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109 lines
3 KiB
Go
109 lines
3 KiB
Go
// +build windows
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package windows
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import (
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"fmt"
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"strings"
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"sync"
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"github.com/Sirupsen/logrus"
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"github.com/docker/docker/daemon/execdriver"
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"github.com/docker/docker/dockerversion"
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"github.com/docker/docker/pkg/parsers"
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"github.com/docker/engine-api/types/container"
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)
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// This is a daemon development variable only and should not be
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// used for running production containers on Windows.
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var dummyMode bool
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// This allows the daemon to terminate containers rather than shutdown
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// This allows the daemon to force kill (HCS terminate) rather than shutdown
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var forceKill bool
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// DefaultIsolation allows users to specify a default isolation mode for
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// when running a container on Windows. For example docker daemon -D
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// --exec-opt isolation=hyperv will cause Windows to always run containers
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// as Hyper-V containers unless otherwise specified.
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var DefaultIsolation container.IsolationLevel = "process"
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// Define name and version for windows
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var (
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DriverName = "Windows 1854"
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Version = dockerversion.Version + " " + dockerversion.GitCommit
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)
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type activeContainer struct {
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command *execdriver.Command
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}
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// Driver contains all information for windows driver,
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// it implements execdriver.Driver
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type Driver struct {
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root string
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activeContainers map[string]*activeContainer
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sync.Mutex
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}
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// Name implements the exec driver Driver interface.
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func (d *Driver) Name() string {
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return fmt.Sprintf("\n Name: %s\n Build: %s \n Default Isolation: %s", DriverName, Version, DefaultIsolation)
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}
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// NewDriver returns a new windows driver, called from NewDriver of execdriver.
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func NewDriver(root string, options []string) (*Driver, error) {
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for _, option := range options {
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key, val, err := parsers.ParseKeyValueOpt(option)
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if err != nil {
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return nil, err
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}
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key = strings.ToLower(key)
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switch key {
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case "dummy":
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switch val {
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case "1":
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dummyMode = true
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logrus.Warn("Using dummy mode in Windows exec driver. This is for development use only!")
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}
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case "forcekill":
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switch val {
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case "1":
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forceKill = true
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logrus.Warn("Using force kill mode in Windows exec driver. This is for testing purposes only.")
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}
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case "isolation":
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if !container.IsolationLevel(val).IsValid() {
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return nil, fmt.Errorf("Unrecognised exec driver option 'isolation':'%s'", val)
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}
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if container.IsolationLevel(val).IsHyperV() {
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DefaultIsolation = "hyperv"
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}
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logrus.Infof("Windows default isolation level: '%s'", val)
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default:
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return nil, fmt.Errorf("Unrecognised exec driver option %s\n", key)
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}
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}
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return &Driver{
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root: root,
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activeContainers: make(map[string]*activeContainer),
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}, nil
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}
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// setupEnvironmentVariables convert a string array of environment variables
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// into a map as required by the HCS. Source array is in format [v1=k1] [v2=k2] etc.
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func setupEnvironmentVariables(a []string) map[string]string {
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r := make(map[string]string)
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for _, s := range a {
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arr := strings.Split(s, "=")
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if len(arr) == 2 {
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r[arr[0]] = arr[1]
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}
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}
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return r
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}
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