Use podman as molecule driver

.ansible-lint

@@ -1,3 +1,7 @@
 skip_list:
   - '106'  # Role name {} does not match ``^[a-z][a-z0-9_]+$`` pattern'
   - 'fqcn-builtins'
+  - 'key-order'
+  - 'name[missing]'
+warn_list:
+  - 'deprecated-module'

.github/workflows/ci.yml

@@ -19,13 +19,13 @@ jobs:
     # See:
     #   - https://bugzilla.redhat.com/show_bug.cgi?id=190144
     #   - https://github.com/systemd/systemd/pull/16424
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-20.04
     strategy:
       fail-fast: false
       matrix:
         image:
           - 'centos:7'
-          - 'rockylinux:8.5'
+          - 'rockylinux:8.6'
         scenario:
           - test1
           - test1b
@@ -43,7 +43,6 @@ jobs:
           - test12
           - test13
           - test14
-          - test15
 
         exclude:
           - image: 'centos:7'
@@ -71,15 +70,17 @@ jobs:
 
     steps:
       - name: Check out the codebase.
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
 
       - name: Set up Python 3.
-        uses: actions/setup-python@v2
+        uses: actions/setup-python@v4
         with:
-          python-version: '3.x'
+          python-version: '3.9'
 
       - name: Install test dependencies.
-        run: pip3 install -U ansible molecule[docker] docker yamllint ansible-lint
+        run: |
+          pip3 install -U ansible molecule[podman] yamllint ansible-lint
+          ansible-galaxy collection install containers.podman:>=1.10.1 # otherwise get https://github.com/containers/ansible-podman-collections/issues/428
 
       - name: Display ansible version
         run:  ansible --version
@@ -102,15 +103,17 @@ jobs:
     runs-on: ubuntu-20.04
     steps:
       - name: Check out the codebase.
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
 
       - name: Set up Python 3.
-        uses: actions/setup-python@v2
+        uses: actions/setup-python@v4
         with:
-          python-version: '3.x'
+          python-version: '3.9'
 
       - name: Install test dependencies.
-        run: pip3 install -U ansible molecule[docker] docker yamllint ansible-lint
+        run: |
+          pip3 install -U ansible molecule[podman] yamllint ansible-lint
+          ansible-galaxy collection install containers.podman:>=1.10.1 # otherwise get https://github.com/containers/ansible-podman-collections/issues/428
 
       - name: Display ansible version
         run:  ansible --version

README.md

@@ -6,7 +6,7 @@ This Ansible role installs packages and performs configuration to provide an Ope
 
 As a role it must be used from a playbook, for which a simple example is given below. This approach means it is totally modular with no assumptions about available networks or any cluster features except for some hostname conventions. Any desired cluster fileystem or other required functionality may be freely integrated using additional Ansible roles or other approaches.
 
-The minimal image for nodes is a Centos7 or Centos8 cloud image. These use OpenHPC v1 and v2 respectively. Centos8/OpenHPCv2 is generally preferred as it provides additional functionality for Slurm, compilers, MPI and transport libraries.
+The minimal image for nodes is a CentOS 7 or RockyLinux 8 GenericCloud image. These use OpenHPC v1 and v2 respectively. Centos8/OpenHPCv2 is generally preferred as it provides additional functionality for Slurm, compilers, MPI and transport libraries.
 
 ## Role Variables
 

meta/main.yml

@@ -11,8 +11,7 @@ galaxy_info:
   min_ansible_version: 2.5.0
   platforms:
     - name: EL
-      versions:
-        - 7
+      versions: ['7', '8']
   galaxy_tags:
     - openhpc
     - slurm

molecule/README.md

@@ -22,36 +22,27 @@ test11 | 1            | N                       | As for #5 but then deletes a n
 test12 | 1            | N                       | As for #5 but enabling job completion and testing `sacct -c`
 test13 | 1            | N                       | As for #5 but tests `openhpc_config` variable.
 test14 | 1            | N                       | As for #5 but also tests `extra_nodes` via State=DOWN nodes.
-test15 | 1            | N                       | No compute nodes.
+
 
 # Local Installation & Running
 
 Local installation on a RockyLinux 8.x machine looks like:
 
