Fixes #531: systemd with molecule Docker containers requires cgroupns set to host and rw.

Author: geerlingguy

molecule/molecule/default/molecule.yml

@@ -12,7 +12,8 @@ platforms:
     image: "geerlingguy/docker-${MOLECULE_DISTRO:-rockylinux8}-ansible:latest"
     command: ""
     volumes:
-      - /sys/fs/cgroup:/sys/fs/cgroup:ro
+      - /sys/fs/cgroup:/sys/fs/cgroup:rw
+    cgroupns_mode: host
     privileged: true
     pre_build_image: true
 provisioner:

tests/orchestration.sh

@@ -9,11 +9,11 @@ pip3 install ansible
 cd orchestration/scripts
 
 # Test Django app installation.
-docker run -d --name app -p 80:80 --privileged -v /sys/fs/cgroup:/sys/fs/cgroup:ro geerlingguy/docker-rockylinux8-ansible
+docker run -d --name app -p 80:80 --privileged -v /sys/fs/cgroup:/sys/fs/cgroup:rw --cgroupns=host geerlingguy/docker-rockylinux8-ansible
 ./app.sh
 
 # Test Django db installation.
-docker run -d --name db -p 3360:3360 --privileged -v /sys/fs/cgroup:/sys/fs/cgroup:ro geerlingguy/docker-rockylinux8-ansible
+docker run -d --name db -p 3360:3360 --privileged -v /sys/fs/cgroup:/sys/fs/cgroup:rw --cgroupns=host geerlingguy/docker-rockylinux8-ansible
 ./db.sh
 
 # Other tests from the book.