Getting started

A running Kubernetes cluster is required.

Serverful

Istio should be installed in your cluster.

• kubectl apply -R -f ./k8s/serverful
• export NAMESPACE="lise-serverful" RELEASE_NAME="mercury" NODE_IP="192.168.1.221" GATEWAY_NODE_PORT=31380
• helm init --service-account tiller --history-max 200 --tiller-namespace $NAMESPACE
• kubectl label namespace $NAMESPACE istio-injection=enabled
• helm charts/lise-serverful --tiller-namespace $NAMESPACE --namespace $NAMESPACE --name $RELEASE_NAME --dep-up

Then you can test the release by running the following command:

curl -v -d '{"name":"usb key", "quantity":3, "unitPrice": 5}' \
  -H "Content-Type: application/json" \
  -X POST "http://$NODE_IP:$GATEWAY_NODE_PORT/orders"

Serverless

OpenFaas should be installed in your cluster.

• kubectl apply -R -f ./k8s/serverless
• export NODE_IP="192.168.1.221" GATEWAY_NODE_PORT=31112 OF_NAMESPACE=openfaas RELEASE=mercury
• helm init --tiller-namespace $OF_NAMESPACE --service-account tiller
• helm install ./charts/lise-serverless --dep-up --name $RELEASE --namespace $OF_NAMESPACE --tiller-namespace $OF_NAMESPACE
• faas-cli up -f ./src/serverless/stack.yaml

You can test the release by running the following command:

helm test $RELEASE --tiller-namespace $OF_NAMESPACE --cleanup --parallel

You can also test the functions:

curl -v -d '{"name":"usb key", "quantity":3, "unitPrice": 5}' \
  -H "Content-Type: application/json" \
  -X POST "http://$NODE_IP:$GATEWAY_NODE_PORT/function/order"

You can see the two functions been triggered on the gateway ui: http://$NODE_IP:$GATEWAY_NODE_PORT/ui

The payment function has been triggered by a message sended at the kafka topic orders by the order function.

Todo

• Setup Helm authentication context
• Setup TLS

Serverful

• Circuit Breaking
• Fault Injection
• Security Policies (rate limit...)
• Autoscaling
• Metrics, logs, tracing visualization

Serverless

• Monitoring: set up Prometheus and Grafana
• Logging: set up Loki with OpenFaas
• CRUD example

Commands reminder

• Enable automatic sidecar injections: kubectl label namespace $NAMESPACE istio-injection=enabled
• Deploy without a sidecar: ... spec.template.metadata.annotations."sidecar\.istio\.io/inject"="false"
• Read Kafka messages: /opt/bitnami/kafka/bin/kafka-console-consumer.sh --bootstrap-server localhost:9092 --topic $TOPIC --from-beginning in the kafka pod