# Pomerium using Helm

This quick-start will show you how to deploy Pomerium with Helm (opens new window) on Kubernetes (opens new window).

# Prerequisites

TIP

This configuration installs Redis as the data broker service. While this isn't strictly required when running Pomerium by itself, it is necessary for Pomerium Enterprise, and still highly recommended if not.

# Certificates

This setup uses mkcert (opens new window) to generate certificates that are trusted by your local web browser for testing, and cert-manager to manage them. If you already have a certificate solution, you can skip the steps below and move on to the next stage.

# Install mkcert

After installing mkcert (opens new window), confirm the presence and names of your local CA files:

mkcert -install
The local CA is already installed in the system trust store! πŸ‘
The local CA is already installed in the Firefox and/or Chrome/Chromium trust store! πŸ‘

ls "$(mkcert -CAROOT)"
rootCA-key.pem  rootCA.pem

The output of mkcert -install may vary depending on your operating system.

# Install and Configure cert-manager

If you haven't already, install cert-manager and create a CA issuer. You can follow their docs (listed below) or use the steps provided:

  1. Create a namespace for cert-manager:

    kubectl create namespace cert-manager
    
  2. Add the jetstack.io repository and update Helm:

    helm repo add jetstack https://charts.jetstack.io
    helm repo update
    
  3. Install cert-manager to your cluster:

    helm install cert-manager jetstack/cert-manager --namespace cert-manager --create-namespace \
    --version v1.4.0 --set installCRDs=true
    
  4. Confirm deployment with kubectl get pods --namespace cert-manager:

    kubectl get pods --namespace cert-manager
    NAME                                       READY   STATUS    RESTARTS   AGE
    cert-manager-5d7f97b46d-8g942              1/1     Running   0          33s
    cert-manager-cainjector-69d885bf55-6x5v2   1/1     Running   0          33s
    cert-manager-webhook-8d7495f4-s5s6p        1/1     Running   0          33s
    
  5. In your Pomerium namespace, create a Kubernetes secret for the rootCA-key file in your local CA root:

    kubectl create secret tls pomerium-tls-ca --namespace=pomerium \
    --cert=$(mkcert -CAROOT)/rootCA.pem --key=$(mkcert -CAROOT)/rootCA-key.pem
    
  6. Define an Issuer configuration in issuer.yaml:

    apiVersion: cert-manager.io/v1
    kind: Issuer
    metadata:
      name: pomerium-issuer
      namespace: pomerium
    spec:
      ca:
        secretName: pomerium-tls-ca
    
  7. Apply and confirm:

    kubectl apply -f issuer.yaml
    issuer.cert-manager.io/pomerium-issuer created
    
    kubectl get issuers.cert-manager.io --namespace pomerium
    NAME              READY   AGE
    pomerium-issuer   True    10s
    

# Install Pomerium

  1. Set your kubectl context to the Pomerium namespace:

    kubectl config set-context --current --namespace=pomerium
    
  2. Create certificate configurations for Pomerium. Our example is named pomerium-certificates.yaml, to differentiate from a configuration file for Pomerium Enterprise, if you choose to install it later:

    apiVersion: cert-manager.io/v1
    kind: Certificate
    metadata:
      name: pomerium-cert
      namespace: pomerium
    spec:
      secretName: pomerium-tls
      issuerRef:
        name: pomerium-issuer
        kind: Issuer
      usages:
        - server auth
        - client auth
      dnsNames:
        - pomerium-proxy.pomerium.svc.cluster.local
        - pomerium-authorize.pomerium.svc.cluster.local
        - pomerium-databroker.pomerium.svc.cluster.local
        - pomerium-authenticate.pomerium.svc.cluster.local
        # TODO - Replace the following entry with your domain space.
        - "*.localhost.pomerium.io" # Quotes are required to escape the wildcard
    ---
    apiVersion: cert-manager.io/v1
    kind: Certificate
    metadata:
      name: pomerium-redis-cert
      namespace: pomerium
    spec:
      secretName: pomerium-redis-tls
      issuerRef:
        name: pomerium-issuer
        kind: Issuer
      dnsNames:
        - pomerium-redis-master.pomerium.svc.cluster.local
        - pomerium-redis-headless.pomerium.svc.cluster.local
        - pomerium-redis-replicas.pomerium.svc.cluster.local
    

    TIP

    If you already have a domain space for Pomerium with a certificate solution, use it in place of *.localhost.pomerium.io.

