// +build solaris,cgo
package daemon
import (
"fmt"
"net"
"strconv"
"github.com/docker/docker/api/types"
containertypes "github.com/docker/docker/api/types/container"
"github.com/docker/docker/container"
"github.com/docker/docker/image"
"github.com/docker/docker/layer"
"github.com/docker/docker/pkg/fileutils"
"github.com/docker/docker/pkg/idtools"
"github.com/docker/docker/pkg/parsers/kernel"
"github.com/docker/docker/pkg/sysinfo"
refstore "github.com/docker/docker/reference"
"github.com/docker/libnetwork"
nwconfig "github.com/docker/libnetwork/config"
"github.com/docker/libnetwork/drivers/solaris/bridge"
"github.com/docker/libnetwork/netlabel"
"github.com/docker/libnetwork/netutils"
lntypes "github.com/docker/libnetwork/types"
"github.com/opencontainers/runtime-spec/specs-go"
"github.com/opencontainers/selinux/go-selinux/label"
"github.com/pkg/errors"
"github.com/sirupsen/logrus"
)
//#include <zone.h>
import "C"
const (
defaultVirtualSwitch = "Virtual Switch"
platformSupported = true
solarisMinCPUShares = 1
solarisMaxCPUShares = 65535
)
func getMemoryResources(config containertypes.Resources) specs.CappedMemory {
memory := specs.CappedMemory{}
if config.Memory > 0 {
memory.Physical = strconv.FormatInt(config.Memory, 10)
}
if config.MemorySwap != 0 {
memory.Swap = strconv.FormatInt(config.MemorySwap, 10)
}
return memory
}
func getCPUResources(config containertypes.Resources) specs.CappedCPU {
cpu := specs.CappedCPU{}
if config.CpusetCpus != "" {
cpu.Ncpus = config.CpusetCpus
}
return cpu
}
func (daemon *Daemon) cleanupMountsByID(id string) error {
return nil
}
func (daemon *Daemon) parseSecurityOpt(container *container.Container, hostConfig *containertypes.HostConfig) error {
return parseSecurityOpt(container, hostConfig)
}
func parseSecurityOpt(container *container.Container, config *containertypes.HostConfig) error {
//Since config.SecurityOpt is specifically defined as a "List of string values to
//customize labels for MLs systems, such as SELinux"
//until we figure out how to map to Trusted Extensions
//this is being disabled for now on Solaris
var (
labelOpts []string
err error
)
if len(config.SecurityOpt) > 0 {
return errors.New("Security options are not supported on Solaris")
}
container.ProcessLabel, container.MountLabel, err = label.InitLabels(labelOpts)
return err
}
func setupRemappedRoot(config *Config) ([]idtools.IDMap, []idtools.IDMap, error) {
return nil, nil, nil
}
func setupDaemonRoot(config *Config, rootDir string, rootUID, rootGID int) error {
return nil
}
func (daemon *Daemon) getLayerInit() func(string) error {
return nil
}
func checkKernel() error {
// solaris can rely upon checkSystem() below, we don't skew kernel versions
return nil
}
func (daemon *Daemon) getCgroupDriver() string {
return ""
}
func (daemon *Daemon) adaptContainerSettings(hostConfig *containertypes.HostConfig, adjustCPUShares bool) error {
if hostConfig.CPUShares < 0 {
logrus.Warnf("Changing requested CPUShares of %d to minimum allowed of %d", hostConfig.CPUShares, solarisMinCPUShares)
hostConfig.CPUShares = solarisMinCPUShares
} else if hostConfig.CPUShares > solarisMaxCPUShares {
logrus.Warnf("Changing requested CPUShares of %d to maximum allowed of %d", hostConfig.CPUShares, solarisMaxCPUShares)
hostConfig.CPUShares = solarisMaxCPUShares
}
if hostConfig.Memory > 0 && hostConfig.MemorySwap == 0 {
// By default, MemorySwap is set to twice the size of Memory.
hostConfig.MemorySwap = hostConfig.Memory * 2
}
if hostConfig.ShmSize != 0 {
hostConfig.ShmSize = container.DefaultSHMSize
}
if hostConfig.OomKillDisable == nil {
defaultOomKillDisable := false
hostConfig.OomKillDisable = &defaultOomKillDisable
}
return nil
}
// UsingSystemd returns true if cli option includes native.cgroupdriver=systemd
func UsingSystemd(config *Config) bool {
return false
}
// verifyPlatformContainerSettings performs platform-specific validation of the
// hostconfig and config structures.
