Install Rbenv using Ansible - rbenv

Question

I am trying to install Rbenv on my server using Ansible but getting this error:
TASK: [rbenv | create temporary directory] ********************
fatal: [localhost] => Conditional expression must evaluate to True or False: is_failed($rbuild_present)
FATAL: all hosts have already failed -- aborting
My playbook is:
---
- name: rbenv | update rbenv repo
git: repo=git://github.com/sstephenson/rbenv.git
dest=$rbenv_root
version=v0.4.0
- name: rbenv | add rbenv to path
file: path=/usr/local/bin/rbenv
src=${rbenv_root}/bin/rbenv
state=link
- name: rbenv | add rbenv initialization to profile
template: src=templates/rbenv.sh.j2
dest=/etc/profile.d/rbenv.sh
owner=root
group=root
mode=0755
- name: rbenv | check ruby-build installed
command: test -x /usr/local/bin/ruby-build
register: rbuild_present
ignore_errors: yes
- name: rbenv | create temporary directory
shell: mktemp -d
register: tempdir
when_failed: $rbuild_present
- name: rbenv | clone ruby-build repo
git: repo=git://github.com/sstephenson/ruby-build.git
dest=${tempdir.stdout}/ruby-build
when_failed: $rbuild_present
- name: rbenv | install ruby-build
command: ./install.sh
chdir=${tempdir.stdout}/ruby-build
when_failed: $rbuild_present
- name: rbenv | remove temporary directory
file: path=${tempdir.stdout} state=absent
when_failed: $rbuild_present
- name: rbenv | check ruby $ruby_version installed
shell: RBENV_ROOT=${rbenv_root} rbenv versions | grep $ruby_version
register: ruby_installed
ignore_errors: yes
- name: rbenv | install ruby $ruby_version
shell: RBENV_ROOT=${rbenv_root} rbenv install $ruby_version
when_failed: $ruby_installed
- name: rbenv | set global ruby $ruby_version
shell: RBENV_ROOT=${rbenv_root} rbenv global $ruby_version
when_failed: $ruby_installed
- name: rbenv | rehash
shell: RBENV_ROOT=${rbenv_root} rbenv rehash
when_failed: $ruby_installed
- name: rbenv | set gemrc
copy: src=files/gemrc
dest=/root/.gemrc
owner=root
group=root
mode=0644
Any ideas?

Answer 1

I suspect you are using the latest Ansible or > 1.3.x . The when_ syntax has been deprecated, when you run your playbook it should give you a warning. Instead use something like:
when: ruby_installed|failed
or something like:
when: 'not ($ruby_installed)'