Separate enroll and run Elastic agent into two steps

[kaiyan-sheng]

When trying to enroll a new agent, the third step shown in the screenshot below actually includes two separate parts: enroll the agent and start the agent.

With the current "Copy command" button, both commands are copied at the same time. But these two commands are not able to run together because enroll has the prompt about overwriting old setting: This will replace your current settings. Do you want to continue? [Y/n]:.

Several potential solutions I can see:

1. use --force to bypass the [Y/n] when enrolling the agent as @jfsiii mentioned in slack.
2. separate enroll and run agent into two steps
3. keep them in one step but make two "Copy command" button.

[elasticmachine]

Pinging @elastic/ingest-management (Team:Ingest Management)

[nchaulet]

@ph @ruflin I know we consider having a command doing both enrollment and run what the status of this command, In my opinion it will be a good option here.

[ruflin]

Agree. @ph I think we discussed to do it for 7.9. But I couldn't find the issue in the Beats repo :-(

[ph]

@ruflin here the issue elastic/beats#17330 :)

[ruflin]

@blakerouse The above also ties into our discussion around a third command.

[ph]

Closing this, replaced by "install" subcommand. elastic/beats#21206