update prometheus exporter (#46)

Author: deankarn

CHANGELOG.md

@@ -1,174 +1,263 @@
 # Changelog
-All notable changes to this project will be documented in this file.
 
+All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
 
+## [0.15.0] - 2024-01-07
+
+### Fixed
+
+- updated `metrics-exporter-prometheus` to v 0.15.3 which fixes `Content-Type` response header being set on the response
+  according to the spec.
+
 ## [0.14.4] - 2023-12-14
+
 ### Fixed
+
 - `to_processing` metric when job rescheduled.
 
 ## [0.14.3] - 2023-12-13
+
 ### Fixed
+
 - version not incremented in Cargo.toml.
 
 ## [0.14.2] - 2023-12-13
+
 ### Fixed
+
 - `to_processing` metric using wrong `updated_at`.
 
 ### Added
+
 - Deprecation notice to README.
 
 ## [0.14.1] - 2023-06-02
+
 ### Fixed
+
 - created_at being updated when rescheduling a Job, only updated_at should/needs to be for metrics reporting.
 
 ## [0.14.0] - 2023-05-21
+
 ### Security
+
 - Updated deps with various fixes and optimizations.
 
 ## [0.13.0] - 2023-04-24
+
 ### Added
+
 - Ability to set state upon Job creation.
 
 ### Changed
+
 - Updated all dependencies to latest versions.
 - Signal shutdown now uses tracing logs.
 - Remove ansi lof printing.
 
 ## [0.12.1] - 2023-03-21
+
 ### Fixed
+
 - Added back TLS support accidentally removed in Tokio Postgres changeover.
 
 ## [0.12.0] - 2023-03-18
+
 ### Changed
+
 - SQLX -> Tokio Postgres + Deadpool. Better performance and allows for finer grained control.
 - Actix Web -> Axum.
 - Switched to internal migrations runner with proper locking semantics.
 
 ## [0.11.0] - 2023-01-03
+
 ### Added
+
 - Building of arm64 docker image.
 - Add labels to image eg. To indicate proper license.
 
 ### Changed
+
 - Workspace QOL improvements to use top level Cargo.toml.
 - Updated dependencies.
 - Updated README to add Rust HTTP Client link.
 
 ## [0.10.0] - 2022-10-29
+
 ### Added
+
 - HTTP Client.
 - HTTP Consumer abstraction.
 - Worker trait to be used by HTTP Consumer and future frontend consumers.
 - Additional documentation.
 
 ### Changed
+
 - Updated dependencies to latest versions.
 - Updated CI build file dependencies.
 
 ### Fixed
+
 - Generic params for Job struct to two separate as intended.
 - CI build because of openssl and pkg-config issues.
 
 ## [0.9.0] - 2022-09-05
+
 ### Added
+
 - Added new exists and get HTTP endpoint to be able to check for a Job's existence or fetch it.
 
 ### Changed
+
 - HTTP endpoints to be more sane + RESTful.
 - Metrics name.
 
 ## [0.8.0] - 2022-09-02
+
 ### Added
+
 - Added per queue runtime & health metrics.
 
 ## [0.7.0] - 2022-07-04
+
 ### Changed
+
 - Refactored code for more modular approach. This should allow for more frontends and backend in the future.
 
 ### Removed
+
 - CRON scheduler. With self-perpetuating jobs this is far less useful and anyone can easily implement on their own.
 
 ### Added
+
 - Ability to schedule Jobs with infinite retries by setting max_retries to a negative number eg. -1
 
 ## [0.6.1] - 2022-05-18
+
 ### Fixed
+
 - Reschedule metric.
 
 ## [0.6.0] - 2022-05-13
+
 ### Changed
+
 - Reschedule to accept setting/unsetting of state.
 
 ## [0.5.3] - 2022-05-07
+
 ### Fixed
+
 - Fixed recursive function call in is_retryable().
 - Updated dependencies with security/issue fixes.
 
 ### Added
+
 - Caching in CI for faster test & builds.
 - More debug level tracing.
 
 ### Changed
+
 - Default connection and idle timeouts to 5 and 60 seconds respectively.
 - Cleaned up error handling with impl From.
 - Renamed Job to RawJob for future client with Job with generic types.
 
