* plugins/rest: cache *http.Client and auth plugin
This will require further changes to cert TLS and token auth methods to
stay compatible with the previous behaviour.
* plugins/rest: configurable re-read interval for TLS cert+key
Defaulting to re-reading all the time, more or less like we did before.
(I write "more or less" because we now do it in `GetClientCertificate()`.)
* plugins/rest: document change (code comments, CHANGELOG)
* plugins/rest: set minimum TLS version where `&tls.Config{}` is used
* plugins/rest: ensure min TLS version and ciphersuites are used
...as configured with the server.
Signed-off-by: Stephan Renatus <stephan.renatus@gmail.com>
Stephan Renatus
e0d66617c3