/role: role-arn`
Description	The Kubernetes annotations

Key	pxc.labels
Value	label
Example	`rack: rack-22`
Description	Labels are key-value pairs attached to objects

Key	pxc.resources.requests.memory
Value	string
Example	`1G`
Description	The Kubernetes memory requests for a PXC container

Key	pxc.resources.requests.cpu
Value	string
Example	`600m`
Description	Kubernetes CPU requests for a PXC container

Key	pxc.resources.limits.memory
Value	string
Example	`1G`
Description	Kubernetes memory limits for a PXC container

Key	pxc.nodeSelector
Value	label
Example	`disktype: ssd`
Description	Kubernetes nodeSelector

Key	pxc.affinity.topologyKey
Value	string
Example	`kubernetes.io/hostname`
Description	The Operator topology key node anti-affinity constraint

Key	pxc.affinity.advanced
Value	subdoc
Example
Description	In cases where the Pods require complex tuning the advanced option turns off the `topologyKey` effect. This setting allows the standard Kubernetes affinity constraints of any complexity to be used

Key	pxc.tolerations
Value	subdoc
Example	`node.alpha.kubernetes.io/unreachable`
Description	Kubernetes Pod tolerations

Key	pxc.podDisruptionBudget.maxUnavailable
Value	int
Example	`1`
Description	The Kubernetes podDisruptionBudget specifies the number of Pods from the set unavailable after the eviction

Key	pxc.podDisruptionBudget.minAvailable
Value	int
Example	`0`
Description	The Kubernetes podDisruptionBudget Pods that must be available after an eviction

Key	pxc.volumeSpec.emptyDir
Value	string
Example	`{}`
Description	The Kubernetes emptyDir volume The directory created on a node and accessible to the PXC Pod containers

Key	pxc.volumeSpec.hostPath.path
Value	string
Example	`/data`
Description	Kubernetes hostPath The volume that mounts a directory from the host node’s filesystem into your Pod. The path property is required

Key	pxc.volumeSpec.hostPath.type
Value	string
Example	`Directory`
Description	The Kubernetes hostPath. An optional property for the hostPath

Key	pxc.volumeSpec.persistentVolumeClaim.storageClassName
Value	string
Example	`standard`
Description	Set the Kubernetes storage class to use with the PXC PersistentVolumeClaim

Key	pxc.volumeSpec.persistentVolumeClaim.accessModes
Value	array
Example	`[ReadWriteOnce]`
Description	The Kubernetes PersistentVolumeClaim access modes for the Percona XtraDB cluster

Key	pxc.volumeSpec.resources.requests.storage
Value	string
Example	`6Gi`
Description	The Kubernetes PersistentVolumeClaim size for the Percona XtraDB cluster

Key	pxc.gracePeriod
Value	int
Example	`600`
Description	The Kubernetes grace period when terminating a Pod

Key	pxc.containerSecurityContext
Value	subdoc
Example	`privileged: true`
Description	A custom Kubernetes Security Context for a Container to be used instead of the default one

Key	pxc.podSecurityContext
Value	subdoc
Example	`fsGroup: 1001` `supplementalGroups: [1001, 1002, 1003]`
Description	A custom Kubernetes Security Context for a Pod to be used instead of the default one

HAProxy Section ¶

The haproxy section in the deploy/cr.yaml file contains configuration options for the HAProxy service.

Key	haproxy.enabled
Value	boolean
Example	`true`
Description	Enables or disables load balancing with HAProxy Services

Key	haproxy.size
Value	int
Example	`3`
Description	The number of the HAProxy Pods to provide load balancing

Key	haproxy.image
Value	string
Example	`percona/percona-xtradb-cluster-operator:1.6.0-haproxy`
Description	HAProxy Docker image to use

Key	haproxy.imagePullSecrets.name
Value	string
Example	`private-registry-credentials`
Description	The Kubernetes imagePullSecrets for the HAProxy image

Key	haproxy.configuration
Value	string
Example
Description	The custom HAProxy configuration file contents

Key	haproxy.annotations
Value	label
Example	`iam.amazonaws.com/role: role-arn`
Description	The Kubernetes annotations metadata

Key	haproxy.labels
Value	label
Example	`rack: rack-22`
Description	Labels are key-value pairs attached to objects

Key	haproxy.servicetype
Value	string
Example	`ClusterIP`
Description	Specifies the type of Kubernetes Service to be used

Key	haproxy.externalTrafficPolicy
Value	string
Example	`Cluster`
Description	Specifies whether Service should route external traffic to cluster-wide or node-local endpoints (it can influence the load balancing effectiveness)

Key	haproxy.resources.requests.memory
Value	string
Example	`1G`
Description	The Kubernetes memory requests for the main HAProxy container

Key	haproxy.resources.requests.cpu
Value	string
Example	`600m`
Description	Kubernetes CPU requests for the main HAProxy container

Key	haproxy.resources.limits.memory
Value	string
Example	`1G`
Description	Kubernetes memory limits for the main HAProxy container

Key	haproxy.resources.limits.cpu
Value	string
Example	`700m`
Description	Kubernetes CPU limits for the main HAProxy container

Key	haproxy.sidecarResources.requests.memory
Value	string
Example	`1G`
Description	The Kubernetes memory requests for the sidecar HAProxy containers

Key	haproxy.sidecarResources.requests.cpu
Value	string
Example	`500m`
Description	Kubernetes CPU requests for the sidecar HAProxy containers

Key	haproxy.sidecarResources.limits.memory
Value	string
Example	`2G`
Description	Kubernetes memory limits for the sidecar HAProxy containers

Key	haproxy.sidecarResources.limits.cpu
Value	string
Example	`600m`
Description	Kubernetes CPU limits for the sidecar HAProxy containers

Key	haproxy.priorityClassName
Value	string
Example	`high-priority`
Description	The Kubernetes Pod Priority class for HAProxy

Key	haproxy.schedulerName
Value	string
Example	`default-scheduler`
Description	The Kubernetes Scheduler

Key	haproxy.nodeSelector
Value	label
Example	`disktype: ssd`
Description	Kubernetes nodeSelector

Key	haproxy.affinity.topologyKey
Value	string
Example	`kubernetes.io/hostname`
Description	The Operator topology key node anti-affinity constraint

Key	haproxy.affinity.advanced
Value	subdoc
Example
Description	If available it makes a topologyKey node affinity constraint to be ignored

Key	haproxy.tolerations
Value	subdoc
Example	`node.alpha.kubernetes.io/unreachable`
Description	Kubernetes Pod tolerations

Key	haproxy.podDisruptionBudget.maxUnavailable
Value	int
Example	`1`
Description	The Kubernetes podDisruptionBudget specifies the number of Pods from the set unavailable after the eviction

Key	haproxy.podDisruptionBudget.minAvailable
Value	int
Example	`0`
Description	The Kubernetes podDisruptionBudget Pods that must be available after an eviction

Key	haproxy.gracePeriod
Value	int
Example	`30`
Description	The Kubernetes grace period when terminating a Pod

Key	haproxy.loadBalancerSourceRanges
Value	string
Example	`10.0.0.0/8`
Description	The range of client IP addresses from which the load balancer should be reachable (if not set, there is no limitations)

Key	haproxy.serviceAnnotations
Value	string
Example	`service.beta.kubernetes.io/aws-load-balancer-backend-protocol: http`
Description	The Kubernetes annotations metadata for the load balancer Service

Key	haproxy.serviceAccountName
Value	string
Example	`percona-xtradb-cluster-operator-workload`
Description	The Kubernetes Service Account for the HAProxy Pod

ProxySQL Section ¶

The proxysql section in the deploy/cr.yaml file contains configuration options for the ProxySQL daemon.

Key	proxysql.enabled
Value	boolean
Example	`false`
Description	Enables or disables load balancing with ProxySQL Services

Key	proxysql.size
Value	int
Example	`1`
Description	The number of the ProxySQL daemons to provide load balancing must be = 1 in current release

Key	proxysql.image
Value	string
Example	`percona/percona-xtradb-cluster-operator:1.6.0-proxysql`
Description	ProxySQL Docker image to use

Key	proxysql.imagePullSecrets.name
Value	string
Example	`private-registry-credentials`
Description	The Kubernetes imagePullSecrets for the ProxySQL image

Key	proxysql.configuration
Value	string
Example
Description	The custom ProxySQL configuration file contents

Key	proxysql.annotations
Value	label
Example	`iam.amazonaws.com/role: role-arn`
Description	The Kubernetes annotations metadata

Key	proxysql.labels
Value	label
Example	`rack: rack-22`
Description	Labels are key-value pairs attached to objects

Key	proxysql.serviceType
Value	string
Example	`ClusterIP`
Description	Specifies the type of Kubernetes Service to be used

Key	proxysql.externalTrafficPolicy
Value	string
Example	`Cluster`
Description	Specifies whether Service should route external traffic to cluster-wide or node-local endpoints (it can influence the load balancing effectiveness)

Key	proxysql.resources.requests.memory
Value	string
Example	`1G`
Description	The Kubernetes memory requests for the main ProxySQL container

Key	proxysql.resources.requests.cpu
Value	string
Example	`600m`
Description	Kubernetes CPU requests for the main ProxySQL container

Key	proxysql.resources.limits.memory
Value	string
Example	`1G`
Description	Kubernetes memory limits for the main ProxySQL container

