Add APM Guide (#2246)

Co-authored-by: Greg Back <1045796+gtback@users.noreply.github.com>

Author: bmorelli25

conf.yaml

@@ -499,7 +499,7 @@ contents:
                   -
                     repo:   elasticsearch-java
                     path:   docs/
-                  - 
+                  -
                     repo:   elasticsearch
                     path:   docs/java-rest/
                   -
@@ -1153,6 +1153,26 @@ contents:
                   -
                     repo:   apm-server
                     path:   CHANGELOG.asciidoc
+              - title:      APM Guide
+                prefix:     guide
+                index:      docs/integrations-index.asciidoc
+                current:    master
+                branches:   [ master ]
+                live:       [ master ]
+                chunk:      2
+                tags:       APM Guide
+                subject:    APM
+                sources:
+                  -
+                    repo:   apm-server
+                    path:   changelogs
+                    exclude_branches:   [ 6.0 ]
+                  -
+                    repo:   apm-server
+                    path:   docs
+                  -
+                    repo:   apm-server
+                    path:   CHANGELOG.asciidoc
               - title:      APM Agents
                 base_dir:   agent
                 sections:

doc_build_aliases.sh

@@ -145,6 +145,8 @@ alias docbldim='$GIT_HOME/docs/build_docs --doc $GIT_HOME/observability-docs/doc
 alias docbldfdg='$GIT_HOME/docs/build_docs --doc $GIT_HOME/observability-docs/docs/en/fleet-developer/index.asciidoc --chunk 2'
 
 # APM
+alias docbldapm='$GIT_HOME/docs/build_docs --doc $GIT_HOME/apm-server/docs/integrations-index.asciidoc --chunk 2'
+
 alias docbldamg='$GIT_HOME/docs/build_docs --doc $GIT_HOME/apm-server/docs/guide/index.asciidoc --chunk 1'
 
 alias docbldamr='$GIT_HOME/docs/build_docs --doc $GIT_HOME/apm-server/docs/index.asciidoc --chunk 1'

shared/attributes.asciidoc

@@ -24,6 +24,7 @@
 :journalbeat-ref:      https://www.elastic.co/guide/en/beats/journalbeat/{branch}
 :ingest-guide:         https://www.elastic.co/guide/en/ingest-management/{branch}
 :fleet-guide:          https://www.elastic.co/guide/en/fleet/{branch}
+:apm-guide-ref:        https://www.elastic.co/guide/en/apm/guide/{branch}
 :apm-get-started-ref:  https://www.elastic.co/guide/en/apm/get-started/{branch}
 :apm-overview-ref-v:   https://www.elastic.co/guide/en/apm/get-started/{branch}
 :apm-overview-ref-70:  https://www.elastic.co/guide/en/apm/get-started/7.0
@@ -260,7 +261,7 @@ Common words and phrases
 :slm-init:                SLM
 :rollup-features:         data rollup features
 :ipm:                     index pattern management
-:ipm-cap:                 Index pattern 
+:ipm-cap:                 Index pattern
 
 :rollup:                     rollup
 :rollup-cap:                 Rollup