-    sudo yum install -y gcc python3-pip python3-devel openssl-devel python3-libselinux
-    sudo yum install -y yum-utils
-    sudo yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo
-    sudo yum install -y docker-ce docker-ce-cli containerd.io
-    sudo yum install -y iptables
-    sudo systemctl start docker
-    sudo usermod -aG docker ${USER}
-    sudo usermod -aG docker rocky
-    newgrp docker
-    docker run hello-world # test docker works without sudo
-
+    sudo dnf install -y podman
     sudo yum install -y git
     git clone git@github.com:stackhpc/ansible-role-openhpc.git
     cd ansible-role-openhpc/
-    python3 -m venv venv
+    python3.9 -m venv venv
     . venv/bin/activate
     pip install -U pip
     pip install -r molecule/requirements.txt
+    ansible-galaxy collection install containers.podman:>=1.10.1
 
 Then to run tests, e.g.::
 
     cd ansible-role-openhpc/
     MOLECULE_IMAGE=centos:7 molecule test --all # NB some won't work as require OpenHPC v2.x (-> CentOS 8.x) features - see `.github/workflows/ci.yml`
-    MOLECULE_IMAGE=rockylinux:8.5 molecule test --all
+    MOLECULE_IMAGE=rockylinux:8.6 molecule test --all
 
 **NB:** If the host network has an MTU smaller than 1500 (the docker default), check `molecule.yml` for the relevant test contains `DOCKER_MTU`, then prepend `DOCKER_MTU=<mtu>` to your command. If you have already run molecule you will need to destroy the instances and run `docker network prune` before retrying.
 

molecule/requirements.txt

@@ -1,4 +1,4 @@
 pip
 setuptools
-molecule[docker,lint,ansible]
+molecule[podman,lint,ansible]
 ansible>=2.9.0

molecule/test1/molecule.yml

@@ -1,7 +1,6 @@
 ---
-name: single partition, group is partition
 driver:
-  name: docker
+  name: podman
 platforms:
   - name: testohpc-login-0
     image: ${MOLECULE_IMAGE}
@@ -14,8 +13,7 @@ platforms:
       - /tmp
     volumes:
       - /sys/fs/cgroup:/sys/fs/cgroup:ro
-    networks:
-      - name: net1
+    network: net1
   - name: testohpc-compute-0
     image: ${MOLECULE_IMAGE}
     pre_build_image: true
@@ -27,8 +25,7 @@ platforms:
       - /tmp
     volumes:
       - /sys/fs/cgroup:/sys/fs/cgroup:ro
-    networks:
-      - name: net1
+    network: net1
   - name: testohpc-compute-1
     image: ${MOLECULE_IMAGE}
     pre_build_image: true
@@ -40,8 +37,7 @@ platforms:
       - /tmp
     volumes:
       - /sys/fs/cgroup:/sys/fs/cgroup:ro
-    networks:
-      - name: net1
+    network: net1
 provisioner:
   name: ansible
 verifier:

molecule/test10/molecule.yml

@@ -1,7 +1,6 @@
 ---
-name: single partition, group is partition
 driver:
-  name: docker
+  name: podman
 platforms:
   - name: testohpc-login-0
     image: ${MOLECULE_IMAGE}
@@ -15,8 +14,7 @@ platforms:
       - /tmp
     volumes:
       - /sys/fs/cgroup:/sys/fs/cgroup:ro
-    networks:
-      - name: net1
+    network: net1
   - name: testohpc-compute-0
     image: ${MOLECULE_IMAGE}
     pre_build_image: true
@@ -29,8 +27,7 @@ platforms:
       - /tmp
     volumes:
       - /sys/fs/cgroup:/sys/fs/cgroup:ro
-    networks:
-      - name: net1
+    network: net1
   - name: testohpc-compute-1
     image: ${MOLECULE_IMAGE}
     pre_build_image: true
@@ -43,8 +40,7 @@ platforms:
       - /tmp
     volumes:
       - /sys/fs/cgroup:/sys/fs/cgroup:ro
-    networks:
-      - name: net1
+    network: net1
   - name: testohpc-compute-2
     image: ${MOLECULE_IMAGE}
     pre_build_image: true
@@ -56,8 +52,7 @@ platforms:
       - /tmp
     volumes:
       - /sys/fs/cgroup:/sys/fs/cgroup:ro
-    networks:
-      - name: net1
+    network: net1
 provisioner:
   name: ansible
 verifier:

