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moby--moby/daemon/oci_solaris.go

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package daemon
import (
"fmt"
"path/filepath"
"sort"
"strconv"
containertypes "github.com/docker/docker/api/types/container"
"github.com/docker/docker/container"
"github.com/docker/docker/oci"
"github.com/docker/libnetwork"
"github.com/opencontainers/runtime-spec/specs-go"
)
func setResources(s *specs.Spec, r containertypes.Resources) error {
mem := getMemoryResources(r)
s.Solaris.CappedMemory = &mem
capCPU := getCPUResources(r)
s.Solaris.CappedCPU = &capCPU
return nil
}
func setUser(s *specs.Spec, c *container.Container) error {
uid, gid, additionalGids, err := getUser(c, c.Config.User)
if err != nil {
return err
}
s.Process.User.UID = uid
s.Process.User.GID = gid
s.Process.User.AdditionalGids = additionalGids
return nil
}
func getUser(c *container.Container, username string) (uint32, uint32, []uint32, error) {
return 0, 0, nil, nil
}
func (daemon *Daemon) getRunzAnet(ep libnetwork.Endpoint) (specs.Anet, error) {
var (
linkName string
lowerLink string
defRouter string
)
epInfo := ep.Info()
if epInfo == nil {
return specs.Anet{}, fmt.Errorf("invalid endpoint")
}
nw, err := daemon.GetNetworkByName(ep.Network())
if err != nil {
return specs.Anet{}, fmt.Errorf("Failed to get network %s: %v", ep.Network(), err)
}
// Evaluate default router, linkname and lowerlink for interface endpoint
switch nw.Type() {
case "bridge":
defRouter = epInfo.Gateway().String()
linkName = "net0" // Should always be net0 for a container
// TODO We construct lowerlink here exactly as done for solaris bridge
// initialization. Need modular code to reuse.
options := nw.Info().DriverOptions()
nwName := options["com.docker.network.bridge.name"]
lastChar := nwName[len(nwName)-1:]
if _, err = strconv.Atoi(lastChar); err != nil {
lowerLink = nwName + "_0"
} else {
lowerLink = nwName
}
case "overlay":
defRouter = ""
linkName = "net1"
// TODO Follows generateVxlanName() in solaris overlay.
id := nw.ID()
if len(nw.ID()) > 12 {
id = nw.ID()[:12]
}
lowerLink = "vx_" + id + "_0"
}
runzanet := specs.Anet{
Linkname: linkName,
Lowerlink: lowerLink,
Allowedaddr: epInfo.Iface().Address().String(),
Configallowedaddr: "true",
Defrouter: defRouter,
Linkprotection: "mac-nospoof, ip-nospoof",
Macaddress: epInfo.Iface().MacAddress().String(),
}
return runzanet, nil
}
func (daemon *Daemon) setNetworkInterface(s *specs.Spec, c *container.Container) error {
var anets []specs.Anet
sb, err := daemon.netController.SandboxByID(c.NetworkSettings.SandboxID)
if err != nil {
return fmt.Errorf("Could not obtain sandbox for container")
}
// Populate interfaces required for each endpoint
for _, ep := range sb.Endpoints() {
runzanet, err := daemon.getRunzAnet(ep)
if err != nil {
return fmt.Errorf("Failed to get interface information for endpoint %d: %v", ep.ID(), err)
}
anets = append(anets, runzanet)
}
s.Solaris.Anet = anets
if anets != nil {
s.Solaris.Milestone = "svc:/milestone/container:default"
}
return nil
}
func (daemon *Daemon) populateCommonSpec(s *specs.Spec, c *container.Container) error {
linkedEnv, err := daemon.setupLinkedContainers(c)
if err != nil {
return err
}
s.Root = specs.Root{
Path: filepath.Dir(c.BaseFS),
Readonly: c.HostConfig.ReadonlyRootfs,
}
if err := c.SetupWorkingDirectory(daemon.idMappings.RootPair()); err != nil {
return err
}
cwd := c.Config.WorkingDir
s.Process.Args = append([]string{c.Path}, c.Args...)
s.Process.Cwd = cwd
s.Process.Env = c.CreateDaemonEnvironment(c.Config.Tty, linkedEnv)
s.Process.Terminal = c.Config.Tty
s.Hostname = c.FullHostname()
return nil
}
func (daemon *Daemon) createSpec(c *container.Container) (*specs.Spec, error) {
s := oci.DefaultSpec()
if err := daemon.populateCommonSpec(&s, c); err != nil {
return nil, err
}
if err := setResources(&s, c.HostConfig.Resources); err != nil {
return nil, fmt.Errorf("runtime spec resources: %v", err)
}
if err := setUser(&s, c); err != nil {
return nil, fmt.Errorf("spec user: %v", err)
}
if err := daemon.setNetworkInterface(&s, c); err != nil {
return nil, err
}
if err := daemon.setupIpcDirs(c); err != nil {
return nil, err
}
ms, err := daemon.setupMounts(c)
if err != nil {
return nil, err
}
ms = append(ms, c.IpcMounts()...)
tmpfsMounts, err := c.TmpfsMounts()
if err != nil {
return nil, err
}
ms = append(ms, tmpfsMounts...)
sort.Sort(mounts(ms))
return (*specs.Spec)(&s), nil
}
// mergeUlimits merge the Ulimits from HostConfig with daemon defaults, and update HostConfig
// It will do nothing on non-Linux platform
func (daemon *Daemon) mergeUlimits(c *containertypes.HostConfig) {
return
}