# Druid

## Overview

This guide outlines the configuration steps for adding Apache Druid as a resource in StrongDM.

When the resource is added, StrongDM proxies client connections through a [node](https://docs.strongdm.com/admin/networking) (gateway, relay, or proxy cluster). This enables centralized access control, credential management, and audit logging.

Use this guide to complete all necessary preparations to add this resource to your StrongDM environment; input the correct properties in the Admin UI, CLI, SDKs, or Terraform provider; and test for a successful connection.

For general information about how to add a database as a resource in StrongDM, see our main guide, [Add a Datasource](https://docs.strongdm.com/admin/resources/datasources).

## Supported Versions and Clients

StrongDM supports Apache Druid deployments with access via the Druid Broker HTTP endpoint (typically port 8082). Many commonly used tooling and clients for querying Druid are supported, including:

* HTTP APIs (for example, REST queries, analytics over HTTP)
* SQL over Druid using tools like DBeaver, Metabase, and Grafana
* Application libraries leveraging Druid’s HTTP/SQL interfaces

## Prerequisites

To add your resource in StrongDM, you need to meet several technical and configuration prerequisites. Please ensure that the following requirements are met.

In StrongDM, you must have the following:

* Administrator permission level
* At least one operational StrongDM node (gateway, relay, or proxy cluster) that can reach the Druid Broker endpoint
* If using secrets management tools for storing your database credentials, a Secret Store configured in StrongDM

{% hint style="info" %}
To verify that the resource is accessible by the node, log in to the gateway or relay and use Netcat: `nc -zv <HOSTNAME> <PORT>` (in this example, `nc -zv testdb-01.fancy.org 3306`). If your gateway server can connect to this hostname, proceed.

Netcat is a tool for checking various hostnames and ports by either sending data (a ping) or checking for listeners on the ports. The command in the aforementioned example use "-z" to check for listeners without sending data and "-v" to show verbose output. If you don't have Netcat, you can install the Netcat package with whatever package manager you are using, such as "apt-get install netcat".
{% endhint %}

#### On the Druid side, you must have the following:

* Running Druid Broker service, which handles queries and must be accessible to StrongDM nodes
* SQL or Query API endpoints enabled on the Broker (`/druid/v2` for JSON queries and `/druid/v2/sql` for SQL queries)
* Network rules (firewalls, VPC security groups, NACLs, and so forth) that allow inbound access from your StrongDM node’s IP or subnet to the Broker’s hostname and port
* If authentication is enabled:
  * Valid Druid user account with query privileges
  * If using TLS, properly configured certificates and CA trust for your environment
  * Healthy Druid cluster with Brokers, Historical, and Coordinator services online to serve queries successfully

## Resource Setup

Your DocumentDB database should be set up for IAM role authentication prior to using StrongDM to connect to it. This is typically done through attaching an IAM role to an EC2 instance and then adding a user to the DocumentDB database that uses that role.

See the [AWS DocumentDB IAM Guide](https://docs.aws.amazon.com/documentdb/latest/developerguide/iam-identity-auth.html) for more details.

## Resource Management in StrongDM

After all prerequisites and prep work is done, you are ready to add the resource to StrongDM. This section provides instructions for adding the resource in either the StrongDM Admin UI, CLI, Terraform provider, or SDKs.

{% tabs %}
{% tab title="Admin UI" %}
**Set up and Manage With the Admin UI**

If using the Admin UI to add Druid as a resource to StrongDM, use the following steps.

1. Log in to the StrongDM Admin UI.
2. Go to **Resources** > **Managed Resources**.
3. Click **Add Resource**.
4. For **Resource Type**, select **Druid**.
5. Complete all required [configuration properties](#configuration-properties) for your selected datasource type.
6. Click **Create** to save the resource.
7. Click the resource name to view status, diagnostic information, and setting details.
   {% endtab %}

{% tab title="CLI" %}
**Set up and Manage With the CLI**

This section provides an example of how to add the resource using the StrongDM CLI. For more information and examples, please see the [CLI Reference](https://app.gitbook.com/s/4XOJmXFslCMVCzIG2rKp/cli) documentation.

```
# Add Druid datasource
sdm admin datasources add druid druid-prod
  --hostname="druid-broker.example.org"
  --port=8082
  --bind-interface="127.0.0.1"
  --egress-filter="tag:environment=prod"
  --proxy-cluster-id="n-1a2b345c67890123"
  --secret-store-id="se-e1b2"
  --subdomain="druid-prod"
  --tags="env=production,team=analytics"
```

