Best way to always run ansible inside a virtualenv on remote machines?
Is there a better way to run ansible inside a virtualenv on the remote machines?
So far the way I can see is to modify the .bashrc file, manually or with ansible itself.
For example:
tasks:
- name: "Enable virtualenv in .bashrc"
lineinfile: dest=.bashrc
line="source {{ PROJECT_HOME }}/venv/bin/activate"
#
# Put tasks that rely on this precondition here (?)
#
# Optionally, disable this later on
- name: "Disable virtualenv in .bashrc"
lineinfile: dest=.bashrc
line="source {{ PROJECT_HOME }}/venv/bin/activate"
state=absent
TODO: Check if the ways it could be done using ssh authorized keys: http://binblog.info/2008/10/20/openssh-going-flexible-with-forced-commands/
Here's a way to enable the virtualenv for an entire play; this example builds the virtualenv in one play, then starts using it the next.
Not sure how clean it is, but it works. I'm just building a bit on what mikepurvis mentioned here.
---
# Build virtualenv
- hosts: all
vars:
PROJECT_HOME: "/tmp/my_test_home"
ansible_python_interpreter: "/usr/local/bin/python"
tasks:
- name: "Create virtualenv"
shell: virtualenv "{{ PROJECT_HOME }}/venv"
creates="{{ PROJECT_HOME }}/venv/bin/activate"
- name: "Copy virtualenv wrapper file"
synchronize: src=pyvenv
dest="{{ PROJECT_HOME }}/venv/bin/pyvenv"
# Use virtualenv
- hosts: all
vars:
PROJECT_HOME: "/tmp/my_test_home"
ansible_python_interpreter: "/tmp/my_test_home/venv/bin/pyvenv"
tasks:
- name: "Guard code, so we are more certain we are in a virtualenv"
shell: echo $VIRTUAL_ENV
register: command_result
failed_when: command_result.stdout == ""
pyenv wrapper file:
#!/bin/bash
source "$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )/activate"
python $@