olix0r
log: add tokio-console support
This branch adds initial support for setting up the Tokio console to
track tasks in a Kubert controller. In order to do so, I added a new
LogArgs struct in the log module to represent a logging
configuration that can be parsed using clap, including a flag for
enabling tokio-console support. When this flag is present, and the
requisite kubert feature and RUSTFLAGS="--cfg tokio_unstable" are
enabled, the Tokio console server is enabled.
Additionally, the new LogArgs struct handles parsing the LogFormat
and tracing_subscriber::EnvFilter arguments. The LogArgs type uses a
custom clap::FromArgs implementation so that the default value for the
filter can include the name of the binary itself.
Finally, I added support for spawning named tasks using the unstable
tokio::task::Builder API, when the tokio_unstable cfg is enabled.
These task names will show up in the console when the cfg is enabled.
