Manual Scheduling

Describe about Manual Scheduling

It is the way that we create schedule for Pod .By default in Pod template when we create the Pod Kubernetes will have scheduler to select the Node . After create pod it will update section called nodeName in template file

# Pod Template
apiVersion: v1
kind: Pod
metadata:
  name: nginx
  labels: 
    name: nginx
spec: 
  containers:
  - name: nginx
    image: nginx 
    ports:
      - containerPort: 8080
  nodeName: <node_name> # this property will set automatically but we can customize it
            
          

We can use this nodeName property in case that we create the Pod at first time but If we would like to add the nodeName to existing Pod we need to use Binding

# Binding Template
apiVersion: v1
kind: Binding
metadata:
  name: nginx
target:
  apiVersion: v1
  kind: Node
  name: <node_name>  
  

Noted:

If the status of pod is pending , it mean don't have the scheduler in k8s