docs: Update base image to 22.04 (#12026)

Base image changed since #11778. Update docs accordingly.
elastic · Nov 7, 2023 · a88fd41 · a88fd41
1 parent c2e047f
commit a88fd41
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/docs/shared-docker.asciidoc b/docs/shared-docker.asciidoc
@@ -2,7 +2,7 @@
 ==== Run {beatname_uc} on Docker
 
 Docker images for {beatname_uc} are available from the Elastic Docker
-registry. The base image is https://hub.docker.com/_/ubuntu[ubuntu:20.04].
+registry. The base image is https://hub.docker.com/_/ubuntu[ubuntu:22.04].
 
 A list of all published Docker images and tags is available at
 https://www.docker.elastic.co[www.docker.elastic.co].