Fix template1 encoding on debian

manifests/server/initdb.pp

@@ -80,5 +80,21 @@ class postgresql::server::initdb {
         }
       }
     }
+  } elsif $encoding != undef {
+    # [workaround]
+    # by default pg_createcluster encoding derived from locale
+    # but it do does not work by installing postgresql via puppet because puppet
+    # always override LANG to 'C'
+    postgresql_psql { "Set template1 encoding to ${encoding}":
+      command => "UPDATE pg_database
+        SET datistemplate = FALSE
+        WHERE datname = 'template1'
+        ;
+        UPDATE pg_database
+        SET encoding = pg_char_to_encoding('${encoding}'), datistemplate = TRUE
+        WHERE datname = 'template1'",
+      unless  => "SELECT datname FROM pg_database WHERE
+        datname = 'template1' AND pg_encoding_to_char(encoding) = '${encoding}'",
+    }
   }
 }