func verifyPlatformContainerSettings(daemon *Daemon, hostConfig *containertypes.HostConfig, config *containertypes.Config, update bool) ([]string, error) {
fixMemorySwappiness(resources)
warnings := []string{}
sysInfo := sysinfo.New(true)
// NOTE: We do not enforce a minimum value for swap limits for zones on Solaris and
// therefore we will not do that for Docker container either.
if hostConfig.Memory > 0 && !sysInfo.MemoryLimit {
warnings = append(warnings, "Your kernel does not support memory limit capabilities. Limitation discarded.")
logrus.Warnf("Your kernel does not support memory limit capabilities. Limitation discarded.")
hostConfig.Memory = 0
hostConfig.MemorySwap = -1
}
if hostConfig.Memory > 0 && hostConfig.MemorySwap != -1 && !sysInfo.SwapLimit {
warnings = append(warnings, "Your kernel does not support swap limit capabilities, memory limited without swap.")
logrus.Warnf("Your kernel does not support swap limit capabilities, memory limited without swap.")
hostConfig.MemorySwap = -1
}
if hostConfig.Memory > 0 && hostConfig.MemorySwap > 0 && hostConfig.MemorySwap < hostConfig.Memory {
return warnings, fmt.Errorf("Minimum memoryswap limit should be larger than memory limit, see usage.")
}
// Solaris NOTE: We allow and encourage setting the swap without setting the memory limit.
if hostConfig.MemorySwappiness != nil && !sysInfo.MemorySwappiness {
warnings = append(warnings, "Your kernel does not support memory swappiness capabilities, memory swappiness discarded.")
logrus.Warnf("Your kernel does not support memory swappiness capabilities, memory swappiness discarded.")
hostConfig.MemorySwappiness = nil
}
if hostConfig.MemoryReservation > 0 && !sysInfo.MemoryReservation {
warnings = append(warnings, "Your kernel does not support memory soft limit capabilities. Limitation discarded.")
logrus.Warnf("Your kernel does not support memory soft limit capabilities. Limitation discarded.")
hostConfig.MemoryReservation = 0
}
if hostConfig.Memory > 0 && hostConfig.MemoryReservation > 0 && hostConfig.Memory < hostConfig.MemoryReservation {
return warnings, fmt.Errorf("Minimum memory limit should be larger than memory reservation limit, see usage.")
}
if hostConfig.KernelMemory > 0 && !sysInfo.KernelMemory {
warnings = append(warnings, "Your kernel does not support kernel memory limit capabilities. Limitation discarded.")
logrus.Warnf("Your kernel does not support kernel memory limit capabilities. Limitation discarded.")
hostConfig.KernelMemory = 0
}
if hostConfig.CPUShares != 0 && !sysInfo.CPUShares {
warnings = append(warnings, "Your kernel does not support CPU shares. Shares discarded.")
logrus.Warnf("Your kernel does not support CPU shares. Shares discarded.")
hostConfig.CPUShares = 0
}
if hostConfig.CPUShares < 0 {
warnings = append(warnings, "Invalid CPUShares value. Must be positive. Discarding.")
logrus.Warnf("Invalid CPUShares value. Must be positive. Discarding.")
hostConfig.CPUQuota = 0
}
if hostConfig.CPUShares > 0 && !sysinfo.IsCPUSharesAvailable() {
warnings = append(warnings, "Global zone default scheduling class not FSS. Discarding shares.")
logrus.Warnf("Global zone default scheduling class not FSS. Discarding shares.")
hostConfig.CPUShares = 0
}
// Solaris NOTE: Linux does not do negative checking for CPUShares and Quota here. But it makes sense to.
if hostConfig.CPUPeriod > 0 && !sysInfo.CPUCfsPeriod {
warnings = append(warnings, "Your kernel does not support CPU cfs period. Period discarded.")
logrus.Warnf("Your kernel does not support CPU cfs period. Period discarded.")
if hostConfig.CPUQuota > 0 {
warnings = append(warnings, "Quota will be applied on default period, not period specified.")
logrus.Warnf("Quota will be applied on default period, not period specified.")