Key	proxysql.resources.limits.cpu
Value	string
Example	`700m`
Description	Kubernetes CPU limits for the main ProxySQL container

Key	proxysql.sidecarResources.requests.memory
Value	string
Example	`1G`
Description	The Kubernetes memory requests for the sidecar ProxySQL containers

Key	proxysql.sidecarResources.requests.cpu
Value	string
Example	`500m`
Description	Kubernetes CPU requests for the sidecar ProxySQL containers

Key	proxysql.sidecarResources.limits.memory
Value	string
Example	`2G`
Description	Kubernetes memory limits for the sidecar ProxySQL containers

Key	proxysql.sidecarResources.limits.cpu
Value	string
Example	`600m`
Description	Kubernetes CPU limits for the sidecar ProxySQL containers

Key	proxysql.priorityClassName
Value	string
Example	`high-priority`
Description	The Kubernetes Pod Priority class for ProxySQL

Key	proxysql.schedulerName
Value	string
Example	`default-scheduler`
Description	The Kubernetes Scheduler

Key	proxysql.nodeSelector
Value	label
Example	`disktype: ssd`
Description	Kubernetes nodeSelector

Key	proxysql.affinity.topologyKey
Value	string
Example	`kubernetes.io/hostname`
Description	The Operator topology key node anti-affinity constraint

Key	proxysql.affinity.advanced
Value	subdoc
Example
Description	If available it makes a topologyKey node affinity constraint to be ignored

Key	proxysql.tolerations
Value	subdoc
Example	`node.alpha.kubernetes.io/unreachable`
Description	Kubernetes Pod tolerations

Key	proxysql.volumeSpec.emptyDir
Value	string
Example	`{}`
Description	The Kubernetes emptyDir volume The directory created on a node and accessible to the PXC Pod containers

Key	proxysql.volumeSpec.hostPath.path
Value	string
Example	`/data`
Description	Kubernetes hostPath The volume that mounts a directory from the host node’s filesystem into your Pod. The path property is required

Key	proxysql.volumeSpec.hostPath.type
Value	string
Example	`Directory`
Description	The Kubernetes hostPath. An optional property for the hostPath

Key	proxysql.volumeSpec.persistentVolumeClaim.storageClassName
Value	string
Example	`standard`
Description	Set the Kubernetes storage class to use with the PXC PersistentVolumeClaim

Key	proxysql.volumeSpec.persistentVolumeClaim.accessModes
Value	array
Example	`[ReadWriteOnce]`
Description	The Kubernetes PersistentVolumeClaim access modes for the Percona XtraDB cluster

Key	proxysql.volumeSpec.resources.requests.storage
Value	string
Example	`6Gi`
Description	The Kubernetes PersistentVolumeClaim size for the Percona XtraDB cluster

Key	proxysql.podDisruptionBudget.maxUnavailable
Value	int
Example	`1`
Description	The Kubernetes podDisruptionBudget specifies the number of Pods from the set unavailable after the eviction

Key	proxysql.podDisruptionBudget.minAvailable
Value	int
Example	`0`
Description	The Kubernetes podDisruptionBudget Pods that must be available after an eviction

Key	proxysql.gracePeriod
Value	int
Example	`30`
Description	The Kubernetes grace period when terminating a Pod

Key	proxysql.loadBalancerSourceRanges
Value	string
Example	`10.0.0.0/8`
Description	The range of client IP addresses from which the load balancer should be reachable (if not set, there is no limitations)

Key	proxysql.serviceAnnotations
Value	string
Example	`service.beta.kubernetes.io/aws-load-balancer-backend-protocol: http`
Description	The Kubernetes annotations metadata for the load balancer Service

Key	proxysql.serviceAccountName
Value	string
Example	`percona-xtradb-cluster-operator-workload`
Description	The Kubernetes Service Account for the ProxySQL Pod

PMM Section ¶

The pmm section in the deploy/cr.yaml file contains configuration options for Percona Monitoring and Management.

Key	pmm.enabled
Value	boolean
Example	`false`
Description	Enables or disables monitoring Percona XtraDB cluster with PMM

Key	pmm.image
Value	string
Example	`perconalab/pmm-client:1.17.1`
Description	PMM client Docker image to use

Key	pmm.serverHost
Value	string
Example	`monitoring-service`
Description	Address of the PMM Server to collect data from the cluster

Key	pmm.serverUser
Value	string
Example	`pmm`
Description	The PMM Serve_User. The PMM Server password should be configured using Secrets

Key	pmm.resources.requests.memory
Value	string
Example	`200M`
Description	The Kubernetes memory requests for a PMM container

Key	pmm.resources.requests.cpu
Value	string
Example	`500m`
Description	Kubernetes CPU requests for a PMM container

Backup Section ¶

The backup section in the deploy/cr.yaml file contains the following configuration options for the regular Percona XtraDB Cluster backups.

