cluster

package
v0.0.0-...-3f85c9d Latest Latest
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 Go to latest Published: Jan 5, 2020 License: Apache-2.0, Apache-2.0 Imports: 24 Imported by: 0

Documentation

Overview

Package cluster holds the cluster CRD logic and definitions A cluster is comprised of a primary service, replica service, primary deployment, and replica deployment

Package cluster holds the cluster CRD logic and definitions A cluster is comprised of a primary service, replica service, primary deployment, and replica deployment

Package cluster holds the cluster CRD logic and definitions A cluster is comprised of a primary service, replica service, primary deployment, and replica deployment

Package cluster holds the cluster CRD logic and definitions A cluster is comprised of a primary service, replica service, primary deployment, and replica deployment

Package cluster holds the cluster CRD logic and definitions A cluster is comprised of a primary service, replica service, primary deployment, and replica deployment

Package cluster holds the cluster CRD logic and definitions A cluster is comprised of a primary service, replica service, primary deployment, and replica deployment

Package cluster holds the cluster CRD logic and definitions A cluster is comprised of a primary service, replica service, primary deployment, and replica deployment

Index

Constants

View Source 
const FAILOVER_EVENT_NOT_READY = "NotReady"
View Source 
const FAILOVER_EVENT_READY = "Ready"
View Source 
const PGBOUNCER_SUFFIX = "-pgbouncer"
View Source 
const PGPOOL_SUFFIX = "-pgpool"
View Source 
const ReplicaSuffix = "-replica"

ReplicaSuffix ...

Variables

This section is empty.

Functions

func AddCluster 

func AddCluster(clientset *kubernetes.Clientset, client *rest.RESTClient, cl *crv1.Pgcluster, namespace string, primaryPVCName string) error

AddCluster ...

func AddClusterBase 

func AddClusterBase(clientset *kubernetes.Clientset, client *rest.RESTClient, cl *crv1.Pgcluster, namespace string)

AddClusterBase ...

func AddPgbouncer 

func AddPgbouncer(clientset *kubernetes.Clientset, restclient *rest.RESTClient, cl *crv1.Pgcluster, namespace string, createService bool, updateCreds bool) error

ProcessPgbouncer ...

func AddPgbouncerFromTask 

func AddPgbouncerFromTask(clientset *kubernetes.Clientset, restclient *rest.RESTClient, task *crv1.Pgtask, namespace string)

func AddPgpool 

func AddPgpool(clientset *kubernetes.Clientset, cl *crv1.Pgcluster, namespace string, createService bool) error

ProcessPgpool ...

func AddPgpoolFromTask 

func AddPgpoolFromTask(clientset *kubernetes.Clientset, restclient *rest.RESTClient, task *crv1.Pgtask, namespace string)

func AddUpgrade 

func AddUpgrade(clientset *kubernetes.Clientset, restclient *rest.RESTClient, upgrade *crv1.Pgtask, namespace string)

AddUpgrade bounces the Deployment with the new image tag

func AutofailBase 

func AutofailBase(clientset *kubernetes.Clientset, restclient *rest.RESTClient, ready bool, clusterName, namespace string)

AutofailBase ...

func CreatePgpoolSecret 

func CreatePgpoolSecret(clientset *kubernetes.Clientset, primary, replica, db, secretName, namespace string) error

CreatePgpoolSecret create a secret used by pgpool

func CreateService 

func CreateService(clientset *kubernetes.Clientset, fields *ServiceTemplateFields, namespace string) error

CreateService ...

func DeleteCluster 

func DeleteCluster(clientset *kubernetes.Clientset, restclient *rest.RESTClient, cl *crv1.Pgcluster, namespace string) error

DeleteCluster ...

func DeleteClusterBase 

func DeleteClusterBase(clientset *kubernetes.Clientset, restclient *rest.RESTClient, cl *crv1.Pgcluster, namespace string)

DeleteClusterBase ...

func DeletePgbouncer 

func DeletePgbouncer(clientset *kubernetes.Clientset, clusterName, namespace string)

DeletePgbouncer

func DeletePgbouncerFromTask 

func DeletePgbouncerFromTask(clientset *kubernetes.Clientset, restclient *rest.RESTClient, task *crv1.Pgtask, namespace string)

func DeletePgpool 

func DeletePgpool(clientset *kubernetes.Clientset, clusterName, namespace string)

DeletePgpool

func DeletePgpoolFromTask 

func DeletePgpoolFromTask(clientset *kubernetes.Clientset, restclient *rest.RESTClient, task *crv1.Pgtask, namespace string)

func DeletePgreplicas 

func DeletePgreplicas(restclient *rest.RESTClient, clusterName, namespace string)

DeletePgreplicas

func DeleteReplica 

func DeleteReplica(clientset *kubernetes.Clientset, cl *crv1.Pgreplica, namespace string) error

DeleteReplica ...

func Failover 

func Failover(clientset *kubernetes.Clientset, client *rest.RESTClient, clusterName string, task *crv1.Pgtask, namespace string, restconfig *rest.Config) error

func FailoverBase 

func FailoverBase(namespace string, clientset *kubernetes.Clientset, client *rest.RESTClient, task *crv1.Pgtask, restconfig *rest.Config)

FailoverBase ...

