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Simple SPIRE 1.5.1 deployment using PSAT node attestor

This configuration is an example of a simple SPIRE 1.5.1 deployment for Kubernetes that uses PSAT node attestor.

  • The SPIRE server runs as a StatefulSet using a PersistentVolumeClaim.
  • The SPIRE agent runs as a DaemonSet.

Both SPIRE agent and server run in the spire namespace, using service accounts of spire-server and spire-agent. Also RBAC authorization policies are set in order to guarantee access to certain API server resources.

Usage

Configuration

The following flags must be passed to the Kubernetes API server to properly run this PSAT attestor example:

  • service-account-signing-key-file
  • service-account-key-file
  • service-account-issuer
  • service-account-api-audiences

If you are using minikube, make sure it is started as follows:

minikube start  --driver=virtualbox \
                --extra-config=apiserver.authorization-mode=Node,RBAC \
                --extra-config=apiserver.service-account-signing-key-file=/var/lib/minikube/certs/sa.key \
                --extra-config=apiserver.service-account-key-file=/var/lib/minikube/certs/sa.pub \
                --extra-config=apiserver.service-account-issuer=api \
                --extra-config=apiserver.service-account-api-audiences=api,spire-server

Deployment

Start the server StatefulSet:

$ kubectl apply -f spire-server.yaml

Start the agent DaemonSet:

$ kubectl apply -f spire-agent.yaml

The agent should automatically attest to SPIRE server.