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StreamPipes k8s - The Operator's Dream

StreamPipes k8s is a helm chart to deploy StreamPipes on Kubernetes.

Current version: 0.95.0-SNAPSHOT

We provide two helm chart templates to get you going:

  • default: a lightweight template with few pipeline elements, needs less memory
  • full: contains more pipeline elements, requires >16 GB RAM (recommended)

Prerequisite

Requires Helm (https://helm.sh/) and an active connection to a kubernetes cluster with a running tiller server.

Tested with:

  • K8s v1.19.3
  • Helm v3.1.2
  • Minikube v1.15.1 (recommended for local testing)

NOTE: We experienced some problems with using host path volumes in Docker Desktop environments for persistent storage. Therefore, we suggest to use minikube for local testing.

Local testing

We recommend using minikube for local testing. Follow instructions in their docs to setup test environment

Once installed, start local minikube node with a mapped host volume:

minikube start --mount-string ${HOME}/streampipes-k8s:/streampipes-k8s --mount --memory=4g --cpus=4

Start the a helm chart template by running the following command from the root of this folder:

NOTE: Starting might take a while since we also initially pull all Docker images from Dockerhub.

helm install streampipes ./

# full template only recommend if you have sufficient resources
# helm install streampipes ./ --set deployment=full

After a while, all containers should successfully started, indicated by the Running status.

kubectl get pods
NAME                                           READY   STATUS    RESTARTS   AGE
backend-76ddc486c8-nswpc                       1/1     Running   0          3m27s
couchdb-77db98cf7b-xnnvb                       1/1     Running   0          3m27s
influxdb-b95b6479-r8wh8                        1/1     Running   0          3m27s
extensions-all-jvm-79c445dbd9-m8xcs     1/1     Running   0          3m27s
ui-b94bd9766-rm6zb                             2/2     Running   0          3m27s

For minikube users:

NOTE: If you're running Docker Desktop or Minikube with a local k8s cluster, the above step to use your host IP might not work. Luckily, you can port-forward a service port to your localhost using the following command to be able to access the UI either via http://localhost or http://<HOST_IP> (you require sudo to run this command in order to bind to a privileged port).

kubectl port-forward svc/ui --address=0.0.0.0 80:80

Deleting the current helm chart deployment:

helm del streampipes

We retain the created persistent volume. You need to manually delete it:

rm -rf ${HOME}/streampipes-k8s

Parameters

Common parameters

Parameter Name Description Value
deployment Deployment type (lite or full) lite
preferredBroker Preferred broker for deployment "nats"
monitoringSystem Enable monitoring system (true/false) false
pullPolicy Image pull policy "Always"
restartPolicy Restart policy for the container Always
persistentVolumeReclaimPolicy Reclaim policy for persistent volumes "Delete"
persistentVolumeAccessModes Access mode for persistent volumes "ReadWriteOnce"
initialDelaySeconds Initial delay for liveness and readiness probes 60
periodSeconds Interval between liveness and readiness probes 30
failureThreshold Number of consecutive failures for readiness probes 30
hostPath Host path for the application ""

StreamPipes common parameters

Parameter Name Description Value
streampipes.version StreamPipes version "0.95.0-SNAPSHOT"
streampipes.registry StreamPipes registry URL "apachestreampipes"
streampipes.auth.secretName The secret name for storing secrets "sp-secrets"
streampipes.auth.users.admin.user The initial admin user "admin@streampipes.apache.org"
streampipes.auth.users.admin.password The initial admin password (leave empty for autogen) "admin"
streampipes.auth.users.service.user The initial service account user "sp-service-client"
streampipes.auth.users.service.secret The initial service account secret empty (auto-generated)
streampipes.auth.encryption.passcode Passcode for value encryption empty (auto-generated)
streampipes.core.appName StreamPipes backend application name "backend"
streampipes.core.port StreamPipes backend port 8030
streampipes.core.persistence.storageClassName Storage class name for backend PVs "hostpath"
streampipes.core.persistence.storageSize Size of the backend PV "1Gi"
streampipes.core.persistence.claimName Name of the backend PersistentVolumeClaim "backend-pvc"
streampipes.core.persistence.pvName Name of the backend PersistentVolume "backend-pv"
streampipes.core.service.name Name of the backend service "backend"
streampipes.core.service.port TargetPort of the StreamPipes backend service 8030
streampipes.ui.appName StreamPipes UI application name "ui"
streampipes.ui.resolverActive Flag for enabling DNS resolver for Nginx proxy true
streampipes.ui.port StreamPipes UI port 8088
streampipes.ui.resolver DNS resolver for Nginx proxy "kube-dns.kube-system.svc.cluster.local"
streampipes.ui.service.name Name of the UI service "ui"
streampipes.ui.service.type Type of the UI service "ClusterIP"
streampipes.ui.service.nodePort Node port for the UI service 8088
streampipes.ui.service.port TargetPort of the StreamPipes UI service 8088
streampipes.ingress.active Flag for enabling Ingress for StreamPipes false
streampipes.ingress.annotations Annotations for Ingress {}
streampipes.ingress.host Hostname for Ingress ""
streampipes.ingressroute.active Flag for enabling IngressRoute for StreamPipes true
streampipes.ingressroute.annotations Annotations for IngressRoute {}
streampipes.ingressroute.entryPoints Entry points for IngressRoute ["web", "websecure"]
streampipes.ingressroute.host Hostname for IngressRoute ""
streampipes.ingressroute.certResolverActive Flag for enabling certificate resolver for IngressRoute true
streampipes.ingressroute.certResolver Certificate resolver for IngressRoute ""

