pip - Ansible: install multiple Python packages on a single session -


one of playbooks contains task installs basic python packages:

---   -     name: "install python packages: {{ python_packages_to_install }}"     sudo: true     pip: name={{ item }}     with_items: python_packages_to_install

with following list of packages:

-   include: python_basics.yaml   vars:      python_packages_to_install:        - virtualenv        - pss        - requests        - comment-builder        - boto        - ansible        - uwsgitop        - gitpull        - ipython

the task works correctly , installs packages:

task: [common | install python packages: ['virtualenv', 'pss', 'requests', 'comment-builder', 'boto', 'ansible', 'uwsgitop', 'gitpull', 'ipython']] *** ok: [push-prod-01] => (item=virtualenv) ok: [push-prod-01] => (item=pss) ok: [push-prod-01] => (item=requests) ok: [push-prod-01] => (item=comment-builder) ok: [push-prod-01] => (item=boto) ok: [push-prod-01] => (item=ansible) ok: [push-prod-01] => (item=uwsgitop) ok: [push-prod-01] => (item=gitpull) changed: [push-prod-01] => (item=ipython)

the problem each line executed using consecutive ssh command, instead of installing packages in single call.

is there way install multiple python packages on ansible pip command?

expanding on ben's answer, can continue preserve package list yaml list have it, , projection single value when pass pip module like:

pip: name="{{ python_packages_to_install | join(' ') }}"

keeps playbook little more maintainable...


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