Stolon Helm Chart

• Installs Stolon (HA PostgreSQL cluster)
• Based on lwolf/stolon-chart and stolon examples

TL;DR;

$ helm install stable/stolon

Installing the Chart

To install the chart with the release name my-release:

$ helm install --name my-release stable/stolon

Backend

Kubernetes is the default store backend. consul, etcdv2 or etcdv3 can also be used as the store backend.

Configuration

Parameter	Description	Default
clusterName	stolon cluster name	nil
image.repository	stolon image repository	sorintlab/stolon
image.tag	stolon image tag	v0.13.0-pg10
image.pullPolicy	stolon image pull policy	IfNotPresent
image.pullSecrets	stolon image pull secrets as an array	[] (does not add image pull secrets to deployed pods)
etcdImage.repository	etcd image repository	k8s.gcr.io/etcd-amd64
etcdImage.tag	etcd image tag	2.3.7
etcdImage.pullPolicy	etcd image pull policy	IfNotPresent
debug	Debug mode	false
shmVolume.enabled	Enable emptyDir volume for /dev/shm on keepers pods	false
persistence.enabled	Use a PVC to persist data	true
persistence.storageClassName	Storage class name of backing PVC	""
persistence.accessModes	Persistent volumes access modes	["ReadWriteOnce"]
persistence.size	Size of data volume	10Gi
rbac.create	Specifies if RBAC resources should be created	true
serviceAccount.create	Specifies if ServiceAccount should be created	true
serviceAccount.name	Name of the generated ServiceAccount	Defaults to fullname template
superuserSecret.name	Postgres superuser credential secret name	""
superuserSecret.usernameKey	Username key of Postgres superuser in secret	pg_su_username
superuserSecret.passwordKey	Password key of Postgres superuser in secret	pg_su_password
superuserUsername	Postgres superuser username	stolon
superuserPasswordFile	File where to read the Postgres superuser password
superuserPassword	Postgres superuser password	(Required if superuserSecret.name and superuserPasswordFile are not set)
replicationSecret.name	Postgres replication credential secret name	""
replicationSecret.usernameKey	Username key of Postgres replication in secret	pg_repl_username
replicationSecret.passwordKey	Password key of Postgres replication in secret	pg_repl_password
replicationUsername	Replication username	repluser
replicationPasswordFile	File where to read the replication password
replicationPassword	Replication password	(Required if replicationSecret.name and replicationPasswordFile are not set)
store.backend	Store backend (kubernetes/consul/etcd)	kubernetes
store.endpoints	Store backend endpoints	nil
store.kubeResourceKind	Kubernetes resource kind (only for kubernetes)	configmap
pgParameters	postgresql.conf options used during cluster creation	{}
ports	Ports to expose on pods	{"stolon":{"containerPort": 5432},"metrics":{"containerPort": 8080}}
serviceMonitor.enabled	Creates a Prometheus serviceMonitor and service object	false
serviceMonitor.labels	Overrides the default labels added by chart to the ServiceMonitor with labels specified.	{}
serviceMonitor.namespace	Set to use a different value than the release namespace for deploying the ServiceMonitor object	nil
serviceMonitor.interval	Set to use a different value than the default Prometheus scrape interval	nil
serviceMonitor.scrapeTimeout	Set to use a different value than the default Prometheus scrape timeout	nil
job.autoCreateCluster.enabled	Set to false to force-disable auto-cluster-creation which may clear pre-existing postgres db data	true
job.autoCreateCluster.resources	Job autoCreaterCluster containers resources	{}
job.autoCreateCluster.initContainers.resources	Job autoCreaterCluster initContainers resources	{}
job.initdbScripts.enabled	Set to false to force-disable initdb script execution	true
job.initdbScripts.resources	Job initdbScripts containers resources	{}
job.initdbScripts.initContainers.resources	Job autoUpdateClusterSpec initContainers resources	{}
job.autoUpdateClusterSpec.enabled	Set to false to force-disable auto-cluster-spec-update	true
job.autoUpdateClusterSpec.resources	Job autoUpdateClusterSpec containers resources	{}
job.autoUpdateClusterSpec.initContainers.resources	Job autoUpdateClusterSpec initContainers resources	{}
job.annotations	Annotations for Jobs, the value is evaluated as a template.	{}
clusterSpec	Stolon cluster spec reference	{}
tls.enabled	Enable tls support to postgresql	false
tls.rootCa	Ca certificate	""
tls.serverCrt	Server cerfificate	""
tls.serverKey	Server key	""
tls.existingSecret	Existing secret with certificate content to stolon credentials	""
keeper.uid_prefix	Keeper prefix name	keeper
keeper.replicaCount	Number of keeper nodes	2
keeper.resources	Keeper resource requests/limit	{}
keeper.priorityClassName	Keeper priorityClassName	nil
keeper.fsGroup	Keeper securityContext fsGroup, do not set if pg9 or 10	``
keeper.nodeSelector	Node labels for keeper pod assignment	{}
keeper.affinity	Affinity settings for keeper pod assignment	{}
keeper.tolerations	Toleration labels for keeper pod assignment	[]
keeper.volumes	Additional volumes	[]
keeper.volumeMounts	Mount paths for keeper.volumes	[]
keeper.hooks.failKeeper.enabled	Enable failkeeper pre-stop hook	false
keeper.podDisruptionBudget.enabled	If true, create a pod disruption budget for keeper pods.	false
keeper.podDisruptionBudget.minAvailable	Minimum number / percentage of pods that should remain scheduled	""
keeper.podDisruptionBudget.maxUnavailable	Maximum number / percentage of pods that may be made unavailable	""
keeper.extraEnv	Extra environment variables for keeper	[]
proxy.replicaCount	Number of proxy nodes	2
proxy.resources	Proxy resource requests/limit	{}
proxy.priorityClassName	Proxy priorityClassName	nil
proxy.nodeSelector	Node labels for proxy pod assignment	{}
proxy.affinity	Affinity settings for proxy pod assignment	{}
proxy.tolerations	Toleration labels for proxy pod assignment	[]
proxy.podDisruptionBudget.enabled	If true, create a pod disruption budget for proxy pods.	false
proxy.podDisruptionBudget.minAvailable	Minimum number / percentage of pods that should remain scheduled	""
proxy.podDisruptionBudget.maxUnavailable	Maximum number / percentage of pods that may be made unavailable	""
proxy.extraEnv	Extra environment variables for proxy	[]
sentinel.replicaCount	Number of sentinel nodes	2
sentinel.resources	Sentinel resource requests/limit	{}
sentinel.priorityClassName	Sentinel priorityClassName	nil
sentinel.nodeSelector	Node labels for sentinel pod assignment	{}
sentinel.affinity	Affinity settings for sentinel pod assignment	{}
sentinel.tolerations	Toleration labels for sentinel pod assignment	[]
sentinel.podDisruptionBudget.enabled	If true, create a pod disruption budget for sentinel pods.	false
sentinel.podDisruptionBudget.minAvailable	Minimum number / percentage of pods that should remain scheduled	""
sentinel.podDisruptionBudget.maxUnavailable	Maximum number / percentage of pods that may be made unavailable	""
sentinel.extraEnv	Extra environment variables for sentinel	[]
initdbScripts	Dictionary of scripts. Executed after cluster startup	nil
nodePostStartScript	Dictionary of scripts. Executed after the node startup	nil