Simple and neat html error page

50 lines of standalone minimal html for your users:

• while the backend services are unavailable (503)
• for unautenticated access (401)
• for resources not found (404)

Service Unavailable

Unauthorized

Not found

Usage

Service Unavailable comes in 2 versions:

• unavailable.html, static
• unavailable-reload, contains a javascript background check for the backend service and page will automatically reload once available

Example with HAProxy

Copy the content of the html file in your HAProxy configuration folder, add the following lines before.

HTTP/1.0 503 Service Unavailable
Cache-Control: no-cache
Connection: close
Content-Type: text/html

<Page Content>

Check file permissions, and add the errorfile directive to the defaults section of the haproxy configuration file (see here):

defaults
    log                        global
    option                     dontlognull
    option                     redispatch
    retries                    3
    errorfile                  503 /etc/haproxy/maintenance_page.http