Docker and Kubernetes examples don't appear to work correctly

[Yggdrasil]

Hi, first of all thank you for writing this handy tool. It appears to be just what I need.

In order to get a feel for how both http-broadcast and mercure work I'm trying to run the supplied examples. Unfortunately both the Docker and Kubernetes examples don't appear to work correctly (or I'm doing something wrong 😄). I'm not familiar enough yet with mercure or your code to figure it out myself. I'd appreciate if you could point me in the right direction!

I'm using the unmodified demo code from the /examples dir. In both demos the mercure hub responds with 404 on every query. Of course this means that the Varnish cache never gets flushed.

Docker-compose:

mercure_1  | 172.18.0.5 - - [20/Nov/2019:17:57:00 +0000] "GET /hub?topic=http-broadcast HTTP/1.1" 404 19 "" "Go-http-client/1.1"
mercure_1  | 172.18.0.6 - - [20/Nov/2019:17:57:00 +0000] "POST /hub HTTP/1.1" 404 19 "" "Go-http-client/1.1"
varnish_2  | time="2019-11-20T17:57:00Z" level=error msg="invalid response from Hub" response="HTTP/1.1 404 Not Found\r\nContent-Length: 19\r\nContent-Security-Policy: default-src 'self'\r\nContent-Type: text/plain; charset=utf-8\r\nDate: Wed, 20 Nov 2019 17:57:00 GMT\r\nX-Content-Type-Options: nosniff\r\nX-Frame-Options: DENY\r\nX-Xss-Protection: 1; mode=block\r\n\r\n404 page not found\n"
varnish_2  | 172.18.0.3 - - [20/Nov/2019:17:57:00 +0000] "PURGE / HTTP/1.1" 500 0 "" "curl/7.66.0"

Kubernetes:
mercure deployment

10.10.3.27 - - [20/Nov/2019:17:59:54 +0000] "GET /hub?topic=http-broadcast HTTP/1.1" 404 19 "" "Go-http-client/1.1"
10.10.5.59 - - [20/Nov/2019:17:59:57 +0000] "GET /hub?topic=http-broadcast HTTP/1.1" 404 19 "" "Go-http-client/1.1"
10.10.5.59 - - [20/Nov/2019:18:00:00 +0000] "POST /hub HTTP/1.1" 404 19 "" "Go-http-client/1.1"
10.10.5.59 - - [20/Nov/2019:18:00:00 +0000] "GET /hub?topic=http-broadcast HTTP/1.1" 404 19 "" "Go-http-client/1.1"
10.10.3.27 - - [20/Nov/2019:18:00:01 +0000] "GET /hub?topic=http-broadcast HTTP/1.1" 404 19 "" "Go-http-client/1.1"

varnish deployment

10.10.0.30 - - [20/Nov/2019:18:03:00 +0000] "PURGE / HTTP/1.1" 500 0 "" "curl/7.66.0"
time="2019-11-20T18:03:10Z" level=error msg="invalid response from Hub" response="HTTP/1.1 404 Not Found\r\nContent-Length: 19\r\nContent-Security-Policy: default-src 'self'\r\nContent-Type: text/plain; charset=utf-8\r\nDate: Wed, 20 Nov 2019 18:03:10 GMT\r\nX-Content-Type-Options: nosniff\r\nX-Frame-Options: DENY\r\nX-Xss-Protection: 1; mode=block\r\n\r\n404 page not found\n"
10.10.0.30 - - [20/Nov/2019:18:03:10 +0000] "PURGE / HTTP/1.1" 500 0 "" "curl/7.66.0"
time="2019-11-20T18:03:40Z" level=error msg="invalid response from Hub" response="HTTP/1.1 404 Not Found\r\nContent-Length: 19\r\nContent-Security-Policy: default-src 'self'\r\nContent-Type: text/plain; charset=utf-8\r\nDate: Wed, 20 Nov 2019 18:03:40 GMT\r\nX-Content-Type-Options: nosniff\r\nX-Frame-Options: DENY\r\nX-Xss-Protection: 1; mode=block\r\n\r\n404 page not found\n"
10.10.0.30 - - [20/Nov/2019:18:03:40 +0000] "PURGE / HTTP/1.1" 500 0 "" "curl/7.66.0"
time="2019-11-20T18:03:50Z" level=error msg="invalid response from Hub" response="HTTP/1.1 404 Not Found\r\nContent-Length: 19\r\nContent-Security-Policy: default-src 'self'\r\nContent-Type: text/plain; charset=utf-8\r\nDate: Wed, 20 Nov 2019 18:03:50 GMT\r\nX-Content-Type-Options: nosniff\r\nX-Frame-Options: DENY\r\nX-Xss-Protection: 1; mode=block\r\n\r\n404 page not found\n"
10.10.0.30 - - [20/Nov/2019:18:03:50 +0000] "PURGE / HTTP/1.1" 500 0 "" "curl/7.66.0"

[jderusse]

Hello, mercure changed the default route from /hub to /.well-known/mercure and I didn't updated http-broadcast documentation. I think this is the route cause of your issue.
Could you give a try with HUB_ENDPOINT=http://hub_container_name/.well-known/mercure?

If it's OK, I'll really appreciate if you had time to open a PR.

[Yggdrasil]

Fixed in #15