Sync with upstream v3.0

.github/ISSUE_TEMPLATE/config.yml

@@ -1,4 +1,4 @@
-blank_issues_enabled: false
+blank_issues_enabled: true
 contact_links:
   - name: Prometheus Community Support
     url: https://prometheus.io/community/

.github/workflows/container_description.yml

@@ -18,7 +18,7 @@ jobs:
     if: github.repository_owner == 'prometheus' || github.repository_owner == 'prometheus-community' # Don't run this workflow on forks.
     steps:
       - name: git checkout
-        uses: actions/checkout@a5ac7e51b41094c92402da3b24376905380afc29 # v4.1.6
+        uses: actions/checkout@d632683dd7b4114ad314bca15554477dd762a938 # v4.2.0
       - name: Set docker hub repo name
         run: echo "DOCKER_REPO_NAME=$(make docker-repo-name)" >> $GITHUB_ENV
       - name: Push README to Dockerhub
@@ -40,7 +40,7 @@ jobs:
     if: github.repository_owner == 'prometheus' || github.repository_owner == 'prometheus-community' # Don't run this workflow on forks.
     steps:
       - name: git checkout
-        uses: actions/checkout@a5ac7e51b41094c92402da3b24376905380afc29 # v4.1.6
+        uses: actions/checkout@d632683dd7b4114ad314bca15554477dd762a938 # v4.2.0
       - name: Set quay.io org name
         run: echo "DOCKER_REPO=$(echo quay.io/${GITHUB_REPOSITORY_OWNER} | tr -d '-')" >> $GITHUB_ENV
       - name: Set quay.io repo name

.github/workflows/test.yml

@@ -21,11 +21,6 @@ jobs:
       - name: Checkout Repo
         uses: actions/checkout@v4
 
-      # This file would normally be created by `make assets`, here we just
-      #  mock it because the file is required for the tests to pass.
-      - name: Mock building of necessary react file
-        run: mkdir web/ui/static/react && touch web/ui/static/react/index.html
-
       - name: Run Tests
         run: GOOPTS=-tags=${{ matrix.buildtags }} make common-test
 

.gitignore

@@ -22,7 +22,7 @@ benchmark.txt
 /documentation/examples/remote_storage/example_write_adapter/example_write_adapter
 
 npm_licenses.tar.bz2
-/web/ui/static/react
+/web/ui/static
 
 /vendor
 /.build

.golangci.yml

@@ -23,6 +23,7 @@ linters:
     - usestdlibvars
     - whitespace
     - loggercheck
+    - sloglint
 
 issues:
   max-issues-per-linter: 0
@@ -78,7 +79,9 @@ linters-settings:
           - pkg: "github.com/stretchr/testify/assert"
             desc: "Use github.com/stretchr/testify/require instead of github.com/stretchr/testify/assert"
           - pkg: "github.com/go-kit/kit/log"
-            desc: "Use github.com/go-kit/log instead of github.com/go-kit/kit/log"
+            desc: "Use log/slog instead of github.com/go-kit/kit/log"
+          - pkg: "github.com/go-kit/log"
+            desc: "Use log/slog instead of github.com/go-kit/log"
           - pkg: "io/ioutil"
             desc: "Use corresponding 'os' or 'io' functions instead."
           - pkg: "regexp"
@@ -100,8 +103,6 @@ linters-settings:
       - (net/http.ResponseWriter).Write
       # No need to check for errors on server's shutdown.
       - (*net/http.Server).Shutdown
-      # Never check for logger errors.
-      - (github.com/go-kit/log.Logger).Log
       # Never check for rollback errors as Rollback() is called when a previous error was detected.
       - (github.com/prometheus/prometheus/storage.Appender).Rollback
   goimports:
@@ -153,14 +154,4 @@ linters-settings:
     disable:
       - float-compare
       - go-require
-    enable:
-      - bool-compare
-      - compares
-      - empty
-      - error-is-as
-      - error-nil
-      - expected-actual
-      - len
-      - require-error
-      - suite-dont-use-pkg
-      - suite-extra-assert-call
+    enable-all: true

.promu.yml

@@ -28,8 +28,6 @@ tarball:
     # Whenever there are new files to include in the tarball,
     # remember to make sure the new files will be generated after `make build`.
     files:
-        - consoles
-        - console_libraries
         - documentation/examples/prometheus.yml
         - LICENSE
         - NOTICE