  3. Apply the certificate configuration, and confirm:

    kubectl apply -f pomerium-certificates.yaml
    
    kubectl get certificate
    NAME                    READY   SECRET                 AGE
    pomerium-cert           True    pomerium-tls           10s
    pomerium-redis-cert     True    pomerium-redis-tls     10s
    
  4. Create a values file for Helm to use when installing Pomerium. Our example is named pomerium-values.yaml.

    authenticate:
      existingTLSSecret: pomerium-tls
      idp:
        provider: "google"
        clientID: YOUR_CLIENT_ID
        clientSecret: YOUR_SECRET
        serviceAccount: YOUR_SERVICE_ACCOUNT
      proxied: false
    
    proxy:
      existingTLSSecret: pomerium-tls
      service:
        type: LoadBalancer
    
    databroker:
      existingTLSSecret: pomerium-tls
      storage:
        connectionString: rediss://pomerium-redis-master.pomerium.svc.cluster.local
        type: redis
        clientTLS:
          existingSecretName: pomerium-tls
          existingCASecretKey: ca.crt
    
    authorize:
      existingTLSSecret: pomerium-tls
    
    redis:
      enabled: true
      auth:
        enabled: false
      usePassword: false
      generateTLS: false
      tls:
        certificateSecret: pomerium-redis-tls
    
    ingress:
      enabled: false
    
    config:
      sharedSecret: YOURSHAREDSECRET # You can use "head -c32 /dev/urandom | base64" to generate.
      cookieSecret: YOURCOOKIESECRET # You can use "head -c32 /dev/urandom | base64" to generate.
      rootDomain: localhost.pomerium.io
      existingCASecret: pomerium-tls
      generateTLS: false # On by default, disabled when cert-manager or another solution is in place.
      policy:
          # This will be our testing app, to confirm that Pomerium is authenticating and routing traffic.
        - from: https://hello.localhost.pomerium.io
          to: http://nginx.pomerium.svc.cluster.local:80
          allowed_domains:
            - companydomain.com # Use the domain your company email address uses.
        - from: https://authenticate.localhost.pomerium.io
          to: https://pomerium-authenticate.pomerium.svc.cluster.local
          preserve_host_header: true
          allow_public_unauthenticated_access: true
    

    TIP

    The options required in the authenticate.idp block will vary depending on your identity provider.

    If you changed the *.localhost.pomerium.io value in pomerium-certificates.yaml update config.rootDomain to match, omitting the *.

  5. Add Pomerium's Helm repo:

    helm repo add pomerium https://helm.pomerium.io
    
  6. So that we can create a valid test route, add Bitnami's Helm repo to pull nginx from:

    helm repo add bitnami https://charts.bitnami.com/bitnami
    
  7. Update Helm:

    helm repo update
    
  8. Install nginx to the cluster:

    helm upgrade --install nginx bitnami/nginx --set service.type=ClusterIP
    
  9. Install Pomerium to the cluster:

    helm upgrade --install pomerium pomerium/pomerium --values ./pomerium-values.yaml
    

If you are installing Pomerium with a valid domain name and certificates, update your DNS records to point to the external IP address of the pomerium-proxy service:

kubectl get svc pomerium-proxy
NAME             TYPE           CLUSTER-IP       EXTERNAL-IP      PORT(S)                        AGE
pomerium-proxy   LoadBalancer   10.128.117.25    192.0.2.20       443:30006/TCP,9090:30707/TCP   2m37s

For development and testing, you can use kubectl to create a local proxy:

sudo -E kubectl --namespace pomerium port-forward service/pomerium-proxy 443:443

Open a browser and navigate to hello.localhost.pomerium.com.

You can also navigate to the special pomerium endpoint hello.localhost.pomerium.com/.pomerium/ to see your current user details.

currently logged in user

# Next Steps

Congratulations on installing Pomerium to your Kubernetes cluster! If you're installing Pomerium Enterprise next, see Install Pomerium Enterprise in Helm. If not, check our our guides to install common services behind Pomerium.