[DOCS] Update Kibana install docs for security ON by default Beta (#118770) (#119053)

* [DOCS] Update install docs for security ON by default

* Incorporating reviewer feedback and expanding RPM + Debian steps

* Update Debian and RPM enrollment token process

Co-authored-by: Adam Locke <adam.locke@elastic.co>

docs/setup/install/auto-enroll.asciidoc

@@ -0,0 +1,21 @@
+[role="exclude"]
+
+If this is the first time you're starting {kib}, this command generates a 
+unique link in your terminal to enroll your {kib} instance with {es}.
+
+. In your terminal, click the generated link to open {kib} in your browser.
+
+. In your browser, paste the enrollment token that was generated in the terminal 
+when you started {es}, and then click the button to connect your {kib} instance with {es}.
+
+. Log in to {kib} as the `elastic` user with the password that was 
+generated when you started {es}.
+
+[NOTE]
+====
+If you need to reset the password for the `elastic` user or other
+built-in users, run the {ref}/reset-password.html[`elasticsearch-reset-password`] tool. To generate new enrollment tokens for 
+{kib} or {es} nodes, run the
+{ref}/create-enrollment-token.html[`elasticsearch-create-enrollment-token`] tool.
+These tools are available in the {es} `bin` directory.
+====

docs/setup/install/deb.asciidoc

@@ -122,6 +122,30 @@ sudo dpkg -i kibana-{version}-amd64.deb
 
 endif::[]
 
+[[deb-enroll]]
+==== Start {es} and generate an enrollment token for {kib}
+++++
+<titleabbrev>Generate an enrollment token</titleabbrev>
+++++
+
+When you start {es} for the first time, the following security configuration
+occurs automatically:
+
+* Authentication and authorization are enabled, and a password is generated for the `elastic` built-in superuser.
+* Certificates and keys for TLS are generated for the transport and HTTP layer, and TLS is enabled and configured with these keys and certificates.
+
+The password and certificate and keys are output to your terminal.
+
+You can then generate an enrollment token for {kib} with the
+{ref}/create-enrollment-token.html[`elasticsearch-create-enrollment-token`] tool:
+
+[source,sh]
+----
+bin/elasticsearch-create-enrollment-token -s kibana
+----
+
+Start {kib} and enter the enrollment token to securely connect {kib} with {es}.
+
 [[deb-running-systemd]]
 include::systemd.asciidoc[]
 

docs/setup/install/rpm.asciidoc

@@ -115,6 +115,30 @@ sudo rpm --install kibana-{version}-x86_64.rpm
 
 endif::[]
 
+[[rpm-enroll]]
+==== Start {es} and generate an enrollment token for {kib}
+++++
+<titleabbrev>Generate an enrollment token</titleabbrev>
+++++
+
+When you start {es} for the first time, the following security configuration
+occurs automatically:
+
+* Authentication and authorization are enabled, and a password is generated for the `elastic` built-in superuser.
+* Certificates and keys for TLS are generated for the transport and HTTP layer, and TLS is enabled and configured with these keys and certificates.
+
+The password and certificate and keys are output to your terminal.
+
+You can then generate an enrollment token for {kib} with the
+{ref}/create-enrollment-token.html[`elasticsearch-create-enrollment-token`] tool:
+
+[source,sh]
+----
+bin/elasticsearch-create-enrollment-token -s kibana
+----
+
+Start {kib} and enter the enrollment token to securely connect {kib} with {es}.
+
 [[rpm-running-systemd]]
 include::systemd.asciidoc[]
 

docs/setup/install/start-es-and-enroll.asciidoc

@@ -0,0 +1,16 @@
+==== Start {es} and generate an enrollment token for {kib}
+++++
+<titleabbrev>Generate an enrollment token</titleabbrev>
+++++
+
+When you start {es} for the first time, the following security configuration
+occurs automatically:
+
+* {ref}/configuring-stack-security.html#stack-security-certificates[Certificates and keys] for TLS are
+generated for the transport and HTTP layers.
+* The TLS configuration settings are written to `elasticsearch.yml`.
+* A password is generated for the `elastic` user.
+* An enrollment token is generated for {kib}.
+
+You can then start {kib} and enter the enrollment token to securely connect 
+{kib} with {es}. The enrollment token is valid for 30 minutes.

docs/setup/install/systemd.asciidoc

@@ -1,6 +1,6 @@
 ==== Run {kib} with `systemd`
 
-To configure Kibana to start automatically when the system boots up,
+To configure {kib} to start automatically when the system starts,
 run the following commands:
 
 [source,sh]
@@ -9,7 +9,7 @@ sudo /bin/systemctl daemon-reload
 sudo /bin/systemctl enable kibana.service
 --------------------------------------------------
 
-Kibana can be started and stopped as follows:
+{kib} can be started and stopped as follows:
 
 [source,sh]
 --------------------------------------------
@@ -17,6 +17,6 @@ sudo systemctl start kibana.service
 sudo systemctl stop kibana.service
 --------------------------------------------
 
-These commands provide no feedback as to whether Kibana was started
+These commands provide no feedback as to whether {kib} was started
 successfully or not. Log information can be accessed via
-`journalctl -u kibana.service`.
+`journalctl -u kibana.service`.

docs/setup/install/targz-running.asciidoc

@@ -9,3 +9,5 @@ Kibana can be started from the command line as follows:
 
 By default, Kibana runs in the foreground, prints its logs to the
 standard output (`stdout`), and can be stopped by pressing *Ctrl-C*.
+
+include::auto-enroll.asciidoc[]

docs/setup/install/targz.asciidoc

@@ -90,6 +90,8 @@ cd kibana-{version}/ <2>
 
 endif::[]
 
+[[targz-enroll]]
+include::start-es-and-enroll.asciidoc[]
 
 [[targz-running]]
 include::targz-running.asciidoc[]

docs/setup/install/windows-running.asciidoc

@@ -9,3 +9,5 @@ Kibana can be started from the command line as follows:
 
 By default, Kibana runs in the foreground, prints its logs to `STDOUT`,
 and can be stopped by pressing *Ctrl-C*.
+
+include::auto-enroll.asciidoc[]

docs/setup/install/windows.asciidoc

@@ -40,6 +40,9 @@ CD c:\kibana-{version}-windows-x86_64
 
 endif::[]
 
+[[windows-enroll]]
+include::start-es-and-enroll.asciidoc[]
+
 [[windows-running]]
 include::windows-running.asciidoc[]