diff options
Diffstat (limited to 'provider_base/lib/macros/nodes.rb')
| -rw-r--r-- | provider_base/lib/macros/nodes.rb | 88 |
1 files changed, 0 insertions, 88 deletions
diff --git a/provider_base/lib/macros/nodes.rb b/provider_base/lib/macros/nodes.rb deleted file mode 100644 index 8b961cbc..00000000 --- a/provider_base/lib/macros/nodes.rb +++ /dev/null @@ -1,88 +0,0 @@ -# encoding: utf-8 - -## -## node related macros -## - -module LeapCli - module Macro - - # - # the list of all the nodes - # - def nodes - global.nodes - end - - # - # simple alias for global.provider - # - def provider - global.provider - end - - # - # returns a list of nodes that match the same environment - # - # if @node.environment is not set, we return other nodes - # where environment is not set. - # - def nodes_like_me - nodes[:environment => @node.environment] - end - - # - # returns a list of nodes that match the location name - # and environment of @node. - # - def nodes_near_me - if @node['location'] && @node['location']['name'] - nodes_like_me['location.name' => @node.location.name] - else - nodes_like_me['location' => nil] - end - end - - # - # - # picks a node out from the node list in such a way that: - # - # (1) which nodes picked which nodes is saved in secrets.json - # (2) when other nodes call this macro with the same node list, they are guaranteed to get a different node - # (3) if all the nodes in the pick_node list have been picked, remaining nodes are distributed randomly. - # - # if the node_list is empty, an exception is raised. - # if node_list size is 1, then that node is returned and nothing is - # memorized via the secrets.json file. - # - # `label` is needed to distinguish between pools of nodes for different purposes. - # - # TODO: more evenly balance after all the nodes have been picked. - # - def pick_node(label, node_list) - if node_list.any? - if node_list.size == 1 - return node_list.values.first - else - secrets_key = "pick_node(:#{label},#{node_list.keys.sort.join(',')})" - secrets_value = @manager.secrets.retrieve(secrets_key, @node.environment) || {} - secrets_value[@node.name] ||= begin - node_to_pick = nil - node_list.each_node do |node| - next if secrets_value.values.include?(node.name) - node_to_pick = node.name - end - node_to_pick ||= secrets_value.values.shuffle.first # all picked already, so pick a random one. - node_to_pick - end - picked_node_name = secrets_value[@node.name] - @manager.secrets.set(secrets_key, secrets_value, @node.environment) - return node_list[picked_node_name] - end - else - raise ArgumentError.new('pick_node(node_list): node_list cannot be empty') - end - end - - end -end
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