fx19880617 opened a new pull request #6271:
URL: https://github.com/apache/incubator-pinot/pull/6271
## Description
Support using environment variables in Pinot table configs with utils to
apply the env variables.
This feature allows users to hide the secret(AWS credential) or config
cluster based configs (Kafka broker list) with a common table config template.
Sample Table config:
```
{
"tableName": "pullRequestMergedEvents",
"tableType": "REALTIME",
"segmentsConfig": {
"timeColumnName": "mergedTimeMillis",
"timeType": "MILLISECONDS",
"retentionTimeUnit": "DAYS",
"retentionTimeValue": "60",
"schemaName": "pullRequestMergedEvents",
"replication": "1",
"replicasPerPartition": "1"
},
"tenants": {},
"tableIndexConfig": {
"loadMode": "MMAP",
"invertedIndexColumns": [
"organization",
"repo"
],
"streamConfigs": {
"streamType": "kafka",
"stream.kafka.consumer.type": "simple",
"stream.kafka.topic.name": "pullRequestMergedEvents",
"stream.kafka.decoder.class.name":
"org.apache.pinot.plugin.stream.kafka.KafkaJSONMessageDecoder",
"stream.kafka.consumer.factory.class.name":
"org.apache.pinot.plugin.stream.kafka20.KafkaConsumerFactory",
"stream.kafka.zk.broker.url": "${AWS_MSK_ZK}",
"stream.kafka.broker.list": "${AWS_MSK_KAFKA}",
"realtime.segment.flush.threshold.time": "12h",
"realtime.segment.flush.threshold.size": "100000",
"stream.kafka.consumer.prop.auto.offset.reset": "smallest"
}
},
"metadata": {
"customConfigs": {}
}
}
```
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