Installing Nodes with Kubernetes

Installing Nodes with Kubernetes

This article describes how to install Crosser Nodes on a Kubernetes cluster.


Requirements

Before you start make sure you have the following dependencies ready and working:

  • Helm > 3

Installation

To simplify the setup Crosser provides a Helm chart, which can be installed from our repository with the following command:

Before installing a node you need to update the values.yaml file with credentials to the Crosser Docker registry and for your Crosser Node. This information can be found in Control Center on the Nodes page and the Register Nodes tab (Docker credentials are available in the Advancced options section).

The values.yaml file is divided into a node specific configuration section, and a Kubernetes deployment specific section.

Examples of a typical config files:

# values.yaml (with nodeId and accessKey)

registry:
  host: docker.crosser.io
  username: username
  password: password
node:
  nodeID:  nodeid
  accessKey: accesskey
expose:
  type: clusterIP

# values.yaml (with globalKey registration)
registry:
  host: docker.crosser.io
  username: username
  password: password
node:
  globalKey:
    enabled: true
    registrationKey: your-global-key
To install the Node, run the following command:
helm upgrade --install --create-namespace -n edgenode test crosser-node/node --values values.yaml

Settings

The following table lists the configurable parameters of the chart and their default values.

ParameterDescriptionDefault
imagePullSecretsContainer registry credentials
Copy credentials from Crosser Cloud		{"email":"name@domain.tld","password":"password","registry":"docker.crosser.io","username":"username"}
node.nodeIDCopy nodeID from Crosser Cloud when you create an node""
node.accessKeyCopy accessKey from Crosser Cloud when you create an node""
node.globalKey.enabledSet to true if you want to use globalKey instead of nodeID and accessKeyFALSE
node.globalKey.registrationKeyThe global registration key you, or your administrator, generated in Crosser Cloud""
node.globalKey.registrationNameName you want to give the node (only alphanumerical characters and underscore are allowed in node names) If empty the name "Release.name" from the chart will be used""
node.baseURLURL the node will connect tocloud.crosser.io
node.logLevelLogLevel options are [Information, Debug]Information
node.proxyProxy settings{"enabled":false,"host":"http://username:password@proxy.domain.tld:8080","noproxy":""}
node.image.repositorydocker.crosser.io/crosser/edgenode
node.image.tagOverrides the image tag whose default is the chart appVersion.""
node.persistence.enabled# If true, use a Persistent Volume Claim, If false, use emptyDir #TRUE
node.persistence.resourcePolicySetting it to "keep" to avoid removing PVCs during a helm delete operation. Leaving it empty will delete PVCs after the chart deleted"keep"
node.persistence.persistentVolumeClaim.existingClaimUse the existing PVC which must be created manually before bound, and specify the "subPath" if the PVC is shared with other components""
node.persistence.persistentVolumeClaim.subPath
""
node.persistence.persistentVolumeClaim.storageClassSpecify the "storageClass" used to provision the volume. Or the default StorageClass will be used(the default). Set it to "-" to disable dynamic provisioning""
node.persistence.persistentVolumeClaim.accessMode
ReadWriteOnce
node.persistence.persistentVolumeClaim.size10Gi
node.serviceAccountNameSet the service account to be used, default if left empty""
node.resourcesDefine resources requests and limits for single Pods.
Ref: https://kubernetes.io/docs/user-guide/compute-resources/		{}
node.securityContextSecurityContext holds pod-level security attributes and common container settings. This defaults to non root user with uid 1000 and gid 1000. *v1.PodSecurityContext false
Ref: https://kubernetes.io/docs/tasks/configure-pod-container/security-context/		{}
node.nodeSelectorDefine which Nodes the Pods are scheduled on.
Ref: https://kubernetes.io/docs/user-guide/node-selection/		{}
node.tolerationsIf specified, the pod's tolerations.
Ref: https://kubernetes.io/docs/concepts/configuration/taint-and-toleration/		[]
node.affinityAssign custom affinity rules
Ref: https://kubernetes.io/docs/concepts/configuration/assign-pod-node/		{}
node.podAnnotationsAdditional deployment annotations{}
expose.typeSet the way how to expose the service. Set the type as "ClusterIP", "NodePort" or "LoadBalancer" and fill the information in the corresponding sectionClusterIP
expose.clusterIP.annotationsAnnotations on the ClusterIP service{}
expose.clusterIP.ports.httpPortThe service port the Node listens on when serving with HTTP/HTTPS9090
expose.clusterIP.ports.mqttPortThe service port the Node listens on when serving with MQTT1883
expose.clusterIP.ports.apiPortThe service port the Node API listens on9191
expose.nodePort.ports.httpServer.portThe service port the Node listens on when serving with HTTP/HTTPS9090
expose.nodePort.ports.httpServer.nodePortThe node port the Node listens on when serving with HTTP/HTTPS30002
expose.nodePort.ports.mqttServer.portThe service port the Node listens on when serving with MQTT1883
expose.nodePort.ports.mqttServer.nodePortThe node port the Node listens on when serving with MQTT30003
expose.nodePort.ports.apiServer.portThe service port the Node API listens on9191
expose.nodePort.ports.apiServer.nodePortThe node port the Node API listens on30004
expose.loadBalancer.IPSet the IP if the LoadBalancer supports assigning IP""
expose.loadBalancer.ports.httpPortThe service port the Node listens on when serving with HTTP/HTTPS9090
expose.loadBalancer.ports.mqttPortThe service port the Node listens on when serving with MQTT1883
expose.loadBalancer.ports.apiPortThe service port the Node API listens on9191
expose.loadBalancer.annotations{}
expose.loadBalancer.sourceRanges[]
expose.ingress.enabledIngress will only be installed when type is "ClusterIP" HTTP/HTTPS is only supported in this versionFALSE
expose.ingress.hostcrossernode.domain.tld
expose.ingress.ingressClassnginx
expose.ingress.annotations{}
expose.ingress.tls.enabledFALSE
expose.ingress.tls.certSourceThe source of the tls certificate. Set it as "auto", "secret" or "none" and fill the information in the corresponding section 1) auto: generate the tls certificate automatically 2) secret: read the tls certificate from the specified secret. The tls certificate can be generated manually or by cert manager 3) none: configure no tls certificate for the ingress. If the default tls certificate is configured in the ingress controller, choose this optionauto
expose.ingress.tls.auto.commonNameThe common name used to generate the certificate, it's necessary when the type isn't "ingress"""
expose.ingress.tls.secret.secretNameThe name of secret which contains keys named: "tls.crt" - the certificate "tls.key" - the private key""

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