• Will create a pod and not use the kubectl command.
  • Will create it using a yaml definition file.
  • The yaml file will have the pod specifications inside it.
  • Create pod.yaml.
  • Start with the 4 root level properties.
    • apiVersion
    • kind
    • metadata
    • spec
  • We set the apiVersion as v1
  • kind is set as Pod
  • metadata is a dictionary.
    • Define the name of the pod (in this case nginx)
    • Additional labels can be specified.
      • labels is also a dictionary.
        • Can specify a label that is a key value pair, in this case app: nginx
        • Can add additional labels such as tier and set it to frontend
          • The tier label allows the pod to be grouped.
  • Next, the spec must also be defined and this is a dictionary.
    • spec contains an object called containers.
  • It is recommended not to use tabs in yaml files and just add two spaces for all of the children objects. Something like the below. 
    metadata:
name: nginx
  • A container is a list of objects.
  • We give the container a name and this is the name of the container in the pod.
  • Of course, multiple containers can be included. ``` spec: containers:
    • name: nginx image: nginx
      • name: busybox image: busybox ```
  • The image name is the Docker Hub image that we are going to create.
    • If you are using other registries aside from Docker Hub, provide the full path to the repo in the image line.
  • Lists are defined with a - and then followed by the objects.
  • Full file: 8dcc535be1229071a39fbd0e0d664bad.png
  • kubectl apply or kubectl create work in the same fashion when creating a new object.
  • We run kubectl apply -f pod.yaml The -f means file
  • Check the status with kubectl get pods
  • Will go from ContainerCreating state to Running state.
  • To get more information about the pod, run kubectl describe pod <name>

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