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258 lines
8 KiB
Go
258 lines
8 KiB
Go
package daemon // import "github.com/docker/docker/daemon"
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import (
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"fmt"
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"net/url"
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"os"
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"runtime"
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"strings"
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"time"
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"github.com/docker/docker/api"
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"github.com/docker/docker/api/types"
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"github.com/docker/docker/cli/debug"
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"github.com/docker/docker/daemon/logger"
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"github.com/docker/docker/dockerversion"
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"github.com/docker/docker/pkg/fileutils"
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"github.com/docker/docker/pkg/parsers/kernel"
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"github.com/docker/docker/pkg/parsers/operatingsystem"
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"github.com/docker/docker/pkg/platform"
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"github.com/docker/docker/pkg/sysinfo"
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"github.com/docker/docker/pkg/system"
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"github.com/docker/docker/registry"
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"github.com/docker/go-connections/sockets"
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"github.com/sirupsen/logrus"
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)
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// SystemInfo returns information about the host server the daemon is running on.
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func (daemon *Daemon) SystemInfo() (*types.Info, error) {
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sysInfo := sysinfo.New(true)
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cRunning, cPaused, cStopped := stateCtr.get()
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v := &types.Info{
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ID: daemon.ID,
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Containers: cRunning + cPaused + cStopped,
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ContainersRunning: cRunning,
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ContainersPaused: cPaused,
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ContainersStopped: cStopped,
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Images: daemon.imageService.CountImages(),
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IPv4Forwarding: !sysInfo.IPv4ForwardingDisabled,
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BridgeNfIptables: !sysInfo.BridgeNFCallIPTablesDisabled,
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BridgeNfIP6tables: !sysInfo.BridgeNFCallIP6TablesDisabled,
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Debug: debug.IsEnabled(),
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Name: hostName(),
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NFd: fileutils.GetTotalUsedFds(),
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NGoroutines: runtime.NumGoroutine(),
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SystemTime: time.Now().Format(time.RFC3339Nano),
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LoggingDriver: daemon.defaultLogConfig.Type,
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CgroupDriver: daemon.getCgroupDriver(),
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NEventsListener: daemon.EventsService.SubscribersCount(),
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KernelVersion: kernelVersion(),
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OperatingSystem: operatingSystem(),
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IndexServerAddress: registry.IndexServer,
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OSType: platform.OSType,
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Architecture: platform.Architecture,
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RegistryConfig: daemon.RegistryService.ServiceConfig(),
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NCPU: sysinfo.NumCPU(),
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MemTotal: memInfo().MemTotal,
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GenericResources: daemon.genericResources,
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DockerRootDir: daemon.configStore.Root,
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Labels: daemon.configStore.Labels,
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ExperimentalBuild: daemon.configStore.Experimental,
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ServerVersion: dockerversion.Version,
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ClusterStore: daemon.configStore.ClusterStore,
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ClusterAdvertise: daemon.configStore.ClusterAdvertise,
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HTTPProxy: maskCredentials(sockets.GetProxyEnv("http_proxy")),
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HTTPSProxy: maskCredentials(sockets.GetProxyEnv("https_proxy")),
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NoProxy: sockets.GetProxyEnv("no_proxy"),
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LiveRestoreEnabled: daemon.configStore.LiveRestoreEnabled,
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Isolation: daemon.defaultIsolation,
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}
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daemon.fillAPIInfo(v)
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// Retrieve platform specific info
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daemon.fillPlatformInfo(v, sysInfo)
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daemon.fillDriverInfo(v)
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daemon.fillPluginsInfo(v)
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daemon.fillSecurityOptions(v, sysInfo)
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daemon.fillLicense(v)
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return v, nil
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}
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// SystemVersion returns version information about the daemon.
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func (daemon *Daemon) SystemVersion() types.Version {
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kernelVersion := kernelVersion()
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v := types.Version{
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Components: []types.ComponentVersion{
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{
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Name: "Engine",
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Version: dockerversion.Version,
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Details: map[string]string{
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"GitCommit": dockerversion.GitCommit,
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"ApiVersion": api.DefaultVersion,
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"MinAPIVersion": api.MinVersion,
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"GoVersion": runtime.Version(),
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"Os": runtime.GOOS,
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"Arch": runtime.GOARCH,
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"BuildTime": dockerversion.BuildTime,
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"KernelVersion": kernelVersion,
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"Experimental": fmt.Sprintf("%t", daemon.configStore.Experimental),
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},
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},
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},
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// Populate deprecated fields for older clients
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Version: dockerversion.Version,
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GitCommit: dockerversion.GitCommit,
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APIVersion: api.DefaultVersion,
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MinAPIVersion: api.MinVersion,
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GoVersion: runtime.Version(),
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Os: runtime.GOOS,
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Arch: runtime.GOARCH,
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BuildTime: dockerversion.BuildTime,
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KernelVersion: kernelVersion,
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Experimental: daemon.configStore.Experimental,
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}
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v.Platform.Name = dockerversion.PlatformName
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return v
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}
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func (daemon *Daemon) fillDriverInfo(v *types.Info) {
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var ds [][2]string
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drivers := ""
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statuses := daemon.imageService.LayerStoreStatus()
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for os, gd := range daemon.graphDrivers {
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ds = append(ds, statuses[os]...)
