Hello,
i want to begin with molecule but the info i find is realy out dated can some help me out how to get started.
i am running my dev envriroment in dev container where i have installed the following packages
- molecule
- molecule-docker
- flake8
- flake8-bugbear
- flake8-docstrings
- flake8-import-order
- flake8-pylint
- pytest
- pytest-testinfra
- docker
- yamllint
i have veriefied if docker is installed in the devcontainer
root@da34f990ccba:/workspaces/awx/networking/mywebapp# docker --version
Docker version 26.1.4, build 5650f9b
same for ansible and molecule
root@da34f990ccba:/workspaces/awx/networking/mywebapp# ansible --version
ansible [core 2.17.3]
config file = None
configured module search path = ['/root/.ansible/plugins/modules', '/usr/share/ansible/plugins/modules']
ansible python module location = /usr/local/lib/python3.10/site-packages/ansible
ansible collection location = /root/.ansible/collections:/usr/share/ansible/collections
executable location = /usr/local/bin/ansible
python version = 3.10.12 (main, Jun 13 2023, 15:51:40) [GCC 8.3.0] (/usr/local/bin/python3)
jinja version = 3.1.4
libyaml = True
root@da34f990ccba:/workspaces/awx/networking/mywebapp# molecule --version
molecule 24.8.0 using python 3.10
ansible:2.17.3
default:24.8.0 from molecule
docker:2.1.0 from molecule_docker requiring collections: community.docker>=3.0.2 ansible.posix>=1.4.0
verified if the drivers are present
root@da34f990ccba:/workspaces/awx/networking/mywebapp# molecule drivers
default
docker
when i run docker image list i see the used images but this does not reflect in the containers.
root@da34f990ccba:/workspaces/awx/networking/mywebapp# docker image list
REPOSITORY TAG IMAGE ID CREATED SIZE
vsc-awx-682cbfca39f2fc364ae70633c3f451640094960dc3abb842c5945f31746c9129 latest 02cb851405e9 6 hours ago 1.66GB
geerlingguy/docker-amazonlinux2-ansible latest b476c6c635f9 35 hours ago 780MB
geerlingguy/docker-debian12-ansible latest b3a517821a96 35 hours ago 1.02GB
root@da34f990ccba:/workspaces/awx/networking/mywebapp# docker container list
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
87d81eb678c8 geerlingguy/docker-amazonlinux2-ansible "/usr/lib/systemd/sy…" 11 minutes ago Up 11 minutes amazonlinux2
da34f990ccba vsc-awx-682cbfca39f2fc364ae70633c3f451640094960dc3abb842c5945f31746c9129 "/bin/sh -c 'echo Co…" About an hour ago Up About an hour nice_wozniak
These should be amazonlinux2 and a debian one
these are my configs i have used
molecule\default\molecule.yml
---
driver:
name: docker
platforms:
- name: amazonlinux2
image: geerlingguy/docker-amazonlinux2-ansible
pre_build_image: true
command: ${MOLECULE_DOCKER_COMMAND:-""}
volumes:
- /sys/fs/cgroup:/sys/fs/cgroup:ro
privileged: true
- name: debian
image: geerlingguy/docker-debian12-ansible
pre_build_image: true
command: ${MOLECULE_DOCKER_COMMAND:-""}
volumes:
- /sys/fs/cgroup:/sys/fs/cgroup:ro
privileged: true
provisioner:
name: ansible
verifier:
name: ansible
lint: |
set -e
yamllint .
ansible-lint .
converge.yml
---
- name: Converge
hosts: all
gather_facts: false
tasks:
- name: Execute main.yml
ansible.builtin.import_role:
name: mywebapp
task\main.yml
---
# tasks file for mywebapp
- name: Install package
ansible.builtin.package:
name: httpd
state: present
- name: Web Content
ansible.builtin.copy:
dest: /var/www/html/index.html
content: |
<html>
<head></head>
<body>
<h2>Ansible</h2>
<hr />
<p>This page is deployed by ansible.</p>
</body>
</html>
- name: Service status
ansible.builtin.service:
name: httpd
state: started
enabled: true
this is the output of converge
`root@da34f990ccba:/workspaces/awx/networking/mywebapp# molecule converge
WARNING Driver docker does not provide a schema.
INFO default scenario test matrix: dependency, create, prepare, converge
INFO Performing prerun with role_name_check=0...
INFO Running default > dependency
WARNING Skipping, missing the requirements file.
WARNING Skipping, missing the requirements file.
INFO Running default > create
WARNING Skipping, instances already created.
INFO Running default > prepare
WARNING Skipping, prepare playbook not configured.
INFO Running default > converge
INFO Sanity checks: 'docker'
PLAY [Converge] ****************************************************************
TASK [mywebapp : Install package] **********************************************
fatal: [debian]: UNREACHABLE! => {"changed": false, "msg": "Failed to create temporary directory. In some cases, you may have been able to authenticate and did not have permissions on the target directory. Consider changing the remote tmp path in ansible.cfg to a path rooted in \"/tmp\", for more error information use -vvv. Failed command was: ( umask 77 && mkdir -p \"` echo ~/.ansible/tmp `\"&& mkdir \"` echo ~/.ansible/tmp/ansible-tmp-1724678439.5787213-24303-157287474604759 `\" && echo ansible-tmp-1724678439.5787213-24303-157287474604759=\"` echo ~/.ansible/tmp/ansible-tmp-1724678439.5787213-24303-157287474604759 `\" ), exited with result 1", "unreachable": true}
An exception occurred during task execution. To see the full traceback, use -vvv. The error was: NoneType: None
fatal: [amazonlinux2]: FAILED! => {"changed": false, "msg": "Could not find a matching action for the \"unknown\" package manager."}
PLAY RECAP *********************************************************************
amazonlinux2 : ok=0 changed=0 unreachable=0 failed=1 skipped=0 rescued=0 ignored=0
debian : ok=0 changed=0 unreachable=1 failed=0 skipped=0 rescued=0 ignored=0
CRITICAL Ansible return code was 4, command was: ansible-playbook --inventory /root/.cache/molecule/mywebapp/default/inventory --skip-tags molecule-notest,notest /workspaces/awx/networking/mywebapp/molecule/default/converge.yml
root@da34f990ccba:/workspaces/awx/networking/mywebapp#
if there are some clear instructions regarding the docker side ths should be helpfull the info i have found now is realy outdated. And the docker way should realy make de development process much faster.
after some fideling around i have solved the issue of the container that is not starting by using the latest tag and give the container read and write permissions.
but if there is any clear info i would love to read it 