docs/docker-compose: Use Ubuntu Focal for testnode

I'm seeing ceph-cm-ansible failures w/ Jammy because of python-apt vs.
python3-apt. We'll revisit this soon.

Signed-off-by: Zack Cerza <zack@redhat.com>

diff --git a/docs/docker-compose/testnode/Dockerfile b/docs/docker-compose/testnode/Dockerfile
index f09ba09dc5838763bab4d6606ae8643f51472e4e..016d32117a65ea29d049b99d80c10f92a5a4a1a3 100644 (file)
--- a/docs/docker-compose/testnode/Dockerfile
+++ b/docs/docker-compose/testnode/Dockerfile
@@ -1,4 +1,4 @@
-FROM ubuntu:latest
+FROM ubuntu:focal
 ENV DEBIAN_FRONTEND=noninteractive
 RUN apt update && \
     apt -y install \
@@ -23,4 +23,4 @@ RUN \
     chmod 700 /home/ubuntu/.ssh && \
     chown -R ubuntu /home/ubuntu
 EXPOSE 22
-ENTRYPOINT /testnode_start.sh
\ No newline at end of file
+ENTRYPOINT /testnode_start.sh