Aerospike Helm Chart

This is an implementation of Aerospike StatefulSet found here:

• https://github.com/aerospike/aerospike-kubernetes

Pre Requisites

• Kubernetes 1.9+
• PV support on underlying infrastructure (only if you are provisioning persistent volume).
• Requires at least v2.5.0 version of helm to support

StatefulSet Details

• https://kubernetes.io/docs/concepts/workloads/controllers/statefulset/

StatefulSet Caveats

• https://kubernetes.io/docs/concepts/workloads/controllers/statefulset/#limitations

Chart Details

This chart will do the following:

• Implement a dynamically scalable Aerospike cluster using Kubernetes StatefulSets

Installing the Chart

To install the chart with the release name my-aerospike using a dedicated namespace(recommended):

helm repo add incubator http://storage.googleapis.com/kubernetes-charts-incubator
helm install --name my-aerospike --namespace aerospike stable/aerospike

The chart can be customized using the following configurable parameters:

Parameter	Description	Default
image.repository	Aerospike Container image name	aerospike/aerospike-server
image.tag	Aerospike Container image tag	4.5.0.5
image.pullPolicy	Aerospike Container pull policy	Always
image.pullSecret	Aerospike Pod pull secret	``
replicaCount	Aerospike Brokers	1
command	Custom command (Docker Entrypoint)	[]
args	Custom args (Docker Cmd)	[]
labels	Map of labels to add to the statefulset	{}
annotations	Map of annotations to add to the statefulset	{}
tolerations	List of node taints to tolerate	[]
persistentVolume	Config of persistent volumes for storage-engine	{}
confFile	Config filename. This file should be included in the chart path. If the config is updated, the statefulset will be redeployed with the new config	aerospike.conf
resources	Resource requests and limits	{}
nodeSelector	Labels for pod assignment	{}
terminationGracePeriodSeconds	Wait time before forcefully terminating container	30
service.type	Kubernetes Service type	ClusterIP
service.annotations	Kubernetes service annotations, evaluated as a template	{}
service.loadBalancerIP	Static IP Address to use for LoadBalancer service type	nil
service.clusterIP	Static clusterIP or None for headless services	None
service.nodePort.enabled	Enable NodePort to make aerospike cluster available outside the Kubernetes cluster	false
service.nodePort.port	The NodePort port to expose	{}
metrics.enabled	Enabled the metric sidecar that scrapes Aerospike at localhost:3000. Needs to be provided a sidecar image/repo. This is a good place to start: https://github.com/alicebob/asprom	false
metrics.image.repository	Metric sidecar image repository	{}
metrics.image.tag	Metric sidecar image tag	{}
metrics.serviceMonitor.enabled	Enable metrics service monitor. For more info, check Prometheus Operator	false
metrics.serviceMonitor.targetLabels	Add these additional labels from your service to the service monitor. For more info, check Prometheus Operator	{}

Specify parameters using --set key=value[,key=value] argument to helm install

Alternatively a YAML file that specifies the values for the parameters can be provided like this:

helm install --name my-aerospike -f values.yaml stable/aerospike

Conf files for Aerospike

There is one conf file added to each Aerospike release. This conf file can be replaced with a custom file and updating the confFile value.

If you modify the aerospike.conf (and you use more than 1 replica), you want to add the #REPLACE_THIS_LINE_WITH_MESH_CONFIG comment to the config file (see the default conf file). This will update your mesh to connect each replica.