Extensions common parameters

Parameter Name Description Value
extensions.iiot.appName IIoT extensions application name extensions-all-iiot
extensions.iiot.imageName IIoT extensions image name extensions-all-jvm
extensions.iiot.port Port for the IIoT extensions application 8090
extensions.iiot.service.name Name of the IIoT extensions service extensions-all-iiot
extensions.iiot.service.port TargetPort of the IIoT extensions service 8090

External common parameters

Couchdb common parameters

Parameter Name Description Value
external.couchdb.appName CouchDB application name "couchdb"
external.couchdb.version CouchDB version 3.3.1
external.couchdb.user CouchDB admin username "admin"
external.couchdb.password CouchDB admin password empty (auto-generated)
external.couchdb.port Port for the CouchDB service 5984
external.couchdb.service.name Name of the CouchDB service "couchdb"
external.couchdb.service.port TargetPort of the CouchDB service 5984
external.couchdb.persistence.storageClassName Storage class name for CouchDB PVs "hostpath"
external.couchdb.persistence.storageSize Size of the CouchDB PV "1Gi"
external.couchdb.persistence.claimName Name of the CouchDB PersistentVolumeClaim "couchdb-pvc"
external.couchdb.persistence.pvName Name of the CouchDB PersistentVolume "couchdb-pv"

Influxdb common parameters

Parameter Name Description Value
external.influxdb.appName InfluxDB application name "influxdb"
external.influxdb.version InfluxDB version 2.6
external.influxdb.username InfluxDB admin username "admin"
external.influxdb.password InfluxDB admin password empty (auto-generated)
external.influxdb.adminToken InfluxDB admin token empty (auto-generated)
external.influxdb.initOrg InfluxDB initial organization "sp"
external.influxdb.initBucket InfluxDB initial bucket "sp"
external.influxdb.initMode InfluxDB initialization mode "setup"
external.influxdb.apiPort Port number for the InfluxDB service (API) 8083
external.influxdb.httpPort Port number for the InfluxDB service (HTTP) 8086
external.influxdb.grpcPort Port number for the InfluxDB service (gRPC) 8090
external.influxdb.service.name Name of the InfluxDB service "influxdb"
external.influxdb.service.apiPort TargetPort of the InfluxDB service for API 8083
external.influxdb.service.httpPort TargetPort of the InfluxDB service for HTTP 8086
external.influxdb.service.grpcPort TargetPort of the InfluxDB service for gRPC 8090
external.influxdb.persistence.storageClassName Storage class name for InfluxDB PVs "hostpath"
external.influxdb.persistence.storageSize Size of the InfluxDB PV "1Gi"
external.influxdb.persistence.storageSizeV1 Size of the InfluxDB PV for v1 databases "1Gi"
external.influxdb.persistence.claimName Name of the InfluxDBv2 PersistentVolumeClaim "influxdb2-pvc"
external.influxdb.persistence.claimNameV1 Name of the InfluxDBv1 PersistentVolumeClaim "influxdb-pvc"
external.influxdb.persistence.pvName Name of the InfluxDBv2 PersistentVolume "influxdb2-pv"
external.influxdb.persistence.pvNameV1 Name of the InfluxDBv1 PersistentVolume "influxdb-pv"

Nats common parameters

Parameter Name Description Value
external.nats.appName NATS application name "nats"
external.nats.port Port for the NATS service 4222
external.nats.version NATS version
external.nats.service.type Type of the NATS service "NodePort"
external.nats.service.externalTrafficPolicy External traffic policy for the NATS service "Local"
external.nats.service.name Name of the NATS service "nats"
external.nats.service.port TargetPort of the NATS service 4222

