propagate shared-config and library-option changes between instances

Add a Redis pub/sub invalidation bus, publish from the configuration and library-option write paths, and drop the matching local cache entry on the instances that did not write. No-op without a Redis connection string, and fails open when it is unreachable.
2026-09-20 23:47:21 +10:00
parent ec581b5e5f
commit b662ffa48f
16 changed files with 919 additions and 1 deletions
@@ -85,6 +85,13 @@ namespace MediaBrowser.Common.Configuration
        /// </summary>
        /// <param name="factories">The factories.</param>
        void AddParts(IEnumerable<IConfigurationFactory> factories);
+
+        /// <summary>
+        /// Drops the locally cached copy of configuration another instance has written to the shared
+        /// configuration directory, so the next read reloads it, and raises the local update event.
+        /// </summary>
+        /// <param name="key">The named configuration key, or <c>null</c> for the system configuration.</param>
+        void InvalidateCachedConfiguration(string? key);
    }

    public static class ConfigurationManagerExtensions