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drivers += gd
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if len(daemon.graphDrivers) > 1 {
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drivers += fmt.Sprintf(" (%s) ", os)
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}
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}
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drivers = strings.TrimSpace(drivers)
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v.Driver = drivers
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v.DriverStatus = ds
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fillDriverWarnings(v)
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}
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func (daemon *Daemon) fillPluginsInfo(v *types.Info) {
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v.Plugins = types.PluginsInfo{
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Volume: daemon.volumes.GetDriverList(),
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Network: daemon.GetNetworkDriverList(),
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// The authorization plugins are returned in the order they are
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// used as they constitute a request/response modification chain.
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Authorization: daemon.configStore.AuthorizationPlugins,
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Log: logger.ListDrivers(),
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}
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}
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func (daemon *Daemon) fillSecurityOptions(v *types.Info, sysInfo *sysinfo.SysInfo) {
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var securityOptions []string
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if sysInfo.AppArmor {
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securityOptions = append(securityOptions, "name=apparmor")
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}
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if sysInfo.Seccomp && supportsSeccomp {
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profile := daemon.seccompProfilePath
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if profile == "" {
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profile = "default"
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}
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securityOptions = append(securityOptions, fmt.Sprintf("name=seccomp,profile=%s", profile))
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}
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if selinuxEnabled() {
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securityOptions = append(securityOptions, "name=selinux")
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}
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if rootIDs := daemon.idMapping.RootPair(); rootIDs.UID != 0 || rootIDs.GID != 0 {
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securityOptions = append(securityOptions, "name=userns")
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}
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v.SecurityOptions = securityOptions
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}
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func (daemon *Daemon) fillAPIInfo(v *types.Info) {
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const warn string = `
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Access to the remote API is equivalent to root access on the host. Refer
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to the 'Docker daemon attack surface' section in the documentation for
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more information: https://docs.docker.com/engine/security/security/#docker-daemon-attack-surface`
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cfg := daemon.configStore
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for _, host := range cfg.Hosts {
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// cnf.Hosts is normalized during startup, so should always have a scheme/proto
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h := strings.SplitN(host, "://", 2)
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proto := h[0]
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addr := h[1]
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if proto != "tcp" {
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continue
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}
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if !cfg.TLS {
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v.Warnings = append(v.Warnings, fmt.Sprintf("WARNING: API is accessible on http://%s without encryption.%s", addr, warn))
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continue
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}
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if !cfg.TLSVerify {
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v.Warnings = append(v.Warnings, fmt.Sprintf("WARNING: API is accessible on https://%s without TLS client verification.%s", addr, warn))
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continue
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}
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}
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}
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func hostName() string {
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hostname := ""
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if hn, err := os.Hostname(); err != nil {
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logrus.Warnf("Could not get hostname: %v", err)
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} else {
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hostname = hn
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}
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return hostname
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}
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func kernelVersion() string {
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var kernelVersion string
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if kv, err := kernel.GetKernelVersion(); err != nil {
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logrus.Warnf("Could not get kernel version: %v", err)
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} else {
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kernelVersion = kv.String()
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}
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return kernelVersion
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}
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func memInfo() *system.MemInfo {
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memInfo, err := system.ReadMemInfo()
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if err != nil {
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logrus.Errorf("Could not read system memory info: %v", err)
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memInfo = &system.MemInfo{}
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}
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return memInfo
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}
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func operatingSystem() string {
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var operatingSystem string
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if s, err := operatingsystem.GetOperatingSystem(); err != nil {
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logrus.Warnf("Could not get operating system name: %v", err)
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} else {
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operatingSystem = s
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}
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// Don't do containerized check on Windows
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if runtime.GOOS != "windows" {
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if inContainer, err := operatingsystem.IsContainerized(); err != nil {
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logrus.Errorf("Could not determine if daemon is containerized: %v", err)
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operatingSystem += " (error determining if containerized)"
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} else if inContainer {
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operatingSystem += " (containerized)"
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}
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}
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return operatingSystem
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}
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func maskCredentials(rawURL string) string {
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parsedURL, err := url.Parse(rawURL)
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if err != nil || parsedURL.User == nil {
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return rawURL
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}
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parsedURL.User = url.UserPassword("xxxxx", "xxxxx")
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maskedURL := parsedURL.String()
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return maskedURL
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}
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