Kubernetes resources configuration for ThingsBoard Microservices

This folder containing scripts and Kubernetes resources configurations to run ThingsBoard in Microservices mode.

Prerequisites

ThingsBoard Microservices run on the Kubernetes cluster. You need to have a Kubernetes cluster, and the kubectl command-line tool must be configured to communicate with your cluster. If you do not have a cluster already, you can create one by using Minikube, or you can choose any other available Kubernetes cluster deployment solutions.

Enable ingress addon

By default ingress addon is disabled in the Minikube, and available only in cluster providers. To enable ingress, please execute the following command:

$ minikube addons enable ingress

Installation

Before performing initial installation you can configure the type of database to be used with ThingsBoard and the type of deployment. To set database type change the value of DATABASE variable in .env file to one of the following:

• postgres - use PostgreSQL database;
• hybrid - use PostgreSQL for entities database and Cassandra for timeseries database;

NOTE: According to the database type corresponding kubernetes resources will be deployed (see postgres.yml, cassandra.yml for details).

To set deployment type change the value of DEPLOYMENT_TYPE variable in .env file to one of the following:

• basic - startup with a single instance of Zookeeper, Kafka and Redis;
• high-availability - startup with Zookeeper, Kafka, and Redis in cluster modes;

NOTE: According to the deployment type corresponding kubernetes resources will be deployed (see the content of the directories ./basic and ./high-availability for details).

Execute the following command to run the installation:

$ ./k8s-install-tb.sh --loadDemo

Where:

• --loadDemo - optional argument. Whether to load additional demo data.

Running

Execute the following command to deploy third-party resources:

$ ./k8s-deploy-thirdparty.sh

Type 'yes' when prompted, if you are running ThingsBoard in high-availability DEPLOYMENT_TYPE for the first time and don't have configured Redis cluster.

Execute the following command to deploy resources:

$ ./k8s-deploy-resources.sh

After a while when all resources will be successfully started you can open http://{your-cluster-ip} in your browser (for ex. http://192.168.99.101). You should see the ThingsBoard login page.

Use the following default credentials:

• System Administrator: sysadmin@thingsboard.org / sysadmin

If you installed DataBase with demo data (using --loadDemo flag) you can also use the following credentials:

• Tenant Administrator: tenant@thingsboard.org / tenant
• Customer User: customer@thingsboard.org / customer

In case of any issues, you can examine service logs for errors. For example to see ThingsBoard node logs execute the following commands:

1) Get the list of the running tb-node pods:

$ kubectl get pods -l app=tb-node

2) Fetch logs of the tb-node pod:

$ kubectl logs -f [tb-node-pod-name]

Where:

• tb-node-pod-name - tb-node pod name obtained from the list of the running tb-node pods.

Or use kubectl get pods to see the state of all the pods. Or use kubectl get services to see the state of all the services. Or use kubectl get deployments to see the state of all the deployments. See kubectl Cheat Sheet command reference for details.

Execute the following command to delete all ThingsBoard microservices:

$ ./k8s-delete-resources.sh

Execute the following command to delete all third-party microservices:

$ ./k8s-delete-thirdparty.sh

Execute the following command to delete all resources (including database):

$ ./k8s-delete-all.sh

Upgrading

In case when database upgrade is needed, execute the following commands:

$ ./k8s-delete-resources.sh
$ ./k8s-upgrade-tb.sh --fromVersion=[FROM_VERSION]
$ ./k8s-deploy-resources.sh

Where:

• FROM_VERSION - from which version upgrade should be started. See Upgrade Instructions for valid fromVersion values.