Hi , one question ... not sure it make sense but i am always confused in this .. . . .

Nitin:
Hi , one question … not sure it make sense but i am always confused in this …

We have nodeselector , nodename and Affinity … my understanding nodename is very direct and nodeselector is when it’s simple or not much condition and Affinity is when we have “or” and “And” condition …

Then in that case if my understanding is correct … why don’t we use just nodename … to place pod on a specific node.

Dhatchanamoorthy Murugesan:
Nodeselector you may use the tag that is used in nodes to select and connect

But node name, just uses the name which is more straight forward and reduces various flexibility

Mohamed Ayman:
Hello @Nitin,
Because There are Some of the limitations of using nodeName to select nodes are:
• If the named node does not exist, the Pod will not run, and in some cases may be automatically deleted.
• If the named node does not have the resources to accommodate the Pod, the Pod will fail and its reason will indicate why, for example OutOfmemory or OutOfcpu.
• Node names in cloud environments are not always predictable or stable.

unnivkn:
Hi @Nitin fyr: