Deploy Vault Radar Agent

The HCP Vault Radar agent allows you to scan on-premises data sources for secrets that are not accessible by the cloud scanner, and enable correlation between secrets found by Vault Radar that are store in Vault Enterprise.

Prerequisites

• Access to HCP with an account that can create admin level service principals

• Vault Radar CLI installed

• The agent requires the following environment variables to run and connect to HCP:

  • HCP_CLIENT_ID
  • HCP_CLIENT_SECRET
  • HCP_PROJECT_ID
  • HCP_RADAR_AGENT_POOL_ID

Create a service principal

Project-level service principals interact with resources within a specific project in an organization. By default, they can only access resources in the same project. However, you can assign roles to service principals projects beyond their original scope.

1. Create a project level service principal with the admin role assigned.

2. Generate a key for the service principal.

3. Export an environment variable for the client ID and client secret.

   $ export HCP_CLIENT_ID=actual-client-id HCP_CLIENT_SECRET=actual-client-secret
   

Create an agent pool in the HCP Portal

An agent pool is a group of agents that share the same HCP_RADAR_AGENT_POOL_ID, enabling higher throughput by horizontal scaling the number of agents.

1. Navigate to the HCP Portal navigate to HCP Vault Radar.

2. Click Settings.

3. Click Agent.

4. Click Add an agent pool and follow the prompts to create a new agent pool.

   The final page displays the required configuration information. You can retrieve this information later from the Agent section of the settings page.

5. From the Connect the agent page, copy the commands to create environment variables for the pool ID and project ID.

   Example:

   $ export HCP_RADAR_AGENT_POOL_ID=actual-pool-id
   export HCP_PROJECT_ID=actual-project-id
   

Configure secret values

For most data sources the agent is going to need credentials to authenticate with the data source itself. When configuring your data source on HCP, you may be prompted to define a credential needed for the integration to work.

$ env://ENV_VARIABLE_NAME

If you are configuring a GitHub data source, you are going to need to generate a GitHub PAT for the Agent. Save the value of that PAT local to the Agent as an environment variable. If you saved the environment variable as VAULT_RADAR_GIT_TOKEN then the URI for that variable entered on HCP should be env://VAULT_RADAR_GIT_TOKEN.

Additional configuration

The agent will respect configurations set by an .hashicorp/vault-radar/ignore.yaml. See:

• Custom ignore rules

Connect a data source

You can set up a data source and manage it from the Vault Radar module in the HCP Portal.

1. Click Settings.

2. Click Data Sources.

3. Click Add data source.

4. Select agent scan.

5. Select the type of data source you want to set up. Provide the information prompted by the data source's form.

---
apiVersion: v1
kind: Namespace
metadata:
  name: vault-radar
  labels:
    app: vault-radar-agent

---
apiVersion: v1
kind: ServiceAccount
metadata:
  name: vault-radar-agent
  namespace: vault-radar
  labels:
    app: vault-radar-agent

---
# Note: This cluster role binding is only required if you are using the Kubernetes auth method for Vault indexing feature.
# It is needed for Vault to be able to review the Kubernetes service account token and authenticate the Agent.
# See https://developer.hashicorp.com/vault/docs/auth/kubernetes#configuring-kubernetes

# apiVersion: rbac.authorization.k8s.io/v1
# kind: ClusterRoleBinding
# metadata:
#   name: vault-radar-agent
# roleRef:
#   apiGroup: rbac.authorization.k8s.io
#   kind: ClusterRole
#   name: system:auth-delegator
# subjects:
#   - kind: ServiceAccount
#     name: vault-radar-agent
#     namespace: vault-radar

---
apiVersion: v1
kind: Secret
metadata:
  name: vault-radar-secrets
  namespace: vault-radar
  labels:
    app: vault-radar-agent
type: Opaque
data:
  HCP_CLIENT_SECRET: <Base64 Encoded HCP_CLIENT_SECRET>
  VAULT_RADAR_GIT_TOKEN: <Base64 Encoded VAULT_RADAR_GIT_TOKEN>
  
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: vault-radar-agent
  namespace: vault-radar
  labels:
    app: vault-radar-agent
spec:
  replicas: 2
  selector:
    matchLabels:
      app: vault-radar-agent
  template:
    metadata:
      labels:
        app: vault-radar-agent
    spec:
      serviceAccountName: vault-radar-agent
      automountServiceAccountToken: true
      containers:
        - name: vault-radar-agent
          image: docker.io/hashicorp/vault-radar:latest
          command: ["vault-radar"]
          args: ["agent", "exec"]
          imagePullPolicy: Always
          tty: true
          resources:
            limits:
              cpu: 1000m
              memory: 1024Mi
            requests:
              cpu: 100m
              memory: 512Mi
          env:
            - name: HCP_PROJECT_ID
              value: <HCP_PROJECT_ID>
            - name: HCP_RADAR_AGENT_POOL_ID
              value: <HCP_RADAR_AGENT_POOL_ID>
            - name: HCP_CLIENT_ID
              value: <HCP_CLIENT_ID>
            - name: HCP_CLIENT_SECRET
              valueFrom:
                secretKeyRef:
                  name: vault-radar-secrets
                  key: HCP_CLIENT_SECRET
            - name: VAULT_RADAR_GIT_TOKEN
              valueFrom:
                secretKeyRef:
                  name: vault-radar-secrets
                  key: VAULT_RADAR_GIT_TOKEN

$ kubectl logs <pod name> -f

$ export HCP_PROJECT_ID=<HCP_PROJECT_ID>
$ export HCP_CLIENT_ID=<HCP_CLIENT_ID>
$ export HCP_CLIENT_SECRET=<HCP_CLIENT_SECRET>
$ export HCP_RADAR_AGENT_POOL_ID=<HCP_RADAR_AGENT_POOL_ID>

$ vault-radar agent exec