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author | Russell Teague <rteague@redhat.com> | 2016-12-09 08:27:05 -0500 |
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committer | Russell Teague <rteague@redhat.com> | 2016-12-09 08:27:05 -0500 |
commit | 9947e539f36a0be38b4902b7b55f2fc4023a064f (patch) | |
tree | 9f1a255e9b5e4d39ca18baf28a5e0b27007f0433 /callback_plugins/aa_version_requirement.py | |
parent | 760ea5d197a19a87d624db0a6b110896ab2021b0 (diff) | |
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Resolved lint issues
Diffstat (limited to 'callback_plugins/aa_version_requirement.py')
-rw-r--r-- | callback_plugins/aa_version_requirement.py | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/callback_plugins/aa_version_requirement.py b/callback_plugins/aa_version_requirement.py new file mode 100644 index 000000000..1cca19a45 --- /dev/null +++ b/callback_plugins/aa_version_requirement.py @@ -0,0 +1,60 @@ +#!/usr/bin/python + +""" +This callback plugin verifies the required minimum version of Ansible +is installed for proper operation of the OpenShift Ansible Installer. +The plugin is named with leading `aa_` to ensure this plugin is loaded +first (alphanumerically) by Ansible. +""" +import sys +from ansible import __version__ + +if __version__ < '2.0': + # pylint: disable=import-error,no-name-in-module + # Disabled because pylint warns when Ansible v2 is installed + from ansible.callbacks import display as pre2_display + CallbackBase = object + + def display(*args, **kwargs): + """Set up display function for pre Ansible v2""" + pre2_display(*args, **kwargs) +else: + from ansible.plugins.callback import CallbackBase + from ansible.utils.display import Display + + def display(*args, **kwargs): + """Set up display function for Ansible v2""" + display_instance = Display() + display_instance.display(*args, **kwargs) + + +# Set to minimum required Ansible version +REQUIRED_VERSION = '2.2.0.0' +DESCRIPTION = "Supported versions: %s or newer" % REQUIRED_VERSION + + +def version_requirement(version): + """Test for minimum required version""" + return version >= REQUIRED_VERSION + + +class CallbackModule(CallbackBase): + """ + Ansible callback plugin + """ + + CALLBACK_VERSION = 1.0 + CALLBACK_NAME = 'version_requirement' + + def __init__(self): + """ + Version verification is performed in __init__ to catch the + requirement early in the execution of Ansible and fail gracefully + """ + super(CallbackModule, self).__init__() + + if not version_requirement(__version__): + display( + 'FATAL: Current Ansible version (%s) is not supported. %s' + % (__version__, DESCRIPTION), color='red') + sys.exit(1) |