feat(events): add step to emit events to GCP

[CCFenner]

This adds functionality to emit events to GCP and exposes it as a pipeline step.

It makes use of the trust between Vault and GCP to send messages with a federated token. The messages contain data that follows the CloudEvents specification adapted to the SAP ecosystem and makes use of the cloudevents/sdk-go.

It currently implements pipelinerunStarted and pipelinerunFinishedevents.

[mscudlik]

It seems like it is not possible to provide any publishing options:

• https://cloud.google.com/pubsub/docs/publisher#using-ordering-keys
• https://cloud.google.com/pubsub/docs/flow-control-messages

From my understanding at least the ordering key is required - this is also possible via rest: https://cloud.google.com/pubsub/docs/publisher#rest_1

[CCFenner]

/go-it

[CCFenner]

/it-go

[CCFenner]

/it-go

[sonarcloud[bot]]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
No data about Coverage
No data about Duplication

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