Tectonic on AWS with Terraform - PART II

Deploying a simple application on AWS Tectonic Cluster

We have created Tectonic cluster and accessed it with kubectl command in Part I
Now we will try to deploy a simple application on this cluster.

Deployments: Run multiple copies of a container across multiple nodes
Services: Endpoint that load balances traffic to containers run by a deployment

Copy the following YAML into a file named simple-deployment.yaml. apiVersion: extensions/v1beta1 kind: Deployment metadata: name: simple-deployment namespace: default labels: k8s-app: simple spec: replicas: 3 template: metadata: labels: k8s-app: simple spec: containers: - name: nginx image: quay.io/coreos/example-app:v1.0 ports: - name: http containerPort: 80 The parameter replicas: 3, will create 3 running copies.
Image: quay.io/coreos/example-app:v1.0 defines the container image to run, hosted on Quay.io.

Then, copy the following YAML into a file named simple-service.yaml.

kind: Service apiVersion: v1 metadata: name: simple-service namespace: default spec: selector: k8s-app: simple ports: - protocol: TCP port: 80 type: LoadBalancer
$ kubectl create -f simple-deployment.yaml
$ kubectl get deployments
$ kubectl create -f simple-service.yaml
$ kubectl get services -o wide

Get the EXTERNAL-IP URL and access the Application. The application will be up in few minutes.