Thales Luna integration in Kubernetes

ENTERPRISE

The Thales Luna HSM sidecar container enables integrating the application container to a network attached Thales Luna. The following covers how to set up the integration in Kubernetes.

For more general information on the HSM integration with PKCS#11, see HSM Integration.

Prerequisites

Before using this container, you need the following:

• Luna7 net-HSM with fully configured secured network access. The EJBCA deployment will be configured with:

  • The IP address/hostname of the HSM

  • server.pem certificate

• Administrative access on the HSM for registering a client and assigning partitions to the client

• P11 Proxy must have network access to the HSM service (security groups, network ACLs, etc)

• An existing key pair credential for the client, i.e. the HSM driver container, to communicate with the HSM.

HSM driver container deployment parameters

The following lists parameters for the HSM sidecar container.

Environment variables

The following environment variables configure the HSM sidecar container.

Volume mounts

All volume mount parameters are mandatory and should only be configured in the HSM sidecar container.

Prepare HSM configuration

The following assumes that the server certificate and client credentials are already available.

Configure the server certificate and client credentials:

• Create a Kubernetes secret with the client private key to communicate with HSM.

  • It is recommended to keep the file name in secret as dockerlunaclientKey.pem . Otherwise adjust the values.yaml in next section.

  • The namespace may need to be updated

  • The name of the secret needs also to be reflected in the values.yaml in next section.

kubectl create secret generic hsm-luna-secret-client-key \
     -n cadeploymentnamespace --from-file=dockerlunaclientKey.pem=dockerlunaclientKey.pem

• Create a Kubernetes ConfigMap to configure the HSM server and the client certificate.

  • The HSM server certificate and client certificate values in the values.yaml may be adjusted in the next section.

The contents of the certificates are truncated in the following example.

apiVersion: v1
kind: ConfigMap
metadata:
  name: hsm-luna-configmap
data:
  server.pem: |
    -----BEGIN CERTIFICATE-----
    MIIDOTCCAiGgAwIBAgIBADANBgkqhkiG9w0BAQsFADBgMQswCQYDVQQGEwJDQTEQ
    .....truncated.....
    OaIJWeLzCzXw4bzKbl5VvfwXmrTyCh0wHgN+E1VOhv8s2HhA3/Mzujb1VhPDCT0Z
    LP1EfFulatVU0dtbQg==
    -----END CERTIFICATE-----
  dockerlunaclient.pem: |
    -----BEGIN CERTIFICATE-----
    MIIDMzCCAhugAwIBAgIBADANBgkqhkiG9w0BAQsFADBdMQswCQYDVQQGEwJDQTEQ
    .....truncated.....
    xP96D2AMJN/9/rPHLHEJqETdYBvZYwdzyqB9GinxwuxlCfkrolx+ETyk16wK63m1
    dABXXPaeLg==
    -----END CERTIFICATE-----

Configure Deployment

The following provides an example of customizing the deployment using Helm. Note that the Helm chart values file values.yaml describes an example test deployment and does not include:

• Database connection.

• Configured imagePullSecrets that may be required.

• TLS connection required after the deployment and creation of the CAs.

Ensure that the deployment is allowed an Egress to the physical HSM.

Make sure to adjust the values for the HSM server environment variable (SERVER_NAME) and any required secrets.

#imagePullSecrets: []
ejbca:
  env:
    TLS_SETUP_ENABLED: "later"
    LOG_AUDIT_TO_DB: true
  # More convenient way to integrate with HSM will be available soon
  # Extra init containers to be added to the deployment
  initContainers:
    - name: hsm-driver-init
      image: registry.primekey.com/primekey/hsm-driver-luna7:10.5.1
      command:
        [
          "sh",
          "-c",
          "cp --preserve --recursive /opt/keyfactor/p11proxy-client/* /mnt/driver/",
        ]
      volumeMounts:
        - name: p11proxy-client
          mountPath: /mnt/driver/
  # Extra sidecar containers to be added to the deployment
  sidecarContainers:
    - name: hsm
      image: registry.primekey.com/primekey/hsm-driver-luna7:10.5.1
      env:
        - name: SERVER_NAME
          value: "192.168.1.25"
      volumeMounts:
        - name: hsm-luna-configmap-servercert
          mountPath: /opt/luna/certs-server/server.pem
          subPath: server.pem
        - name: hsm-luna-configmap-client-cert
          mountPath: /opt/luna/certs-client/dockerlunaclient.pem
          subPath: dockerlunaclient.pem
        - name: hsm-luna-secret-client-key
          mountPath: /opt/luna/certs-client/dockerlunaclientKey.pem
          subPath: dockerlunaclientKey.pem
  # Extra volumes to be added to the deployment
  volumes:
    - name: p11proxy-client
      emptyDir: {}
    - name: hsm-luna-configmap-servercert
      configMap:
        name: hsm-luna-configmap
        items:
          - key: "server.pem"
            path: "server.pem"
    - name: hsm-luna-configmap-client-cert
      configMap:
        name: hsm-luna-configmap
        items:
          - key: "dockerlunaclient.pem"
            path: "dockerlunaclient.pem"
    - name: hsm-luna-secret-client-key
      secret:
        secretName: hsm-luna-secret-client-key
  # Extra volume mounts to be added to the deployment
  volumeMounts:
    - name: p11proxy-client
      mountPath: /opt/keyfactor/p11proxy-client
# needed to make softhsm volume mount to work
podSecurityContext:
  fsGroup: 10001
ingress:
  enabled: true
  className: "nginx"
  annotations:
    nginx.ingress.kubernetes.io/auth-tls-verify-client: "optional_no_ca"
    #nginx.ingress.kubernetes.io/auth-tls-secret: "default/ejbca-ingress-trust-secret"
    nginx.ingress.kubernetes.io/auth-tls-pass-certificate-to-upstream: "true"
    nginx.ingress.kubernetes.io/auth-tls-verify-depth: "1"
  hosts:
    - host: "ejbcaca1.testdomain.se"
      paths:
        - path: /
          pathType: Prefix
  # tls:
  #   - hosts:
  #       - "ejbcaca1.testdomain.se"
  #     secretName: ingress-credential-secret-ca

Create and verify HSM crypto token

To create a crypto token and then test the HSM key, do the following:

1. In the EJBCA menu, click CA Functions > Crypto Tokens.

2. Click Create new and specify the following on the New Crypto Token page:

   • Name: Specify a name for the crypto token.

   • Type: Select PKCS#11 NG.

   • Auto-activation: Select use to allow EJBCA to save the password and reapply it after a restart so that the CA is always available.

   • For PKCS#11 : Reference Type, select Slot/Token Label.

   • For PKCS#11 : Reference, select one of the listed slots available in the HSM.

   • Authentication Code: Enter a password for auto-activation, same as provided for the slot or token in the HSM.

   • Click Save to create the crypto token.

3. Next, you can generate key pairs and any existing key pairs on the HSM are also shown.

4. To verify that the HSM key is operational, click Test.

Advanced deployments

The EJBCA Enterprise configuration export/import tool EJBCA ConfigDump allows you to deploy EJBCA with automation. For information on deploying EJBCA with automation, using a soft HSM integration suitable for testing, see Deploy EJBCA as CA with automation with SoftHSM2.

Thales Luna 7 HSM installations can also be automated using the EJBCA ConfigDump tool. For information on how to configure the tool in Kubernetes, see EJBCA Configdump in Kubernetes.

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