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Merge pull request #23281 from yongtang/23211-spf13-cobra-update

Use spf13/cobra for docker update
This commit is contained in:
Sebastiaan van Stijn 2016-06-24 14:31:53 -07:00 committed by GitHub
commit e5a8a7747e
5 changed files with 151 additions and 122 deletions

View file

@ -5,6 +5,5 @@ func (cli *DockerCli) Command(name string) func(...string) error {
return map[string]func(...string) error{
"exec": cli.CmdExec,
"inspect": cli.CmdInspect,
"update": cli.CmdUpdate,
}[name]
}

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@ -0,0 +1,150 @@
package container
import (
"fmt"
"strings"
"golang.org/x/net/context"
"github.com/docker/docker/api/client"
"github.com/docker/docker/cli"
runconfigopts "github.com/docker/docker/runconfig/opts"
containertypes "github.com/docker/engine-api/types/container"
"github.com/docker/go-units"
"github.com/spf13/cobra"
)
type updateOptions struct {
blkioWeight uint16
cpuPeriod int64
cpuQuota int64
cpusetCpus string
cpusetMems string
cpuShares int64
memoryString string
memoryReservation string
memorySwap string
kernelMemory string
restartPolicy string
nFlag int
containers []string
}
// NewUpdateCommand creats a new cobra.Command for `docker update`
func NewUpdateCommand(dockerCli *client.DockerCli) *cobra.Command {
var opts updateOptions
cmd := &cobra.Command{
Use: "update [OPTIONS] CONTAINER [CONTAINER...]",
Short: "Update configuration of one or more containers",
Args: cli.RequiresMinArgs(1),
RunE: func(cmd *cobra.Command, args []string) error {
opts.containers = args
opts.nFlag = cmd.Flags().NFlag()
return runUpdate(dockerCli, &opts)
},
}
cmd.SetFlagErrorFunc(flagErrorFunc)
flags := cmd.Flags()
flags.Uint16Var(&opts.blkioWeight, "blkio-weight", 0, "Block IO (relative weight), between 10 and 1000")
flags.Int64Var(&opts.cpuPeriod, "cpu-period", 0, "Limit CPU CFS (Completely Fair Scheduler) period")
flags.Int64Var(&opts.cpuQuota, "cpu-quota", 0, "Limit CPU CFS (Completely Fair Scheduler) quota")
flags.StringVar(&opts.cpusetCpus, "cpuset-cpus", "", "CPUs in which to allow execution (0-3, 0,1)")
flags.StringVar(&opts.cpusetMems, "cpuset-mems", "", "MEMs in which to allow execution (0-3, 0,1)")
flags.Int64VarP(&opts.cpuShares, "cpu-shares", "c", 0, "CPU shares (relative weight)")
flags.StringVarP(&opts.memoryString, "memory", "m", "", "Memory limit")
flags.StringVar(&opts.memoryReservation, "memory-reservation", "", "Memory soft limit")
flags.StringVar(&opts.memorySwap, "memory-swap", "", "Swap limit equal to memory plus swap: '-1' to enable unlimited swap")
flags.StringVar(&opts.kernelMemory, "kernel-memory", "", "Kernel memory limit")
flags.StringVar(&opts.restartPolicy, "restart", "", "Restart policy to apply when a container exits")
return cmd
}
func runUpdate(dockerCli *client.DockerCli, opts *updateOptions) error {
var err error
if opts.nFlag == 0 {
return fmt.Errorf("You must provide one or more flags when using this command.")
}
var memory int64
if opts.memoryString != "" {
memory, err = units.RAMInBytes(opts.memoryString)
if err != nil {
return err
}
}
var memoryReservation int64
if opts.memoryReservation != "" {
memoryReservation, err = units.RAMInBytes(opts.memoryReservation)
if err != nil {
return err
}
}
var memorySwap int64
if opts.memorySwap != "" {
if opts.memorySwap == "-1" {
memorySwap = -1
} else {
memorySwap, err = units.RAMInBytes(opts.memorySwap)
if err != nil {
return err
}
}
}
var kernelMemory int64
if opts.kernelMemory != "" {
kernelMemory, err = units.RAMInBytes(opts.kernelMemory)
if err != nil {
return err
}
}
var restartPolicy containertypes.RestartPolicy
if opts.restartPolicy != "" {
restartPolicy, err = runconfigopts.ParseRestartPolicy(opts.restartPolicy)
if err != nil {
return err
}
}
resources := containertypes.Resources{
BlkioWeight: opts.blkioWeight,
CpusetCpus: opts.cpusetCpus,
CpusetMems: opts.cpusetMems,
CPUShares: opts.cpuShares,
Memory: memory,
MemoryReservation: memoryReservation,
MemorySwap: memorySwap,
KernelMemory: kernelMemory,
CPUPeriod: opts.cpuPeriod,
CPUQuota: opts.cpuQuota,
}
updateConfig := containertypes.UpdateConfig{
Resources: resources,
RestartPolicy: restartPolicy,
}
ctx := context.Background()
var errs []string
for _, container := range opts.containers {
if err := dockerCli.Client().ContainerUpdate(ctx, container, updateConfig); err != nil {
errs = append(errs, err.Error())
} else {
fmt.Fprintf(dockerCli.Out(), "%s\n", container)
}
}
if len(errs) > 0 {
return fmt.Errorf("%s", strings.Join(errs, "\n"))
}
return nil
}

