From cea68953a257477198ac262f3f9c8047e4f39498 Mon Sep 17 00:00:00 2001 From: Vadim Rutkovsky Date: Tue, 6 Feb 2018 12:57:21 +0100 Subject: Verify that requested services have schedulable nodes matching the selectors Signed-off-by: Vadim Rutkovsky --- roles/lib_utils/filter_plugins/oo_filters.py | 48 +++++++++++++++++++++++++++- 1 file changed, 47 insertions(+), 1 deletion(-) (limited to 'roles/lib_utils') diff --git a/roles/lib_utils/filter_plugins/oo_filters.py b/roles/lib_utils/filter_plugins/oo_filters.py index c355115b5..ed6bb4c28 100644 --- a/roles/lib_utils/filter_plugins/oo_filters.py +++ b/roles/lib_utils/filter_plugins/oo_filters.py @@ -660,6 +660,50 @@ def map_from_pairs(source, delim="="): return dict(item.split(delim) for item in source.split(",")) +def lib_utils_oo_get_node_labels(source, hostvars=None): + ''' Return a list of labels assigned to schedulable nodes ''' + labels = list() + + # Filter out the unschedulable nodes + for host in source: + if host not in hostvars: + return + node_vars = hostvars[host] + + # All nodes are considered schedulable, + # unless explicitly marked so + schedulable = node_vars.get('openshift_schedulable') + if schedulable is None: + schedulable = True + try: + if not strtobool(str(schedulable)): + # explicitly marked as unschedulable + continue + except ValueError: + # Incorrect value in openshift_schedulable, skip node + continue + + # Get a list of labels from the node + node_labels = node_vars.get('openshift_node_labels') + if node_labels: + labels.append(node_labels) + + return labels + + +def lib_utils_oo_has_no_matching_selector(source, selector=None): + ''' Return True when selector cannot be placed + on nodes with labels from source ''' + # Empty selector means any node + if not selector: + return False + for item in source: + if selector.items() <= item.items(): + # Matching selector found + return False + return True + + class FilterModule(object): """ Custom ansible filter mapping """ @@ -691,5 +735,7 @@ class FilterModule(object): "lib_utils_oo_selector_to_string_list": lib_utils_oo_selector_to_string_list, "lib_utils_oo_filter_sa_secrets": lib_utils_oo_filter_sa_secrets, "lib_utils_oo_l_of_d_to_csv": lib_utils_oo_l_of_d_to_csv, - "map_from_pairs": map_from_pairs + "lib_utils_oo_has_no_matching_selector": lib_utils_oo_has_no_matching_selector, + "lib_utils_oo_get_node_labels": lib_utils_oo_get_node_labels, + "map_from_pairs": map_from_pairs, } -- cgit v1.2.3