rbenv

Role for installing rbenv.

Requirements

none

Role Variables

Default variables are:

    rbenv_install: system
    rbenv_version: v1.0.0
    rbenv_force_update: false

    rbenv_default_ruby: 2.4.2
    rbenv_rubies:
      - version: "{{ rbenv_default_ruby }}"

    rbenv_clean_up: false

    rbenv_repo: "https://github.com/rbenv/rbenv.git"

    rbenv_plugins:
      - ruby_build

    rbenv_plugin_vars:
      name: "rbenv-vars"
      repo: "https://github.com/rbenv/rbenv-vars.git"
      version: "master"
    rbenv_plugin_ruby_build:
      name: "ruby-build"
      repo: "https://github.com/rbenv/ruby-build.git"
      version: "master"
      force_update: true
    rbenv_plugin_default_gems:
      name: "rbenv-default-gems"
      repo: "https://github.com/rbenv/rbenv-default-gems.git"
      version: "master"
    rbenv_plugin_installer:
      name: "rbenv-installer"
      repo: "https://github.com/rbenv/rbenv-installer.git"
      version: "master"
    rbenv_plugin_update:
      name: "rbenv-update"
      repo: "https://github.com/rkh/rbenv-update.git"
      version: "master"
    rbenv_plugin_whatis:
      name: "rbenv-whatis"
      repo: "https://github.com/rkh/rbenv-whatis.git"
      version: "master"
    rbenv_plugin_use:
      name: "rbenv-use"
      repo: "https://github.com/rkh/rbenv-use.git"
      version: "master"

    rbenv_root: "{% if rbenv_install == 'system' %}/usr/local/rbenv\
                 {% else %}$HOME/.rbenv{% endif %}"

    rbenv_users: []

    rbenv_extra_depends: []
    rbenv_set_secure_path: yes

Variables to control a system installation (these are not set by default):

    rbenv_owner: 'deploy'
    rbenv_group: 'deploy'

Description:

• rbenv_install - Type of rbenv installation, system or user. Default is system.
• rbenv_version - Version of rbenv to install (tag from rbenv releases page or other valid git object ref)
• rbenv_default_ruby - Which ruby version to be set as global rbenv ruby.
• rbenv_rubies - Versions of ruby to install, see Configuring rubies below.
• rbenv_force_update - Whether existing git checkout should be updated
• rbenv_clean_up - Delete all ruby versions not listed above. Default value is false
• rbenv_repo - Repository with source code of rbenv to install
• rbenv_plugins - List of plugins to install. See configuring plugins below for details.
• rbenv_plugin_{{ name }} - Specification of a plugin. See configuring plugins
• rbenv_root - Install path
• rbenv_users - Array of usernames for multiuser install. User must be present in the system
• rbenv_extra_depends - Array of extra system packages to install before compiling rubies
• rbenv_default_gems - Name of default-gems file for rbenv-default-gems plugin (used only when default_gems is enabled in plugins)
• rbenv_owner - The user owning rbenv_root when rbenv_install is system
• rbenv_group - The group owning rbenv_root when rbenv_install is system
• rbenv_tmpdir - A temporary directory path used for artifacts when installing rubies. Defaults to system's $TMPDIR
• rbenv_set_vars - Set default vars GEM_PATH=$GEM_PATH:$HOME/.gems for 'user' env. Default value is true
• rbenv_set_secure_path - whether rbenv's bin/ directory should be added to secure_path option of sudoers file on system-wide install.

Configuring rubies

The smallest configuration possible to bring the ruby onto the target machine is to specify the default ruby version:

- hosts: ruby_hosts
  roles: timon.rbenv
  vars: { rbenv_default_ruby: 2.4.2 }

This will perform system-wide installation of rbenv (plus ruby_build plugin), build ruby 2.4.2 and configures 2.4.2 to be the default ruby on the host.

To install several ruby versions, you'll need to list them in rbenv_rubies variable. This variable is expected to be a list of hashes that should have at least version attribute. The default is to just include rbenv_default_ruby version:

rbenv_rubies:
  - version: '{{ rbenv_default_ruby }}'

Besides version, you could useenv attribute to specify additional variables for custom build configuration.

rbenv_rubies:
  - version: 2.4.2
    env: { RUBY_CONFIGURE_OPTS: "--enable-shared" }

If certain ruby version requires a patch to be built, use patch attribute to provide URLs to patch(es) to apply. Contents of the URLs listed would be piped by curl to rbenv install --patch command.

Configuring plugins

The list of plugins that should be installed in addition to base rbenv distirbution is specified in rbenv_plugins variable. The definition for each plugin listed in rbenv_plugins is loaded from rbenv_plugin_{{plugin_name}} during role execution.

The default setting is to install ruby_build plugin only. This is what default plugin configuration looks like:

rbenv_plugins:
  - ruby_build
rbenv_plugin_ruby_build:
  name: "ruby-build"
  repo: "https://github.com/rbenv/ruby-build.git"
  version: "master"
  force_update: true

You can opt-in for the following plugins installation, preserved from the original zzet.rbenv role:

Name for rbenv_plugins	Plugin
rbenv_vars	rbenv-vars
default_gems	rbenv-default-gems
installer	rbenv-installer
update	rbenv-update
whatis	rbenv-whatis
use	rbenv-use

You can add your own plugins to the rbenv_plugins list, provided that you also sepecify a plugin definition under rbenv_plugin_{{plugin_name}}. Plugin definition should be a hash with keys name, repo (git url), and version (tag or branch or otherwise valid git object ref). Optional attribute force_update controls if git checkout should be performed when the plugin appears to be installed. The default value for force_update attribute is set to match rbenv_force_update variable.

Example playbook

    - hosts: web
      gather_facts: true # https://github.com/zzet/ansible-rbenv-role/issues/37
      vars:
        rbenv_install: user
        rbenv_version: v0.4.0
        rbenv_default_ruby: 2.0.0-p353
        rbenv_rubies:
        - version: "{{ rbenv_default_ruby }}"
        - version: 2.2.4
          env:
            RUBY_CONFIGURE_OPTS: "--enable-shared"
        - version: 2.3.4
          env:
            RUBY_CONFIGURE_OPTS: "--enable-shared --with-jemalloc"
        rbenv_extra_depends:
          - libjemalloc1
          - libjemalloc-dev
      roles:
        - role: zzet.rbenv
          rbenv_users:
            - user

Dependencies

none

Known issues

When running on Debian with system-wide install, rbenv won't work from sudo -s shells. If you need rbenv commands within sudo shells, use sudo -i. This will launch login shell that will read the rbenv configuration snippet from /etc/profile.d/rbenv.sh (alternatively, you can manually source that file from sudo -s shell).

Ruby prior to 2.3 link to openssl 1.0, which is not present on modern Debian. Starting with ruby 2.3, you can use gem version of openssl, which could be linked against openssl 1.1. If you want to install older rubies on debian, you'll have to override libssl_dev_pkg to be libssl1.0-dev (or install openssl1.0 separately).

License

MIT

Author Information

Andrew Kumanyaev