func InitializeAutoFailover 

func InitializeAutoFailover(clientset *kubernetes.Clientset, restclient *rest.RESTClient, nsList []string) error

at operator startup, check for autofail enabled pods in Not Ready status in each namespace the operator is watching, trigger a failover if found

func ProcessPolicies 

func ProcessPolicies(clientset *kubernetes.Clientset, restclient *rest.RESTClient, stopchan chan struct{}, namespace string)

ProcessPolicies ...

func ReconfigurePgbouncerFromTask 

func ReconfigurePgbouncerFromTask(clientset *kubernetes.Clientset, restclient *rest.RESTClient, task *crv1.Pgtask, namespace string)

func ReconfigurePgpoolFromTask 

func ReconfigurePgpoolFromTask(clientset *kubernetes.Clientset, restclient *rest.RESTClient, task *crv1.Pgtask, namespace string)

func Scale 

func Scale(clientset *kubernetes.Clientset, client *rest.RESTClient, replica *crv1.Pgreplica, namespace, pvcName string, cluster *crv1.Pgcluster) error

Scale ...

func ScaleBase 

func ScaleBase(clientset *kubernetes.Clientset, client *rest.RESTClient, replica *crv1.Pgreplica, namespace string)

ScaleBase ...

func ScaleDownBase 

func ScaleDownBase(clientset *kubernetes.Clientset, client *rest.RESTClient, replica *crv1.Pgreplica, namespace string)

ScaleDownBase ...

func UpdatePgBouncerAuthorizations 

func UpdatePgBouncerAuthorizations(clientset *kubernetes.Clientset, namespace, username, password, secretName, clusterName, podIP string) error

Types

type AutoFailoverTask 

type AutoFailoverTask struct {
}

func (*AutoFailoverTask) AddEvent 

func (*AutoFailoverTask) AddEvent(restclient *rest.RESTClient, clusterName, eventType, namespace string)

func (*AutoFailoverTask) Clear 

func (*AutoFailoverTask) Clear(restclient *rest.RESTClient, clusterName, namespace string)

func (*AutoFailoverTask) Exists 

func (*AutoFailoverTask) Exists(restclient *rest.RESTClient, clusterName, namespace string) bool

func (*AutoFailoverTask) GetEvents 

func (*AutoFailoverTask) GetEvents(restclient *rest.RESTClient, clusterName, namespace string) (string, map[string]string)

func (*AutoFailoverTask) Print 

func (*AutoFailoverTask) Print(restclient *rest.RESTClient, namespace string)

type FailoverEvent 

type FailoverEvent struct {
	EventType string
	EventTime time.Time
}

FailoverEvent holds a record of a NotReady or other event that is used by the failover algorithm, FailoverEvents can build up for a given cluster

type PgbouncerConfFields 

type PgbouncerConfFields struct {
	PG_PRIMARY_SERVICE_NAME string
	PG_REPLICA_SERVICE_NAME string
	PG_USERNAME             string
	PG_PASSWORD             string
	PG_PORT                 string
	PG_DATABASE             string
}

type PgbouncerHBAFields 

type PgbouncerHBAFields struct {
}

type PgbouncerPasswdFields 

type PgbouncerPasswdFields struct {
	Username string
	Password string
}

type PgbouncerTemplateFields 

type PgbouncerTemplateFields struct {
	Name               string
	ClusterName        string
	SecretsName        string
	CCPImagePrefix     string
	CCPImageTag        string
	Port               string
	PrimaryServiceName string
	ReplicaServiceName string
	ContainerResources string
	PgBouncerUser      string
	PgBouncerPass      string
}

type PgpoolConfFields 

type PgpoolConfFields struct {
	PG_PRIMARY_SERVICE_NAME string
	PG_REPLICA_SERVICE_NAME string
	PG_USERNAME             string
	PG_PASSWORD             string
}

type PgpoolHBAFields 

type PgpoolHBAFields struct {
}

type PgpoolPasswdFields 

type PgpoolPasswdFields struct {
	Username string
	Password string
}

type PgpoolTemplateFields 

type PgpoolTemplateFields struct {
	Name               string
	ClusterName        string
	SecretsName        string
	CCPImagePrefix     string
	CCPImageTag        string
	ContainerResources string
	Port               string
	PrimaryServiceName string
	ReplicaServiceName string
}

type ServiceTemplateFields 

type ServiceTemplateFields struct {
	Name        string
	ServiceName string
	ClusterName string
	Port        string
	ServiceType string
}

ServiceTemplateFields ...

type StateMachine 

type StateMachine struct {
	Clientset    *kubernetes.Clientset
	RESTClient   *rest.RESTClient
	Namespace    string
	ClusterName  string
	SleepSeconds int
}

StateMachine holds a state machine that is created when a cluster has received a NotReady event, this is the start The StateMachine is executed in a separate goroutine for any cluster founds to be NotReady

func (*StateMachine) Evaluate 

func (s *StateMachine) Evaluate(status string, events map[string]string) bool

Evaluate returns true if the autofail status is NotReady

func (*StateMachine) Print 

func (s *StateMachine) Print()

func (*StateMachine) Run 

func (s *StateMachine) Run()

Run is the heart of the failover state machine, started when a NotReady event is caught by the cluster watcher process, this statemachine runs until

Source Files

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