Logging userlist username


I have setup haproxy to use a userlist and groups to add basic authentication to a local service which doesn’t have this functionality. Everything is working as expected, but I don’t see how to capture the username that was authenticated so I can add it to the logs. Is this possible to do?


Well, we need a converter to decode base64 and it currently does not exist. We may write one, doesn’t sound that complicated.

There is a dirty workaround: store in a map file the content of the Authorization header encoded in base 64 as the key and the user name as the value.
Then you would be able to do


And your mapfile would contain something like:

YWRtaW46YWRtaW4K    admin
dXNlcjE6bXlwYXNzd29yZAo=  user1