While at it, stop sending requests to unavailable backend for 3 seconds
before the next attempt. This should reduce the amounts of useless work
and the number of useless network packets when the backend is temporarily unavailable.
* app/vmauth: add concurent requests limit per auth record
* app/vmauth: added clarification comment
* app/vmauth: remove unused code
* app/vmauth: move read from limiter
* app/vmauth: fix text
* app/vmauth: fix comments
* - Clarify the docs for the max_concurrent_requests option at docs/vmauth.md
- Clarify the description of the change at docs/CHANGELOG.md
- Make sure that the -maxConcurrentRequests takes precedence over per-user max_concurrent_requests
- Update tests for verifying that the max_concurrent_requests option is parsed properly
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3346
---------
Co-authored-by: Aliaksandr Valialkin <valyala@victoriametrics.com>
Usernames could be duplicate if it has uniq password.
vmauth makes routing based on auth token and username + password combination must be unique for this case.
* Document the ability to specify http or https urls in `-auth.config` at docs/CHANGELOG.md
* Move the ReadFileOrHTTP to lib/fs, so it can be re-used in other places where a file
should be read from the given path. For example, in `-promscrape.config` at `vmagent`.
* add support for reading remote auth_config file via http
* fix lint
* fix defer on close body
Co-authored-by: Tiago Magalhães <tmagalhaes@wavecom.pt>
