CVE-2022-41715: Update our regexp library to fix upstream (bsc#1204023)
CVE-2022-41723: Fixed go issue to avoid quadratic complexity in HPACK decoding (bsc#1208298)
Other non-security bugs fixed and changes in this version update to 2.37.6:
[BUGFIX] TSDB: Turn off isolation for Head compaction to fix a memory leak.
[BUGFIX] TSDB: Fix 'invalid magic number 0' error on Prometheus startup.
[BUGFIX] Agent: Fix validation of flag options and prevent WAL from growing more than desired.
[BUGFIX] Properly close file descriptor when logging unfinished queries.
[BUGFIX] TSDB: In the WAL watcher metrics, expose the type='exemplar' label instead of type='unknown' for exemplar
records.
[BUGFIX] Alerting: Fix Alertmanager targets not being updated when alerts were queued.
[BUGFIX] Hetzner SD: Make authentication files relative to Prometheus config file.
[BUGFIX] Promtool: Fix promtool check config not erroring properly on failures.
[BUGFIX] Scrape: Keep relabeled scrape interval and timeout on reloads.
[BUGFIX] TSDB: Don't increment prometheustsdbcompactionsfailedtotal when context is canceled.
[BUGFIX] TSDB: Fix panic if series is not found when deleting series.
[BUGFIX] TSDB: Increase prometheustsdbmmapchunkcorruptionstotal on out of sequence errors.
[BUGFIX] Uyuni SD: Make authentication files relative to Prometheus configuration file and fix default configuration
values.
[BUGFIX] Fix serving of static assets like fonts and favicon.
[BUGFIX] promtool: Add --lint-fatal option.
[BUGFIX] Changing TotalQueryableSamples from int to int64.
[BUGFIX] tsdb/agent: Ignore duplicate exemplars.
[BUGFIX] TSDB: Fix chunk overflow appending samples at a variable rate.
[BUGFIX] Stop rule manager before TSDB is stopped.
[BUGFIX] Kubernetes SD: Explicitly include gcp auth from k8s.io.
[BUGFIX] Fix OpenMetrics parser to sort uppercase labels correctly.
[BUGFIX] UI: Fix scrape interval and duration tooltip not showing on target page.
[BUGFIX] Tracing/GRPC: Set TLS credentials only when insecure is false.
[BUGFIX] Agent: Fix ID collision when loading a WAL with multiple segments.
[BUGFIX] Remote-write: Fix a deadlock between Batch and flushing the queue.
[BUGFIX] PromQL: Properly return an error from histogramquantile when metrics have the same labelset.
[BUGFIX] UI: Fix bug that sets the range input to the resolution.
[BUGFIX] TSDB: Fix a query panic when memory-snapshot-on-shutdown is enabled.
[BUGFIX] Parser: Specify type in metadata parser errors.
[BUGFIX] Scrape: Fix label limit changes not applying.
[BUGFIX] Remote-write: Fix deadlock between adding to queue and getting batch.
[BUGFIX] TSDB: Fix panic when m-mapping head chunks onto the disk.
[BUGFIX] Azure SD: Fix a regression when public IP Address isn't set.
[BUGFIX] Azure SD: Fix panic when public IP Address isn't set.
[BUGFIX] Remote-write: Fix deadlock when stopping a shard.
[BUGFIX] SD: Fix no such file or directory in K8s SD when not running inside K8s.
[BUGFIX] Promtool: Make exit codes more consistent.
[BUGFIX] Promtool: Fix flakiness of rule testing.
[BUGFIX] Remote-write: Update prometheusremotestoragequeuehighestsenttimestampseconds metric when write
irrecoverably fails.
[BUGFIX] Storage: Avoid panic in BufferedSeriesIterator.
[BUGFIX] TSDB: CompactBlockMetas should produce correct mint/maxt for overlapping blocks.
[BUGFIX] TSDB: Fix logging of exemplar storage size.
[BUGFIX] UI: Fix overlapping click targets for the alert state checkboxes.
[BUGFIX] UI: Fix Unhealthy filter on target page to actually display only Unhealthy targets.
[BUGFIX] UI: Fix autocompletion when expression is empty.
[BUGFIX] TSDB: Fix deadlock from simultaneous GC and write.
[CHANGE] TSDB: Delete *.tmp WAL files when Prometheus starts.
