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authorAndrew Butcher <abutcher@redhat.com>2016-02-11 20:16:24 -0500
committerAndrew Butcher <abutcher@redhat.com>2016-02-16 14:21:09 -0500
commitcafecf3e0d9b973f43fb9a83b5e3bc8700ee16cb (patch)
tree56c25e165e3b02fce0f9b696c7a5d50235ab187d /roles/openshift_facts
parent5dd58c31d6e3b9254c8d90c7138a62e1d39e2f5f (diff)
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Protected facts.
Diffstat (limited to 'roles/openshift_facts')
-rwxr-xr-xroles/openshift_facts/library/openshift_facts.py109
1 files changed, 89 insertions, 20 deletions
diff --git a/roles/openshift_facts/library/openshift_facts.py b/roles/openshift_facts/library/openshift_facts.py
index 25b9534dd..360033c32 100755
--- a/roles/openshift_facts/library/openshift_facts.py
+++ b/roles/openshift_facts/library/openshift_facts.py
@@ -916,41 +916,75 @@ def apply_provider_facts(facts, provider_facts):
facts['provider'] = provider_facts
return facts
-
-def merge_facts(orig, new, additive_facts_to_overwrite):
+# Disabling pylint too many branches. This function needs refactored
+# but is a very core part of openshift_facts.
+# pylint: disable=too-many-branches
+def merge_facts(orig, new, additive_facts_to_overwrite, protected_facts_to_overwrite):
""" Recursively merge facts dicts
Args:
orig (dict): existing facts
new (dict): facts to update
-
additive_facts_to_overwrite (list): additive facts to overwrite in jinja
'.' notation ex: ['master.named_certificates']
+ protected_facts_to_overwrite (list): protected facts to overwrite in jinja
+ '.' notation ex: ['master.master_count']
Returns:
dict: the merged facts
"""
additive_facts = ['named_certificates']
+ protected_facts = ['ha', 'master_count']
facts = dict()
for key, value in orig.iteritems():
+ # Key exists in both old and new facts.
if key in new:
+ # Continue to recurse if old and new fact is a dictionary.
if isinstance(value, dict) and isinstance(new[key], dict):
+ # Collect the subset of additive facts to overwrite if
+ # key matches. These will be passed to the subsequent
+ # merge_facts call.
relevant_additive_facts = []
- # Keep additive_facts_to_overwrite if key matches
for item in additive_facts_to_overwrite:
if '.' in item and item.startswith(key + '.'):
relevant_additive_facts.append(item)
- facts[key] = merge_facts(value, new[key], relevant_additive_facts)
+
+ # Collect the subset of protected facts to overwrite
+ # if key matches. These will be passed to the
+ # subsequent merge_facts call.
+ relevant_protected_facts = []
+ for item in protected_facts_to_overwrite:
+ if '.' in item and item.startswith(key + '.'):
+ relevant_protected_facts.append(item)
+ facts[key] = merge_facts(value, new[key], relevant_additive_facts, relevant_protected_facts)
+ # Key matches an additive fact and we are not overwriting
+ # it so we will append the new value to the existing value.
elif key in additive_facts and key not in [x.split('.')[-1] for x in additive_facts_to_overwrite]:
- # Fact is additive so we'll combine orig and new.
if isinstance(value, list) and isinstance(new[key], list):
new_fact = []
for item in copy.deepcopy(value) + copy.deepcopy(new[key]):
if item not in new_fact:
new_fact.append(item)
facts[key] = new_fact
+ # Key matches a protected fact and we are not overwriting
+ # it so we will determine if it is okay to change this
+ # fact.
+ elif key in protected_facts and key not in [x.split('.')[-1] for x in protected_facts_to_overwrite]:
+ # The master count (int) can only increase unless it
+ # has been passed as a protected fact to overwrite.
+ if key == 'master_count' and int(value) <= int(new[key]):
+ facts[key] = copy.deepcopy(new[key])
+ else:
+ facts[key] = value
+ # ha (bool) can not change unless it has been passed
+ # as a protected fact to overwrite.
+ if key == 'ha':
+ facts[key] = value
+ # No other condition has been met. Overwrite the old fact
+ # with the new value.
else:
facts[key] = copy.deepcopy(new[key])
+ # Key isn't in new so add it to facts to keep it.
else:
facts[key] = copy.deepcopy(value)
new_keys = set(new.keys()) - set(orig.keys())
@@ -1114,6 +1148,8 @@ class OpenShiftFacts(object):
local_facts (dict): local facts to set
additive_facts_to_overwrite (list): additive facts to overwrite in jinja
'.' notation ex: ['master.named_certificates']
+ protected_facts_to_overwrite (list): protected facts to overwrite in jinja
+ '.' notation ex: ['master.master_count']
Raises:
OpenShiftFactsUnsupportedRoleError:
@@ -1122,7 +1158,10 @@ class OpenShiftFacts(object):
