WIP Prepare postgres for migration by replication

site-cookbooks/kosmos_postgresql/recipes/management_scripts.rb

@@ -0,0 +1,121 @@
+#
+# Cookbook:: kosmos_postgresql
+# Recipe:: management_scripts
+#
+
+credentials = data_bag_item('credentials', 'postgresql')
+
+cookbook_file "/usr/local/bin/pg_dump_all_databases" do
+  source "dump_all_databases.sh"
+  user "postgres"
+  group "postgres"
+  mode "0744"
+end
+
+cookbook_file "/usr/local/bin/pg_dump_database" do
+  source "dump_database.sh"
+  user "postgres"
+  group "postgres"
+  mode "0744"
+end
+
+cookbook_file "/usr/local/bin/pg_restore_all_databases" do
+  source "restore_all_databases.sh"
+  user "postgres"
+  group "postgres"
+  mode "0744"
+end
+
+cookbook_file "/usr/local/bin/pg_restore_database" do
+  source "restore_database.sh"
+  user "postgres"
+  group "postgres"
+  mode "0744"
+end
+
+cookbook_file "/usr/local/bin/pg_create_replication_publications" do
+  source "create_publications.sh"
+  user "postgres"
+  group "postgres"
+  mode "0744"
+end
+
+cookbook_file "/usr/local/bin/pg_create_replication_publication" do
+  source "create_publication.sh"
+  user "postgres"
+  group "postgres"
+  mode "0744"
+end
+
+cookbook_file "/usr/local/bin/pg_drop_replication_publications" do
+  source "drop_publications.sh"
+  user "postgres"
+  group "postgres"
+  mode "0744"
+end
+
+cookbook_file "/usr/local/bin/pg_list_replication_publications" do
+  source "list_publications.sh"
+  user "postgres"
+  group "postgres"
+  mode "0744"
+end
+
+cookbook_file "/usr/local/bin/pg_list_replication_slots" do
+  source "list_replication_slots.sh"
+  user "postgres"
+  group "postgres"
+  mode "0744"
+end
+
+template "/usr/local/bin/pg_create_replication_subscriptions" do
+  source "create_subscriptions.sh.erb"
+  user "postgres"
+  group "postgres"
+  mode "0740"
+  variables pg_host: "pg.kosmos.local",
+            pg_port: 5432,
+            pg_user: "replication",
+            pg_pass: credentials["replication_password"]
+  sensitive true
+end
+
+template "/usr/local/bin/pg_create_replication_subscription" do
+  source "create_subscription.sh.erb"
+  user "postgres"
+  group "postgres"
+  mode "0740"
+  variables pg_host: "pg.kosmos.local",
+            pg_port: 5432,
+            pg_user: "replication",
+            pg_pass: credentials["replication_password"]
+  sensitive true
+end
+
+cookbook_file "/usr/local/bin/pg_drop_replication_subscriptions" do
+  source "drop_subscriptions.sh"
+  user "postgres"
+  group "postgres"
+  mode "0744"
+end
+
+cookbook_file "/usr/local/bin/pg_list_replication_subscriptions" do
+  source "list_subscriptions.sh"
+  user "postgres"
+  group "postgres"
+  mode "0744"
+end
+
+cookbook_file "/usr/local/bin/pg_fix_sequences_in_all_databases" do
+  source "fix_sequences.sh"
+  user "postgres"
+  group "postgres"
+  mode "0744"
+end
+
+cookbook_file "/usr/local/bin/pg_fix_sequences" do
+  source "fix_sequences.sh"
+  user "postgres"
+  group "postgres"
+  mode "0744"
+end

site-cookbooks/kosmos_postgresql/recipes/primary.rb

@@ -6,4 +6,3 @@
 postgresql_custom_server postgresql_version do
   role "primary"
 end
-

site-cookbooks/kosmos_postgresql/recipes/replica.rb

@@ -3,10 +3,6 @@
 # Recipe:: replica
 #
 
-service postgresql_service do
-  supports restart: true, status: true, reload: true
-end
-
 postgresql_custom_server postgresql_version do
   role "replica"
 end
@@ -20,6 +16,9 @@ if primary.nil?
   return
 end
 
+# TODO Replace pg.kosmos.local with private IP once available
+# via proper node attribute
+# https://gitea.kosmos.org/kosmos/chef/issues/263
 execute "set up replication" do
   command <<-EOF
 systemctl stop #{postgresql_service}

site-cookbooks/kosmos_postgresql/recipes/replica_logical.rb

@@ -0,0 +1,15 @@
+#
+# Cookbook:: kosmos_postgresql
+# Recipe:: replica_logical
+#
+
+postgresql_custom_server postgresql_version do
+  role "replica_logical"
+end
+
+# primary = postgresql_primary
+#
+# if primary.nil?
+#   Chef::Log.warn("No PostgreSQL primary node found. Skipping replication setup.")
+#   return
+# end