hap_tests with simple github actions

• Contents
  • ScreenCaptures
  • setup-instructions
  • Github-Actions
  • TO-DO

This repo can be used to learn some basics and test some HAP configs in a dockerized environment. This esentially tries to elimnate one's need to setup a haproxy on a vm and servers on multiple vm's to get started with haproxy and here one can learn and do some minimal testing on a local machine with docker and docker-compose installed.

The repo comes with a simple 30 lines of a dockerized flask server, which servers a simple html.

The folders flaskapp1 and flaskapp2 contain two slightly different versions of the same flaskapp. flaskapp2 has an extra line in its html saying :- I am from FAPP2
This is just to test that the requests are being routed to 2 different backends.

The changes to hap configurations can be made under hap/haproxy.cfg.

Offical docker image of the HAPROXY and its relevant docs can be found at https://hub.docker.com/_/haproxy Haproxy doesn't write logs to disks. Hap it's contraized form writes the logs to the stdout so one can check the hap logs there. Or one can use a rsyslog container and make it write to a volume.

In its current form, the HAP backends are setup to have a roundrobin for routing the incoming requests. One can also modify the cookie serverid and see the requests routed to different backends.

The 2 serverids mentioned are in the hap/haproxy.cfg file and they are f1 and f2 f1 --> routes the requests to container created using the flaskapp1 Dockerfile f2 --> routes the requests to container created using the flaskapp2 Dockerfile, which says "I am from FAPP2"

ScreenCaptures

The below image shows haplog entry and the the container served from the image in flaskapp2

The below image shows the response on explicity changing the serverid cookie to f1, it gets reflected in the image and

Clear cookies and refresh to see roundrobin in action, the request will be redirected to different backends,

setup-instructions

   $git clone https://github.com/Virajdatt/hap_tests.git
   $cd hap_tests
   $docker-compose up

In case changes are made to the hap/haproxy.cfg or any other file in general please use the --build argument to rebuild things

$docker-compose up --build

The-repo-now-has-github-actions-setup

TO-DO

1. Include write up for starting up the Haproxy
2. Add comments in the haproxy.cfg file