go-http-redirector

A basic http service to redirect requests to the defined url. Requests can be redirected as temporary or permanent based on regex matching.

Environment variables can be used for configuration:

• REDIRECT_URL
• TEMPORARY_REDIRECT_REGEX
• PERMANENT_REDIRECT_REGEX

REDIRECT_URL is mandatory. eg.: https://blog.berkgokden.com

TEMPORARY_REDIRECT_REGEX is a regex string. Default value matches html, php, asp extensions.

PERMANENT_REDIRECT_REGEX is a regex string. Default value matches jpg, png, bmp, json, js extensions.

Default redirection behaviour is temporary redirection.

Redirections done with 307, 308 codes to keep http method type.

Build docker image:

docker build -t berkgokden/redirector .

Run as docker image locally

docker run -it -p 9090:9090 -p 9091:9091 -e REDIRECT_URL="https://blog.berkgokden.com" berkgokden/redirector

Redirection service is running on port 9090

Heath/Readiness service is running on port 9091

These ports are not configurable since it is intended to be run inside docker.

Heath endpoint: /healthy
Readiness endpoint /ready

Check redirections with curl:

Permanent redirect:

$ curl -i localhost:9090/img.jpg
HTTP/1.1 308 Permanent Redirect
Content-Type: text/html; charset=utf-8
Location: https://blog.berkgokden.com/img.jpg
Date: Thu, 06 Jun 2019 23:31:17 GMT
Content-Length: 71

<a href="https://blog.berkgokden.com/img.jpg">Permanent Redirect</a>.

Temporary redirect:

$ curl -i localhost:9090/page.html
HTTP/1.1 307 Temporary Redirect
Content-Type: text/html; charset=utf-8
Location: https://blog.berkgokden.com/page.html
Date: Thu, 06 Jun 2019 23:32:20 GMT
Content-Length: 73

<a href="https://blog.berkgokden.com/page.html">Temporary Redirect</a>.