open-consul/website/content/docs/k8s/deployment-configurations/vault/data-integration/enterprise-license.mdx

---
layout: docs
page_title: Storing the Enterprise License in Vault
description: >-
  Configuring the Consul Helm chart to use an enterprise license stored in Vault.
---

# Storing the Enterprise License in Vault

This topic describes how to configure the Consul Helm chart to use an enterprise license stored in Vault.
## Overview
Complete the steps outlined in the [Data Integration](/docs/k8s/deployment-configurations/vault/data-integration) section to use an enterprise license stored in Vault.

Complete the following steps once:
  1. Store the secret in Vault.
  1. Create a Vault policy that authorizes the desired level of access to the secret.

Repeat the following steps for each datacenter in the cluster:
  1. Create Vault Kubernetes auth roles that link the policy to each Consul on Kubernetes service account that requires access.
  1. Update the Consul on Kubernetes helm chart.

## Prerequisites
Prior to setting up the data integration between Vault and Consul on Kubernetes, you will need to have:  
1. Read and completed the steps in the [Systems Integration](/docs/k8s/deployment-configurations/vault/systems-integration) section of [Vault as a Secrets Backend](/docs/k8s/deployment-configurations/vault).
2. Read the [Data Integration Overview](/docs/k8s/deployment-configurations/vault/data-integration) section of [Vault as a Secrets Backend](/docs/k8s/deployment-configurations/vault).

## Store the Secret in Vault

First, store the enterprise license in Vault:

```shell-session
$ vault kv put secret/consul/license key="<enterprise license>"
```

## Create Vault policy

Next, you will need to create a policy that allows read access to this secret.

The path to the secret referenced in the `path` resource is the same value that you will configure in the  `global.enterpriseLicense.secretName` Helm configuration (refer to [Update Consul on Kubernetes Helm chart](#update-consul-on-kubernetes-helm-chart)).

<CodeBlockConfig filename="license-policy.hcl">

```HCL
path "secret/data/consul/license" {
  capabilities = ["read"]
}
```

</CodeBlockConfig>

Apply the Vault policy by issuing the `vault policy write` CLI command:

```shell-session
$ vault policy write license-policy license-policy.hcl
```

## Create Vault Authorization Roles for Consul

Next, you will create Kubernetes auth roles for the Consul server and client:

```shell-session
$ vault write auth/kubernetes/role/consul-server \
    bound_service_account_names=<Consul server service account> \
    bound_service_account_namespaces=<Consul installation namespace> \
    policies=license-policy \
    ttl=1h
```

```shell-session
$ vault write auth/kubernetes/role/consul-client \
    bound_service_account_names=<Consul client service account> \
    bound_service_account_namespaces=<Consul installation namespace> \
    policies=license-policy \
    ttl=1h
```

To find out the service account names of the Consul server and client,
you can run the following `helm template` commands with your Consul on Kubernetes values file:

- Generate Consul server service account name
  ```shell-session
  $ helm template --release-name ${RELEASE_NAME} -s templates/server-serviceaccount.yaml hashicorp/consul -f values.yaml
  ```

- Generate Consul client service account name
  ```shell-session
  $ helm template --release-name ${RELEASE_NAME} -s templates/client-serviceaccount.yaml hashicorp/consul -f values.yaml
  ```

## Update Consul on Kubernetes Helm chart.

Now that you have configured Vault, you can configure the Consul Helm chart to
use the enterprise enterprise license in Vault:

<CodeBlockConfig filename="values.yaml">

```yaml
global:
  image: hashicorp/consul-enterprise:1.12.0-ent
  secretsBackend:
    vault:
      enabled: true
      consulServerRole: consul-server
      consulClientRole: consul-client
  enterpriseLicense:
    secretName: secret/data/consul/enterpriselicense
    secretKey: key
```

</CodeBlockConfig>

Note that `global.enterpriseLicense.secretName` is the path of the secret in Vault.
This should be the same path as the one you included in your Vault policy.
`global.enterpriseLicense.secretKey` is the key inside the secret data. This should be the same
as the key you passed when creating the enterprise license secret in Vault.