 ### Removed
+
 - JobId and Queue alias types.
 
 ## [0.5.2] - 2022-04-22
+
 ### Fixed
-- Next update query when under very specific circumstances the Postgres query planner can do the wrong thing. See here for a detailed example https://github.com/feikesteenbergen/demos/blob/19522f66ffb6eb358fe2d532d9bdeae38d4e2a0b/bugs/update_from_correlated.adoc
+
+- Next update query when under very specific circumstances the Postgres query planner can do the wrong thing. See here
+  for a detailed
+  example https://github.com/feikesteenbergen/demos/blob/19522f66ffb6eb358fe2d532d9bdeae38d4e2a0b/bugs/update_from_correlated.adoc
 
 ### Added
+
 - Requirements section to README.
 
 ## [0.5.1] - 2022-04-22
+
 ### Added
+
 - Automatic docker image build and push.
 
 ## [0.5.0] - 2022-04-22
+
 ### Fixed
+
 - Updated job schema to add uuid. This fixes a locking issue when grabbing new items using IN rather than a SELECT FROM.
 
 ## [0.4.0] - 2022-03-14
+
 ### Added
+
 - Update deps.
 
 ## [0.3.0] - 2022-03-05
+
 ### Added
+
 - `/enqueue/batch` endpoint for efficient batch/bulk creation of Jobs.
 - Refactored `/next` endpoint to accept an optional number of Jobs to return for fetching a batch of Jobs.
 
 ## [0.2.0] - 2022-02-27
+
 ### Added
+
 - Future Job support using new `run_at` Job field.
 - Reschedule endpoint allowing the Job Runner to manage a unique/singleton Job rescheduling itself.
 
 [Unreleased]: https://github.com/rust-playground/relay-rs/compare/v0.14.4...HEAD
+
+[0.15.0]: https://github.com/rust-playground/relay-rs/compare/v0.14.4...v0.15.0
+
 [0.14.4]: https://github.com/rust-playground/relay-rs/compare/v0.14.3...v0.14.4
+
 [0.14.3]: https://github.com/rust-playground/relay-rs/compare/v0.14.2...v0.14.3
+
 [0.14.2]: https://github.com/rust-playground/relay-rs/compare/v0.14.2...v0.14.2
+
 [0.14.1]: https://github.com/rust-playground/relay-rs/compare/v0.14.0...v0.14.1
+
 [0.14.0]: https://github.com/rust-playground/relay-rs/compare/v0.13.0...v0.14.0
+
 [0.13.0]: https://github.com/rust-playground/relay-rs/compare/v0.12.1...v0.13.0
+
 [0.12.1]: https://github.com/rust-playground/relay-rs/compare/v0.12.0...v0.12.1
+
 [0.12.0]: https://github.com/rust-playground/relay-rs/compare/v0.11.0...v0.12.0
+
 [0.11.0]: https://github.com/rust-playground/relay-rs/compare/v0.10.0...v0.11.0
+
 [0.10.0]: https://github.com/rust-playground/relay-rs/compare/v0.9.0...v0.10.0
+
 [0.9.0]: https://github.com/rust-playground/relay-rs/compare/v0.8.0...v0.9.0
+
 [0.8.0]: https://github.com/rust-playground/relay-rs/compare/v0.7.0...v0.8.0
+
 [0.7.0]: https://github.com/rust-playground/relay-rs/compare/v0.6.1...v0.7.0
+
 [0.6.1]: https://github.com/rust-playground/relay-rs/compare/v0.6.0...v0.6.1
+
 [0.6.0]: https://github.com/rust-playground/relay-rs/compare/v0.5.3...v0.6.0
+
 [0.5.3]: https://github.com/rust-playground/relay-rs/compare/v0.5.2...v0.5.3
+
 [0.5.2]: https://github.com/rust-playground/relay-rs/compare/v0.5.1...v0.5.2
+
 [0.5.1]: https://github.com/rust-playground/relay-rs/compare/v0.5.0...v0.5.1
+
 [0.5.0]: https://github.com/rust-playground/relay-rs/compare/v0.4.0...v0.5.0
+
 [0.4.0]: https://github.com/rust-playground/relay-rs/compare/v0.3.0...v0.4.0
+
 [0.3.0]: https://github.com/rust-playground/relay-rs/compare/55f4ffca5f12ebce195d6b53cf2d2f92c9036614...v0.3.0
+
 [0.2.0]: https://github.com/rust-playground/relay-rs/commit/55f4ffca5f12ebce195d6b53cf2d2f92c9036614