cookbooks/postgresql/resources/sequence.rb

   1 #
   2 # Cookbook:: postgresql
   3 # Resource:: postgresql_sequence
   4 #
   5 # Copyright:: 2023, OpenStreetMap Foundation
   6 #
   7 # Licensed under the Apache License, Version 2.0 (the "License");
   8 # you may not use this file except in compliance with the License.
   9 # You may obtain a copy of the License at
  10 #
  11 # https://www.apache.org/licenses/LICENSE-2.0
  12 #
  13 # Unless required by applicable law or agreed to in writing, software
  14 # distributed under the License is distributed on an "AS IS" BASIS,
  15 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  16 # See the License for the specific language governing permissions and
  17 # limitations under the License.
  18 #
  19
  20 unified_mode true
  21
  22 default_action :create
  23
  24 property :sequence, :kind_of => String, :name_property => true
  25 property :cluster, :kind_of => String, :required => true
  26 property :database, :kind_of => String, :required => true
  27 property :schema, :kind_of => String, :default => "public"
  28 property :owner, :kind_of => String, :required => [:create]
  29 property :permissions, :kind_of => Hash, :default => {}
  30
  31 action :create do
  32   if sequences.include?(qualified_name)
  33     if new_resource.owner != sequences[qualified_name][:owner]
  34       converge_by("set owner for #{new_resource} to #{new_resource.owner}") do
  35         Chef::Log.info("Setting owner for #{new_resource} to #{new_resource.owner}")
  36         cluster.execute(:command => "ALTER SEQUENCE #{qualified_name} OWNER TO \"#{new_resource.owner}\"", :database => new_resource.database)
  37       end
  38     end
  39
  40     sequences[qualified_name][:permissions].each_key do |user|
  41       next if new_resource.permissions[user]
  42
  43       converge_by("revoke all for #{user} on #{new_resource}") do
  44         Chef::Log.info("Revoking all for #{user} on #{new_resource}")
  45         cluster.execute(:command => "REVOKE ALL ON TABLE #{qualified_name} FROM \"#{user}\"", :database => new_resource.database)
  46       end
  47     end
  48
  49     new_resource.permissions.each do |user, new_privileges|
  50       current_privileges = sequences[qualified_name][:permissions][user] || {}
  51       new_privileges = Array(new_privileges)
  52
  53       if new_privileges.include?(:all)
  54         new_privileges |= OpenStreetMap::PostgreSQL::SEQUENCE_PRIVILEGES
  55       end
  56
  57       OpenStreetMap::PostgreSQL::SEQUENCE_PRIVILEGES.each do |privilege|
  58         if new_privileges.include?(privilege)
  59           unless current_privileges.include?(privilege)
  60             converge_by("grant #{privilege} for #{user} on #{new_resource}") do
  61               Chef::Log.info("Granting #{privilege} for #{user} on #{new_resource}")
  62               cluster.execute(:command => "GRANT #{privilege.to_s.upcase} ON SEQUENCE #{qualified_name} TO \"#{user}\"", :database => new_resource.database)
  63             end
  64           end
  65         elsif current_privileges.include?(privilege)
  66           converge_by("revoke #{privilege} for #{user} on #{new_resource}") do
  67             Chef::Log.info("Revoking #{privilege} for #{user} on #{new_resource}")
  68             cluster.execute(:command => "REVOKE #{privilege.to_s.upcase} ON SEQUENCE #{qualified_name} FROM \"#{user}\"", :database => new_resource.database)
  69           end
  70         end
  71       end
  72     end
  73   end
  74 end
  75
  76 action :drop do
  77   if sequences.include?(qualified_name)
  78     converge_by("drop #{new_resource}") do
  79       Chef::Log.info("Dropping #{new_resource}")
  80       cluster.execute(:command => "DROP SEQUENCE #{qualified_name}", :database => new_resource.database)
  81     end
  82   end
  83 end
  84
  85 action_class do
  86   def cluster
  87     @cluster ||= OpenStreetMap::PostgreSQL.new(new_resource.cluster)
  88   end
  89
  90   def sequences
  91     @sequences ||= cluster.sequences(new_resource.database)
  92   end
  93
  94   def qualified_name
  95     "#{new_resource.schema}.#{new_resource.name}"
  96   end
  97 end