[META] Push command

[lucasfcosta]

Summary

This META issue covers the push command: a CLI feature which will allow users to push their monitors directly from the CLI to the Elastic Stack.

High Level Overview

The command would be elastic-synthetics push. Invoking it would:

1. Establish a connection to the specified stack's kibana instance
2. Filter local journeys using existing flags to match only those specified
3. Create individual JS bundles per journey using a dependency resolution library
4. Use the monitor management APIs to create a monitor per journey using those zipped JS bundles

Once pushed to Kibana, Heartbeat would be able to download these journeys and execute them.

Issues

This issue has been broke down into three main parts:

• Agent CLI implementation of the push command (New push command to sync with monitor management #470)
  • DSL Implementation - feat: introduce monitor DSL #493
  • Push Implementation - feat: bundle and push all journeys to kibana #482
• Heartbeat updates to be able to run the pushed journeys - [Heartbeat] Introduce new source for pushed monitors beats#31363
• Kibana API updates to support the push command - [Uptime] Kibana changes in support of suite push kibana#127677
  • API Updates for API Keys to include Kibana roles - Use kibana feature privileges with api key kibana#130918
• https://github.com/elastic/synthetics-dev/issues/119
• Push command final touchup before release  #513
• https://github.com/elastic/infosec/issues/10478 pushed to 8.4

The following changes are also necessary, but out of the main line of work:

• Updating the accepted throttling format for Heartbeat so that the monitor DSL can use it ([Heartbeat] change throttling format for browser monitors  beats#31362)

Docs

• [Synthetics] Document new push feature observability-docs#1906

Related

• A previous discussion on the DSL and monitor ontology
• Uptime - Enable Suites Alerts kibana#123969 (out-of-date, but includes more context)
• Scaffolding a new synthetics project - feat: scaffold a synthetics node project #502

Pending Refinement

[paulb-elastic]

Added https://github.com/elastic/uptime-dev/issues/96 to the above list

[shahzad31]

PR related to API key enhancements needed for push command elastic/kibana#130918

[paulb-elastic]

https://github.com/elastic/infosec/issues/10478 has been pushed to 8.4, so closing this meta as all the other activities for getting project monitors (push) out for 8.3 in beta form, are done.