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\uD83D\uDCD8 Instructions

1. Put secrets to the vault and enable to read them via policy “hivemq”These instructions assume that the secrets in the vault are in the following structure:

   Code Block
   language text
   hivemq-poc1 └── opt └── hivemq ├── conf │   ├── key.passphrase │   ├── keystore.password │   ├── keystore_base64 │   ├── truststore.password │   └── truststore_base64 └── license └── license_base64

   
   To achieve such a structure in the Hashicorp Vault at a kv-2 path, and enable hivemq to read from the path, the following commands in the Hashicorp Vault are used:

   Code Block
   language bash
   # Enable Vault to store key-value pairs at path hivemq-poc1 vault secrets enable -path=hivemq-poc1 kv-v2 # Create vault secrets from files cd /tmp vault kv put hivemq-poc1/opt/hivemq/conf/hivemq.jks.b64 mydata keystore_base64="$(base64 </tmp/hivemqbroker-keystore.jks)" \ keystore.password=changeme keystorekey.passphrase=changeme vault kv put hivemq-poc1/opt/hivemq/conf/hivemqtruststore.jks.b64 mydata truststore_base64="$(base64 </tmp/hivemqtruststorebroker-truststore.jks)" vault kv put hivemq-poc1/opt/hivemq/license/hivemq.lic.b64 "mydata= license_base64="$(base64 </tmp/hivemqhivemq4.lic)" # Enable hivemq to read from paths vault policy write hivemq - <<EOF path "hivemq-poc1/data/opt/hivemq/license" { capabilities = ["read"] } path "hivemq-poc1/data/opt/hivemq/conf" { capabilities = ["read"] } EOF

   If your secrets in the vault are stored differently, you must adopt the consul-template.hcl accordingly.

2. Create the HCL template to fetch and decode the secrets: View filenameconsul-template-sidecar.hcla config map with the Consul Template script which will get secrets from the vault and decode them to normal files:
   consul-template.yaml

   Code Block
   language yaml
   apiVersion: v1 kind: ConfigMap metadata: name: consul-template namespace: hivemq data: consul-template.hcl: | template { contents = "{{ with secret (printf \"%s/opt/hivemq/license\" (mustEnv \"TARGET_ENV\")) }}{{ base64Decode .Data.data.license_base64 }}{{ end }}" destination = "/opt/hivemq/license/hivemq4.lic" } template { contents = "{{ with secret (printf \"%s/opt/hivemq/conf\" (mustEnv \"TARGET_ENV\")) }}{{ base64Decode .Data.data.keystore_base64 }}{{ end }}" destination = "/opt/hivemq/keystore/broker-keystore.jks" } template { contents = "{{ with secret (printf \"%s/opt/hivemq/conf\" (mustEnv \"TARGET_ENV\")) }}{{ base64Decode .Data.data.truststore_base64 }}{{ end }}" destination = "/opt/hivemq/keystore/broker-truststore.jks" }

   Code Block
   language bash
   kubectl apply -f consul-template-sidecar.hclyaml --namespace hivemq

3. Add init container to the hivemq-platform values.yaml

   Code Block
   language yaml
   AadditionalInitContainersadditionalInitContainers: - name: init-consul-template image: hashicorp/consul-template:latest command: [ "consul-template", "-once", "-config", "/consul-template/consul-template-sidecar.hcl" ] env: - name: CONSUL_TEMPLATE_LOG_LEVEL, "-kill-signal", "SIGTERM", "-log-level", "debug" ] valueenv: DEBUG - name: VAULT_ADDR value: http://vault.vault.svc.cluster.local:8200 - name: VAULT_TOKEN value: root - name: TARGET_ENV value: hivemq-poc1/data volumeMounts: - name: consul-template mountPath: /consul-template - name: hivemq-license mountPath: /opt/hivemq/license - name: hivemq-keystore mountPath: /opt/hivemq/consulkeystore

4. Add the additional container to the hivemq-platform values.yaml:

   Code Block
   language yaml
   additionalContainers: - name: sidecar-consul-template image: hashicorp/consul-template:latest command: [ '/bin/sh', '-c' ] args: - | trap 'echo "Terminating container"; exit 0' SIGTERM consul-template -config /consul-template/consul-template-sidecar.hcl -kill-signal SIGTERM -log-level debug" & while true; do sleep 1; done env: - name: CONSUL_TEMPLATE_LOG_LEVEL value: DEBUG - name: VAULT_ADDR value: http://vault.vault.svc.cluster.local:8200 - name: VAULT_TOKEN value: root - name: TARGET_ENV value: hivemq-poc1/data volumeMounts: # Volume consul-template to read the consul-template.hcl from - name: consul-template mountPath: /consul-template # Volume hivemq-license to store the decoded license - name: hivemq-license mountPath: /opt/hivemq/license # Volume hivemq-keystore to store the keystore and truststore - name: hivemq-keystore mountPath: /opt/hivemq/consulkeystore

5. Add additional volumes to the hivemq-platform values.yaml:

   Code Block
   language yaml
   additionalVolumes: # Volume hivemq-license to store the decoded license - name: hivemq-license path: /opt/hivemq/license type: emptyDir containerName: hivemq # Volume hivemq-keystore to store the keystore and truststore - type: emptyDir name: hivemq-keystore containerName: hivemq path: /tls-hivemqpokeystoreopt/hivemq/keystore # Volume consul-template with consul-template.hcl file - type: configMap name: consul-template containerName: sidecar-consul-template path: /consul-template

6. Install HiveMQ Platform Operator

   Code Block
   language bash
   helm upgrade op --install hivemq/hivemq-platform-operator --set logLevel=DEBUG

7. Install HiveMQ Platform broker

   Code Block
   language bash
   helm upgrade broker --install hivemq/hivemq-platform --values values-hivemq-platform.yaml

...

• Helm v3.15.4

• Kubernetes v1.29.7

• Kubectl v1.29.2

• Kubernetes provider: AKS 2xStandard_A8_v2 Kubernetes v1.29.7

• HiveMQ 4.31.0 (Helm chart: hivemq/hivemq-platform-0.2.21)

• HiveMQ Platform Operator 1.5.1 (Helm chart: hivemq-platform-operator-0.2.9)

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