WIP: work on proxy

[Jollyfant]

If anyone wants to help me with the design of the proxy described by @kaestli in #75. I took the NOA example and added a Dockerifle that runs Apache and enables the example .conf file.

I don't really know how to proceed. I configured eida.gein.noa.gr in /etc/hosts to points to localhost but it doesn't really do anything besides an Internal Server Error.

[damb]

Ciao @Jollyfant,

In order to make profit of the setup described in #75, firstly eida-federator must implement the HTTP GET endpoint requests as described in #77. Besides, the bulk requests (implemented with 11313cc9b23534e12901e6727e0dd458e17c858e) and the reverse proxy caching setup are somehow mutual exclusive since caching most probably will work best with granular endpoint requests.

Though, implementing #75 for our docker setup might already be worth it. When doing so, also check if there is a way of exclusively relying on the endpoints DNS instead of using hard coded IPs.

[kaestli]

note that you can set up this configuration anyway. If done correctly, it would proxy also POST requests, however (in agreement with rfc 2616) not cache them.

do you have the http 500 only with station requests to NOA or also with dataselect requests?

[Jollyfant]

do you have the http 500 only with station requests to NOA or also with dataselect requests?

It was both but it turns out I had to enable a2enmod proxy_http too to make it work. A request to eida.gein.noa.gr now goes through localhost and data is returned. However, when I retry the same request it doesn't seem go to faster.

[Jollyfant]

root@0498e3397b2f:/tmp# curl "eida.gein.noa.gr/fdsnws/station/1/query?start=2019-01-01&end=2019-01-01T00:01:00&level=response" > /dev/null
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100 19.1M    0 19.1M    0     0  1695k      0 --:--:--  0:00:11 --:--:-- 2744k
root@0498e3397b2f:/tmp# curl "eida.gein.noa.gr/fdsnws/station/1/query?start=2019-01-01&end=2019-01-01T00:01:00&level=response" > /dev/null
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100 19.1M    0 19.1M    0     0  1570k      0 --:--:--  0:00:12 --:--:-- 2679k
root@0498e3397b2f:/tmp# curl "eida.gein.noa.gr/fdsnws/station/1/query?start=2019-01-01&end=2019-01-01T00:01:00&level=response" > /dev/null
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100 19.1M    0 19.1M    0     0  1697k      0 --:--:--  0:00:11 --:--:-- 2826k

[damb]

Implemented with #85.