{% endtab %}

{% tab title="Terraform" %}
**Set up and Manage With Terraform**

This section provides an example of how to configure and manage the resource using the Terraform provider. For more information and examples, please see the [Terraform provider](https://github.com/strongdm/terraform-provider-sdm) documentation.

```
# Install StrongDM provider
terraform {
  required_providers {
    sdm = {
      source  = "strongdm/sdm"
      version = "16.5.0"
    }
  }
}

# Configure StrongDM provider
provider "sdm" {
  # Add API access key and secret key from Admin UI
  api_access_key = "njjSn...5hM"
  api_secret_key = "ziG...="
}

# Create Druid resource
resource "sdm_druid" "druid_prod" {
  name             = "druid-prod"
  hostname         = "druid-broker.example.org"
  port             = 8082

  bind_interface   = "127.0.0.1"
  egress_filter    = "tag:environment=prod"
  proxy_cluster_id = "n-1a2b345c67890123"

  secret_store_id  = "se-e1b2"
  subdomain        = "druid-prod"
  tags = {
    env  = "production"
    team = "analytics"
  }
}
```

{% endtab %}

{% tab title="SDKs" %}
**Set up and manage with SDKs**

In addition to the Admin UI, CLI, and Terraform, you may configure and manage your resource with any of the following SDK options: Go, Java, Python, and Ruby. Please see the following references for more information and examples.

| Language      | Reference                                                                | GitHub                                                                 | Examples                                                                        |
| ------------- | ------------------------------------------------------------------------ | ---------------------------------------------------------------------- | ------------------------------------------------------------------------------- |
| Go            | [pkg.go.dev](https://pkg.go.dev/github.com/strongdm/strongdm-sdk-go/v16) | [strongdm-sdk-go](https://github.com/strongdm/strongdm-sdk-go)         | [Go SDK Examples](https://github.com/strongdm/strongdm-sdk-go-examples)         |
| Java          | [javadoc](https://strongdm.github.io/strongdm-sdk-java-docs/)            | [strongdm-sdk-java](https://github.com/strongdm/strongdm-sdk-java)     | [Java SDK Examples](https://github.com/strongdm/strongdm-sdk-java-examples)     |
| Python        | [pdocs](https://strongdm.github.io/strongdm-sdk-python-docs/)            | [strongdm-sdk-python](https://github.com/strongdm/strongdm-sdk-python) | [Python SDK Examples](https://github.com/strongdm/strongdm-sdk-python-examples) |
| Ruby          | [RubyDoc](https://www.rubydoc.info/gems/strongdm)                        | [strongdm-sdk-ruby](https://github.com/strongdm/strongdm-sdk-ruby)     | [Ruby SDK Examples](https://github.com/strongdm/strongdm-sdk-ruby-examples)     |
| {% endtab %}  |                                                                          |                                                                        |                                                                                 |
| {% endtabs %} |                                                                          |                                                                        |                                                                                 |

## **Configuration Properties**

The following configuration properties are required to define a Druid datasource in StrongDM. These settings control how StrongDM connects to the database, authenticates the connection, and optionally uses encryption or secret management. Each property must be correctly configured to ensure connectivity and access enforcement through StrongDM.

