Add basic documentation about the various types of logs that AMO has (#22702)

docs/conf.py

@@ -52,7 +52,7 @@ master_doc = 'index'
 
 # General information about the project.
 project = u'addons-server'
-copyright = u'2023, Mozilla'
+copyright = u'2024, Mozilla'
 
 # The version info for the project you're documenting, acts as replacement for
 # |version| and |release|, also used in various other places throughout the

docs/index.md

@@ -14,6 +14,7 @@ refers to this project.
 topics/readme_include
 topics/api/index
 topics/development/index
+topics/logs
 topics/remote_addr
 topics/third-party
 topics/blocklist

docs/topics/logs.md

@@ -0,0 +1,36 @@
+# Logs
+
+(logs)=
+
+We have various types of logs with different purposes in AMO. The following
+tables summarize their characteristics:
+
+
+| | `ActivityLog` / `LogEntry` |
+|-| -------------------------- |
+|Type| Database entry |
+|Purpose| Storing information about developers/reviewers/admin actions |
+|Stores IP| Depending on the action |
+|Stores user| Yes, explictly (mandatory) |
+|Retention| A year to forever depending on the action |
+|Access| Redash |
+
+| | [Application logging](./development/logging.md) |
+|-| ----------------------------------------------- |
+|Type| JSON (MozLog [^1]) |
+|Purpose| Tracing specific calls / debugging |
+|Stores IP| Yes |
+|Stores user | Yes, if applicable (automatically for authenticated requests) |
+|Retention| 6 months |
+|Access| [Google Log Explorer](https://mozilla-hub.atlassian.net/wiki/spaces/SRE/pages/27921597/AMO+Dev+Resources#Application-Logs) |
+
+| | CDN logs |
+|-| --------  |
+|Type| HTTP access logs  |
+|Purpose| Generic request logging  |
+|Stores IP| Yes |
+|Stores user| No |
+|Retention| 3 months |
+|Access| Google Cloud Storage Bucket |
+
+[^1]: addons-server and addons-frontend both produce application logs through python `logging` and `pino` respectively, emitting them in the [MozLog format](https://wiki.mozilla.org/Firefox/Services/Logging). That gets sent to our application logging pipeline used by all Firefox services.