Systemd param fail with Error: chdir: No such file or directory: OCI ...

[0b11stan]

Hi, when putting myself on the git branch to try and resolve this issue I came over a new little bug. Using systemd: true results in a failure of the asynchronous creation task for a container.

Versions

molecule 3.4.0 using python 3.9
    ansible:2.11.4
    delegated:3.4.0 from molecule
    podman:1.0.0a2 from molecule_podman requiring collections: containers.podman>=1.7.0 ansible.posix>=1.3.0

How to reproduce

python -m venv venv
source venv/bin/activate
pip install 'molecule[lint]'
pip install git+https://github.com/ansible-community/molecule-podman.git
molecule init role -d podman poc && cd poc
cat > molecule/default/molecule.yml <<EOF
---
dependency:
  name: galaxy
driver:
  name: podman
platforms:
  - name: instance
    image: docker.io/pycontribs/centos:8
    pre_build_image: true
    tty: True
    systemd: true
provisioner:
  name: ansible
verifier:
  name: ansible
EOF
molecule create

What is happening

TASK [Create molecule instance(s)] *********************************************
changed: [localhost] => (item=instance)

TASK [Wait for instance(s) creation to complete] *******************************
failed: [localhost] (item=instance) => {"ansible_job_id": "703631711799.87139", "ansible_loop_var": "item", "attempts": 1, "changed": true, "cmd": ["/usr/bin/podman", "run", "-d", "--name", "instance", "--tty=True", "--hostname=instance", "--systemd=True", "docker.io/pycontribs/centos:8", "bash", "-c", "while true; do sleep 10000; done"], "delta": "0:00:00.155365", "end": "2021-08-29 10:31:19.994517", "finished": 1, "item": {"ansible_job_id": "703631711799.87139", "ansible_loop_var": "item", "changed": true, "failed": false, "finished": 0, "item": {"image": "docker.io/pycontribs/centos:8", "name": "instance", "pre_build_image": true, "systemd": true, "tty": true}, "results_file": "/home/tristan/.ansible_async/703631711799.87139", "started": 1}, "msg": "non-zero return code", "rc": 127, "start": "2021-08-29 10:31:19.839152", "stderr": "Error: chdir: No such file or directory: OCI runtime attempted to invoke a command that was not found", "stderr_lines": ["Error: chdir: No such file or directory: OCI runtime attempted to invoke a command that was not found"], "stdout": "", "stdout_lines": []}

PLAY RECAP *********************************************************************
localhost                  : ok=7    changed=2    unreachable=0    failed=1    skipped=5    rescued=0    ignored=0

What is expected

TASK [Create molecule instance(s)] *********************************************
changed: [localhost] => (item=instance)

TASK [Wait for instance(s) creation to complete] *******************************
FAILED - RETRYING: Wait for instance(s) creation to complete (300 retries left).
changed: [localhost] => (item=instance)

PLAY RECAP *********************************************************************
localhost                  : ok=8    changed=3    unreachable=0    failed=0    skipped=5    rescued=0    ignored=0

[0b11stan]

I looked at /home/tristan/.ansible_async/703631711799.87139 and the following podman command is, indeed, failing:

/usr/bin/podman run -d --name "instance" --tty=True --hostname=instance --systemd=True docker.io/pycontribs/centos:8 bash -c "while true; do sleep 10000; done"

Then I tried to put --systemd=true instead of --systemd=True and it works just fine !
I don't know why podman refuses the case sensitive systemd when he have no problem with the tty arg but it may need a little fix ?

I know we just have to put systemd: 'true' in the molecule.yml but it would be maybe more user-friendly with a fix like this:

From 3e81eaa2594c251fec1ced41572fa4d4b5ca2d6b Mon Sep 17 00:00:00 2001
From: Tristan Pinaudeau <[email protected]>
Date: Sun, 29 Aug 2021 10:50:20 +0200
Subject: [PATCH] fix: systemd argument takes only lowercase

---
 src/molecule_podman/playbooks/create.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/molecule_podman/playbooks/create.yml b/src/molecule_podman/playbooks/create.yml
index cc79f30..9fb416a 100644
--- a/src/molecule_podman/playbooks/create.yml
+++ b/src/molecule_podman/playbooks/create.yml
@@ -166,7 +166,7 @@
         {% if item.ip is defined %}--ip={{ item.ip }}{% endif %}
         {% if item.etc_hosts is defined %}{% for i,k in item.etc_hosts.items() %}{% if i != item.name %}--add-host {{ i }}:{{ k }} {% endif %}{% endfor %}{% endif %}
         {% if item.hostname is defined %}--hostname={{ item.hostname }}{% elif item.name is defined %}--hostname={{ item.name }}{% endif %}
-        {% if item.systemd is defined %}--systemd={{ item.systemd }}{% endif %}
+        {% if item.systemd is defined %}--systemd={{ item.systemd|lower }}{% endif %}
         {{ item.pre_build_image | default(false) | ternary('', 'molecule_local/') }}{{ item.image }}
         {{ (command_directives_dict | default({}))[item.name] | default('') }}
       register: server
--
2.33.0

[sshnaidm]

Yes, podman has such kind of errors, btw worth to create an issue in https://github.com/containers/podman about that.
I think item.systemd|string|lower would be more readable. Can you submit a PR please?

[0b11stan]

Alright, thanks for your comment, I just created the pull request. And here is the podman issue : containers/podman#11387.

[0b11stan]

The following is now working correctly:

python -m venv venv
source venv/bin/activate
pip install 'molecule[lint,podman]'
molecule init role -d podman poc && cd poc
cat > molecule/default/molecule.yml <<EOF
---
dependency:
  name: galaxy
driver:
  name: podman
platforms:
  - name: instance
    image: docker.io/pycontribs/centos:8
    pre_build_image: true
    tty: True
    systemd: true
provisioner:
  name: ansible
verifier:
  name: ansible
EOF
molecule create