Fatal: unable to access 'https://github.com/SamSaffron/pups.git/'

Installation
1

I have followed the instructions at https://github.com/discourse/discourse/blob/master/docs/INSTALL-cloud.md, and received this error while attempting ./discourse-setup:

fatal: unable to access 'https://github.com/SamSaffron/pups.git/': SSL: certificate subject name (jetdevs.xyz) does not match target host name 'github.com'
281e1ca9794eccc050c2100c479a4511bc7e17e045c8e92654e45747997ec477

The following is the output of ./discourse-setup after configuration:


ENTER to continue, 'n' to try again, Ctrl+C to exit: 

Configuration file at  updated successfully!

Updates successful. Rebuilding in 5 seconds.
Building app

WARNING: We are about to start downloading the Discourse base image
This process may take anywhere between a few minutes to an hour, depending on your network speed

Please be patient

Unable to find image 'discourse/base:2.0.20180404' locally
2.0.20180404: Pulling from discourse/base
22dc81ace0ea: Pulling fs layer
1a8b3c87dba3: Pulling fs layer
91390a1c435a: Pulling fs layer
07844b14977e: Pulling fs layer
b78396653dae: Pulling fs layer
ef3e3cc07f1b: Pulling fs layer
b78396653dae: Waiting
ef3e3cc07f1b: Waiting
91390a1c435a: Verifying Checksum
91390a1c435a: Download complete
1a8b3c87dba3: Verifying Checksum
1a8b3c87dba3: Download complete
07844b14977e: Verifying Checksum
07844b14977e: Download complete
b78396653dae: Verifying Checksum
b78396653dae: Download complete
22dc81ace0ea: Download complete
22dc81ace0ea: Pull complete
1a8b3c87dba3: Pull complete
91390a1c435a: Pull complete
07844b14977e: Pull complete
b78396653dae: Pull complete
ef3e3cc07f1b: Verifying Checksum
ef3e3cc07f1b: Download complete
ef3e3cc07f1b: Pull complete
Digest: sha256:745365df6e01943d48cbe4c59214c76ac302def2d00a07aff07d625b306bbeb7
Status: Downloaded newer image for discourse/base:2.0.20180404
Ensuring launcher is up to date
Fetching origin
Launcher is up-to-date
cd /pups && git pull && /pups/bin/pups --stdin
fatal: unable to access 'https://github.com/SamSaffron/pups.git/': SSL: certificate subject name (jetdevs.xyz) does not match target host name 'github.com'
456ba8b4c0956f5482a0ce4421b9403a9ca613494aa46c078a860519ab7dea64
** FAILED TO BOOTSTRAP ** please scroll up and look for earlier error messages, there may be more than one
2 
fatal: unable to access 'https://github.com/SamSaffron/pups.git/':
  SSL: certificate subject name (jetdevs.xyz) does not match target host name 'github.com'

git was expecting to connect to github and ended up somewhere else - hence the certificate error

Do you have something ā€œfunnyā€ set up in your network, like a proxy?

If you try again, does it work?

3 Likes
3

I do not believe I have a proxy, although it is possible because I am using a VPS from Scaleway.
I tried twice, and it did not work. I have Docker set to use Googleā€™s DNS. My hosts file is this:

127.0.1.1       scw-1da44d scw-1da44d
127.0.0.1       localhost
::1             localhost ip6-localhost ip6-loopback
ff02::1         ip6-allnodes
ff02::2         ip6-allrouters

cURL is able to reach Github:

root@scw-1da44d:/var/discourse# curl github.com -v
* Rebuilt URL to: github.com/
*   Trying 192.30.253.112...
* Connected to github.com (192.30.253.112) port 80 (#0)
> GET / HTTP/1.1
> Host: github.com
> User-Agent: curl/7.47.0
> Accept: */*
> 
< HTTP/1.1 301 Moved Permanently
< Content-length: 0
< Location: https://github.com/
< 
* Connection #0 to host github.com left intact
4

Does curl https://github.com/ work?

1 Like
5

Try it with openssl directly to see the presented certificate.

openssl s_client -connect github.com:443
1 Like
6

You might check this topic: Discourse docker container has trouble reaching DNS. It sounds similar.

7

@supermathie curl https://github.com/: http://dpaste.com/14KZWJ7.txt
@dnsmichi openssl s_client -connect github.com:443: http://dpaste.com/3NDE1WV.txt
@pfaffman I have access to 8.8.8.8.

8

Hm, maybe a transparent proxy which just forwards the TLS requests (HA proxy et al). Iā€™d rather say that DNS doesnā€™t work here,

jetdevs.xyz is an obfuscated FQDN, or is it really whatā€™s shown in your output?

9

jetdevs.xyz is my domain.

10

Hm, check with your VM provider then please. If there really is a proxy in place, it may have troubles and they should have it monitored or noticed.

11

This errorā€¦

ā€¦and this outputā€¦

ā€¦contradict each another. Inside the container and outside the container you get different certificates for Github.

Have you changed the network configuration for docker in any way in ~/.docker/config.json or in /etc/docker/daemon.json?

3 Likes
12

I recently had a problem that was due to having some bogus stuff in /etc/resolve.conf. Resolution worked just fine outside the container, but inside the container it would fail.

Iā€™d check /etc/resov.conf and see that the nameservers line is something that makes sense and/or change it to something that youā€™re sure does.

4 Likes
13

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