fb45fe614d
These checks were added when we required a specific version of containerd
and runc (different versions were known to be incompatible). I don't think
we had a similar requirement for tini, so this check was redundant. Let's
remove the check altogether.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
(cherry picked from commit b585c64e2b)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
306 lines
10 KiB
Go
306 lines
10 KiB
Go
// +build !windows
|
|
|
|
package daemon // import "github.com/docker/docker/daemon"
|
|
|
|
import (
|
|
"context"
|
|
"fmt"
|
|
"os/exec"
|
|
"path/filepath"
|
|
"strings"
|
|
|
|
"github.com/docker/docker/api/types"
|
|
containertypes "github.com/docker/docker/api/types/container"
|
|
"github.com/docker/docker/pkg/sysinfo"
|
|
"github.com/pkg/errors"
|
|
"github.com/sirupsen/logrus"
|
|
)
|
|
|
|
// fillPlatformInfo fills the platform related info.
|
|
func (daemon *Daemon) fillPlatformInfo(v *types.Info, sysInfo *sysinfo.SysInfo) {
|
|
v.CgroupDriver = daemon.getCgroupDriver()
|
|
v.CgroupVersion = "1"
|
|
if sysInfo.CgroupUnified {
|
|
v.CgroupVersion = "2"
|
|
}
|
|
|
|
if v.CgroupDriver != cgroupNoneDriver {
|
|
v.MemoryLimit = sysInfo.MemoryLimit
|
|
v.SwapLimit = sysInfo.SwapLimit
|
|
v.KernelMemory = sysInfo.KernelMemory
|
|
v.KernelMemoryTCP = sysInfo.KernelMemoryTCP
|
|
v.OomKillDisable = sysInfo.OomKillDisable
|
|
v.CPUCfsPeriod = sysInfo.CPUCfs
|
|
v.CPUCfsQuota = sysInfo.CPUCfs
|
|
v.CPUShares = sysInfo.CPUShares
|
|
v.CPUSet = sysInfo.Cpuset
|
|
v.PidsLimit = sysInfo.PidsLimit
|
|
}
|
|
v.Runtimes = daemon.configStore.GetAllRuntimes()
|
|
v.DefaultRuntime = daemon.configStore.GetDefaultRuntimeName()
|
|
v.InitBinary = daemon.configStore.GetInitPath()
|
|
v.RuncCommit.ID = "N/A"
|
|
v.ContainerdCommit.ID = "N/A"
|
|
v.InitCommit.ID = "N/A"
|
|
|
|
defaultRuntimeBinary := daemon.configStore.GetRuntime(v.DefaultRuntime).Path
|
|
if rv, err := exec.Command(defaultRuntimeBinary, "--version").Output(); err == nil {
|
|
if _, _, commit, err := parseRuntimeVersion(string(rv)); err != nil {
|
|
logrus.Warnf("failed to parse %s version: %v", defaultRuntimeBinary, err)
|
|
} else {
|
|
v.RuncCommit.ID = commit
|
|
}
|
|
} else {
|
|
logrus.Warnf("failed to retrieve %s version: %v", defaultRuntimeBinary, err)
|
|
}
|
|
|
|
if rv, err := daemon.containerd.Version(context.Background()); err == nil {
|
|
v.ContainerdCommit.ID = rv.Revision
|
|
} else {
|
|
logrus.Warnf("failed to retrieve containerd version: %v", err)
|
|
}
|
|
|
|
defaultInitBinary := daemon.configStore.GetInitPath()
|
|
if rv, err := exec.Command(defaultInitBinary, "--version").Output(); err == nil {
|
|
if _, commit, err := parseInitVersion(string(rv)); err != nil {
|
|
logrus.Warnf("failed to parse %s version: %s", defaultInitBinary, err)
|
|
} else {
|
|
v.InitCommit.ID = commit
|
|
}
|
|
} else {
|
|
logrus.Warnf("failed to retrieve %s version: %s", defaultInitBinary, err)
|
|
}
|
|
|
|
// Set expected and actual commits to the same value to prevent the client
|
|
// showing that the version does not match the "expected" version/commit.
|
|
v.RuncCommit.Expected = v.RuncCommit.ID
|
|
v.ContainerdCommit.Expected = v.ContainerdCommit.ID
|
|
v.InitCommit.Expected = v.InitCommit.ID
|
|
|
|
if v.CgroupDriver == cgroupNoneDriver {
|
|
if v.CgroupVersion == "2" {
|
|
v.Warnings = append(v.Warnings, "WARNING: Running in rootless-mode without cgroups. Systemd is required to enable cgroups in rootless-mode.")
|
|
} else {
|
|
v.Warnings = append(v.Warnings, "WARNING: Running in rootless-mode without cgroups. To enable cgroups in rootless-mode, you need to boot the system in cgroup v2 mode.")
|
|
}
|
|
} else {
|
|
if !v.MemoryLimit {
|
|
v.Warnings = append(v.Warnings, "WARNING: No memory limit support")
|
|
}
|
|
if !v.SwapLimit {
|
|
v.Warnings = append(v.Warnings, "WARNING: No swap limit support")
|
|
}
|
|
if !v.KernelMemoryTCP && v.CgroupVersion == "1" {
|
|
// kernel memory is not available for cgroup v2.
|
|
// Warning is not printed on cgroup v2, because there is no action user can take.
|
|
v.Warnings = append(v.Warnings, "WARNING: No kernel memory TCP limit support")
|
|
}
|
|
if !v.OomKillDisable && v.CgroupVersion == "1" {
|
|
// oom kill disable is not available for cgroup v2.
|
|
// Warning is not printed on cgroup v2, because there is no action user can take.
|
|
v.Warnings = append(v.Warnings, "WARNING: No oom kill disable support")
|
|
}
|
|
if !v.CPUCfsQuota {
|
|
v.Warnings = append(v.Warnings, "WARNING: No cpu cfs quota support")
|
|
}
|
|
if !v.CPUCfsPeriod {
|
|
v.Warnings = append(v.Warnings, "WARNING: No cpu cfs period support")
|
|
}
|
|
if !v.CPUShares {
|
|
v.Warnings = append(v.Warnings, "WARNING: No cpu shares support")
|
|
}
|
|
if !v.CPUSet {
|
|
v.Warnings = append(v.Warnings, "WARNING: No cpuset support")
|
|
}
|
|
// TODO add fields for these options in types.Info
|
|
if !sysInfo.BlkioWeight && v.CgroupVersion == "2" {
|
|
// blkio weight is not available on cgroup v1 since kernel 5.0.
|
|
// Warning is not printed on cgroup v1, because there is no action user can take.