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@ -1,120 +0,0 @@
package client
import (
"fmt"
"strings"
"golang.org/x/net/context"
Cli "github.com/docker/docker/cli"
flag "github.com/docker/docker/pkg/mflag"
"github.com/docker/docker/runconfig/opts"
"github.com/docker/engine-api/types/container"
"github.com/docker/go-units"
)
// CmdUpdate updates resources of one or more containers.
//
// Usage: docker update [OPTIONS] CONTAINER [CONTAINER...]
func (cli *DockerCli) CmdUpdate(args ...string) error {
cmd := Cli.Subcmd("update", []string{"CONTAINER [CONTAINER...]"}, Cli.DockerCommands["update"].Description, true)
flBlkioWeight := cmd.Uint16([]string{"-blkio-weight"}, 0, "Block IO (relative weight), between 10 and 1000")
flCPUPeriod := cmd.Int64([]string{"-cpu-period"}, 0, "Limit CPU CFS (Completely Fair Scheduler) period")
flCPUQuota := cmd.Int64([]string{"-cpu-quota"}, 0, "Limit CPU CFS (Completely Fair Scheduler) quota")
flCpusetCpus := cmd.String([]string{"-cpuset-cpus"}, "", "CPUs in which to allow execution (0-3, 0,1)")
flCpusetMems := cmd.String([]string{"-cpuset-mems"}, "", "MEMs in which to allow execution (0-3, 0,1)")
flCPUShares := cmd.Int64([]string{"c", "-cpu-shares"}, 0, "CPU shares (relative weight)")
flMemoryString := cmd.String([]string{"m", "-memory"}, "", "Memory limit")
flMemoryReservation := cmd.String([]string{"-memory-reservation"}, "", "Memory soft limit")
flMemorySwap := cmd.String([]string{"-memory-swap"}, "", "Swap limit equal to memory plus swap: '-1' to enable unlimited swap")
flKernelMemory := cmd.String([]string{"-kernel-memory"}, "", "Kernel memory limit")
flRestartPolicy := cmd.String([]string{"-restart"}, "", "Restart policy to apply when a container exits")
cmd.Require(flag.Min, 1)
cmd.ParseFlags(args, true)
if cmd.NFlag() == 0 {
return fmt.Errorf("You must provide one or more flags when using this command.")
}
var err error
var flMemory int64
if *flMemoryString != "" {
flMemory, err = units.RAMInBytes(*flMemoryString)
if err != nil {
return err
}
}
var memoryReservation int64
if *flMemoryReservation != "" {
memoryReservation, err = units.RAMInBytes(*flMemoryReservation)
if err != nil {
return err
}
}
var memorySwap int64
if *flMemorySwap != "" {
if *flMemorySwap == "-1" {
memorySwap = -1
} else {
memorySwap, err = units.RAMInBytes(*flMemorySwap)
if err != nil {
return err
}
}
}
var kernelMemory int64
if *flKernelMemory != "" {
kernelMemory, err = units.RAMInBytes(*flKernelMemory)
if err != nil {
return err
}
}
var restartPolicy container.RestartPolicy
if *flRestartPolicy != "" {
restartPolicy, err = opts.ParseRestartPolicy(*flRestartPolicy)
if err != nil {
return err
}
}
resources := container.Resources{
BlkioWeight: *flBlkioWeight,
CpusetCpus: *flCpusetCpus,
CpusetMems: *flCpusetMems,
CPUShares: *flCPUShares,
Memory: flMemory,
MemoryReservation: memoryReservation,
MemorySwap: memorySwap,
KernelMemory: kernelMemory,
CPUPeriod: *flCPUPeriod,
CPUQuota: *flCPUQuota,
}
updateConfig := container.UpdateConfig{
Resources: resources,
RestartPolicy: restartPolicy,
}
ctx := context.Background()
names := cmd.Args()
var errs []string
for _, name := range names {
if err := cli.client.ContainerUpdate(ctx, name, updateConfig); err != nil {
errs = append(errs, err.Error())
} else {
fmt.Fprintf(cli.out, "%s\n", name)
}
}
if len(errs) > 0 {
return fmt.Errorf("%s", strings.Join(errs, "\n"))
}
return nil
}

View file

@ -66,6 +66,7 @@ func NewCobraAdaptor(clientFlags *cliflags.ClientFlags) CobraAdaptor {
container.NewStopCommand(dockerCli),
container.NewTopCommand(dockerCli),
container.NewUnpauseCommand(dockerCli),
container.NewUpdateCommand(dockerCli),
container.NewWaitCommand(dockerCli),
image.NewBuildCommand(dockerCli),
image.NewHistoryCommand(dockerCli),

View file

@ -10,7 +10,6 @@ type Command struct {
var DockerCommandUsage = []Command{
{"exec", "Run a command in a running container"},
{"inspect", "Return low-level information on a container, image or task"},
{"update", "Update configuration of one or more containers"},
}
// DockerCommands stores all the docker command