Dapr Configurations

🟢 Management

Opstella has designed with Dapr to cooperate between its microservices, add configurations of Dapr within opstella-system is required to Opstella to function properly.

Preparation

1. Connect to 🟢 Management Kubernetes Cluster ; i.e w/ Kubeconfig File

   export KUBECONFIG="$HOME/opstella-installation/kubeconfigs/management_cluster.yaml"

2. Prepare 🟢 Management Kubernetes Cluster Information

   Ensure K8S_INTERNAL_DOMAIN is defined as per the Shell Variables guide.

Install Dapr Components CRDs

1. Install Pub/Sub Broker

   Use the Redis that you previously installed Host and Credentials.

   export REDIS_HOST="redis-sentinel-opstella.opstella-system.svc:26379"

   export REDIS_PASSWORD="CHANGEME"

   kubectl apply --namespace opstella-system -f - <<EOF
   apiVersion: dapr.io/v1alpha1
   kind: Component
   spec:
     type: pubsub.redis
     version: v1
     metadata:
       - name: redisHost
         value: ${REDIS_HOST}
       - name: redisSentinelMasterName
         value: redis-opstella
       - name: redisType
         value: sentinel
       - name: enableTLS
         value: 'false'
       - name: redisPassword
         value: ${REDIS_PASSWORD}
   metadata:
     name: pubsub
   EOF

2. Install Statestore Component

   Use the Redis that you previously installed Host and Credentials.

   kubectl apply --namespace opstella-system -f - <<EOF
   apiVersion: dapr.io/v1alpha1
   kind: Component
   spec:
     type: state.redis
     version: v1
     metadata:
       - name: redisHost
         value: ${REDIS_HOST}
       - name: redisSentinelMasterName
         value: redis-opstella
       - name: redisType
         value: sentinel
       - name: keyPrefix
         value: none
       - name: redisPassword
         value: ${REDIS_PASSWORD}
   metadata:
     name: statestore
   EOF

Install Dapr Configurations CRDs

1. Install Resiliency

   kubectl apply --namespace opstella-system -f - <<EOF
   apiVersion: dapr.io/v1alpha1
   kind: Resiliency
   spec:
     policies:
       retries:
         DaprBuiltInServiceRetries:
           policy: constant
           duration: 2s
           maxRetries: 5
         DefaultServiceInvocationRetries:
           policy: constant
           duration: 1s
           maxRetries: 3
         pubsubRetry:
           policy: constant
           duration: 30s
           maxRetries: 10
     targets:
       components:
         pubsub:
           inbound:
             retry: pubsubRetry
   metadata:
     name: resiliency
   EOF

2. Install Kubernetes Name Resolution Configuration

   kubectl apply --namespace opstella-system -f - <<EOF
   apiVersion: dapr.io/v1alpha1
   kind: Configuration
   spec:
     nameResolution:
       version: v1
       component: "kubernetes"
       configuration:
         clusterDomain: ${K8S_INTERNAL_DOMAIN}
   metadata:
     name: config
   EOF