package daemon import ( "os" "runtime" "sync/atomic" "time" "github.com/Sirupsen/logrus" "github.com/docker/docker/api/types" "github.com/docker/docker/container" "github.com/docker/docker/dockerversion" "github.com/docker/docker/pkg/fileutils" "github.com/docker/docker/pkg/parsers/kernel" "github.com/docker/docker/pkg/parsers/operatingsystem" "github.com/docker/docker/pkg/platform" "github.com/docker/docker/pkg/sysinfo" "github.com/docker/docker/pkg/system" "github.com/docker/docker/registry" "github.com/docker/docker/utils" "github.com/docker/docker/volume/drivers" "github.com/docker/go-connections/sockets" ) // SystemInfo returns information about the host server the daemon is running on. func (daemon *Daemon) SystemInfo() (*types.Info, error) { kernelVersion := "" if kv, err := kernel.GetKernelVersion(); err != nil { logrus.Warnf("Could not get kernel version: %v", err) } else { kernelVersion = kv.String() } operatingSystem := "" if s, err := operatingsystem.GetOperatingSystem(); err != nil { logrus.Warnf("Could not get operating system name: %v", err) } else { operatingSystem = s } // Don't do containerized check on Windows if runtime.GOOS != "windows" { if inContainer, err := operatingsystem.IsContainerized(); err != nil { logrus.Errorf("Could not determine if daemon is containerized: %v", err) operatingSystem += " (error determining if containerized)" } else if inContainer { operatingSystem += " (containerized)" } } meminfo, err := system.ReadMemInfo() if err != nil { logrus.Errorf("Could not read system memory info: %v", err) meminfo = &system.MemInfo{} } sysInfo := sysinfo.New(true) var cRunning, cPaused, cStopped int32 daemon.containers.ApplyAll(func(c *container.Container) { switch c.StateString() { case "paused": atomic.AddInt32(&cPaused, 1) case "running": atomic.AddInt32(&cRunning, 1) default: atomic.AddInt32(&cStopped, 1) } }) var securityOptions []string if sysInfo.AppArmor { securityOptions = append(securityOptions, "apparmor") } if sysInfo.Seccomp && supportsSeccomp { securityOptions = append(securityOptions, "seccomp") } if selinuxEnabled() { securityOptions = append(securityOptions, "selinux") } uid, gid := daemon.GetRemappedUIDGID() if uid != 0 || gid != 0 { securityOptions = append(securityOptions, "userns") } v := &types.Info{ ID: daemon.ID, Containers: int(cRunning + cPaused + cStopped), ContainersRunning: int(cRunning), ContainersPaused: int(cPaused), ContainersStopped: int(cStopped), Images: len(daemon.imageStore.Map()), Driver: daemon.GraphDriverName(), DriverStatus: daemon.layerStore.DriverStatus(), Plugins: daemon.showPluginsInfo(), IPv4Forwarding: !sysInfo.IPv4ForwardingDisabled, BridgeNfIptables: !sysInfo.BridgeNFCallIPTablesDisabled, BridgeNfIP6tables: !sysInfo.BridgeNFCallIP6TablesDisabled, Debug: utils.IsDebugEnabled(), NFd: fileutils.GetTotalUsedFds(), NGoroutines: runtime.NumGoroutine(), SystemTime: time.Now().Format(time.RFC3339Nano), LoggingDriver: daemon.defaultLogConfig.Type, CgroupDriver: daemon.getCgroupDriver(), NEventsListener: daemon.EventsService.SubscribersCount(), KernelVersion: kernelVersion, OperatingSystem: operatingSystem, IndexServerAddress: registry.IndexServer, OSType: platform.OSType, Architecture: platform.Architecture, RegistryConfig: daemon.RegistryService.ServiceConfig(), NCPU: sysinfo.NumCPU(), MemTotal: meminfo.MemTotal, DockerRootDir: daemon.configStore.Root, Labels: daemon.configStore.Labels, ExperimentalBuild: daemon.configStore.Experimental, ServerVersion: dockerversion.Version, ClusterStore: daemon.configStore.ClusterStore, ClusterAdvertise: daemon.configStore.ClusterAdvertise, HTTPProxy: sockets.GetProxyEnv("http_proxy"), HTTPSProxy: sockets.GetProxyEnv("https_proxy"), NoProxy: sockets.GetProxyEnv("no_proxy"), SecurityOptions: securityOptions, LiveRestoreEnabled: daemon.configStore.LiveRestoreEnabled, Isolation: daemon.defaultIsolation, } // TODO Windows. Refactor this more once sysinfo is refactored into // platform specific code. On Windows, sysinfo.cgroupMemInfo and // sysinfo.cgroupCpuInfo will be nil otherwise and cause a SIGSEGV if // an attempt is made to access through them. if runtime.GOOS != "windows" { v.MemoryLimit = sysInfo.MemoryLimit v.SwapLimit = sysInfo.SwapLimit v.KernelMemory = sysInfo.KernelMemory v.OomKillDisable = sysInfo.OomKillDisable v.CPUCfsPeriod = sysInfo.CPUCfsPeriod v.CPUCfsQuota = sysInfo.CPUCfsQuota v.CPUShares = sysInfo.CPUShares v.CPUSet = sysInfo.Cpuset v.Runtimes = daemon.configStore.GetAllRuntimes() v.DefaultRuntime = daemon.configStore.GetDefaultRuntimeName() } hostname := "" if hn, err := os.Hostname(); err != nil { logrus.Warnf("Could not get hostname: %v", err) } else { hostname = hn } v.Name = hostname return v, nil } // SystemVersion returns version information about the daemon. func (daemon *Daemon) SystemVersion() types.Version { v := types.Version{ Version: dockerversion.Version, GitCommit: dockerversion.GitCommit, GoVersion: runtime.Version(), Os: runtime.GOOS, Arch: runtime.GOARCH, BuildTime: dockerversion.BuildTime, Experimental: daemon.configStore.Experimental, } kernelVersion := "" if kv, err := kernel.GetKernelVersion(); err != nil { logrus.Warnf("Could not get kernel version: %v", err) } else { kernelVersion = kv.String() } v.KernelVersion = kernelVersion return v } func (daemon *Daemon) showPluginsInfo() types.PluginsInfo { var pluginsInfo types.PluginsInfo pluginsInfo.Volume = volumedrivers.GetDriverList() pluginsInfo.Network = daemon.GetNetworkDriverList() pluginsInfo.Authorization = daemon.configStore.AuthorizationPlugins return pluginsInfo }