CHANGELOG.md

@@ -2,12 +2,100 @@
 
 ## unreleased
 
-* [BUGFIX] PromQL: Only return "possible non-counter" annotation when `rate` returns points. #14910
-* [FEATURE] OTLP receiver: Add new option `otlp.promote_resource_attributes`, for any OTel resource attributes that should be promoted to metric labels. #14200
-* [ENHANCEMENT] OTLP receiver: Warn when encountering exponential histograms with zero count and non-zero sum. #14706
-* [BUGFIX] tsdb/wlog.Watcher.readSegmentForGC: Only count unknown record types against record_decode_failures_total metric. #14042
-* [ENHANCEMENT] OTLP: During translation, check for context cancellation/timeout. #654
+* [CHANGE] Scraping: Remove implicit fallback to the Prometheus text format in case of invalid/missing Content-Type and fail the scrape instead. Add ability to specify a `fallback_scrape_protocol` in the scrape config. #15136
+* [CHANGE] Remote-write: default enable_http2 to false. #15219
+* [CHANGE] Scraping: normalize "le" and "quantile" label values upon ingestion. #15164
+* [CHANGE] Scraping: config `scrape_classic_histograms` was renamed to `always_scrape_classic_histograms`. #15178
+* [CHANGE] Config: remove expand-external-labels flag, expand external labels env vars by default. #14657
+* [CHANGE] Disallow configuring AM with the v1 api. #13883
+* [ENHANCEMENT] Scraping, rules: handle targets reappearing, or rules moving group, when out-of-order is enabled. #14710
+* [ENHANCEMENT] Tools: add debug printouts to promtool rules unit testing #15196
+* [ENHANCEMENT] Scraping: support Created-Timestamp feature on native histograms. #14694
 * [ENHANCEMENT] OTLP receiver: If the feature flag `--created-timestamp-zero-ingestion` is true, convert OTel start timestamps to Prometheus zero samples. #14759
+* [BUGFIX] PromQL: Fix stddev+stdvar aggregations to always ignore native histograms. #14941
+* [BUGFIX] PromQL: Fix stddev+stdvar aggregations to treat Infinity consistently. #14941
+
+## 3.0.0-beta.1 / 2024-10-09
+
+* [CHANGE] regexp `.` now matches all characters (performance improvement). #14505
+* [CHANGE] `holt_winters` is now called `double_exponential_smoothing` and moves behind the [experimental-promql-functions feature flag](https://prometheus.io/docs/prometheus/latest/feature_flags/#experimental-promql-functions). #14930
+* [CHANGE] API: The OTLP receiver endpoint can now be enabled using `--web.enable-otlp-receiver` instead of `--enable-feature=otlp-write-receiver`. #14894
+* [CHANGE] Prometheus will not add or remove port numbers from the target address. `no-default-scrape-port` feature flag removed. #14160
+* [CHANGE] Logging: the format of log lines has changed a little, along with the adoption of Go's Structured Logging package. #14906
+* [CHANGE] Don't create extra `_created` timeseries if feature-flag `created-timestamp-zero-ingestion' is enabled. #14738
+* [CHANGE] Float literals and time durations being the same is now a stable fetaure. #15111
+* [ENHANCEMENT] UI: Many fixes and improvements. #14898, #14899, #14907, #14908, #14912, #14913, #14914, #14931, #14940, #14945, #14946, #14972, #14981, #14982, #14994, #15096
+* [ENHANCEMENT] UI: Web UI now displays notifications, e.g. when starting up and shutting down. #15082
+* [ENHANCEMENT] PromQL: Introduce exponential interpolation for native histograms. #14677
+* [ENHANCEMENT] TSDB: Add support for ingestion of out-of-order native histogram samples. #14850, #14546
+* [ENHANCEMENT] Alerts: remove metrics for removed Alertmanagers. #13909
+* [ENHANCEMENT] Kubernetes SD: Support sidecar containers in endpoint discovery. #14929
+* [ENHANCEMENT] Consul SD: Support catalog filters. #11224
+* [PERF] TSDB: Parallelize deletion of postings after head compaction. #14975
+* [PERF] TSDB: Chunk encoding: shorten some write sequences. #14932
+* [PERF] TSDB: Grow postings by doubling. #14721
+* [PERF] Relabeling: Optimize adding a constant label pair. #12180
+* [BUGFIX] Scraping: Unit was missing when using protobuf format. #15095
+* [BUGFIX] PromQL: Only return "possible non-counter" annotation when `rate` returns points. #14910
+* [BUGFIX] TSDB: Chunks could have one unnecessary zero byte at the end. #14854
+* [BUGFIX] "superfluous response.WriteHeader call" messages in log. #14884
+* [BUGFIX] PromQL: Unary negation of native histograms. #14821
+* [BUGFIX] PromQL: Handle stale marker in native histogram series (e.g. if series goes away and comes back). #15025
+* [BUGFIX] Autoreload: Reload invalid yaml files. #14947
+
+## 3.0.0-beta.0 / 2024-09-05
+
+Release 3.0.0-beta.0 includes new features such as a brand new UI and UTF-8 support enabled by default. As a new major version, several breaking changes are introduced. The breaking changes are mainly around the removal of deprecated feature flags and CLI arguments, and the full list can be found below. Most users should be able to try this release out of the box without any configuration changes.
+
+As is traditional with a beta release, we do **not** recommend users install 3.0.0-beta on critical production systems, but we do want everyone to test it out and find bugs.
+
