How to pass user input as host value in action from stackstorm

$ cat actions/docker_status.yaml 
---
name: status
pack: docker_status
runner_type: "remote-shell-script"
description: "Checking docker continer status on FPM VM's"
enabled: true
entry_point: "docker_status.sh"
parameters:
 hosts:
   immutable: true
   default: "65.0.194.82"
 private_key:
   immutable: true
   default: "/home/stanley/.ssh/test"
 username:
   immutable: true
   default: "centos"
 timeout:
   type: 'integer'
   default: 60

What’s your specific question? Passing input parameters to actions is covered pretty thoroughly in the StackStorm documentation, please read that before asking questions here.
What have you tried?
What did you expect to happen?
What happened instead? Please copy any error messages, or any tracebacks, to give us an idea of what exactly is going wrong.