Some tasks in ansible are't executed

[Roman Dryndik]

I'm using ansible for some deployment issues.

I want to do the following:

1. Install virtualenv

2. Activate installed virtual environment

3. Check if I'm in virtual environment

For this purposes I have the following playbook:

    ---

    - hosts: servers

        

      tasks:

        - name: update repository

          apt: update_cache=yes

          sudo: true

    

      tasks:

        - name: install git

          apt: name=git state=latest

          sudo: true

    

      tasks:

        - name: install pip

          apt: name=python-pip state=latest

          sudo: true

    

      tasks:

        - name: installing postgres

          sudo: true

          apt: name=postgresql state=latest

    

      tasks:

        - name: installing libpd-dev

          sudo: true

          apt: name=libpq-dev state=latest

    

      tasks:

        - name: installing psycopg

          sudo: true

          apt: name=python-psycopg2 state=latest

    

      tasks:

        - name: configuration of virtual env

          sudo: true

          pip: name=virtualenvwrapper state=latest

    

      tasks:

        - name: create virtualenv

          command: virtualenv venv

    

      tasks:

        - name: virtualenv activate

          shell: . ~/venv/bin/activate

    

      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 == ""

The problem is that sometimes some tasks are not executed, but they have to... For instance in my case the task:

      tasks:

        - name: create virtualenv

          command: virtualenv venv

Is not executed.

But if I will comment 2 last tasks:

      tasks:

        - name: virtualenv activate

          shell: . ~/venv/bin/activate

    

      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 == ""

The previous one works...

Can't get what I'm doing wrong. Can somebody hint me?

[Michael DeHaan]

You don't put the "tasks:" category in a playbook more than once.

This is a hash data structure, so you are basically clobbering it with another, again and again.

Just let the value of "tasks:" be a YAML list, and only put tasks in there once.

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