+* [CHANGE] UI: The old web UI has been replaced by a completely new one that is less cluttered and adds a few new features (PromLens-style tree view, better metrics explorer, "Explain" tab). However, it is still missing some features of the old UI (notably, exemplar display and heatmaps). To switch back to the old UI, you can use the feature flag `--enable-feature=old-ui` for the time being. #14872
+* [CHANGE] PromQL: Range selectors and the lookback delta are now left-open, i.e. a sample coinciding with the lower time limit is excluded rather than included. #13904
+* [CHANGE] Kubernetes SD: Remove support for `discovery.k8s.io/v1beta1` API version of EndpointSlice. This version is no longer served as of Kubernetes v1.25. #14365
+* [CHANGE] Kubernetes SD: Remove support for `networking.k8s.io/v1beta1` API version of Ingress. This version is no longer served as of Kubernetes v1.22. #14365
+* [CHANGE] UTF-8: Enable UTF-8 support by default. Prometheus now allows all UTF-8 characters in metric and label names. The corresponding `utf8-name` feature flag has been removed. #14705
+* [CHANGE] Console: Remove example files for the console feature. Users can continue using the console feature by supplying their own JavaScript and templates. #14807
+* [CHANGE] SD: Enable the new service discovery manager by default. This SD manager does not restart unchanged discoveries upon reloading. This makes reloads faster and reduces pressure on service discoveries' sources. The corresponding `new-service-discovery-manager` feature flag has been removed. #14770
+* [CHANGE] Agent mode has been promoted to stable. The feature flag `agent` has been removed. To run Prometheus in Agent mode, use the new `--agent` cmdline arg instead. #14747
+* [CHANGE] Remove deprecated `remote-write-receiver`,`promql-at-modifier`, and `promql-negative-offset` feature flags. #13456, #14526
+* [CHANGE] Remove deprecated `storage.tsdb.allow-overlapping-blocks`, `alertmanager.timeout`, and `storage.tsdb.retention` flags. #14640, #14643
+* [ENHANCEMENT] Move AM discovery page from "Monitoring status" to "Server status". #14875
+* [FEATURE] Support config reload automatically - feature flag `auto-reload-config`. #14769
+* [BUGFIX] Scrape: Do not override target parameter labels with config params. #11029
+
+## 2.55.0 / 2024-10-22
+
+* [FEATURE] PromQL: Add experimental `info` function. #14495
+* [FEATURE] Support UTF-8 characters in label names - feature flag `utf8-names`. #14482, #14880, #14736, #14727
+* [FEATURE] Scraping: Add the ability to set custom `http_headers` in config. #14817
+* [FEATURE] Scraping: Support feature flag `created-timestamp-zero-ingestion` in OpenMetrics. #14356, #14815
+* [FEATURE] Scraping: `scrape_failure_log_file` option to log failures to a file. #14734
+* [FEATURE] OTLP receiver: Optional promotion of resource attributes to series labels. #14200
+* [FEATURE] Remote-Write: Support Google Cloud Monitoring authorization. #14346
+* [FEATURE] Promtool: `tsdb create-blocks` new option to add labels. #14403
+* [FEATURE] Promtool: `promtool test` adds `--junit` flag to format results. #14506
+* [FEATURE] TSDB: Add `delayed-compaction` feature flag, for people running many Prometheus to randomize timing. #12532
+* [ENHANCEMENT] OTLP receiver: Warn on exponential histograms with zero count and non-zero sum. #14706
+* [ENHANCEMENT] OTLP receiver: Interrupt translation on context cancellation/timeout. #14612
+* [ENHANCEMENT] Remote Read client: Enable streaming remote read if the server supports it. #11379
+* [ENHANCEMENT] Remote-Write: Don't reshard if we haven't successfully sent a sample since last update. #14450
+* [ENHANCEMENT] PromQL: Delay deletion of `__name__` label to the end of the query evaluation. This is **experimental** and enabled under the feature-flag `promql-delayed-name-removal`. #14477
+* [ENHANCEMENT] PromQL: Experimental `sort_by_label` and `sort_by_label_desc` sort by all labels when label is equal. #14655, #14985
+* [ENHANCEMENT] PromQL: Clarify error message logged when Go runtime panic occurs during query evaluation. #14621
+* [ENHANCEMENT] PromQL: Use Kahan summation for better accuracy in `avg` and `avg_over_time`. #14413
+* [ENHANCEMENT] Tracing: Improve PromQL tracing, including showing the operation performed for aggregates, operators, and calls. #14816
+* [ENHANCEMENT] API: Support multiple listening addresses. #14665
+* [ENHANCEMENT] TSDB: Backward compatibility with upcoming index v3. #14934
+* [PERF] TSDB: Query in-order and out-of-order series together. #14354, #14693, #14714, #14831, #14874, #14948, #15120
+* [PERF] TSDB: Streamline reading of overlapping out-of-order head chunks. #14729
+* [BUGFIX] PromQL: make sort_by_label stable. #14985
+* [BUGFIX] SD: Fix dropping targets (with feature flag `new-service-discovery-manager`). #13147
+* [BUGFIX] SD: Stop storing stale targets (with feature flag `new-service-discovery-manager`). #13622
+* [BUGFIX] Scraping: exemplars could be dropped in protobuf scraping. #14810
+* [BUGFIX] Remote-Write: fix metadata sending for experimental Remote-Write V2. #14766
+* [BUGFIX] Remote-Write: Return 4xx not 5xx when timeseries has duplicate label. #14716
+* [BUGFIX] Experimental Native Histograms: many fixes for incorrect results, panics, warnings. #14513, #14575, #14598, #14609, #14611, #14771, #14821
+* [BUGFIX] TSDB: Only count unknown record types in `record_decode_failures_total` metric. #14042
 
