[MESOS-6661] maintenance status page has inconsistent formatting

• Type: Bug
• Status: Resolved
• Priority: Trivial
• Resolution: Won't Fix
• Affects Version/s: 1.0.1
• Component/s: HTTP API
• Labels: formatting http

Environment

Mesos Version: 1.01
OS: Ubuntu 16.04 (both on the client and cluster nodes)
HTTP Interface: Chrome browser

• Assignee: Unassigned
• Reporter: Andrew Blanchard
• Created: 01/Dec/16 16:22
• Updated: 27/Mar/17 22:56
• Resolved: 27/Mar/17 22:56

Description

Description:
The MachineID lists on the /maintenance/status page are formatted differently. Specifically, with one machine `down` and one machine `draining`, the page is formatted as shown below. Note that the `draining_machines` list has a label ("id") on the machine ID. This formatting extends to multiple items in each respective list.

{
  "down_machines": [
    {
      "hostname": "agent2",
      "ip": "172.17.0.2"
    }
  ],
  "draining_machines": [
    {
      "id": {
        "hostname": "agent3",
        "ip": "172.17.0.3"
      }
    }
  ]
}

Steps to reproduce:

1. Add two agents to the maintenance schedule
2. Move one agent to the down state
3. View the status page at <masterIP:port>/maintenance/status

Proposed solution:
Unify the format. Either way is fine - personally I would prefer them to both be in the current form of `down_machines` with no label on the MachineIDs - but regardless, they should be the same.