Fixed systemd container cant run on cgroup v2 host

Author: xiaoyao9184

.github/workflows/test-molecule.yml

@@ -10,7 +10,7 @@ defaults:
     working-directory: 'ansible-role-docker'
 jobs:
   build:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-20.04
     strategy:
       fail-fast: false
       max-parallel: 4

molecule/centos7/molecule.yml

@@ -16,11 +16,10 @@ platforms:
     pre_build_image: false
     privileged: true
     command: /usr/sbin/init
-    # tmpfs:
-    #   - /run
-    #   - /tmp
-    volumes:
-      - /sys/fs/cgroup:/sys/fs/cgroup:ro
+    tmpfs:
+      - /run
+      - /run/lock
+      - /sys/fs/cgroup
 provisioner:
   name: ansible
   playbooks:

molecule/centos8/molecule.yml

@@ -16,11 +16,10 @@ platforms:
     pre_build_image: false
     privileged: true
     command: /usr/sbin/init
-    # tmpfs:
-    #   - /run
-    #   - /tmp
-    volumes:
-      - /sys/fs/cgroup:/sys/fs/cgroup:ro
+    tmpfs:
+      - /run
+      - /run/lock
+      - /sys/fs/cgroup
 provisioner:
   name: ansible
   playbooks:

molecule/debian10/molecule.yml

@@ -15,11 +15,10 @@ platforms:
     image: jrei/systemd-debian:10
     privileged: true
     command: /lib/systemd/systemd
-    # tmpfs:
-    #   - /run
-    #   - /tmp
-    volumes:
-      - /sys/fs/cgroup:/sys/fs/cgroup:ro
+    tmpfs:
+      - /run
+      - /run/lock
+      - /sys/fs/cgroup
 provisioner:
   name: ansible
   playbooks:

molecule/debian9/molecule.yml

@@ -16,11 +16,10 @@ platforms:
     pre_build_image: false
     privileged: true
     command: /lib/systemd/systemd
-    # tmpfs:
-    #   - /run
-    #   - /tmp
-    volumes:
-      - /sys/fs/cgroup:/sys/fs/cgroup:ro
+    tmpfs:
+      - /run
+      - /run/lock
+      - /sys/fs/cgroup
 provisioner:
   name: ansible
   playbooks:

molecule/ubuntu1604/molecule.yml

@@ -15,11 +15,10 @@ platforms:
     image: jrei/systemd-ubuntu:16.04
     privileged: true
     command: /lib/systemd/systemd
-    # tmpfs:
-    #   - /run
-    #   - /tmp
-    volumes:
-      - /sys/fs/cgroup:/sys/fs/cgroup:ro
+    tmpfs:
+      - /run
+      - /run/lock
+      - /sys/fs/cgroup
 provisioner:
   name: ansible
   playbooks:

molecule/ubuntu1804/molecule.yml

@@ -15,11 +15,10 @@ platforms:
     image: jrei/systemd-ubuntu:18.04
     privileged: true
     command: /lib/systemd/systemd
-    # tmpfs:
-    #   - /run
-    #   - /tmp
-    volumes:
-      - /sys/fs/cgroup:/sys/fs/cgroup:ro
+    tmpfs:
+      - /run
+      - /run/lock
+      - /sys/fs/cgroup
 provisioner:
   name: ansible
   playbooks:

molecule/ubuntu2004/molecule.yml

@@ -15,11 +15,10 @@ platforms:
     image: jrei/systemd-ubuntu:20.04
     privileged: true
     command: /lib/systemd/systemd
-    # tmpfs:
-    #   - /run
-    #   - /tmp
-    volumes:
-      - /sys/fs/cgroup:/sys/fs/cgroup:ro
+    tmpfs:
+      - /run
+      - /run/lock
+      - /sys/fs/cgroup
 provisioner:
   name: ansible
   playbooks: