Files
docker-cli/components/engine/daemon/info.go
Aaron Lehmann 4d9279a3fb Improve documentation and golint compliance of registry package
* Add godoc documentation where it was missing

* Change identifier names that don't match Go style, such as INDEX_NAME

* Rename RegistryInfo to PingResult, which more accurately describes
  what this structure is for. It also has the benefit of making the name
  not stutter if used outside the package.

Updates #14756

Signed-off-by: Aaron Lehmann <aaron.lehmann@docker.com>
Upstream-commit: 4fcb9ac40ce33c4d6e08d5669af6be5e076e2574
Component: engine
2015-07-24 11:55:07 -07:00

115 lines
3.8 KiB
Go

package daemon
import (
"os"
"runtime"
"time"
"github.com/Sirupsen/logrus"
"github.com/docker/docker/api/types"
"github.com/docker/docker/autogen/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/system"
"github.com/docker/docker/registry"
"github.com/docker/docker/utils"
)
func (daemon *Daemon) SystemInfo() (*types.Info, error) {
images := daemon.Graph().Map()
var imgcount int
if images == nil {
imgcount = 0
} else {
imgcount = len(images)
}
kernelVersion := "<unknown>"
if kv, err := kernel.GetKernelVersion(); err == nil {
kernelVersion = kv.String()
}
operatingSystem := "<unknown>"
if s, err := operatingsystem.GetOperatingSystem(); err == nil {
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)
}
// if we still have the original dockerinit binary from before we copied it locally, let's return the path to that, since that's more intuitive (the copied path is trivial to derive by hand given VERSION)
initPath := utils.DockerInitPath("")
if initPath == "" {
// if that fails, we'll just return the path from the daemon
initPath = daemon.SystemInitPath()
}
v := &types.Info{
ID: daemon.ID,
Containers: len(daemon.List()),
Images: imgcount,
Driver: daemon.GraphDriver().String(),
DriverStatus: daemon.GraphDriver().Status(),
IPv4Forwarding: !daemon.SystemConfig().IPv4ForwardingDisabled,
BridgeNfIptables: !daemon.SystemConfig().BridgeNfCallIptablesDisabled,
BridgeNfIp6tables: !daemon.SystemConfig().BridgeNfCallIp6tablesDisabled,
Debug: os.Getenv("DEBUG") != "",
NFd: fileutils.GetTotalUsedFds(),
NGoroutines: runtime.NumGoroutine(),
SystemTime: time.Now().Format(time.RFC3339Nano),
ExecutionDriver: daemon.ExecutionDriver().Name(),
LoggingDriver: daemon.defaultLogConfig.Type,
NEventsListener: daemon.EventsService.SubscribersCount(),
KernelVersion: kernelVersion,
OperatingSystem: operatingSystem,
IndexServerAddress: registry.IndexServer,
RegistryConfig: daemon.RegistryService.Config,
InitSha1: dockerversion.INITSHA1,
InitPath: initPath,
NCPU: runtime.NumCPU(),
MemTotal: meminfo.MemTotal,
DockerRootDir: daemon.Config().Root,
Labels: daemon.Config().Labels,
ExperimentalBuild: utils.ExperimentalBuild(),
}
// 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 = daemon.SystemConfig().MemoryLimit
v.SwapLimit = daemon.SystemConfig().SwapLimit
v.OomKillDisable = daemon.SystemConfig().OomKillDisable
v.CpuCfsPeriod = daemon.SystemConfig().CpuCfsPeriod
v.CpuCfsQuota = daemon.SystemConfig().CpuCfsQuota
}
if httpProxy := os.Getenv("http_proxy"); httpProxy != "" {
v.HttpProxy = httpProxy
}
if httpsProxy := os.Getenv("https_proxy"); httpsProxy != "" {
v.HttpsProxy = httpsProxy
}
if noProxy := os.Getenv("no_proxy"); noProxy != "" {
v.NoProxy = noProxy
}
if hostname, err := os.Hostname(); err == nil {
v.Name = hostname
}
return v, nil
}