}
hostConfig.CPUPeriod = 0
}
if hostConfig.CPUQuota != 0 && !sysInfo.CPUCfsQuota {
warnings = append(warnings, "Your kernel does not support CPU cfs quota. Quota discarded.")
logrus.Warnf("Your kernel does not support CPU cfs quota. Quota discarded.")
hostConfig.CPUQuota = 0
}
if hostConfig.CPUQuota < 0 {
warnings = append(warnings, "Invalid CPUQuota value. Must be positive. Discarding.")
logrus.Warnf("Invalid CPUQuota value. Must be positive. Discarding.")
hostConfig.CPUQuota = 0
}
if (hostConfig.CpusetCpus != "" || hostConfig.CpusetMems != "") && !sysInfo.Cpuset {
warnings = append(warnings, "Your kernel does not support cpuset. Cpuset discarded.")
logrus.Warnf("Your kernel does not support cpuset. Cpuset discarded.")
hostConfig.CpusetCpus = ""
hostConfig.CpusetMems = ""
}
cpusAvailable, err := sysInfo.IsCpusetCpusAvailable(hostConfig.CpusetCpus)
if err != nil {
return warnings, fmt.Errorf("Invalid value %s for cpuset cpus.", hostConfig.CpusetCpus)
}
if !cpusAvailable {
return warnings, fmt.Errorf("Requested CPUs are not available - requested %s, available: %s.", hostConfig.CpusetCpus, sysInfo.Cpus)
}
memsAvailable, err := sysInfo.IsCpusetMemsAvailable(hostConfig.CpusetMems)
if err != nil {
return warnings, fmt.Errorf("Invalid value %s for cpuset mems.", hostConfig.CpusetMems)
}
if !memsAvailable {
return warnings, fmt.Errorf("Requested memory nodes are not available - requested %s, available: %s.", hostConfig.CpusetMems, sysInfo.Mems)
}
if hostConfig.BlkioWeight > 0 && !sysInfo.BlkioWeight {
warnings = append(warnings, "Your kernel does not support Block I/O weight. Weight discarded.")
logrus.Warnf("Your kernel does not support Block I/O weight. Weight discarded.")
hostConfig.BlkioWeight = 0
}
if hostConfig.OomKillDisable != nil && !sysInfo.OomKillDisable {
*hostConfig.OomKillDisable = false
// Don't warn; this is the default setting but only applicable to Linux
}
if sysInfo.IPv4ForwardingDisabled {
warnings = append(warnings, "IPv4 forwarding is disabled. Networking will not work.")
logrus.Warnf("IPv4 forwarding is disabled. Networking will not work")
}
// Solaris NOTE: We do not allow setting Linux specific options, so check and warn for all of them.
if hostConfig.CapAdd != nil || hostConfig.CapDrop != nil {
warnings = append(warnings, "Adding or dropping kernel capabilities unsupported on Solaris.Discarding capabilities lists.")
logrus.Warnf("Adding or dropping kernel capabilities unsupported on Solaris.Discarding capabilities lists.")
hostConfig.CapAdd = nil
hostConfig.CapDrop = nil
}
if hostConfig.GroupAdd != nil {
warnings = append(warnings, "Additional groups unsupported on Solaris.Discarding groups lists.")
logrus.Warnf("Additional groups unsupported on Solaris.Discarding groups lists.")
hostConfig.GroupAdd = nil
}
if hostConfig.IpcMode != "" {
warnings = append(warnings, "IPC namespace assignment unsupported on Solaris.Discarding IPC setting.")
logrus.Warnf("IPC namespace assignment unsupported on Solaris.Discarding IPC setting.")
hostConfig.IpcMode = ""
}
if hostConfig.PidMode != "" {
warnings = append(warnings, "PID namespace setting unsupported on Solaris. Running container in host PID namespace.")
logrus.Warnf("PID namespace setting unsupported on Solaris. Running container in host PID namespace.")
hostConfig.PidMode = ""
}
if hostConfig.Privileged {
warnings = append(warnings, "Privileged mode unsupported on Solaris. Discarding privileged mode setting.")
logrus.Warnf("Privileged mode unsupported on Solaris. Discarding privileged mode setting.")
hostConfig.Privileged = false
}
if hostConfig.UTSMode != "" {
warnings = append(warnings, "UTS namespace assignment unsupported on Solaris.Discarding UTS setting.")
