add RequestMetricsMiddleware which tracks key metrics related to each request the LLS server will recieve:
1. llama_stack_requests_total: tracks the total amount of requests the server has processed
2. llama_stack_request_duration_seconds: tracks the duration of each request
3. llama_stack_concurrent_requests: tracks concurrently processed requests by the server
The usage of a middleware allows this to be done on the server level without having to add custom handling to each router like the inference router has today for its API specific metrics.
Also, add some unit tests for this functionality
resolves#2597
Signed-off-by: Charlie Doern <cdoern@redhat.com>
# What does this PR do?
<!-- Provide a short summary of what this PR does and why. Link to
relevant issues if applicable. -->
This PR is responsible for removal of Conda support in Llama Stack
<!-- If resolving an issue, uncomment and update the line below -->
<!-- Closes #[issue-number] -->
Closes#2539
## Test Plan
<!-- Describe the tests you ran to verify your changes with result
summaries. *Provide clear instructions so the plan can be easily
re-executed.* -->
get_vector_db() will raise an exception if a vector store won't be
returned
client handling is redundant
Signed-off-by: Nathan Weinberg <nweinber@redhat.com>
