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moby--moby/daemon/info.go
Daniel Nephin 4f0d95fa6e Add canonical import comment
Signed-off-by: Daniel Nephin <dnephin@docker.com>
2018-02-05 16:51:57 -05:00

206 lines
6.5 KiB
Go

package daemon // import "github.com/docker/docker/daemon"
import (
"fmt"
"os"
"runtime"
"strings"
"time"
"github.com/docker/docker/api"
"github.com/docker/docker/api/types"
"github.com/docker/docker/cli/debug"
"github.com/docker/docker/daemon/logger"
"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/volume/drivers"
"github.com/docker/go-connections/sockets"
"github.com/sirupsen/logrus"
)
// SystemInfo returns information about the host server the daemon is running on.
func (daemon *Daemon) SystemInfo() (*types.Info, error) {
kernelVersion := "<unknown>"
if kv, err := kernel.GetKernelVersion(); err != nil {
logrus.Warnf("Could not get kernel version: %v", err)
} else {
kernelVersion = kv.String()
}
operatingSystem := "<unknown>"
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)
cRunning, cPaused, cStopped := stateCtr.get()
securityOptions := []string{}
if sysInfo.AppArmor {
securityOptions = append(securityOptions, "name=apparmor")
}
if sysInfo.Seccomp && supportsSeccomp {
profile := daemon.seccompProfilePath
if profile == "" {
profile = "default"
}
securityOptions = append(securityOptions, fmt.Sprintf("name=seccomp,profile=%s", profile))
}
if selinuxEnabled() {
securityOptions = append(securityOptions, "name=selinux")
}
rootIDs := daemon.idMappings.RootPair()
if rootIDs.UID != 0 || rootIDs.GID != 0 {
securityOptions = append(securityOptions, "name=userns")
}
var ds [][2]string
drivers := ""
for os, gd := range daemon.graphDrivers {
ds = append(ds, daemon.layerStores[os].DriverStatus()...)
drivers += gd
if len(daemon.graphDrivers) > 1 {
drivers += fmt.Sprintf(" (%s) ", os)
}
}
drivers = strings.TrimSpace(drivers)
v := &types.Info{
ID: daemon.ID,
Containers: cRunning + cPaused + cStopped,
ContainersRunning: cRunning,
ContainersPaused: cPaused,
ContainersStopped: cStopped,
Images: len(daemon.imageStore.Map()),
Driver: drivers,
DriverStatus: ds,
Plugins: daemon.showPluginsInfo(),
IPv4Forwarding: !sysInfo.IPv4ForwardingDisabled,
BridgeNfIptables: !sysInfo.BridgeNFCallIPTablesDisabled,
BridgeNfIP6tables: !sysInfo.BridgeNFCallIP6TablesDisabled,
Debug: debug.IsEnabled(),
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,
GenericResources: daemon.genericResources,
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"),
LiveRestoreEnabled: daemon.configStore.LiveRestoreEnabled,
SecurityOptions: securityOptions,
Isolation: daemon.defaultIsolation,
}
// Retrieve platform specific info
daemon.FillPlatformInfo(v, sysInfo)
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 {
kernelVersion := "<unknown>"
if kv, err := kernel.GetKernelVersion(); err != nil {
logrus.Warnf("Could not get kernel version: %v", err)
} else {
kernelVersion = kv.String()
}
v := types.Version{
Components: []types.ComponentVersion{
{
Name: "Engine",
Version: dockerversion.Version,
Details: map[string]string{
"GitCommit": dockerversion.GitCommit,
"ApiVersion": api.DefaultVersion,
"MinAPIVersion": api.MinVersion,
"GoVersion": runtime.Version(),
"Os": runtime.GOOS,
"Arch": runtime.GOARCH,
"BuildTime": dockerversion.BuildTime,
"KernelVersion": kernelVersion,
"Experimental": fmt.Sprintf("%t", daemon.configStore.Experimental),
},
},
},
// Populate deprecated fields for older clients
Version: dockerversion.Version,
GitCommit: dockerversion.GitCommit,
APIVersion: api.DefaultVersion,
MinAPIVersion: api.MinVersion,
GoVersion: runtime.Version(),
Os: runtime.GOOS,
Arch: runtime.GOARCH,
BuildTime: dockerversion.BuildTime,
KernelVersion: kernelVersion,
Experimental: daemon.configStore.Experimental,
}
v.Platform.Name = dockerversion.PlatformName
return v
}
func (daemon *Daemon) showPluginsInfo() types.PluginsInfo {
var pluginsInfo types.PluginsInfo
pluginsInfo.Volume = volumedrivers.GetDriverList()
pluginsInfo.Network = daemon.GetNetworkDriverList()
// The authorization plugins are returned in the order they are
// used as they constitute a request/response modification chain.
pluginsInfo.Authorization = daemon.configStore.AuthorizationPlugins
pluginsInfo.Log = logger.ListDrivers()
return pluginsInfo
}