Simple Pod

As discussed earlier, a Pod is the lowest compute unit and individual object we can work with in Kubernetes. It can be a single container, but often, it will consist of a primary application container and one or more supporting containers.

Below is an example of a simple pod manifest in YAML format. You can see the apiVersion (it must match the existing API group), the kind (the type of object to create), the metadata (at least a name), and its spec (what to create and parameters), which define the container that actually runs in this pod:

apiVersion: v1
kind: Pod
metadata:
    name: firstpod
spec:
    containers:
    - image: nginx
      name: stan

You can use the kubectl create command to create this pod in Kubernetes. Once it is created, you can check its status with kubectl get pods. The output is omitted to save space:

$ kubectl create -f simple.yaml

$ kubectl get pods

$ kubectl get pod firstpod -o yaml

$ kubectl get pod firstpod -o json