Key	backup.image
Value	string
Example	`percona/percona-xtradb-cluster-operator:1.6.0-backup`
Description	The Percona XtraDB cluster Docker image to use for the backup

Key	backup.imagePullSecrets.name
Value	string
Example	`private-registry-credentials`
Description	The Kubernetes imagePullSecrets for the specified image

Key	backup.storages.<storage-name>.type
Value	string
Example	`s3`
Description	The cloud storage type used for backups. Only `s3` and `filesystem` types are supported

Key	backup.storages.<storage-name>.s3.credentialsSecret
Value	string
Example	`my-cluster-name-backup-s3`
Description	The Kubernetes secret for backups. It should contain `AWS_ACCESS_KEY_ID` and `AWS_SECRET_ACCESS_KEY` keys.

Key	backup.storages.<storage-name>.s3.bucket
Value	string
Example
Description	The Amazon S3 bucket name for backups

Key	backup.storages.s3.<storage-name>.region
Value	string
Example	`us-east-1`
Description	The AWS region to use. Please note this option is mandatory for Amazon and all S3-compatible storages

Key	backup.storages.s3.<storage-name>.endpointUrl
Value	string
Example
Description	The endpoint URL of the S3-compatible storage to be used (not needed for the original Amazon S3 cloud)

Key	backup.storages.<storage-name>.persistentVolumeClaim.type
Value	string
Example	`filesystem`
Description	The persistent volume claim storage type

Key	backup.storages.<storage-name>.persistentVolumeClaim.storageClassName
Value	string
Example	`standard`
Description	Set the Kubernetes Storage Class to use with the PXC backups PersistentVolumeClaims for the `filesystem` storage type

Key	backup.storages.<storage-name>.persistentVolumeClaim.accessModes
Value	array
Example	`[ReadWriteOne]`
Description	The Kubernetes PersistentVolume access modes

Key	backup.storages.<storage-name>.persistentVolumeClaim.storage
Value	string
Example	`6Gi`
Description	Storage size for the PersistentVolume

Key	backup.storages.<storage-name>.annotations
Value	label
Example	`iam.amazonaws.com/role: role-arn`
Description	The Kubernetes annotations

Key	backup.storages.<storage-name>.labels
Value	label
Example	`rack: rack-22`
Description	Labels are key-value pairs attached to objects

Key	backup.storages.<storage-name>.resources.requests.memory
Value	string
Example	`1G`
Description	The Kubernetes memory requests for a PXC container

Key	backup.storages.<storage-name>.resources.requests.cpu
Value	string
Example	`600m`
Description	Kubernetes CPU requests for a PXC container

Key	backup.storages.<storage-name>.resources.limits.memory
Value	string
Example	`1G`
Description	Kubernetes memory limits for a PXC container

Key	backup.storages.<storage-name>.nodeSelector
Value	label
Example	`disktype: ssd`
Description	Kubernetes nodeSelector

Key	backup.storages.<storage-name>.affinity.nodeAffinity
Value	subdoc
Example
Description	The Operator node affinity constraint

Key	backup.storages.<storage-name>.tolerations
Value	subdoc
Example	`backupWorker`
Description	Kubernetes Pod tolerations

Key	backup.storages.<storage-name>.priorityClassName
Value	string
Example	`high-priority`
Description	The Kubernetes Pod priority class

Key	backup.storages.<storage-name>.schedulerName
Value	string
Example	`default-scheduler`
Description	The Kubernetes Scheduler

Key	backup.storages.<storage-name>.containerSecurityContext
Value	subdoc
Example	`privileged: true`
Description	A custom Kubernetes Security Context for a Container to be used instead of the default one

Key	backup.storages.<storage-name>.podSecurityContext
Value	subdoc
Example	`fsGroup: 1001` `supplementalGroups: [1001, 1002, 1003]`
Description	A custom Kubernetes Security Context for a Pod to be used instead of the default one

Key	backup.schedule.name
Value	string
Example	`sat-night-backup`
Description	The backup name

Key	backup.schedule.schedule
Value	string
Example	`0 0 * * 6`
Description	Scheduled time to make a backup specified in the crontab format

Key	backup.schedule.keep
Value	int
Example	`3`
Description	Number of stored backups

Key	backup.schedule.storageName
Value	string
Example	`s3-us-west`
Description	The name of the storage for the backups configured in the `storages` or `fs-pvc` subsection

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Custom Resource options

Custom Resource options ¶

Upgrade Options Section ¶

PXC Section ¶

HAProxy Section ¶

ProxySQL Section ¶

PMM Section ¶

Backup Section ¶

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