 ## 2.54.1 / 2024-08-27
 
@@ -106,7 +194,7 @@ This release changes the default for GOGC, the Go runtime control for the trade-
 * [ENHANCEMENT] TSDB: Pause regular block compactions if the head needs to be compacted (prioritize head as it increases memory consumption). #13754
 * [ENHANCEMENT] Observability: Improved logging during signal handling termination. #13772
 * [ENHANCEMENT] Observability: All log lines for drop series use "num_dropped" key consistently. #13823
-* [ENHANCEMENT] Observability: Log chunk snapshot and mmaped chunk replay duration during WAL replay. #13838
+* [ENHANCEMENT] Observability: Log chunk snapshot and mmapped chunk replay duration during WAL replay. #13838
 * [ENHANCEMENT] Observability: Log if the block is being created from WBL during compaction. #13846
 * [BUGFIX] PromQL: Fix inaccurate sample number statistic when querying histograms. #13667
 * [BUGFIX] PromQL: Fix `histogram_stddev` and `histogram_stdvar` for cases where the histogram has negative buckets. #13852
@@ -643,7 +731,7 @@ The binaries published with this release are built with Go1.17.8 to avoid [CVE-2
 
 ## 2.33.0 / 2022-01-29
 
-* [CHANGE] PromQL: Promote negative offset and `@` modifer to stable features. #10121
+* [CHANGE] PromQL: Promote negative offset and `@` modifier to stable features. #10121
 * [CHANGE] Web: Promote remote-write-receiver to stable. #10119
 * [FEATURE] Config: Add `stripPort` template function. #10002
 * [FEATURE] Promtool: Add cardinality analysis to `check metrics`, enabled by flag `--extended`. #10045
@@ -880,7 +968,7 @@ This vulnerability has been reported by Aaron Devaney from MDSec.
 * [ENHANCEMENT] Templating: Enable parsing strings in `humanize` functions. #8682
 * [BUGFIX] UI: Provide errors instead of blank page on TSDB Status Page. #8654 #8659
 * [BUGFIX] TSDB: Do not panic when writing very large records to the WAL. #8790
-* [BUGFIX] TSDB: Avoid panic when mmaped memory is referenced after the file is closed. #8723
+* [BUGFIX] TSDB: Avoid panic when mmapped memory is referenced after the file is closed. #8723
 * [BUGFIX] Scaleway Discovery: Fix nil pointer dereference. #8737
 * [BUGFIX] Consul Discovery: Restart no longer required after config update with no targets. #8766
 
