Struct Daemon

cmd/incusd/daemon.go:86–178

A Daemon can respond to requests from a shared client.

// A Daemon can respond to requests from a shared client.
type Daemon struct {
	clientCerts *certificate.Cache
	os          *sys.OS
	db          *db.DB
	firewall    firewall.Firewall
	bgp         *bgp.Server
	dns         *dns.Server

	// Event servers
	devIncusEvents   *events.DevIncusServer
	events           *events.Server
	internalListener *events.InternalListener

	// Tasks registry for long-running background tasks
	// Keep clustering tasks separate as they cause a lot of CPU wakeups
	tasks        task.Group
	clusterTasks task.Group

	// Indexes of tasks that need to be reset when their execution interval changes
	taskPruneImages      *task.Task
	taskClusterHeartbeat *task.Task

	// Stores startup time of daemon
	startTime time.Time

	// Whether daemon was started by systemd socket activation.
	systemdSocketActivated bool

	config    *DaemonConfig
	endpoints *endpoints.Endpoints
	gateway   *cluster.Gateway
	seccomp   *seccomp.Server

	proxy func(req *http.Request) (*url.URL, error)

	oidcVerifier *oidc.Verifier

	// Stores last heartbeat node information to detect node changes.
	lastNodeList *cluster.APIHeartbeat

	// Serialize changes to cluster membership (joins, leaves, role
	// changes).
	clusterMembershipMutex sync.RWMutex

	serverCert    func() *localtls.CertInfo
	serverCertInt *localtls.CertInfo // Do not use this directly, use servertCert func.

	// Status control.
	setupChan      chan struct{}      // Closed when basic Daemon setup is completed
	waitReady      *cancel.Canceller  // Cancelled when fully ready
	shutdownCtx    context.Context    // Cancelled when shutdown starts.
	shutdownCancel context.CancelFunc // Cancels the shutdownCtx to indicate shutdown starting.
	shutdownDoneCh chan error         // Receives the result of the d.Stop() function and tells the daemon to end.

	// Device monitor for watching filesystem events
	devmonitor fsmonitor.FSMonitor

	// Keep track of skews.