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105 lines
3.5 KiB
Markdown
105 lines
3.5 KiB
Markdown
# Adding a custom Dataset Data Platform
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A Data Platform represents a 3rd party system from which [Metadata Entities](https://datahubproject.io/docs/metadata-modeling/metadata-model/) are ingested from. Each Dataset that is ingested is associated with a single platform, for example MySQL, Snowflake, Redshift, or BigQuery.
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There are some cases in which you may want to add a custom Data Platform identifier for a Dataset. For example,
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you have an internal data system that is not widely available, or you're using a Data Platform that is not natively supported by DataHub.
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To do so, you can either change the default Data Platforms that are ingested into DataHub *prior to deployment time*, or ingest
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a new Data Platform at runtime. You can use the first option if you're able to periodically merge new Data Platforms from the OSS
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repository into your own. It will cause the custom Data Platform to be re-ingested each time you deploy DataHub, meaning that
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your custom Data Platform will persist even between full cleans (nukes) of DataHub.
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## Changing Default Data Platforms
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Simply make a change to the [data_platforms.json](https://github.com/datahub-project/datahub/blob/master/metadata-service/war/src/main/resources/boot/data_platforms.json)
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file to add a custom Data Platform:
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```
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[
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.....
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{
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"urn": "urn:li:dataPlatform:MyCustomDataPlatform",
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"aspect": {
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"name": "My Custom Data Platform",
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"type": "OTHERS",
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"logoUrl": "https://<your-logo-url>"
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}
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}
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]
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```
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## Ingesting Data Platform at runtime
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You can also ingest a Data Platform at runtime using either a file-based ingestion source, or using a normal curl to the
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[GMS Rest.li APIs](https://datahubproject.io/docs/metadata-service#restli-api).
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### Using File-Based Ingestion Recipe
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**Step 1** Define a JSON file containing your custom Data Platform
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```
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// my-custom-data-platform.json
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[
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{
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"auditHeader": null,
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"proposedSnapshot": {
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"com.linkedin.pegasus2avro.metadata.snapshot.DataPlatformSnapshot": {
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"urn": "urn:li:dataPlatform:MyCustomDataPlatform",
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"aspects": [
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{
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"com.linkedin.pegasus2avro.dataplatform.DataPlatformInfo": {
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"datasetNameDelimiter": "/",
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"name": "My Custom Data Platform",
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"type": "OTHERS",
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"logoUrl": "https://<your-logo-url>"
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}
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}
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]
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}
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},
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"proposedDelta": null
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}
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]
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```
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**Step 2**: Define an [ingestion recipe](https://datahubproject.io/docs/metadata-ingestion/#recipes)
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```
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---
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# see https://datahubproject.io/docs/generated/ingestion/sources/file for complete documentation
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source:
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type: "file"
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config:
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filename: "./my-custom-data-platform.json"
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# see https://datahubproject.io/docs/metadata-ingestion/sink_docs/datahub for complete documentation
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sink:
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...
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```
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### Using Rest.li API
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You can also issue a normal curl request to the Rest.li `/entities` API to add a custom Data Platform.
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```
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curl 'http://localhost:8080/entities?action=ingest' -X POST --data '{
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"entity":{
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"value":{
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"com.linkedin.metadata.snapshot.DataPlatformSnapshot":{
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"aspects":[
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{
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"com.linkedin.dataplatform.DataPlatformInfo":{
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"datasetNameDelimiter": "/",
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"name": "My Custom Data Platform",
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"type": "OTHERS",
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"logoUrl": "https://<your-logo-url>"
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}
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}
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],
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"urn":"urn:li:dataPlatform:MyCustomDataPlatform"
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}
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}
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}
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}'
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``` |