|
|
// On cgroup v2, blkio weight is implemented using io.weight
|
|
v.Warnings = append(v.Warnings, "WARNING: No io.weight support")
|
|
}
|
|
if !sysInfo.BlkioWeightDevice && v.CgroupVersion == "2" {
|
|
v.Warnings = append(v.Warnings, "WARNING: No io.weight (per device) support")
|
|
}
|
|
if !sysInfo.BlkioReadBpsDevice {
|
|
if v.CgroupVersion == "2" {
|
|
v.Warnings = append(v.Warnings, "WARNING: No io.max (rbps) support")
|
|
} else {
|
|
v.Warnings = append(v.Warnings, "WARNING: No blkio throttle.read_bps_device support")
|
|
}
|
|
}
|
|
if !sysInfo.BlkioWriteBpsDevice {
|
|
if v.CgroupVersion == "2" {
|
|
v.Warnings = append(v.Warnings, "WARNING: No io.max (wbps) support")
|
|
} else {
|
|
v.Warnings = append(v.Warnings, "WARNING: No blkio throttle.write_bps_device support")
|
|
}
|
|
}
|
|
if !sysInfo.BlkioReadIOpsDevice {
|
|
if v.CgroupVersion == "2" {
|
|
v.Warnings = append(v.Warnings, "WARNING: No io.max (riops) support")
|
|
} else {
|
|
v.Warnings = append(v.Warnings, "WARNING: No blkio throttle.read_iops_device support")
|
|
}
|
|
}
|
|
if !sysInfo.BlkioWriteIOpsDevice {
|
|
if v.CgroupVersion == "2" {
|
|
v.Warnings = append(v.Warnings, "WARNING: No io.max (wiops) support")
|
|
} else {
|
|
v.Warnings = append(v.Warnings, "WARNING: No blkio throttle.write_iops_device support")
|
|
}
|
|
}
|
|
}
|
|
if !v.IPv4Forwarding {
|
|
v.Warnings = append(v.Warnings, "WARNING: IPv4 forwarding is disabled")
|
|
}
|
|
if !v.BridgeNfIptables {
|
|
v.Warnings = append(v.Warnings, "WARNING: bridge-nf-call-iptables is disabled")
|
|
}
|
|
if !v.BridgeNfIP6tables {
|
|
v.Warnings = append(v.Warnings, "WARNING: bridge-nf-call-ip6tables is disabled")
|
|
}
|
|
}
|
|
|
|
func (daemon *Daemon) fillPlatformVersion(v *types.Version) {
|
|
if rv, err := daemon.containerd.Version(context.Background()); err == nil {
|
|
v.Components = append(v.Components, types.ComponentVersion{
|
|
Name: "containerd",
|
|
Version: rv.Version,
|
|
Details: map[string]string{
|
|
"GitCommit": rv.Revision,
|
|
},
|
|
})
|
|
}
|
|
|
|
defaultRuntime := daemon.configStore.GetDefaultRuntimeName()
|
|
defaultRuntimeBinary := daemon.configStore.GetRuntime(defaultRuntime).Path
|
|
if rv, err := exec.Command(defaultRuntimeBinary, "--version").Output(); err == nil {
|
|
if _, ver, commit, err := parseRuntimeVersion(string(rv)); err != nil {
|
|
logrus.Warnf("failed to parse %s version: %v", defaultRuntimeBinary, err)
|
|
} else {
|
|
v.Components = append(v.Components, types.ComponentVersion{
|
|
Name: defaultRuntime,
|
|
Version: ver,
|
|
Details: map[string]string{
|
|
"GitCommit": commit,
|
|
},
|
|
})
|
|
}
|
|
} else {
|
|
logrus.Warnf("failed to retrieve %s version: %v", defaultRuntimeBinary, err)
|
|
}
|
|
|
|
defaultInitBinary := daemon.configStore.GetInitPath()
|
|
if rv, err := exec.Command(defaultInitBinary, "--version").Output(); err == nil {
|
|
if ver, commit, err := parseInitVersion(string(rv)); err != nil {
|
|
logrus.Warnf("failed to parse %s version: %s", defaultInitBinary, err)
|
|
} else {
|
|
v.Components = append(v.Components, types.ComponentVersion{
|
|
Name: filepath.Base(defaultInitBinary),
|
|
Version: ver,
|
|
Details: map[string]string{
|
|
"GitCommit": commit,
|
|
},
|
|
})
|
|
}
|
|
} else {
|
|
logrus.Warnf("failed to retrieve %s version: %s", defaultInitBinary, err)
|
|
}
|
|
}
|
|
|
|
func fillDriverWarnings(v *types.Info) {
|
|
for _, pair := range v.DriverStatus {
|
|
if pair[0] == "Data loop file" {
|
|
msg := fmt.Sprintf("WARNING: %s: usage of loopback devices is "+
|
|
"strongly discouraged for production use.\n "+
|
|
"Use `--storage-opt dm.thinpooldev` to specify a custom block storage device.", v.Driver)
|
|
|
|
v.Warnings = append(v.Warnings, msg)
|
|
continue
|
|
}
|
|
if pair[0] == "Supports d_type" && pair[1] == "false" {
|
|
backingFs := getBackingFs(v)
|
|
|
|
msg := fmt.Sprintf("WARNING: %s: the backing %s filesystem is formatted without d_type support, which leads to incorrect behavior.\n", v.Driver, backingFs)
|
|
if backingFs == "xfs" {
|
|
msg += " Reformat the filesystem with ftype=1 to enable d_type support.\n"
|
|
}
|
|
msg += " Running without d_type support will not be supported in future releases."
|
|
|
|
v.Warnings = append(v.Warnings, msg)
|
|
continue
|
|
}
|
|
}
|
|
}
|
|
|
|
func getBackingFs(v *types.Info) string {
|
|
for _, pair := range v.DriverStatus {
|
|
if pair[0] == "Backing Filesystem" {
|
|
return pair[1]
|
|
}
|
|
}
|
|
return ""
|
|
}
|
|
|
|
// parseInitVersion parses a Tini version string, and extracts the "version"
|
|
// and "git commit" from the output.
|
|
//
|
|
// Output example from `docker-init --version`:
|
|
//
|
|
// tini version 0.18.0 - git.fec3683
|
|
func parseInitVersion(v string) (version string, commit string, err error) {
|
|
parts := strings.Split(v, " - ")
|
|
|
|
if len(parts) >= 2 {
|
|
gitParts := strings.Split(strings.TrimSpace(parts[1]), ".")
|
|
if len(gitParts) == 2 && gitParts[0] == "git" {
|
|
commit = gitParts[1]
|
|
}
|
|
}
|
|
parts[0] = strings.TrimSpace(parts[0])
|
|
if strings.HasPrefix(parts[0], "tini version ") {
|
|
version = strings.TrimPrefix(parts[0], "tini version ")
|
|
}
|
|
if version == "" && commit == "" {
|
|
err = errors.Errorf("unknown output format: %s", v)
|
|
}
|
|
return version, commit, err
|
|
}
|
|
|
|
// parseRuntimeVersion parses the output of `[runtime] --version` and extracts the
|
|
// "name", "version" and "git commit" from the output.
|
|
//
|
|
// Output example from `runc --version`:
|
|
//
|
|
// runc version 1.0.0-rc5+dev
|
|
// commit: 69663f0bd4b60df09991c08812a60108003fa340
|
|
// spec: 1.0.0
|
|
func parseRuntimeVersion(v string) (runtime string, version string, commit string, err error) {
|
|
lines := strings.Split(strings.TrimSpace(v), "\n")
|
|
for _, line := range lines {
|
|
if strings.Contains(line, "version") {
|
|
s := strings.Split(line, "version")
|
|
runtime = strings.TrimSpace(s[0])
|
|
version = strings.TrimSpace(s[len(s)-1])
|
|
continue
|
|
}
|
|
if strings.HasPrefix(line, "commit:") {
|
|
commit = strings.TrimSpace(strings.TrimPrefix(line, "commit:"))
|
|
continue
|
|
}
|
|
}
|
|
if version == "" && commit == "" {
|
|
err = errors.Errorf("unknown output format: %s", v)
|
|
}
|
|
return runtime, version, commit, err
|
|
}
|
|
|
|
func (daemon *Daemon) cgroupNamespacesEnabled(sysInfo *sysinfo.SysInfo) bool {
|
|
return sysInfo.CgroupNamespaces && containertypes.CgroupnsMode(daemon.configStore.CgroupNamespaceMode).IsPrivate()
|
|
}
|
|
|
|
// Rootless returns true if daemon is running in rootless mode
|
|
func (daemon *Daemon) Rootless() bool {
|
|
return daemon.configStore.Rootless
|
|
}
|