logrus.Warnf("UTS namespace assignment unsupported on Solaris.Discarding UTS setting.")
hostConfig.UTSMode = ""
}
if hostConfig.CgroupParent != "" {
warnings = append(warnings, "Specifying Cgroup parent unsupported on Solaris. Discarding cgroup parent setting.")
logrus.Warnf("Specifying Cgroup parent unsupported on Solaris. Discarding cgroup parent setting.")
hostConfig.CgroupParent = ""
}
if hostConfig.Ulimits != nil {
warnings = append(warnings, "Specifying ulimits unsupported on Solaris. Discarding ulimits setting.")
logrus.Warnf("Specifying ulimits unsupported on Solaris. Discarding ulimits setting.")
hostConfig.Ulimits = nil
}
return warnings, nil
}
// reloadPlatform updates configuration with platform specific options
// and updates the passed attributes
func (daemon *Daemon) reloadPlatform(config *Config, attributes map[string]string) {
}
// verifyDaemonSettings performs validation of daemon config struct
func verifyDaemonSettings(config *Config) error {
if config.DefaultRuntime == "" {
config.DefaultRuntime = stockRuntimeName
}
if config.Runtimes == nil {
config.Runtimes = make(map[string]types.Runtime)
}
stockRuntimeOpts := []string{}
config.Runtimes[stockRuntimeName] = types.Runtime{Path: DefaultRuntimeBinary, Args: stockRuntimeOpts}
// checkSystem validates platform-specific requirements
return nil
}
func checkSystem() error {
// check OS version for compatibility, ensure running in global zone
var err error
var id C.zoneid_t
if id, err = C.getzoneid(); err != nil {
return fmt.Errorf("Exiting. Error getting zone id: %+v", err)
}
if int(id) != 0 {
return fmt.Errorf("Exiting because the Docker daemon is not running in the global zone")
}
v, err := kernel.GetKernelVersion()
if kernel.CompareKernelVersion(*v, kernel.VersionInfo{Kernel: 5, Major: 12, Minor: 0}) < 0 {
return fmt.Errorf("Your Solaris kernel version: %s doesn't support Docker. Please upgrade to 5.12.0", v.String())
}
return err
}
// configureMaxThreads sets the Go runtime max threads threshold
// which is 90% of the kernel setting from /proc/sys/kernel/threads-max
func configureMaxThreads(config *Config) error {
return nil
}
// configureKernelSecuritySupport configures and validate security support for the kernel
func configureKernelSecuritySupport(config *config.Config, driverNames []string) error {
return nil
}
func (daemon *Daemon) initNetworkController(config *Config, activeSandboxes map[string]interface{}) (libnetwork.NetworkController, error) {
netOptions, err := daemon.networkOptions(config, daemon.PluginStore, activeSandboxes)
if err != nil {
return nil, err
}
controller, err := libnetwork.New(netOptions...)
if err != nil {
return nil, fmt.Errorf("error obtaining controller instance: %v", err)
}
// Initialize default network on "null"
if _, err := controller.NewNetwork("null", "none", "", libnetwork.NetworkOptionPersist(false)); err != nil {
return nil, fmt.Errorf("Error creating default 'null' network: %v", err)
}
if !config.DisableBridge {
// Initialize default driver "bridge"
if err := initBridgeDriver(controller, config); err != nil {
return nil, err
}
}
return controller, nil
}
func initBridgeDriver(controller libnetwork.NetworkController, config *Config) error {
if n, err := controller.NetworkByName("bridge"); err == nil {
if err = n.Delete(); err != nil {
return fmt.Errorf("could not delete the default bridge network: %v", err)
}
}
bridgeName := bridge.DefaultBridgeName
if config.bridgeConfig.Iface != "" {
bridgeName = config.bridgeConfig.Iface
}
netOption := map[string]string{
bridge.BridgeName: bridgeName,
bridge.DefaultBridge: strconv.FormatBool(true),
netlabel.DriverMTU: strconv.Itoa(config.Mtu),
bridge.EnableICC: strconv.FormatBool(config.bridgeConfig.InterContainerCommunication),
