Servox

Added

- Prometheus connector fast-fail support; short-circuit long running measurements when SLO violations are detected [330](https://github.com/opsani/servox/pull/330)
- Kubernetes connector Argo Rollouts WorkloadRef support [337](https://github.com/opsani/servox/pull/337)
- Opsani Dev connector support for configuration of image and tag used for envoy sidecar injection [341](https://github.com/opsani/servox/pull/341)
- Kubernetes connector support for injecting static environment variables into the tuning Pod [343](https://github.com/opsani/servox/pull/343)

Changed

- Kubernetes Deployment optimizations (Saturation Mode) `destroy` error behavior changed to `shutdown`; the Deployment
resource is no longer destroyed and is scaled to zero replicas instead [317](https://github.com/opsani/servox/pull/317)
it to zero replicas instead
- Kubernetes adjustment values no longer raise validation errors when outside the configured range (eg. falling back to
initially observed/baseline values) [279](https://github.com/opsani/servox/pull/279)

Fixed

- Checks running on multiple connector assemblies were only processing checks for the first connector to respond [351](https://github.com/opsani/servox/pull/351)
- Prometheus connector reliance on implicit importing of servo.cli [355](https://github.com/opsani/servox/pull/355)

Changed

- Updated opsani Dev connector metrics to remove confusing _avg metric name [331](https://github.com/opsani/servox/pull/331)

Changed
* Update forked kubernetes_asyncio dependency to use PyPI package source instead of github [315](https://github.com/opsani/servox/pull/315)

Changed

- Improved messaging of unschedulable adjustment rejections [285](https://github.com/opsani/servox/pull/285)
- Test suites now treat warnings as errors [288](https://github.com/opsani/servox/pull/288)
- Relaxed validation of account names to support accounts that don't adhere to DNS naming convention [302](https://github.com/opsani/servox/pull/302)
- Updated calculation and naming of Opsani Dev prometheus metrics to use averages [305](https://github.com/opsani/servox/pull/305)

Added

- Beta support for optimizing [Argo Rollouts](https://argoproj.github.io/argo-rollouts/) [#303](https://github.com/opsani/servox/pull/303)
- Simple telemetry to report run environment details to the backend [261](https://github.com/opsani/servox/pull/261)
- Existing kubernetes resource requests/limits are now validated [282](https://github.com/opsani/servox/pull/282)

Removed

- Opsani Dev p99 latency metrics [306](https://github.com/opsani/servox/pull/306)
- Opsani Dev main_pod_avg_request_rate redundant metric [305](https://github.com/opsani/servox/pull/305)

Fixed

- The Optimizer `base_url` is now normalized to strip a trailing slash to ensure
that computed paths are deterministically correct.
- Cancellation requests from the optimizer were not being properly respected,
resulting in unnecessary delays to cancel operations from the console.
- Enforce settlement time user-config parameter.

Enhanced

- The `port` option is now respected by the sidecar injection remedy.
- Introduced the `scripts` connector that supports attaching arbitrary shell
commands to be run before, on, or after an event is dispatched by the servo. [245](https://github.com/opsani/servox/pull/225)
- Add ImagePullBackOff error for target service (tuning or mainline) [248](https://github.com/opsani/servox/pull/248)
- Improve K8s Deployment updates and error handling. [253](https://github.com/opsani/servox/pull/253)

Fixed

- Dynamically named ports are now supported by resolving the port name against
the Pod spec template [246](https://gihtub.com/opsani/servox/pull/246)
- Use correct process for determining current active pods [247](https://gihtub.com/opsani/servox/pull/247)
- Support settlement command correctly in ServoX k8s connector [240](https://gihtub.com/opsani/servox/pull/240)
- Remove token exposure in TRACE log [239](https://gihtub.com/opsani/servox/pull/239)
- When checks fail and are rerun, the tuning pod is no longer rebuilt
unnecessarily.
- Eliminated cases where the `KubernetesConnector` could fail to report progress
due to Kubernetes API availability, timeouts, etc. resulting in errant Servo
disconnected events being emitted by the optimizer.
- Improved test resiliancy and removed name collisions in automated test namespaces