docs: document log-opts for "dual logging" cache

thaJeztah · thaJeztah · commit 2586decba8bd · 2021-04-17T15:14:36.000+02:00
These options are available in Docker 20.10 and up, but were
previously only available in Docker EE, and not documented.

Signed-off-by: Sebastiaan van Stijn &lt;github@gone.nl&gt;
diff --git a/docs/reference/commandline/dockerd.md b/docs/reference/commandline/dockerd.md
@@ -1400,6 +1400,10 @@ This is a full example of the allowed configuration options on Linux:
   "log-driver": "json-file",
   "log-level": "",
   "log-opts": {
+    "cache-disabled": "false",
+    "cache-max-file": "5",
+    "cache-max-size": "20m",
+    "cache-compress": "true",
     "env": "os,customer",
     "labels": "somelabel",
     "max-file": "5",
