Solved Issue with udpPorts & CloudronManifest.json Parsing

[murgero]

Need some assistance with this error message:

Jan 01 00:00:00 Cannot use 'in' operator to search for 'MINETEST_PORT' in undefined
Jan 01 00:00:00 at createSubcontainer (/home/yellowtent/box/src/docker.js:206:35)
Jan 01 00:00:00 at Object.createContainer (/home/yellowtent/box/src/docker.js:310:5)
Jan 01 00:00:00 at createContainer (/home/yellowtent/box/src/apptask.js:134:12)
Jan 01 00:00:00 at /home/yellowtent/box/node_modules/async/dist/async.js:3880:24
Jan 01 00:00:00 at replenish (/home/yellowtent/box/node_modules/async/dist/async.js:1011:17)
Jan 01 00:00:00 at iterateeCallback (/home/yellowtent/box/node_modules/async/dist/async.js:995:17)
Jan 01 00:00:00 at /home/yellowtent/box/node_modules/async/dist/async.js:969:16
Jan 01 00:00:00 at /home/yellowtent/box/node_modules/async/dist/async.js:3885:13
Jan 01 00:00:00 at /home/yellowtent/box/src/apptask.js:90:16
Jan 01 00:00:00 at /home/yellowtent/box/src/appdb.js:476:16

This happens during the "Downloading Image..." portion of an app install I am working on. Removing udpPorts from the config works, however we need a UDP port open here.

The manifest:

{
  "id": "net.minetest.cloudronapp",
  "title": "Minetest Server",
  "author": "Minetest",
  "description": "file://DESCRIPTION.md",
  "icon": "file://logo.png",
  "changelog": "file://CHANGELOG",
  "tagline": "Multiplayer Server for Minetest",
  "version": "1.0.0",
  "healthCheckPath": "/api/v1/healthcheck",
  "tags": [ "game", "multiplayer" ],
  "memoryLimit": 1342177280,
  "httpPort": 3000,
  "udpPorts": {
    "MINETEST_PORT": {
      "title": "Server Port",
      "description": "Server Port where Minetest clients connect",
      "defaultValue": 30000,
      "containerPort": 30000
    }
  },
  "manifestVersion": 1,
  "website": "https://minecraft.net/",
  "contactEmail": "support@cloudron.io",
  "mediaLinks": [
    "https://s3.amazonaws.com/cloudron-app-screenshots/net.minecraft.cloudronapp/2e986e7d52a3abf2f68cec5704b1717e8d2de8bc/minecraft-01.png"
  ],
  "addons": {
    "localstorage": {},
    "ldap": {}
  }
}

[nebulon]

Which version of Cloudron is this running against and also does that happen during a fresh installation of the app or cloudron install over an existing one?

[murgero]

@nebulon

Which version of Cloudron is this running against

Latest public stable version - 4.1.7

---

does that happen during a fresh installation of the app or cloudron install over an existing one?

Both fresh and already installed apps that reference updPorts breaks in this way.

---

I'd like to note this is a vanilla install of Cloudron on ubuntu 18.04. There are no modifications beyond a couple custom app packages.

[nebulon]

For some reason I cannot reproduce this error. Do you have an upstream git repository where I could test this with the exact package you are trying to install?

[murgero]

@nebulon Are you available on Matrix or another way to PM? It's a private repo so I don't want post a link here publicly just yet.

Edit: Actually, you can change tcpPorts to udpPorts in the minecraft app package and it causes the error for me.

[nebulon]

Oh! I can reproduce the issue now. It is however fixed already but only part of the next release, which should go out soon.

[murgero]

@nebulon Fantastic, thank you for the information! I look forward to confirming that

[girish]

This should be fixed in 4.2

[yusf]

@girish Seems not. By doing this:

  "udpPorts": {
    "SERVER_PORT": {
      "title": "Server Port",
      "description": "Server Port where Minetest clients connect",
      "defaultValue": 30000,
      "containerPort": 30000
    }
  },

I get this when trying:

Cannot use 'in' operator to search for 'SERVER_PORT' in undefined

[girish]

I can reproduce this. Fixed in https://git.cloudron.io/cloudron/box/commit/7cbe60a484cf03c9373c8f57307ad0d9b49a695a . It's a simple change, in case you want apply it locally on your cloudron