@@ -1806,7 +1894,7 @@ information, read the announcement blog post and migration guide.
 ## 1.7.0 / 2017-06-06
 
 * [CHANGE] Compress remote storage requests and responses with unframed/raw snappy.
-* [CHANGE] Properly ellide secrets in config.
+* [CHANGE] Properly elide secrets in config.
 * [FEATURE] Add OpenStack service discovery.
 * [FEATURE] Add ability to limit Kubernetes service discovery to certain namespaces.
 * [FEATURE] Add metric for discovered number of Alertmanagers.

Dockerfile

@@ -8,21 +8,16 @@ ARG OS="linux"
 COPY .build/${OS}-${ARCH}/prometheus        /bin/prometheus
 COPY .build/${OS}-${ARCH}/promtool          /bin/promtool
 COPY documentation/examples/prometheus.yml  /etc/prometheus/prometheus.yml
-COPY console_libraries/                     /usr/share/prometheus/console_libraries/
-COPY consoles/                              /usr/share/prometheus/consoles/
 COPY LICENSE                                /LICENSE
 COPY NOTICE                                 /NOTICE
 COPY npm_licenses.tar.bz2                   /npm_licenses.tar.bz2
 
 WORKDIR /prometheus
-RUN ln -s /usr/share/prometheus/console_libraries /usr/share/prometheus/consoles/ /etc/prometheus/ && \
-    chown -R nobody:nobody /etc/prometheus /prometheus
+RUN chown -R nobody:nobody /etc/prometheus /prometheus
 
 USER       nobody
 EXPOSE     9090
 VOLUME     [ "/prometheus" ]
 ENTRYPOINT [ "/bin/prometheus" ]
 CMD        [ "--config.file=/etc/prometheus/prometheus.yml", \
-             "--storage.tsdb.path=/prometheus", \
-             "--web.console.libraries=/usr/share/prometheus/console_libraries", \
-             "--web.console.templates=/usr/share/prometheus/consoles" ]
+             "--storage.tsdb.path=/prometheus" ]

MAINTAINERS.md

@@ -2,7 +2,6 @@
 
 General maintainers:
 * Bryan Boreham ([email protected] / @bboreham)
-* Levi Harrison ([email protected] / @LeviHarrison)
 * Ayoub Mrini ([email protected] / @machine424)
 * Julien Pivotto ([email protected] / @roidelapluie)
 
@@ -13,13 +12,12 @@ Maintainers for specific parts of the codebase:
   * `k8s`: Frederic Branczyk (<[email protected]> / @brancz)
 * `documentation`
   * `prometheus-mixin`: Matthias Loibl (<[email protected]> / @metalmatze)
-* `model/histogram` and other code related to native histograms: Björn Rabenstein (<[email protected]> / @beorn7), 
+* `model/histogram` and other code related to native histograms: Björn Rabenstein (<[email protected]> / @beorn7),
 George Krajcsovits (<[email protected]> / @krajorama)
 * `storage`
   * `remote`: Callum Styan (<[email protected]> / @cstyan), Bartłomiej Płotka (<[email protected]> / @bwplotka), Tom Wilkie ([email protected] / @tomwilkie), Nicolás Pazos ( <[email protected]> / @npazosmendez), Alex Greenbank ( <[email protected]> / @alexgreenbank)
-    * `otlptranslator`: Arve Knudsen (<[email protected]> / @aknuds1), Jesús Vázquez (<[email protected]> / @jesusvazquez)
+    * `otlptranslator`: Arthur Silva Sens (<[email protected]> / @ArthurSens), Arve Knudsen (<[email protected]> / @aknuds1), Jesús Vázquez (<[email protected]> / @jesusvazquez)
 * `tsdb`: Ganesh Vernekar (<[email protected]> / @codesome), Bartłomiej Płotka (<[email protected]> / @bwplotka), Jesús Vázquez (<[email protected]> / @jesusvazquez)
-  * `agent`: Robert Fratto (<[email protected]> / @rfratto)
 * `web`
   * `ui`: Julius Volz (<[email protected]> / @juliusv)
     * `module`: Augustin Husson (<[email protected]> @nexucis)