amygao9/kogito-helm-chart

Helm chart for deploying a Kogito application.

Kogito Helm Chart

This is a Helm chart to deploy a Kogito application with Prometheus integration.

Example Usage

By default, this will deploy the basic Kogito travel agency example image which I have uploaded onto Quay.

kubectl create namespace kogito-helm
git clone https://github.com/Kevin-Mok/kogito-helm-chart.git
helm install --namespace kogito-helm travel-agency-basic kogito-helm-chart
export NODE_INTERNAL_IP=$(kubectl get nodes -o jsonpath='{ $.items[0].status.addresses[?(@.type=="InternalIP")].address }')
curl -H "Content-Type: application/json" -H "Accept: application/json" -X POST "http://$NODE_INTERNAL_IP:32000/travels" -d @- << EOF
{
  "traveller" : {
    "firstName" : "John",
    "lastName" : "Doe",
    "email" : "john.doe@example.com",
    "nationality" : "American",
    "address" : {
      "street" : "main street",
      "city" : "Boston",
      "zipCode" : "10005",
      "country" : "US"
    }
  },
  "trip" : {
    "city" : "New York",
    "country" : "US",
    "begin" : "2019-12-10T00:00:00.000+02:00",
    "end" : "2019-12-15T00:00:00.000+02:00"
  }
}
EOF

Customizing Values

To change the image deployed or any of the other default values specified in values.yaml, you can simply create another values file and run helm install with the --values flag and your values file name. For example:

cat << EOF > myvals.yaml
runtime: springboot
image:
  repository: quay.io/kmok/process-springboot-example
EOF
helm install --namespace kogito-helm --values myvals.yaml process-springboot-example kogito-helm-chart

Or in the case like this one where you only have a couple values to change, you can also specify values directly in the command like so:

helm install --namespace kogito-helm --set image.repository=quay.io/kmok/process-springboot-example,runtime=springboot process-springboot-example kogito-helm-chart

Applications Exposed By Default

For ease of use and demonstration purposes, both the Kogito application and Prometheus instance will be exposed with NodePort's by default; they use ports 32000 and 32001 respectively.

Prometheus Integration

Prometheus monitoring is enabled by default. As such, a Prometheus instance will be created upon installation given that the Prometheus operator is installed. If not installed, please see the Prometheus operator README for instructions on installing the operator. Note that their bundle.yaml defaults to installing in the default namespace.

You can access the web console at http://$NODE_INTERNAL_IP:32001/graph following the Example Usage above.

To disable the Prometheus integration, you can set the Values.prometheus.enabled to false.