}
// --ip processing
if config.bridgeConfig.DefaultIP != nil {
netOption[bridge.DefaultBindingIP] = config.bridgeConfig.DefaultIP.String()
}
var ipamV4Conf *libnetwork.IpamConf
ipamV4Conf = &libnetwork.IpamConf{AuxAddresses: make(map[string]string)}
nwList, _, err := netutils.ElectInterfaceAddresses(bridgeName)
if err != nil {
return errors.Wrap(err, "list bridge addresses failed")
}
nw := nwList[0]
if len(nwList) > 1 && config.bridgeConfig.FixedCIDR != "" {
_, fCIDR, err := net.ParseCIDR(config.bridgeConfig.FixedCIDR)
if err != nil {
return errors.Wrap(err, "parse CIDR failed")
}
// Iterate through in case there are multiple addresses for the bridge
for _, entry := range nwList {
if fCIDR.Contains(entry.IP) {
nw = entry
break
}
}
}
ipamV4Conf.PreferredPool = lntypes.GetIPNetCanonical(nw).String()
hip, _ := lntypes.GetHostPartIP(nw.IP, nw.Mask)
if hip.IsGlobalUnicast() {
ipamV4Conf.Gateway = nw.IP.String()
}
if config.bridgeConfig.IP != "" {
ipamV4Conf.PreferredPool = config.bridgeConfig.IP
ip, _, err := net.ParseCIDR(config.bridgeConfig.IP)
if err != nil {
return err
}
ipamV4Conf.Gateway = ip.String()
} else if bridgeName == bridge.DefaultBridgeName && ipamV4Conf.PreferredPool != "" {
logrus.Infof("Default bridge (%s) is assigned with an IP address %s. Daemon option --bip can be used to set a preferred IP address", bridgeName, ipamV4Conf.PreferredPool)
}
if config.bridgeConfig.FixedCIDR != "" {
_, fCIDR, err := net.ParseCIDR(config.bridgeConfig.FixedCIDR)
if err != nil {
return err
}
ipamV4Conf.SubPool = fCIDR.String()
}
if config.bridgeConfig.DefaultGatewayIPv4 != nil {
ipamV4Conf.AuxAddresses["DefaultGatewayIPv4"] = config.bridgeConfig.DefaultGatewayIPv4.String()
}
v4Conf := []*libnetwork.IpamConf{ipamV4Conf}
v6Conf := []*libnetwork.IpamConf{}
// Initialize default network on "bridge" with the same name
_, err = controller.NewNetwork("bridge", "bridge", "",
libnetwork.NetworkOptionDriverOpts(netOption),
libnetwork.NetworkOptionIpam("default", "", v4Conf, v6Conf, nil),
libnetwork.NetworkOptionDeferIPv6Alloc(false))
if err != nil {
return fmt.Errorf("Error creating default 'bridge' network: %v", err)
}
return nil
}
// registerLinks sets up links between containers and writes the
// configuration out for persistence.
func (daemon *Daemon) registerLinks(container *container.Container, hostConfig *containertypes.HostConfig) error {
return nil
}
func (daemon *Daemon) cleanupMounts() error {
return nil
}
// conditionalMountOnStart is a platform specific helper function during the
// container start to call mount.
func (daemon *Daemon) conditionalMountOnStart(container *container.Container) error {
return daemon.Mount(container)
}
// conditionalUnmountOnCleanup is a platform specific helper function called
// during the cleanup of a container to unmount.
func (daemon *Daemon) conditionalUnmountOnCleanup(container *container.Container) error {
return daemon.Unmount(container)
}
func restoreCustomImage(is image.Store, ls layer.Store, rs refstore.Store) error {
// Solaris has no custom images to register
return nil
}
func driverOptions(config *Config) []nwconfig.Option {
return []nwconfig.Option{}
}
func (daemon *Daemon) stats(c *container.Container) (*types.StatsJSON, error) {
return nil, nil
}
// setDefaultIsolation determine the default isolation mode for the
// daemon to run in. This is only applicable on Windows
func (daemon *Daemon) setDefaultIsolation() error {
return nil
}
func rootFSToAPIType(rootfs *image.RootFS) types.RootFS {
return types.RootFS{}
}
func setupDaemonProcess(config *Config) error {
return nil
}
func (daemon *Daemon) setupSeccompProfile() error {
return nil
}
func getRealPath(path string) (string, error) {
return fileutils.ReadSymlinkedDirectory(path)
}