Initial parity cookbook

Supports installing multiple instances of Parity on the same machine,
running on different ports

Refs #15

site-cookbooks/kosmos-parity/resources/node.rb

@@ -0,0 +1,50 @@
+provides :parity_node
+
+property :name, String, name_property: true
+property :config, Hash
+
+action :enable do
+  node_name = name
+
+  base_path = "#{node['kosmos-parity']['home_path']}/.local/share/io.parity.ethereum/#{name}"
+
+  directory base_path do
+    recursive true
+    owner     "parity"
+    group     "parity"
+  end
+
+  %w(chains keys).each do |subfolder|
+    directory "#{base_path}/#{subfolder}" do
+      recursive true
+      owner     "parity"
+      group     "parity"
+    end
+  end
+
+  config_file = "#{base_path}/config.toml"
+
+  template config_file do
+    source    "config.toml.erb"
+    owner     "parity"
+    group     "parity"
+    variables config.merge(base_path: base_path)
+  end
+
+  execute "systemctl daemon-reload" do
+    command "systemctl daemon-reload"
+    action :nothing
+  end
+
+  parity_service = "parity_#{node_name}"
+  template "/lib/systemd/system/#{parity_service}.service" do
+    source "parity.systemd.service.erb"
+    variables config_file: config_file
+    notifies :run, "execute[systemctl daemon-reload]", :delayed
+    notifies :restart, "service[#{parity_service}]", :delayed
+  end
+
+  service parity_service do
+    action [:enable, :start]
+  end
+end