Refactor upgrade playbook(s)

- Split playbooks into two, one for 3.0 minor upgrades and one for 3.0 to 3.1
  upgrades
- Move upgrade playbooks to common/openshift/cluster/upgrades from adhoc
- Added a byo wrapper playbooks to set the groups based on the byo
  conventions, other providers will need similar playbooks added eventually
- installer wrapper updates for refactored upgrade playbooks
  - call new 3.0 to 3.1 upgrade playbook
  - various fixes for edge cases I hit with a really old config laying
    around.
  - fix output of host facts to show connect_to value.

1 files changed, 154 insertions, 0 deletions

diff --git a/playbooks/common/openshift-cluster/upgrades/library/openshift_upgrade_config.py b/playbooks/common/openshift-cluster/upgrades/library/openshift_upgrade_config.py
new file mode 100755
index 000000000..a6721bb92
--- /dev/null
+++ b/playbooks/common/openshift-cluster/upgrades/library/openshift_upgrade_config.py
@@ -0,0 +1,154 @@
+#!/usr/bin/python
+# -*- coding: utf-8 -*-
+# vim: expandtab:tabstop=4:shiftwidth=4
+
+"""Ansible module for modifying OpenShift configs during an upgrade"""
+
+import os
+import yaml
+
+DOCUMENTATION = '''
+---
+module: openshift_upgrade_config
+short_description: OpenShift Upgrade Config
+author: Jason DeTiberus
+requirements: [ ]
+'''
+EXAMPLES = '''
+'''
+
+def modify_api_levels(level_list, remove, ensure, msg_prepend='',
+                      msg_append=''):
+    """ modify_api_levels """
+    changed = False
+    changes = []
+
+    if not isinstance(remove, list):
+        remove = []
+
+    if not isinstance(ensure, list):
+        ensure = []
+
+    if not isinstance(level_list, list):
+        new_list = []
+        changed = True
+        changes.append("%s created missing %s" % (msg_prepend, msg_append))
+    else:
+        new_list = level_list
+        for level in remove:
+            if level in new_list:
+                new_list.remove(level)
+                changed = True
+                changes.append("%s removed %s %s" % (msg_prepend, level, msg_append))
+
+    for level in ensure:
+        if level not in new_list:
+            new_list.append(level)
+            changed = True
+            changes.append("%s added %s %s" % (msg_prepend, level, msg_append))
+
+    return {'new_list': new_list, 'changed': changed, 'changes': changes}
+
+
+def upgrade_master_3_0_to_3_1(ansible_module, config_base, backup):
+    """Main upgrade method for 3.0 to 3.1."""
+    changes = []
+
+    # Facts do not get transferred to the hosts where custom modules run,
+    # need to make some assumptions here.
+    master_config = os.path.join(config_base, 'master/master-config.yaml')
+
+    master_cfg_file = open(master_config, 'r')
+    config = yaml.safe_load(master_cfg_file.read())
+    master_cfg_file.close()
+
+
+    # Remove unsupported api versions and ensure supported api versions from
+    # master config
+    unsupported_levels = ['v1beta1', 'v1beta2', 'v1beta3']
+    supported_levels = ['v1']
+
+    result = modify_api_levels(config.get('apiLevels'), unsupported_levels,
+                               supported_levels, 'master-config.yaml:', 'from apiLevels')
+    if result['changed']:
+        config['apiLevels'] = result['new_list']
+        changes.append(result['changes'])
+
+    if 'kubernetesMasterConfig' in config and 'apiLevels' in config['kubernetesMasterConfig']:
+        config['kubernetesMasterConfig'].pop('apiLevels')
+        changes.append('master-config.yaml: removed kubernetesMasterConfig.apiLevels')
+
+    # Add proxyClientInfo to master-config
+    if 'proxyClientInfo' not in config['kubernetesMasterConfig']:
+        config['kubernetesMasterConfig']['proxyClientInfo'] = {
+            'certFile': 'master.proxy-client.crt',
+            'keyFile': 'master.proxy-client.key'
+        }
+        changes.append("master-config.yaml: added proxyClientInfo")
+
+    if len(changes) > 0:
+        if backup:
+            # TODO: Check success:
+            ansible_module.backup_local(master_config)
+
+        # Write the modified config:
+        out_file = open(master_config, 'w')
+        out_file.write(yaml.safe_dump(config, default_flow_style=False))
+        out_file.close()
+
+    return changes
+
+
+def upgrade_master(ansible_module, config_base, from_version, to_version, backup):
+    """Upgrade entry point."""
+    if from_version == '3.0':
+        if to_version == '3.1':
+            return upgrade_master_3_0_to_3_1(ansible_module, config_base, backup)
+
+
+def main():
+    """ main """
+    # disabling pylint errors for global-variable-undefined and invalid-name
+    # for 'global module' usage, since it is required to use ansible_facts
+    # pylint: disable=global-variable-undefined, invalid-name,
+    # redefined-outer-name
+    global module
+
+    module = AnsibleModule(
+        argument_spec=dict(
+            config_base=dict(required=True),
+            from_version=dict(required=True, choices=['3.0']),
+            to_version=dict(required=True, choices=['3.1']),
+            role=dict(required=True, choices=['master']),
+            backup=dict(required=False, default=True, type='bool')
+        ),
+        supports_check_mode=True,
+    )
+
+    from_version = module.params['from_version']
+    to_version = module.params['to_version']
+    role = module.params['role']
+    backup = module.params['backup']
+    config_base = module.params['config_base']
+
+    try:
+        changes = []
+        if role == 'master':
+            changes = upgrade_master(module, config_base, from_version,
+                                     to_version, backup)
+
+        changed = len(changes) > 0
+        return module.exit_json(changed=changed, changes=changes)
+
+    # ignore broad-except error to avoid stack trace to ansible user
+    # pylint: disable=broad-except
+    except Exception, e:
+        return module.fail_json(msg=str(e))
+
+# ignore pylint errors related to the module_utils import
+# pylint: disable=redefined-builtin, unused-wildcard-import, wildcard-import
+# import module snippets
+from ansible.module_utils.basic import *
+
+if __name__ == '__main__':
+    main()