Install virtual environment and install cassandra-driver inside virtual environment using yml(ansible)

Question

I am learning ansible.

I want to install virtual environment and install cassandra-driver inside venv. Could some one suggest me how to do that?

here is the code I have tried.

- hosts: localhost
  gather_facts: no
  connection: local
  name: install cassendra-driver
  become: true
  become_user: root
  tasks:
       - name: Install the latest version of pip
         apt:
            name: python-pip
            state: latest
            force_apt_get: yes
       - name: Install virtualenv
         pip:
            name:
              - virtualenv
       - name: Install "cassandra-driver"
         pip:
          name:
              - cassandra-driver==3.19.0

Please help me..

score 1 · Accepted Answer · answered Sep 17 '19 at 10:53

1

There are two issues with your playbook:

you are installing pip and cassandra-driver on your local machine but you are trying to install them inside a virtual environment
virtual environenments already contain pip so you don't need to install it

This should fix your issues:

tasks:
- name: Manually create the initial virtualenv
  command: python3 -m venv env
- name: Install "cassandra-driver"
  command: env/bin/python -m pip install cassandra-driver

answered Sep 17 '19 at 10:53

Alassane Ndiaye

4,427
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10
19

Yes, I did. Output looks good. How to check whether venv installed or not? What is the location of venv installed? – Hari Sep 17 '19 at 13:23
Also could you please explain what's happening in above commands? – Hari Sep 17 '19 at 13:32
`python3 -m venv env` creates the environment `env`. – Alassane Ndiaye Sep 18 '19 at 14:04
`env/bin/python -m pip install cassandra-driver` uses the generated environment (`env/bin/python`) to call the `pip` module using the arguments `install cassandra-driver` – Alassane Ndiaye Sep 18 '19 at 14:05
Yes, Got it. Thank you – Hari Sep 18 '19 at 14:17

Install virtual environment and install cassandra-driver inside virtual environment using yml(ansible)

1 Answers1