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# File 'lib/bfire/rule.rb', line 36
def scale(up_or_down, count = 1)
new_computes = []
count.times do |i|
sorted_templates = group.templates.sort_by{|t| t.instances.length}
if up_or_down == :down
vm_to_delete = sorted_templates.last.instances[0]
if vm_to_delete.nil?
group.engine.logger.warn "#{group.banner}No resource to delete!"
else
group.engine.logger.info "#{group.banner}Removing compute #{vm_to_delete.signature}..."
if vm_to_delete.delete
sorted_templates.last.instances.delete vm_to_delete
group.trigger :scaled_down
end
end
else
template = sorted_templates.first
computes = group.engine.launch_compute(template)
template.instances.push(*computes)
new_computes.push(*computes)
end
end
new_computes
end
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