Kafka common parameters

Parameter Name Description Value
external.kafka.appName Kafka application name "kafka"
external.kafka.version Kafka version 2.2.0
external.kafka.port Port for the Kafka service 9092
external.kafka.external.hostname Name which will be advertised to external clients. Clients which use (default) port 9094 "localhost"
external.kafka.service.name Name of the Kafka service "kafka"
external.kafka.service.port TargetPort of the Kafka service 9092
external.kafka.service.portOutside Port for Kafka client outside of the cluster 9094
external.kafka.persistence.storageClassName Storage class name for Kafka PVs "hostpath"
external.kafka.persistence.storageSize Size of the Kafka PV "1Gi"
external.kafka.persistence.claimName Name of the Kafka PersistentVolumeClaim "kafka-pvc"
external.kafka.persistence.pvName Name of the Kafka PersistentVolume "kafka-pv"

|

Zookeeper common parameters

Parameter Name Description Value
external.zookeeper.appName ZooKeeper application name "zookeeper"
external.zookeeper.version ZooKeeper version 3.4.13
external.zookeeper.port Port for the ZooKeeper service 2181
external.zookeeper.service.name Name of the ZooKeeper service "zookeeper"
external.zookeeper.service.port TargetPort of the ZooKeeper service 2181
external.zookeeper.persistence.storageClassName Storage class name for ZooKeeper PVs "hostpath"
external.zookeeper.persistence.storageSize Size of the ZooKeeper PV "1Gi"
external.zookeeper.persistence.claimName Name of the ZooKeeper PersistentVolumeClaim "zookeeper-pvc"
external.zookeeper.persistence.pvName Name of the ZooKeeper PersistentVolume "zookeeper-pv"

Pulsar common parameters

Parameter Name Description Value
external.pulsar.appName pulsar application name "pulsar"
external.pulsar.version pulsar version 3.0.0
external.pulsar.port Port for the pulsar service 6650
external.pulsar.service.name Name of the pulsar service "pulsar"
external.pulsar.service.port TargetPort of the pulsar service 6650
external.pulsar.persistence.storageClassName Storage class name for pulsar PVs "hostpath"
external.pulsar.persistence.storageSize Size of the pulsar PV "1Gi"
external.pulsar.persistence.claimName Name of the pulsar PersistentVolumeClaim "pulsar-pvc"
external.pulsar.persistence.pvName Name of the pulsar PersistentVolume "pulsar-pv"

Monitoring common parameters

Monitoring - Prometheus

Parameter Name Description Value
prometheus.appName Prometheus application name "prometheus"
prometheus.version Prometheus version 2.45.0
prometheus.port Prometheus port 9090
prometheus.service.name Prometheus service name "prometheus"
prometheus.service.port Prometheus service port 9090
prometheus.persistence.storageClassName Prometheus storage class name "hostpath"
prometheus.persistence.storageSize Prometheus storage size "2Gi"
prometheus.persistence.claimName Prometheus PVC claim name "prometheus-pvc"
prometheus.persistence.pvName Prometheus PV name "prometheus-pv"
prometheus.persistence.tokenStorageSize Prometheus token storage size "16Ki"
prometheus.config.scrapeInterval Prometheus scrape interval 10s
prometheus.config.evaluationInterval Prometheus evaluation interval 15s
prometheus.config.backendJobName Prometheus backend job name "backend"
prometheus.config.extensionsName Prometheus extensions job name "extensions-all-iiot"
prometheus.config.tokenFileName Prometheus token file name "token"
prometheus.config.tokenFileDir Prometheus token file directory "/opt/data"

Monitoring - Grafana

Parameter Name Description Value
grafana.appName Grafana application name "grafana"
grafana.version Grafana version 10.1.2
grafana.port Grafana port 3000
grafana.service.name Grafana service name "grafana"
grafana.service.port Grafana service port 3000
grafana.persistence.storageClassName Grafana storage class name "hostpath"
grafana.persistence.storageSize Grafana storage size "1Gi"
grafana.persistence.claimName Grafana PVC claim name "grafana-pvc"
grafana.persistence.pvName Grafana PV name "grafana-pv"

Bugs and Feature Requests

If you've found a bug or have a feature that you'd love to see in StreamPipes, feel free to create an issue on GitHub.

Get help

If you have any problems during the installation or questions around StreamPipes, you'll get help through one of our community channels:

And don't forget to follow us on Twitter!

Contribute

We welcome contributions to StreamPipes. If you are interested in contributing to StreamPipes, let us know! You'll get to know an open-minded and motivated team working together to build the next IIoT analytics toolbox.

Here are some first steps in case you want to contribute:

  • Subscribe to our dev mailing list dev-subscribe@streampipes.apache.org
  • Send an email, tell us about your interests and which parts of StreamPipes you'd like to contribute (e.g., core or UI)!
  • Ask for a mentor who helps you to understand the code base and guides you through the first setup steps
  • Find an issue on GitHub which is tagged with a good first issue tag
  • Have a look at our developer wiki at https://cwiki.apache.org/confluence/display/STREAMPIPES to learn more about StreamPipes development.

Have fun!

Feedback

We'd love to hear your feedback! Subscribe to users@streampipes.apache.org

License

Apache License 2.0