Use "dynamic: runtime" instead of strict mapping for internal, TBS, and aggregation indices

[carsonip]

Motivation/summary

Use "dynamic: runtime" instead of strict mapping for internal, TBS, and aggregation indices. Avoid blocking ingestion on unexpected fields.

Checklist

• Update CHANGELOG.asciidoc
• Update package changelog.yml (only if changes to apmpackage have been made)
• Documentation has been updated

How to test these changes

• Create an unexpected field (by dropping a field in the mapping / emitting a new field in apm-server) and make sure it doesn't block ingestion.

Related issues

Closes #10808

[mergify]

This pull request does not have a backport label. Could you fix it @carsonip? 🙏
To fixup this pull request, you need to add the backport labels for the needed
branches, such as:

• backport-7.x is the label to automatically backport to the 7.x branch.
• backport-7./d is the label to automatically backport to the 7./d branch. /d is the digit

NOTE: backport-skip has been added to this pull request.

[apmmachine]

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• Start Time: 2023-06-13T09:38:29.364+0000

• Duration: 6 min 20 sec

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[apmmachine]

📚 Go benchmark report

Diff with the main branch

goos: linux
goarch: amd64
pkg: github.com/elastic/apm-server/internal/agentcfg
cpu: 12th Gen Intel(R) Core(TM) i5-12500
                                  │ build/main/bench.out │             bench.out             │
                                  │        sec/op        │   sec/op     vs base              │
FetchAndAdd/FetchFromCache-12                46.05n ± 0%   46.11n ± 0%  +0.12% (p=0.035 n=6)
geomean                                      67.36n        67.31n       -0.06%

                                  │ build/main/bench.out │             bench.out              │
                                  │         B/op         │    B/op     vs base                │
geomean                                                ²               +0.00%               ²
¹ all samples are equal
² summaries must be >0 to compute geomean

                                  │ build/main/bench.out │             bench.out              │
                                  │      allocs/op       │ allocs/op   vs base                │
geomean                                                ²               +0.00%               ²
¹ all samples are equal
² summaries must be >0 to compute geomean

pkg: github.com/elastic/apm-server/internal/beater/request
                                             │ build/main/bench.out │             bench.out              │
                                             │        sec/op        │    sec/op     vs base              │
ContextResetContentEncoding/deflate_sniff-12           3.870µ ± 10%   3.954µ ±  3%  +2.14% (p=0.024 n=6)
geomean                                                905.5n         901.9n        -0.40%

                                             │ build/main/bench.out │              bench.out               │
                                             │         B/op         │     B/op      vs base                │
geomean                                                           ²                 +0.00%               ²
¹ all samples are equal
² summaries must be >0 to compute geomean

                                             │ build/main/bench.out │             bench.out              │
                                             │      allocs/op       │ allocs/op   vs base                │
geomean                                                           ²               +0.00%               ²
¹ all samples are equal
² summaries must be >0 to compute geomean

pkg: github.com/elastic/apm-server/internal/publish
             │ build/main/bench.out │          bench.out          │
             │        sec/op        │   sec/op    vs base         │

             │ build/main/bench.out │           bench.out            │
             │         B/op         │     B/op       vs base         │

             │ build/main/bench.out │           bench.out           │
             │      allocs/op       │  allocs/op    vs base         │

pkg: github.com/elastic/apm-server/x-pack/apm-server/aggregation/spanmetrics
                 │ build/main/bench.out │          bench.out           │
                 │        sec/op        │   sec/op     vs base         │

                 │ build/main/bench.out │            bench.out            │
                 │         B/op         │     B/op      vs base           │
¹ all samples are equal

                 │ build/main/bench.out │           bench.out           │
                 │      allocs/op       │ allocs/op   vs base           │
¹ all samples are equal

pkg: github.com/elastic/apm-server/x-pack/apm-server/aggregation/txmetrics
                        │ build/main/bench.out │          bench.out           │
                        │        sec/op        │   sec/op     vs base         │

                        │ build/main/bench.out │           bench.out           │
                        │         B/op         │    B/op     vs base           │
¹ all samples are equal

                        │ build/main/bench.out │           bench.out           │
                        │      allocs/op       │ allocs/op   vs base           │
¹ all samples are equal

pkg: github.com/elastic/apm-server/x-pack/apm-server/sampling
               │ build/main/bench.out │             bench.out              │
               │        sec/op        │    sec/op     vs base              │
geomean                  604.6n         607.8n        +0.53%

               │ build/main/bench.out │              bench.out               │
               │         B/op         │     B/op      vs base                │
geomean                             ²                 +0.25%               ²
¹ all samples are equal
² summaries must be >0 to compute geomean

               │ build/main/bench.out │             bench.out              │
               │      allocs/op       │ allocs/op   vs base                │
geomean                             ²               +0.00%               ²
¹ all samples are equal
² summaries must be >0 to compute geomean

pkg: github.com/elastic/apm-server/x-pack/apm-server/sampling/eventstorage
                                            │ build/main/bench.out │              bench.out              │
                                            │        sec/op        │    sec/op      vs base              │
geomean                                              31.09µ           31.43µ        +1.11%

                                            │ build/main/bench.out │               bench.out                │
                                            │         B/op         │      B/op       vs base                │
ReadEvents/json_codec_big_tx/399_events-12           2.109Mi ±  0%    2.109Mi ±  0%  -0.00% (p=0.048 n=6)
geomean                                              31.42Ki          31.42Ki        -0.01%
¹ all samples are equal

                                            │ build/main/bench.out │              bench.out              │
                                            │      allocs/op       │  allocs/op   vs base                │
geomean                                                 144.3         144.3       +0.00%
¹ all samples are equal

report generated with https://pkg.go.dev/golang.org/x/perf/cmd/benchstat

[mergify]

This pull request is now in conflicts. Could you fix it @carsonip? 🙏
To fixup this pull request, you can check out it locally. See documentation: https://help.github.com/articles/checking-out-pull-requests-locally/

git fetch upstream
git checkout -b dynamic-runtime upstream/dynamic-runtime
git merge upstream/main
git push upstream dynamic-runtime

[axw]

Verified with BC2. I listed all component templates matching *apm*@package, and confirmed that apart from metrics-apm.app@package which is expected to have dynamic: true, all others use either dynamic: false or dynamic: runtime