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fix(coderd): use DB liveness for chat workspace reuse (#23551)

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create_workspace could create a replacement workspace after a single 5s
agent dial failed, even when the existing workspace agent had recently
checked in. That made temporary reachability blips look like dead
workspaces and let chatd replace a running workspace too aggressively.

Use the workspace agent's DB-backed status with the deployment's
AgentInactiveDisconnectTimeout before allowing replacement. Recently
connected and still-connecting agents now reuse the existing workspace,
while disconnected or timed-out agents still allow a new workspace. This
also threads the inactivity timeout through chatd and adds focused
coverage for the reuse and replacement branches.
This commit is contained in:
Ethan
2026-03-26 00:12:05 +11:00
committed by GitHub
parent 4ba9986301
commit c0a323a751
4 changed files with 329 additions and 112 deletions
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coderd/coderd.go
+13 -12
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@@ -777,18 +777,19 @@ func New(options *Options) *API {
}
api.chatDaemon = chatd.New(chatd.Config{
Logger: options.Logger.Named("chatd"),
Database: options.Database,
ReplicaID: api.ID,
SubscribeFn: options.ChatSubscribeFn,
MaxChatsPerAcquire: int32(maxChatsPerAcquire), //nolint:gosec // maxChatsPerAcquire is clamped to int32 range above.
ProviderAPIKeys: chatProviderAPIKeysFromDeploymentValues(options.DeploymentValues),
AgentConn: api.agentProvider.AgentConn,
CreateWorkspace: api.chatCreateWorkspace,
StartWorkspace: api.chatStartWorkspace,
Pubsub: options.Pubsub,
WebpushDispatcher: options.WebPushDispatcher,
UsageTracker: options.WorkspaceUsageTracker,
Logger: options.Logger.Named("chatd"),
Database: options.Database,
ReplicaID: api.ID,
SubscribeFn: options.ChatSubscribeFn,
MaxChatsPerAcquire: int32(maxChatsPerAcquire), //nolint:gosec // maxChatsPerAcquire is clamped to int32 range above.
ProviderAPIKeys: chatProviderAPIKeysFromDeploymentValues(options.DeploymentValues),
AgentConn: api.agentProvider.AgentConn,
AgentInactiveDisconnectTimeout: api.AgentInactiveDisconnectTimeout,
CreateWorkspace: api.chatCreateWorkspace,
StartWorkspace: api.chatStartWorkspace,
Pubsub: options.Pubsub,
WebpushDispatcher: options.WebPushDispatcher,
UsageTracker: options.WorkspaceUsageTracker,
})
gitSyncLogger := options.Logger.Named("gitsync")
refresher := gitsync.NewRefresher(