devops/centos7-python2-end-of-life/

[utterances-bot]

CentOS 7, Ansible and the end of Python 2 - British Geological Survey

Python 2 vs 3 mismatches have been causing problems in ourCentOS 7 server adminstration.We use Ansible for automatic configuration andcontinuous integration deployments.A few of our long-used jobs ...

https://britishgeologicalsurvey.github.io/devops/centos7-python2-end-of-life/

[clarsen]

This was helpful thanks.

I think you also need to install libselinux-python3 since that's what is used when python3 is used, i.e.

- name: Install python 3.6 and pip3
  yum:
    name:
      - python36
      - libselinux-python
      - libselinux-python3
    state: present

[outofcoffee2]

This error is cancer I implemented the solution you have proposed still fails for me

• docker_container:
  recreate: yes
  pull: no
  restart: yes
  keep_volumes: no
  hostname: "{{alias}}"
  name: "{{container_name}}"
  image: someregistry/loadbalancer:latest
  volumes:
  - /var/run/docker.sock:/var/run/docker.sock
  - "{{app_path}}/nginx.conf.json:/config/nginx.conf.json"
  - "{{app_path}}/nginx.template.conf:/config/nginx.template.conf"
  - "{{app_path}}/certs:/etc/ssl"
  ports:
  • "{{vars.LOADBALANCER_HTTP_PORT}}:{{vars.LOADBALANCER_HTTP_PORT}}"
  • "{{vars.LOADBALANCER_HTTPS_PORT}}:{{vars.LOADBALANCER_HTTPS_PORT}}"
    tty: yes
    etc_hosts: "{{vars.DNS}}"
    networks:
  • name: somename
    ipv4_address: "{{vars.IP.loadbalancer}}"
    vars:
    ansible_python_interpreter: /usr/bin/python3

TASK [loadbalancer : docker_container] ****************************************************************************************task path: /vagrant/ansible/roles/loadbalancer/tasks/main.yml:45
fatal: [sandbox2-node-1]: FAILED! => {"changed": false, "msg": "Failed to import the required Python library (Docker SDK for Python: docker (Python >= 2.7) or docker-py (Python 2.6)) on sandbox2-node-1's Python /usr/bin/python3. Please read module documentation and install in the appropriate location, for example via pip install docker or pip install docker-py (Python 2.6).
The error was: No module named 'requests'"}

[volcan01010]

It looks like Ansible is using the correct Python, but that it can't find the requests library. You may need to install it first.

- name: Ensure requests is installed
  pip:
    name:
      - requests
    state: present
    executable: pip3
  vars:
    ansible_python_interpreter: /usr/bin/python3