[DOCS-12091] Add OP Secrets Management (#33397)

* [DOCS-12091] Add identifiers for sources (#33370)

* add identifiers for sources

* apply suggestions

* remove DD_OP_

* Add set secrets shortcode (#33432)

* add shortcode

* small edit

* Update layouts/shortcodes/observability_pipelines/set_secrets_intro.en.md

Co-authored-by: Brett Blue <84536271+brett0000FF@users.noreply.github.com>

---------

Co-authored-by: Brett Blue <84536271+brett0000FF@users.noreply.github.com>

* Update env vars for secrets mgmt (#33499)

* dest env vars

* update source env vars

* [DOCS-12091] Add Secrets Management tabs for sources (#33429)

* add sm tabs

* use set secrets intro shortcode

* update key pass

* fix commas

* add descriptions

* update

* fix case

* small edits

* [DOCS-12091] Add identifiers for destinations (#33411)

* update destinations

* revert change

* update set secrets aopensearch

* add set secrets to all destinations

* update descriptions

* Update content/en/observability_pipelines/destinations/amazon_security_lake.md

* Apply suggestions from code review

Co-authored-by: DeForest Richards <56796055+drichards-87@users.noreply.github.com>

* fix gpubsub link

* small edits

---------

Co-authored-by: DeForest Richards <56796055+drichards-87@users.noreply.github.com>

* [DOCS-12091] Update existing pipelines (#33815)

* updates

* add restart

* small edits

* updates for secrets (#33817)

* [DOCS-12091] Update  adv worker config for secrets management (#33825)

* add secrets

* small edit

* small edits

* [DOCS-12091] OP Route to multiple DD orgs (#33541)

* add info

* remove destination type restriction

* add metrics info

* small edits

* add search syntax link

* add images

* fix header

* add warning

* edits

* add limit

* [DOCS-12091] Add Secrets Mgmt doc and update Install the Worker (#33745)

* update platforms

* add linux

* add secrets doc

* update linux

* fix typo

* add secret manager instructions

* Apply suggestions from code review

Co-authored-by: Rosa Trieu <107086888+rtrieu@users.noreply.github.com>

* Apply suggestion from @rtrieu

Co-authored-by: Rosa Trieu <107086888+rtrieu@users.noreply.github.com>

* Apply suggestion from @maycmlee

---------

Co-authored-by: Rosa Trieu <107086888+rtrieu@users.noreply.github.com>

* Add k8s for secrets (#34259)

* add k8s

* add bootstrap file links

* updates

* fix typo

* update region name placeholder

* small updates

* update file methods

* small edits

* update image

---------

Co-authored-by: Brett Blue <84536271+brett0000FF@users.noreply.github.com>
Co-authored-by: DeForest Richards <56796055+drichards-87@users.noreply.github.com>
Co-authored-by: Rosa Trieu <107086888+rtrieu@users.noreply.github.com>

Author: 4 people

config/_default/menus/main.en.yaml

@@ -5850,21 +5850,26 @@ menu:
       url: /observability_pipelines/configuration/install_the_worker/run_multiple_pipelines_on_a_host/
       parent: observability_pipelines_install_the_worker
       weight: 10302
+    - name: Secrets Management
+      url: observability_pipelines/configuration/secrets_management
+      parent: observability_pipelines_configuration
+      identifier: observability_pipelines_secrets_management
+      weight: 104
     - name: Live Capture
       identifier: observability_pipelines/configuration/live_capture/
       url: /observability_pipelines/configuration/live_capture/
       parent: observability_pipelines_configuration
-      weight: 104
+      weight: 105
     - name: Update Existing Pipelines
       url: observability_pipelines/configuration/update_existing_pipelines
       parent: observability_pipelines_configuration
       identifier: observability_pipelines_update_existing_pipelines
-      weight: 105
+      weight: 106
     - name: Access Control
       url: observability_pipelines/configuration/access_control
       parent: observability_pipelines_configuration
       identifier: observability_pipelines_access_control
-      weight: 106
+      weight: 107
     - name: Sources
       url: observability_pipelines/sources/
       parent: observability_pipelines

content/en/observability_pipelines/configuration/install_the_worker/_index.md

@@ -77,6 +77,11 @@ The following is a list of bootstrap options, their related pipeline environment
 : <li style="list-style-type: '- '">The Observability Pipelines Worker cannot route external requests through reverse proxies, such as HAProxy and NGINX.</li>
 : <li style="list-style-type: '- '">The <code>DD_PROXY_HTTP(S)</code> and <code>HTTP(S)_PROXY</code> environment variables need to be already exported in your environment for the Worker to resolve them. They cannot be prepended to the Worker installation script.</li>
 
+`secret`
+: **Pipeline environment variable**: None
+: **Priority**: N/A
+: **Description**: Connects the Worker to your secrets manager. See [Secrets Management][12] for configuration information.
+
 `site`
 : **Pipeline environment variable**: `DD_SITE`
 : **Priority**: `DD_SITE`
@@ -122,3 +127,4 @@ api:
 [9]: https://github.com/DataDog/helm-charts/blob/main/charts/observability-pipelines-worker/values.yaml#L33-L40
 [10]: https://github.com/DataDog/helm-charts/blob/main/charts/observability-pipelines-worker/values.yaml#L303-L329
 [11]: /remote_configuration/#security-considerations
+[12]: /observability_pipelines/configuration/secrets_management/