Deck shows differences with route that have more than 3 methods defined

[gchristidis]

It appears that deck (v 1.8.2) does not like having more than 3 methods defined in a route.

The following yaml shows the issue with a route with more than 3 methods, i have used 2 select tags as thats what i am using

_format_version: '1.1'
_info:
  select_tags:
  - test
  - route
routes:
- methods:
  - GET
  - DELETE
  - POST
  - PUT
  - PATCH
  name: test_route
  https_redirect_status_code: 426
  path_handling: v1

Running a deck sync creates the route but when you run a diff or a sync again it shows its updating the route but with no change flags (+-) on any line. Looking at the output closely you see its only showing 3 elements in the methods.

updating route test_route {
   "https_redirect_status_code": 426,
   "id": "985c5808-f55f-4766-932d-d091e89abfc2",
   "methods": [
     "GET",
     "PATCH",
     "POST",
   ],
   "name": "test_route",
   "path_handling": "v1",
   "preserve_host": false,
   "protocols": [
     "http",
     "https"
   ],
   "regex_priority": 0,
   "strip_path": false,
   "tags": [
     "test",
   ]
 }

Summary:
  Created: 0
  Updated: 1
  Deleted: 0

Looking at the route from the admin api you see all the methods

{
  "strip_path": false,
  "tags": [
    "route",
    "test"
  ],
  "paths": null,
  "destinations": null,
  "headers": null,
  "protocols": [
    "http",
    "https"
  ],
  "created_at": 1633605274,
  "snis": null,
  "service": null,
  "name": "test_route",
  "methods": [
    "DELETE",
    "GET",
    "PATCH",
    "POST",
    "PUT"
  ],
  "preserve_host": false,
  "regex_priority": 0,
  "updated_at": 1633605274,
  "sources": null,
  "id": "985c5808-f55f-4766-932d-d091e89abfc2",
  "https_redirect_status_code": 426,
  "hosts": null,
  "path_handling": "v1"
}

[GGabriele]

Hi @gchristidis , can you please give us more info about how you installed decK, what system are you running etc? I tested installing 1.8.2 both from source and by downloading and running the binary directly, but couldn't be able to reproduce the issue.

[gchristidis]

HI @GGabriele, I am just downloading deck 1.8.2 and using it directly. Its running against a Kong 1.5.1 instance backed by a Datastax Enterprise Cassandra instance both of which are running on an ubuntu 16.05.

Here is the verbose output from a deck diff of the above yaml file after its already been sync'd
deck_sync.txt

You can see the debug message from the /routes call it contains "methods":["DELETE","GET","PATCH","POST","PUT"] but the deck output shows only GET, PATCH & POST methods with the summary saying 1 updated.

[hbagdi]

Closing this due to lack of activity. Please re-open if needed.

[gchristidis]

@GGabriele has this been resolved ?

[GGabriele]

@gchristidis I wasn't able to reproduce this issue with the same decK and Kong versions :\ are you able to check if you get the same with a newer Kong version?

[gchristidis]

@GGabriele Yes its still occurs, like I said I use deck 1.8.2 with Kong 1.5.1 backed by cassandra (Datastax enterprise 6.7).
However i have managed to get the same result using docker images for Kong 2.7, Cassandra 3 and the latest deck. The test_kong.sh below is a bash script that runs the docker images, downloads deck and uses it to apply a simple yaml file with a route that has 5 methods. It then does a diff and reports it as a difference showing only 3 methods.

The output towards the end shows the following. The diff should show no diffs but it outputs the route with only 3 methods shown and a summary that says updated 1. Doing a sync also shows the same.

Running deck sync for the first time
creating route test_route
Summary:
  Created: 1
  Updated: 0
  Deleted: 0
Running deck diff to check status - THERE SHOULD BE NO DIFFERENCES BUT THERE IS
updating route test_route  {
   "https_redirect_status_code": 426,
   "id": "2ec471d6-629c-459e-801b-1a74c4c53c88",
   "methods": [
     "GET",
     "PATCH",
     "POST",
   ],
   "name": "test_route",
   "path_handling": "v1",
   "preserve_host": false,
   "protocols": [
     "http",
     "https"
   ],
   "regex_priority": 0,
   "request_buffering": true,
   "response_buffering": true,
   "strip_path": false,
   "tags": [
     "test",
   ]
 }

Summary:
  Created: 0
  Updated: 1
  Deleted: 0

[hbagdi]

This seems like a Cassandra-specific issue.
Can you run deck diff --verbose 2? That will show the response that is returned from Kong.

Also, please note that Cassandra with Kong has been deprecated: https://github.com/Kong/kong/blob/master/CHANGELOG.md#270

[gchristidis]

My comment on the 17th Jan has a link deck_sync.txt that has that output. Yes I was aware of Cassandra deprecation.

[99hops]

I also experience similar issue with Kong 2.8.0-alpine and DecK 1.11.0 in docker containers

deck sync --skip-consumers -s /kong.yaml

updating route keys  {
    "https_redirect_status_code": 426,
    "id": "4c052c8d-c522-476d-8b10-448ae4aa113a",
    "methods": [
      "GET",
      "POST",
      "DELETE",
      "OPTIONS"
    ],
    "name": "keys",
 -  "path_handling": "v0",
    "paths": [
      "/xxx"
    ],
    "preserve_host": false,
    "protocols": [
      "https"
    ],
    "regex_priority": 0,
    "request_buffering": true,
    "response_buffering": true,
    "service": {
      "id": "94229057-a6d6-42eb-af64-e48f9070e462"
    },
    "strip_path": false
  }

Summary:
   Created: 0
   Updated: 1
   Deleted: 0

Second run without and change in the /kong.yaml

updating route keys  {
   "https_redirect_status_code": 426,
   "id": "4c052c8d-c522-476d-8b10-448ae4aa113a",
   "methods": [
     "GET",
     "POST",
     "DELETE",
     "OPTIONS"
   ],
   "name": "keys",
-  "path_handling": "v0",
   "paths": [
     "/xxx"
   ],
   "preserve_host": false,
   "protocols": [
     "https"
   ],
   "regex_priority": 0,
   "request_buffering": true,
   "response_buffering": true,
   "service": {
     "id": "94229057-a6d6-42eb-af64-e48f9070e462"
   },
   "strip_path": false
 }

Summary:
  Created: 0
  Updated: 1
  Deleted: 0

And this happens each time I ran the command, what could be causing this?!