132 lines
5.0 KiB
Ruby
132 lines
5.0 KiB
Ruby
#
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# Author:: Seth Chisamore (<schisamo@opscode.com>)
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# Author:: Lamont Granquist (<lamont@opscode.com>)
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# Copyright:: Copyright (c) 2011 Opscode, Inc.
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# License:: Apache License, Version 2.0
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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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require 'chef/provider'
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class Chef
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class Provider
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class Database
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class Postgresql < Chef::Provider
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include Chef::Mixin::ShellOut
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def load_current_resource
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Gem.clear_paths
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require 'pg'
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@current_resource = Chef::Resource::Database.new(@new_resource.name)
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@current_resource.database_name(@new_resource.database_name)
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@current_resource
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end
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def action_create
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unless exists?
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begin
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encoding = @new_resource.encoding
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if encoding != "DEFAULT"
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encoding = "'#{@new_resource.encoding}'"
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end
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Chef::Log.debug("#{@new_resource}: Creating database #{new_resource.database_name}")
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create_sql = "CREATE DATABASE \"#{new_resource.database_name}\""
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create_sql += " TEMPLATE = #{new_resource.template}" if new_resource.template
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create_sql += " ENCODING = #{encoding}" if new_resource.encoding
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create_sql += " TABLESPACE = #{new_resource.tablespace}" if new_resource.tablespace
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create_sql += " LC_CTYPE = '#{new_resource.collation}' LC_COLLATE = '#{new_resource.collation}'" if new_resource.collation
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create_sql += " CONNECTION LIMIT = #{new_resource.connection_limit}" if new_resource.connection_limit
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create_sql += " OWNER = \"#{new_resource.owner}\"" if new_resource.owner
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Chef::Log.debug("#{@new_resource}: Performing query [#{create_sql}]")
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db("template1").query(create_sql)
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@new_resource.updated_by_last_action(true)
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ensure
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close
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end
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end
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end
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def action_drop
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if exists?
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begin
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Chef::Log.debug("#{@new_resource}: Dropping database #{new_resource.database_name}")
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db("template1").query("DROP DATABASE \"#{new_resource.database_name}\"")
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@new_resource.updated_by_last_action(true)
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ensure
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close
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end
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end
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end
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def action_query
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if exists?
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begin
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Chef::Log.debug("#{@new_resource}: Performing query [#{new_resource.sql_query}]")
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db(@new_resource.database_name).query(@new_resource.sql_query)
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Chef::Log.debug("#{@new_resource}: query [#{new_resource.sql_query}] succeeded")
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@new_resource.updated_by_last_action(true)
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ensure
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close
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end
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end
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end
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private
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def exists?
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begin
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Chef::Log.debug("#{@new_resource}: checking if database #{@new_resource.database_name} exists")
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ret = db("template1").query("SELECT * FROM pg_database where datname = '#{@new_resource.database_name}'").num_tuples != 0
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ret ? Chef::Log.debug("#{@new_resource}: database #{@new_resource.database_name} exists") :
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Chef::Log.debug("#{@new_resource}: database #{@new_resource.database_name} does not exist")
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ensure
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close
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end
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ret
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end
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#
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# Specifying the database in the connection parameter for the postgres resource is not recommended.
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#
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# - action_create/drop/exists will use the "template1" database to do work by default.
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# - action_query will use the resource database_name.
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# - specifying a database in the connection will override this behavior
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#
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def db(dbname = nil)
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close if @db
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dbname = @new_resource.connection[:database] if @new_resource.connection[:database]
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host = @new_resource.connection[:host]
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port = @new_resource.connection[:port] || 5432
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user = @new_resource.connection[:username] || "postgres"
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Chef::Log.debug("#{@new_resource}: connecting to database #{dbname} on #{host}:#{port} as #{user}")
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password = @new_resource.connection[:password] || node[:postgresql][:password][:postgres]
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@db = ::PGconn.new(
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:host => host,
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:port => port,
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:dbname => dbname,
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:user => user,
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:password => password
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)
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end
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def close
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@db.close rescue nil
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@db = nil
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end
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end
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end
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end
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end
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