HashiCorp Consul

Detailed information on the HashiCorp Consul state store component

Component format

To setup Hashicorp Consul state store create a component of type state.consul. See this guide on how to create and apply a state store configuration.

apiVersion: dapr.io/v1alpha1
kind: Component
metadata:
  name: <NAME>
  namespace: <NAMESPACE>
spec:
  type: state.consul
  version: v1
  metadata:
  - name: datacenter
    value: <REPLACE-WITH-DATA-CENTER> # Required. Example: dc1
  - name: httpAddr
    value: <REPLACE-WITH-CONSUL-HTTP-ADDRESS> # Required. Example: "consul.default.svc.cluster.local:8500"
  - name: aclToken
    value: <REPLACE-WITH-ACL-TOKEN> # Optional. default: ""
  - name: scheme
    value: <REPLACE-WITH-SCHEME> # Optional. default: "http"
  - name: keyPrefixPath
    value: <REPLACE-WITH-TABLE> # Optional. default: ""

Warning

The above example uses secrets as plain strings. It is recommended to use a secret store for the secrets as described here.

Spec metadata fields

Setup HashiCorp Consul

• Self-Hosted
• Kubernetes

You can run Consul locally using Docker:

docker run -d --name=dev-consul -e CONSUL_BIND_INTERFACE=eth0 consul

You can then interact with the server using localhost:8500.

The easiest way to install Consul on Kubernetes is by using the Helm chart:

helm install consul stable/consul

This installs Consul into the default namespace. To interact with Consul, find the service with: kubectl get svc consul.

For example, if installing using the example above, the Consul host address would be:

consul.default.svc.cluster.local:8500

Related links

• Basic schema for a Dapr component
• Read this guide for instructions on configuring state store components
• State management building block

Last modified September 17, 2021 : Merge pull request #1757 from georgestevens99/1440SecretKeyRefExplanation (620a5f8)