132 lines
3.9 KiB
Ruby
132 lines
3.9 KiB
Ruby
#
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# Author:: Seth Chisamore (<schisamo@opscode.com>)
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# Cookbook:: firewall
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# Resource:: default
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#
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# Copyright:: 2011-2016, Chef Software, Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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class Chef
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class Provider::FirewallUfw < Chef::Provider::LWRPBase
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include FirewallCookbook::Helpers::Ufw
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provides :firewall, os: 'linux', platform_family: %w(debian) do |node|
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!(node['firewall'] && node['firewall']['ubuntu_iptables'])
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end
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def whyrun_supported?
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false
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end
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action :install do
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next if disabled?(new_resource)
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converge_by('install ufw, create template for /etc/default') do
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package 'ufw' do
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action :install
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end
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template '/etc/default/ufw' do
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action [:create]
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owner 'root'
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group 'root'
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mode '0644'
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source 'ufw/default.erb'
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cookbook 'firewall'
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end
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file "create empty #{ufw_rules_filename}" do
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path ufw_rules_filename
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content '# created by chef to allow service to start'
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not_if { ::File.exist?(ufw_rules_filename) }
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end
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end
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end
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action :restart do
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next if disabled?(new_resource)
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# ensure it's initialized
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new_resource.rules({}) unless new_resource.rules
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new_resource.rules['ufw'] = {} unless new_resource.rules['ufw']
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# this populates the hash of rules from firewall_rule resources
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firewall_rules = run_context.resource_collection.select { |item| item.is_a?(Chef::Resource::FirewallRule) }
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firewall_rules.each do |firewall_rule|
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next unless firewall_rule.action.include?(:create) && !firewall_rule.should_skip?(:create)
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# build rules to apply with weight
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k = build_rule(firewall_rule)
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v = firewall_rule.position
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# unless we're adding them for the first time.... bail out.
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unless new_resource.rules['ufw'].key?(k) && new_resource.rules['ufw'][k] == v
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new_resource.rules['ufw'][k] = v
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end
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end
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# ensure a file resource exists with the current ufw rules
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begin
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ufw_file = run_context.resource_collection.find(file: ufw_rules_filename)
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rescue
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ufw_file = file ufw_rules_filename do
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action :nothing
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end
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end
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ufw_file.content build_rule_file(new_resource.rules['ufw'])
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ufw_file.run_action(:create)
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# if the file was changed, restart iptables
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if ufw_file.updated_by_last_action?
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ufw_reset!
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ufw_logging!(new_resource.log_level) if new_resource.log_level
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new_resource.rules['ufw'].sort_by { |_k, v| v }.map { |k, _v| k }.each do |cmd|
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ufw_rule!(cmd)
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end
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# ensure it's enabled _after_ rules are inputted, to catch malformed rules
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ufw_enable! unless ufw_active?
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new_resource.updated_by_last_action(true)
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end
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end
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action :disable do
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next if disabled?(new_resource)
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file "create empty #{ufw_rules_filename}" do
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path ufw_rules_filename
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content '# created by chef to allow service to start'
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end
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if ufw_active?
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ufw_disable!
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new_resource.updated_by_last_action(true)
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end
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end
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action :flush do
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next if disabled?(new_resource)
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ufw_reset!
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new_resource.updated_by_last_action(true)
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file "create empty #{ufw_rules_filename}" do
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path ufw_rules_filename
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content '# created by chef to allow service to start'
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end
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end
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end
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end
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