Page Comparison

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• Kubernetes

• Hivemq license

Install Postgress

1. Code Block
   language bash
   kubectl ns create <namespace name>

2. Code Block
   language bash
   kubectl ns <namespace name created by you in step 1>

   helm repo add bitnami

3. Code Block
   language bash
   helm repo add bitnami https://charts.bitnami.com/bitnami

4. create postgres_values.yaml to deploy postgresPostgres

   1. Code Block
      language yaml
      global: storageClass: "rook-ceph-block" postgresql: postgresqlDatabase: "esedb" postgresqlUsername: "postgres" postgresqlPassword: "password" image: registry: docker.io repository: bitnami/postgresql tag: 11.13.0-debian-10-r40 debug: true postgresqlConfiguration: hugePages: "off" listenAddresses: "*" resources: limits: hugepages-2Mi: 500Mi requests: memory: 256Mi cpu: 250m extraVolumeMounts: - mountPath: /hugepages-2Mi name: hugepage-2mi extraVolumes: - name: hugepage-2mi emptyDir: medium: HugePages-2M networkPolicy: enabled: true

5. Code Block
   language bash
   helm install postgres -f postgres_values.yaml bitnami/postgresql

6. kubectl get pods (check the status of the pod it should be running)

   1. if the error is observed then check the pod logs

7. connect Postgres pod using the following command to verify connectionthe connectio

   1. Code Block
      psql --host 127.0.0.1 -U postgres -d postgres -p 5432

   2. execute \l to list down the databases

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1. Create configmap for hivemq license

   1. Code Block
      language bash
      kubectl create configmap hivemq-license --from-file=hivemq-2021.lic

2. Create configmap for ESE configuration(make sure you use database name, username and password you have configured during postgres Postgres installation)

   1. Code Block
      language bash
      kubectl create configmap enterprise-security-extension-config --from-file=enterprise-security-extension.xml

3. Create hivemq_values.yaml for deploying hivemq using Kubernetes operator

4. Make sure to add configuration to have ESE extension is preinstalled refer here for full config values of the operator preinstalled. 

   1. Full values of operator can be found herehttps://github.com/hivemq/helm-charts/blob/master/charts/hivemq-operator/values.yaml

   2. example hivemq_values.yaml

      1. Code Block
         language yaml
         hivemq: cpu: 8 extensions: - enabled: true extensionUri: preinstalled initialization: | # A little hack because k8s configMaps can't handle sub-directories [[ -e /conf-override/extensions/hivemq-enterprise-security-extension/enterprise-security-extension.xml ]] && rm -f $(pwd)/conf/enterprise-security-extension.xml && rm -f $(pwd)/enterprise-security-extension.xml && cp -s /conf-override/extensions/hivemq-enterprise-security-extension/enterprise-security-extension.xml $(pwd)/conf/enterprise-security-extension.xml [[ ! -f drivers/postgres-jdbc.jar ]] && curl -L https://jdbc.postgresql.org/download/postgresql-42.2.14.jar --output drivers/jdbc/postgres.jar name: hivemq-enterprise-security-extension configMap: enterprise-security-extension-config image: hivemq/hivemq4:k8s-4.7.1 imagePullPolicy: Always memory: 8Gi nodeCount: "2" ports: - expose: true name: mqtt patch: - '[{"op":"add","path":"/spec/type","value":"LoadBalancer"}]' port: 1883 - expose: true name: cc patch: - '[{"op":"add","path":"/spec/sessionAffinity","value":"ClientIP"}]' port: 8080 configMaps: - name: hivemq-license path: /opt/hivemq/license operator: admissionWebhooks: enabled: false

5. Deploy hivemq cluster using the following command

   Code Block

   a.

   helm upgrade --install -f hivemq_values.yaml <release name> hivemq/hivemq-operator

6. Check the pods status

   Kubectl get

   1. Code Block
      language bash
      kubectl get pods

7. check the logs of hivemq pods if deployment is complete without any error

8. now connect to posgres Postgres pod and create required use, roles and permissions data

9. using mqtt CLI perform quick tests

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