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502 with localhost as target_url #182

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montanaflynn opened this issue Apr 29, 2015 · 3 comments
Closed

502 with localhost as target_url #182

montanaflynn opened this issue Apr 29, 2015 · 3 comments
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@montanaflynn
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Getting 502 from Kong when acting as a reverse proxy for a local service using localhost in the target_url. As you can see the service is up and running and works when added to Kong as 127.0.0.1 but when using localhost Kong returns a 502.

$ curl localhost:8001/apis/ | jq .
{
  "data": [
    {
      "created_at": 1430299086000,
      "name": "lwan",
      "target_url": "http://localhost:4444",
      "id": "2d27547e-5bd1-466c-c632-6ce4e68cb255",
      "public_dns": "lwan.com"
    },
    {
      "created_at": 1430299175000,
      "name": "lwan2",
      "target_url": "http://127.0.0.1:4444",
      "id": "1e07b7c5-d0c7-4354-c3b9-4083c59d8fd3",
      "public_dns": "lwan2.com"
    }
  ]
}

$ curl http://localhost:4444/hello
Hello, world!

$ curl http://localhost:8000/hello -H "host:lwan.com"
<html>
<head><title>502 Bad Gateway</title></head>
<body bgcolor="white">
<center><h1>502 Bad Gateway</h1></center>
<hr><center>openresty/1.7.10.2rc0</center>
</body>
</html>

$ curl http://localhost:8000/hello -H "host:lwan2.com"
Hello, world!
@subnetmarco
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The same problem might be related to #163 and may be caused by #127 - will look into it.

@montanaflynn
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I don't think it's related to #163 as that issue is using 127.0.0.1 and as far as I know only affects Kong running in docker. It may be related to #127, in fact there's another issue brought up in gitter chat that could also be related so I'll make an issue for that as well.

@subnetmarco subnetmarco mentioned this issue May 1, 2015
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@pgeseraphin pgeseraphin mentioned this issue May 4, 2015
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@subnetmarco
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This issue has been fixed and will be available in the next release of Kong.

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@montanaflynn @subnetmarco