[CHANGE] promtool: Add new flag --lint (enabled by default) for the commands check rules and check config, resulting
in a new exit code (3) for linter errors.
[CHANGE] UI: Classic UI removed.
[CHANGE] Tracing: Migrate from Jaeger to OpenTelemetry based tracing.
[CHANGE] PromQL: Promote negative offset and @ modifer to stable features.
[CHANGE] Web: Promote remote-write-receiver to stable.
[FEATURE] Nomad SD: New service discovery for Nomad built-in service discovery.
[FEATURE] Add lowercase and uppercase relabel action.
[FEATURE] SD: Add IONOS Cloud integration.
[FEATURE] SD: Add Vultr integration.
[FEATURE] SD: Add Linode SD failure count metric.
[FEATURE] Add prometheusready metric.
[FEATURE] Support for automatically setting the variable GOMAXPROCS to the container CPU limit.
Enable with the flag --enable-feature=auto-gomaxprocs.
[FEATURE] PromQL: Extend statistics with total and peak number of samples in a query.
Additionally, per-step statistics are available with --enable-feature=promql-per-step-stats and using
stats=all in the query API. Enable with the flag --enable-feature=per-step-stats.
[FEATURE] Promtool: Add cardinality analysis to check metrics, enabled by flag --extended.
[FEATURE] SD: Enable target discovery in own K8s namespace.
[FEATURE] SD: Add provider ID label in K8s SD.
[FEATURE] Web: Add limit field to the rules API.
[ENHANCEMENT] Kubernetes SD: Allow attaching node labels for endpoint role.
[ENHANCEMENT] PromQL: Optimise creation of signature with/without labels.
[ENHANCEMENT] TSDB: Memory optimizations.
[ENHANCEMENT] TSDB: Reduce sleep time when reading WAL.
[ENHANCEMENT] OAuth2: Add appropriate timeouts and User-Agent header.
[ENHANCEMENT] Add stripDomain to template function.
[ENHANCEMENT] UI: Enable active search through dropped targets.
[ENHANCEMENT] promtool: support matchers when querying label
[ENHANCEMENT] Add agent mode identifier.
[ENHANCEMENT] TSDB: more efficient sorting of postings read from WAL at startup.
[ENHANCEMENT] Azure SD: Add metric to track Azure SD failures.
[ENHANCEMENT] Azure SD: Add an optional resource_group configuration.
[ENHANCEMENT] Kubernetes SD: Support discovery.k8s.io/v1
EndpointSlice (previously only discovery.k8s.io/v1beta1
EndpointSlice was supported).
[ENHANCEMENT] Kubernetes SD: Allow attaching node metadata to discovered pods.
[ENHANCEMENT] OAuth2: Support for using a proxy URL to fetch OAuth2 tokens.
[ENHANCEMENT] Configuration: Add the ability to disable HTTP2.
[ENHANCEMENT] Config: Support overriding minimum TLS version.
[ENHANCEMENT] TSDB: Disable the chunk write queue by default and allow configuration with the experimental flag
--storage.tsdb.head-chunks-write-queue-size.
[ENHANCEMENT] HTTP SD: Add a failure counter.
[ENHANCEMENT] Azure SD: Set Prometheus User-Agent on requests.
[ENHANCEMENT] Uyuni SD: Reduce the number of logins to Uyuni.
[ENHANCEMENT] Scrape: Log when an invalid media type is encountered during a scrape.
[ENHANCEMENT] Scrape: Accept application/openmetrics-text;version=1.0.0 in addition to version=0.0.1.
[ENHANCEMENT] Remote-read: Add an option to not use external labels as selectors for remote read.
[ENHANCEMENT] UI: Optimize the alerts page and add a search bar.
[ENHANCEMENT] UI: Improve graph colors that were hard to see.
[ENHANCEMENT] Config: Allow escaping of $ with $$ when using environment variables with external labels.
[ENHANCEMENT] Remote-write: Avoid allocations by buffering concrete structs instead of interfaces.
[ENHANCEMENT] Remote-write: Log time series details for out-of-order samples in remote write receiver.
[ENHANCEMENT] Remote-write: Shard up more when backlogged.
[ENHANCEMENT] TSDB: Use simpler map key to improve exemplar ingest performance.
[ENHANCEMENT] TSDB: Avoid allocations when popping from the intersected postings heap.
[ENHANCEMENT] TSDB: Make chunk writing non-blocking, avoiding latency spikes in remote-write.