feat: pod log inquiry api implementation

[itnpeople]

• Get a pod logs.
• http://<Backend URL>/raw/clusters/<Cluster Name>/api/v1/namespaces/<Namespace Name>/pods/<Pod Name>/log?follow=<true/false | default=false>&container=<Container Name | options>&previous=<true/false | default=false>
• QueryString
  • container : the container for which to stream logs; defaults to only container if there is one container in the pod
  • follow : follow the log stream of the pod
  • previous : return previous terminated container logs; defaults to false
• 예
  • curl http://localhost:3001/raw/clusters/apps-06/api/v1/namespaces/kube-system/pods/metrics-server-84b97b4d6-4gxvs/log?follow=1