# Disabling too-many-arguments, this should be cleaned up as a TODO item.
# pylint: disable=too-many-arguments
- def __init__(self, role, filename, local_facts, additive_facts_to_overwrite=False, openshift_env=None):
+ def __init__(self, role, filename, local_facts,
+ additive_facts_to_overwrite=None,
+ openshift_env=None,
+ protected_facts_to_overwrite=None):
self.changed = False
self.filename = filename
if role not in self.known_roles:
@@ -1131,27 +1170,41 @@ class OpenShiftFacts(object):
)
self.role = role
self.system_facts = ansible_facts(module)
- self.facts = self.generate_facts(local_facts, additive_facts_to_overwrite, openshift_env)
-
- def generate_facts(self, local_facts, additive_facts_to_overwrite, openshift_env):
+ self.facts = self.generate_facts(local_facts,
+ additive_facts_to_overwrite,
+ openshift_env,
+ protected_facts_to_overwrite)
+
+ def generate_facts(self,
+ local_facts,
+ additive_facts_to_overwrite,
+ openshift_env,
+ protected_facts_to_overwrite):
""" Generate facts
Args:
- local_facts (dict): local_facts for overriding generated
- defaults
+ local_facts (dict): local_facts for overriding generated defaults
additive_facts_to_overwrite (list): additive facts to overwrite in jinja
'.' notation ex: ['master.named_certificates']
-
+ openshift_env (dict): openshift_env facts for overriding generated defaults
+ protected_facts_to_overwrite (list): protected facts to overwrite in jinja
+ '.' notation ex: ['master.master_count']
Returns:
dict: The generated facts
"""
- local_facts = self.init_local_facts(local_facts, additive_facts_to_overwrite, openshift_env)
+ local_facts = self.init_local_facts(local_facts,
+ additive_facts_to_overwrite,
+ openshift_env,
+ protected_facts_to_overwrite)
roles = local_facts.keys()
defaults = self.get_defaults(roles)
provider_facts = self.init_provider_facts()
facts = apply_provider_facts(defaults, provider_facts)
- facts = merge_facts(facts, local_facts, additive_facts_to_overwrite)
+ facts = merge_facts(facts,
+ local_facts,
+ additive_facts_to_overwrite,
+ protected_facts_to_overwrite)
facts['current_config'] = get_current_config(facts)
facts = set_url_facts_if_unset(facts)
facts = set_project_cfg_facts_if_unset(facts)
@@ -1315,13 +1368,20 @@ class OpenShiftFacts(object):
# Disabling too-many-branches. This should be cleaned up as a TODO item.
#pylint: disable=too-many-branches
- def init_local_facts(self, facts=None, additive_facts_to_overwrite=False, openshift_env=None):
+ def init_local_facts(self, facts=None,
+ additive_facts_to_overwrite=None,
+ openshift_env=None,
+ protected_facts_to_overwrite=None):
""" Initialize the provider facts
Args:
facts (dict): local facts to set
additive_facts_to_overwrite (list): additive facts to overwrite in jinja
'.' notation ex: ['master.named_certificates']
+ openshift_env (dict): openshift env facts to set
+ protected_facts_to_overwrite (list): protected facts to overwrite in jinja
+ '.' notation ex: ['master.master_count']
+
Returns:
dict: The result of merging the provided facts with existing
@@ -1347,7 +1407,10 @@ class OpenShiftFacts(object):
elif key not in current_level:
current_level[key] = dict()
current_level = current_level[key]
- facts_to_set = merge_facts(facts_to_set, oo_env_facts, [])
+ facts_to_set = merge_facts(orig=facts_to_set,
+ new=oo_env_facts,
+ additive_facts_to_overwrite=[],
+ protected_facts_to_overwrite=[])
local_facts = get_local_facts_from_file(self.filename)
@@ -1356,7 +1419,10 @@ class OpenShiftFacts(object):
basestring):
facts_to_set[arg] = module.from_json(facts_to_set[arg])
- new_local_facts = merge_facts(local_facts, facts_to_set, additive_facts_to_overwrite)
+ new_local_facts = merge_facts(local_facts,
+ facts_to_set,
+ additive_facts_to_overwrite,
+ protected_facts_to_overwrite)
for facts in new_local_facts.values():
keys_to_delete = []
if isinstance(facts, dict):
@@ -1452,7 +1518,8 @@ def main():
choices=OpenShiftFacts.known_roles),
local_facts=dict(default=None, type='dict', required=False),
additive_facts_to_overwrite=dict(default=[], type='list', required=False),
- openshift_env=dict(default={}, type='dict', required=False)
+ openshift_env=dict(default={}, type='dict', required=False),
+ protected_facts_to_overwrite=dict(default=[], type='list', required=False),
),
supports_check_mode=True,
add_file_common_args=True,
@@ -1462,6 +1529,7 @@ def main():
local_facts = module.params['local_facts']
additive_facts_to_overwrite = module.params['additive_facts_to_overwrite']
openshift_env = module.params['openshift_env']
+ protected_facts_to_overwrite = module.params['protected_facts_to_overwrite']
fact_file = '/etc/ansible/facts.d/openshift.fact'
@@ -1469,7 +1537,8 @@ def main():
fact_file,
local_facts,
additive_facts_to_overwrite,
- openshift_env)
+ openshift_env,
+ protected_facts_to_overwrite)
file_params = module.params.copy()
file_params['path'] = fact_file