| Property              | Requirement | Description                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  |
| --------------------- | ----------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| **Display Name**      | Required    | Meaningful name to display the resource throughout StrongDM; exclude special characters like quotes (") or angle brackets (< or >)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |
| **Resource Type**     | Required    | **Druid**                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    |
| **Proxy Cluster**     | Required    | Defaults to "None (use gateways)"; if using [proxy clusters](https://docs.strongdm.com/admin/networking/proxy-clusters), select the appropriate cluster to proxy traffic to this resource                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    |
| **Hostname**          | Required    | Hostname for your database resource; [must be accessible](#prerequisites) to a gateway or relay                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              |
| **Port**              | Required    | Port to use when connecting to your resource; default port value is **8082**                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |
| **Connectivity Mode** | Required    | Select either **Virtual Networking Mode**, which lets users connect to the resource with a software-defined, IP-based network; or **Loopback Mode**, which allows users to connect to the resource using the local loopback adapter in their operating system; this field is shown if [Virtual Networking Mode](https://docs.strongdm.com/admin/clients/client-networking/virtual-networking-mode) enabled for your organization                                                                                                                                                                                                                                                                                                                                                             |
| **IP Address**        | Optional    | If **Virtual Networking Mode** is the selected connectivity mode, an IP address value in the configured Virtual Networking Mode subnet in the organization network settings; if **Loopback Mode** is the selected connectivity mode, an IP address value in the configured Loopback IP range in the organization network settings (by default, `127.0.0.1`); if not specified, an available IP address in the configured IP address space for the selected connectivity mode will be automatically assigned; this field is shown if [Virtual Networking Mode](https://docs.strongdm.com/admin/clients/client-networking/virtual-networking-mode) and/or [multi-loopback mode](https://docs.strongdm.com/admin/clients/client-networking/loopback-ip-ranges) is enabled for your organization |
| **Port Override**     | Optional    | If **Virtual Networking Mode** is the selected connectivity mode, a port value between 1 and 65535 that is not already in use by another resource with the same IP address; if **Loopback Mode** is the selected connectivity mode, a port value between 1024 to 64999 that is not already in use by another resource with the same IP address; when left empty with Virtual Networking Mode, the system assigns the default port to this resource; when left empty for Loopback Mode, an available port that is not already in use by another resource is assigned; preferred port also can be modified later from the [Port Overrides settings](https://docs.strongdm.com/admin/resources/port-overrides)                                                                                  |
| **DNS**               | Optional    | If Virtual Networking Mode is the selected connectivity mode, a unique hostname alias for this resource; when set, causes the desktop app to display this resource's human-readable DNS name (for example, `k8s.my-organization-name`) instead of the bind address that includes IP address and port (for example, `100.64.100.100:5432`)                                                                                                                                                                                                                                                                                                                                                                                                                                                    |
| **Secret Store**      | Optional    | Credential store location; defaults to none (credentials are stored in StrongDM resource configuration); learn more about [Secret Store](#secret-store-options) options                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |
| **Username**          | Required    | Username to utilize when connecting to this datasource; displays when Secret Store integration is not configured for your organization or when StrongDM serves as the secret store                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |
| **Password**          | Required    | Password for the user connecting to this datasource; displays when Secret Store integration is not configured for your organization or when StrongDM serves as the secret store                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              |
| **Username (path)**   | Required    | Path to the secret in your Secret Store location (for example, `path/to/credential?key=optionalKeyName` where key argument is optional); required when using a non-StrongDM Secret Store type                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
| **Password (path)**   | Required    | Path to the secret in your Secret Store location (for example, `path/to/credential?key=optionalKeyName` where key argument is optional); required when using a non-StrongDM Secret Store type                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
| **Resource Tags**     | Optional    | Datasource [Tags](https://app.gitbook.com/s/4XOJmXFslCMVCzIG2rKp/cli/tags "mention") consisting of key-value pairs `<KEY>=<VALUE>` (for example, `env=dev`)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  |

### Secret Store options

By default, datasource credentials are stored in StrongDM. However, these credentials can also be saved in a secrets management tool.

Non-StrongDM options appear in the **Secret Store** dropdown if they are created under **Network** > **Secret Stores**. When you select another Secret Store type, its unique properties display. For more details, see [Configure Secret Store Integrations](https://docs.strongdm.com/admin/access/secret-stores).

### Resource status

After a resource is created, the Admin UI displays that resource as unhealthy until the healthchecks run successfully. When the resource is ready, the **Health** icon indicates a positive, green status.

When the resource does not display a positive status, click the resource name to go to the **Diagnostics** tab and check for errors.

## Test the Connection

After you have added your resource in StrongDM, follow these steps to verify that it’s working correctly.

1. Assign yourself access by ensuring that your user or role has access to the resource. In the StrongDM Admin UI, go to **Access** > **Roles**, and verify that the resource is attached to a role you’re in.
2. In the CLI, run `sdm status` to list the available datasources. Ensure that the resource appears in your list of accessible datasources.
3. Start a session to the resource, as in the following example:

   ```bash
   sdm connect druid-prod
   ```
4. Connect using HTTP or a SQL client.\
   HTTP example:

   ```
   curl -s "http://localhost:<PORT>/druid/v2?queryType=... "
   ```

   \
   For SQL over HTTP, use the generated connection endpoint, `localhost:<PORT>`, in your tool’s connection settings.
5. In the StrongDM Admin UI, check **Logs > Queries** (and **Logs > Connections**) to confirm the session and queries are captured.

When these steps succeed, you’re ready to connect to your resource through StrongDM.

### Help

If you encounter issues, please consult the [StrongDM Help Center](https://help.strongdm.com/hc/en-us).

Be prepared to provide the following information to StrongDM Support, so that they can inspect logs and confirm node and resource health:

* Resource name or ID
* CLI error output or logs
* Node name and region


---

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```
GET https://docs.strongdm.com/admin/resources/datasources/druid.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

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