molecule/test11/molecule.yml

@@ -1,7 +1,6 @@
 ---
-name: single partition, group is partition
 driver:
-  name: docker
+  name: podman
 platforms:
   - name: testohpc-login-0
     image: ${MOLECULE_IMAGE}
@@ -14,8 +13,7 @@ platforms:
       - /tmp
     volumes:
       - /sys/fs/cgroup:/sys/fs/cgroup:ro
-    networks:
-      - name: net1
+    network: net1
   - name: testohpc-compute-0
     image: ${MOLECULE_IMAGE}
     pre_build_image: true
@@ -29,8 +27,7 @@ platforms:
       - /tmp
     volumes:
       - /sys/fs/cgroup:/sys/fs/cgroup:ro
-    networks:
-      - name: net1
+    network: net1
   - name: testohpc-compute-1
     image: ${MOLECULE_IMAGE}
     pre_build_image: true
@@ -43,8 +40,7 @@ platforms:
       - /tmp
     volumes:
       - /sys/fs/cgroup:/sys/fs/cgroup:ro
-    networks:
-      - name: net1
+    network: net1
 provisioner:
   name: ansible
 verifier:

molecule/test12/molecule.yml

@@ -1,7 +1,6 @@
 ---
-name: single partition, group is partition
 driver:
-  name: docker
+  name: podman
 platforms:
   - name: testohpc-login-0
     image: ${MOLECULE_IMAGE}
@@ -14,8 +13,7 @@ platforms:
       - /tmp
     volumes:
       - /sys/fs/cgroup:/sys/fs/cgroup:ro
-    networks:
-      - name: net1
+    network: net1
     docker_networks:
       - name: net1
         driver_options:
@@ -31,8 +29,7 @@ platforms:
       - /tmp
     volumes:
       - /sys/fs/cgroup:/sys/fs/cgroup:ro
-    networks:
-      - name: net1
+    network: net1
   - name: testohpc-compute-1
     image: ${MOLECULE_IMAGE}
     pre_build_image: true
@@ -44,8 +41,7 @@ platforms:
       - /tmp
     volumes:
       - /sys/fs/cgroup:/sys/fs/cgroup:ro
-    networks:
-      - name: net1
+    network: net1
 provisioner:
   name: ansible
 verifier:

molecule/test13/molecule.yml

@@ -1,7 +1,6 @@
 ---
-name: single partition, group is partition
 driver:
-  name: docker
+  name: podman
 platforms:
   - name: testohpc-control
     image: ${MOLECULE_IMAGE}
@@ -14,8 +13,7 @@ platforms:
       - /tmp
     volumes:
       - /sys/fs/cgroup:/sys/fs/cgroup:ro
-    networks:
-      - name: net1
+    network: net1
 
   - name: testohpc-login-0
     image: ${MOLECULE_IMAGE}
@@ -28,8 +26,7 @@ platforms:
       - /tmp
     volumes:
       - /sys/fs/cgroup:/sys/fs/cgroup:ro
-    networks:
-      - name: net1
+    network: net1
 
   - name: testohpc-login-1
     image: ${MOLECULE_IMAGE}
@@ -42,8 +39,7 @@ platforms:
       - /tmp
     volumes:
       - /sys/fs/cgroup:/sys/fs/cgroup:ro
-    networks:
-      - name: net1
+    network: net1
 
   - name: testohpc-compute-0
     image: ${MOLECULE_IMAGE}
@@ -56,8 +52,7 @@ platforms:
       - /tmp
     volumes:
       - /sys/fs/cgroup:/sys/fs/cgroup:ro
-    networks:
-      - name: net1
+    network: net1
   - name: testohpc-compute-1
     image: ${MOLECULE_IMAGE}
     pre_build_image: true
@@ -69,8 +64,7 @@ platforms:
       - /tmp
     volumes:
       - /sys/fs/cgroup:/sys/fs/cgroup:ro
-    networks:
-      - name: net1
+    network: net1
 provisioner:
   name: ansible
   # ansible_args: