Add support for converting OpenTelemetry Collector components

[rfratto]

#6379 introduced a framework for converting OpenTelemetry Collector components, with initial support for converting otlpreceiver and otlpexporter. There are many more components we need to support conversions for. The following lists track OpenTelemetry Collector components used in both static mode or exclusively used in Flow mode. (Flow mode also uses the components from static mode).

NOTE: Some components may not make sense to convert, but are left in this list for completion. Such components can be ignored and checked off.

Components which do not have a direct Flow component, or are used as an implementation detail in static mode, may be ignored and revisited later during work on converting the tracing subsystem for static mode.

General

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1. Add otelcol as a supported converter format to the CLI and update docs #6697
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2. Create a migration guide for otelcol to flow #6698
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Components used in static mode

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1. Support converting oauth2clientauthextension #6420
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2. Support converting jaegerremotesampling extension #6421
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3. Support converting jaegerreceiver #6422
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4. Support converting zipkinreceiver #6423
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5. Support converting opencensusreceiver #6424
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6. Support converting kafkareceiver #6425
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7. Support converting otlphttpexporter #6428
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8. Support converting loadbalancingexporter #6429
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9. Support converting tailsamplingprocessor #6437
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10. Support converting batchprocessor #6432
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11. Support converting attributesprocessor #6433
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12. Support converting otlpreceiver
13. Support converting otlpexporter
14. Support converting prometheusexporter #6430
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15. Support converting remotewriteexporter #6431
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16. Support converting promsdprocessor #6434
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17. Support converting noopreceiver #6426
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18. Support converting pushreceiver #6427
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19. Support converting spanmetricsprocessor #6435
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20. Support converting automaticloggingprocessor #6436
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21. Support converting servicegraphprocessor #6438
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22. Support converting loggingexporter #6718
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Components used exclusively in flow mode

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1. Support converting basicauthextension #6439
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2. Support converting bearertokenauthextension #6440
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3. Support converting headerssetterextension #6441
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4. Support converting sigv4authextension #6442
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5. Support converting servicegraphconnector #6443
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6. Support converting spanlogsconnector #6444
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7. Support converting spanmetricsconnector #6445
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8. Support converting filterprocessor #6451
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9. Support converting k8sattributesprocessor #6452
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10. Support converting memorylimiterprocessor #6453
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11. Support converting probabilisticsamplerprocessor #6454
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12. Support converting spanprocessor #6455
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13. Support converting transformprocessor #6456
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14. Support converting prometheusreceiver #6458
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15. Support converting vcenterreceiver #6459
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16. Support converting otlpexporter #6448
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[rfratto]

Connectors and extensions may need tweaks to the conversion framework before they're implemented; the low hanging fruits right now are converting receivers/processors/exporters.

[tpaschalis]

Seems like we removed lokiexporter from the list but didn't close the issue, was there any reason behind this or was it unintentional? (I've opened a PR to convert it either way) cc @rfratto

[rfratto]

Seems like we removed lokiexporter from the list but didn't close the issue, was there any reason behind this or was it unintentional? (I've opened a PR to convert it either way) cc @rfratto

I think this was a bug with the task list; I've only removed duplicate issues from the list, but the eventual consistency of it threw me off and I ended up removing the same item twice, which might've accidentally removed other things. I'll add it back, thanks for the heads up 👍