configuration: introduced tunable controlling partition shutdown timeout

Introduced property that is going to be used by
`cluster::partition_manager` shutdown watchdog mechanism.

Signed-off-by: Michal Maslanka <[email protected]>

Author: mmaslankaprv

src/v/config/configuration.cc

@@ -261,6 +261,14 @@ configuration::configuration()
         .min = 0,     // It is not mandatory to reserve any capacity
         .max = 131072 // Same max as topic_partitions_per_shard
       })
+  , partition_manager_shutdown_watchdog_timeout(
+      *this,
+      "partition_manager_shutdown_watchdog_timeout",
+      "A threshold value to detect partitions which shutdown might have been "
+      "stuck. After this threshold a watchdog in partition manager will log "
+      "information about partition shutdown not making progress",
+      {.needs_restart = needs_restart::no, .visibility = visibility::tunable},
+      30s)
   , admin_api_require_auth(
       *this,
       "admin_api_require_auth",

src/v/config/configuration.h

@@ -80,6 +80,8 @@ struct configuration final : public config_store {
     bounded_property<std::optional<int32_t>> topic_fds_per_partition;
     bounded_property<uint32_t> topic_partitions_per_shard;
     bounded_property<uint32_t> topic_partitions_reserve_shard0;
+    property<std::chrono::milliseconds>
+      partition_manager_shutdown_watchdog_timeout;
 
     // Admin API
     property<bool> admin_api_require_auth;