From f75ecc5ad224548e3e4105efb2d54dbdfe1fdcb7 Mon Sep 17 00:00:00 2001 From: Yong Tang Date: Wed, 28 Dec 2016 14:44:07 -0800 Subject: [PATCH] Update opts.MemBytes to disable default, and move `docker run/create/build` to use opts.MemBytes This fix made several updates: 1. Update opts.MemBytes so that default value will not show up. The reason is that in case a default value is decided by daemon, instead of client, we actually want to not show default value. 2. Move `docker run/create/build` to use opts.MemBytes for `--shm-size` This is to bring consistency between daemon and docker run 3. docs updates. Signed-off-by: Yong Tang --- command/container/opts.go | 14 +++----------- command/container/opts_test.go | 5 +++-- command/image/build.go | 14 +++----------- 3 files changed, 9 insertions(+), 24 deletions(-) diff --git a/command/container/opts.go b/command/container/opts.go index 55cc3c3b29..4f70c7a921 100644 --- a/command/container/opts.go +++ b/command/container/opts.go @@ -100,7 +100,7 @@ type containerOptions struct { stopSignal string stopTimeout int isolation string - shmSize string + shmSize opts.MemBytes noHealthcheck bool healthCmd string healthInterval time.Duration @@ -259,7 +259,7 @@ func addFlags(flags *pflag.FlagSet) *containerOptions { flags.StringVar(&copts.ipcMode, "ipc", "", "IPC namespace to use") flags.StringVar(&copts.isolation, "isolation", "", "Container isolation technology") flags.StringVar(&copts.pidMode, "pid", "", "PID namespace to use") - flags.StringVar(&copts.shmSize, "shm-size", "", "Size of /dev/shm, default value is 64MB") + flags.Var(&copts.shmSize, "shm-size", "Size of /dev/shm") flags.StringVar(&copts.utsMode, "uts", "", "UTS namespace to use") flags.StringVar(&copts.runtime, "runtime", "", "Runtime to use for this container") @@ -336,14 +336,6 @@ func parse(flags *pflag.FlagSet, copts *containerOptions) (*container.Config, *c return nil, nil, nil, fmt.Errorf("invalid value: %d. Valid memory swappiness range is 0-100", swappiness) } - var shmSize int64 - if copts.shmSize != "" { - shmSize, err = units.RAMInBytes(copts.shmSize) - if err != nil { - return nil, nil, nil, err - } - } - // TODO FIXME units.RAMInBytes should have a uint64 version var maxIOBandwidth int64 if copts.ioMaxBandwidth != "" { @@ -615,7 +607,7 @@ func parse(flags *pflag.FlagSet, copts *containerOptions) (*container.Config, *c LogConfig: container.LogConfig{Type: copts.loggingDriver, Config: loggingOpts}, VolumeDriver: copts.volumeDriver, Isolation: container.Isolation(copts.isolation), - ShmSize: shmSize, + ShmSize: copts.shmSize.Value(), Resources: resources, Tmpfs: tmpfs, Sysctls: copts.sysctls.GetAll(), diff --git a/command/container/opts_test.go b/command/container/opts_test.go index ce3bb21b41..d0655069e9 100644 --- a/command/container/opts_test.go +++ b/command/container/opts_test.go @@ -411,8 +411,9 @@ func TestParseModes(t *testing.T) { t.Fatalf("Expected a valid UTSMode, got %v", hostconfig.UTSMode) } // shm-size ko - if _, _, _, err = parseRun([]string{"--shm-size=a128m", "img", "cmd"}); err == nil || err.Error() != "invalid size: 'a128m'" { - t.Fatalf("Expected an error with message 'invalid size: a128m', got %v", err) + expectedErr := `invalid argument "a128m" for --shm-size=a128m: invalid size: 'a128m'` + if _, _, _, err = parseRun([]string{"--shm-size=a128m", "img", "cmd"}); err == nil || err.Error() != expectedErr { + t.Fatalf("Expected an error with message '%v', got %v", expectedErr, err) } // shm-size ok _, hostconfig, _, err = parseRun([]string{"--shm-size=128m", "img", "cmd"}) diff --git a/command/image/build.go b/command/image/build.go index 67753bea14..09625d5b2c 100644 --- a/command/image/build.go +++ b/command/image/build.go @@ -41,7 +41,7 @@ type buildOptions struct { ulimits *opts.UlimitOpt memory string memorySwap string - shmSize string + shmSize opts.MemBytes cpuShares int64 cpuPeriod int64 cpuQuota int64 @@ -89,7 +89,7 @@ func NewBuildCommand(dockerCli *command.DockerCli) *cobra.Command { flags.StringVarP(&options.dockerfileName, "file", "f", "", "Name of the Dockerfile (Default is 'PATH/Dockerfile')") flags.StringVarP(&options.memory, "memory", "m", "", "Memory limit") flags.StringVar(&options.memorySwap, "memory-swap", "", "Swap limit equal to memory plus swap: '-1' to enable unlimited swap") - flags.StringVar(&options.shmSize, "shm-size", "", "Size of /dev/shm, default value is 64MB") + flags.Var(&options.shmSize, "shm-size", "Size of /dev/shm") flags.Int64VarP(&options.cpuShares, "cpu-shares", "c", 0, "CPU shares (relative weight)") flags.Int64Var(&options.cpuPeriod, "cpu-period", 0, "Limit the CPU CFS (Completely Fair Scheduler) period") flags.Int64Var(&options.cpuQuota, "cpu-quota", 0, "Limit the CPU CFS (Completely Fair Scheduler) quota") @@ -271,14 +271,6 @@ func runBuild(dockerCli *command.DockerCli, options buildOptions) error { } } - var shmSize int64 - if options.shmSize != "" { - shmSize, err = units.RAMInBytes(options.shmSize) - if err != nil { - return err - } - } - authConfigs, _ := dockerCli.GetAllCredentials() buildOptions := types.ImageBuildOptions{ Memory: memory, @@ -297,7 +289,7 @@ func runBuild(dockerCli *command.DockerCli, options buildOptions) error { CPUPeriod: options.cpuPeriod, CgroupParent: options.cgroupParent, Dockerfile: relDockerfile, - ShmSize: shmSize, + ShmSize: options.shmSize.Value(), Ulimits: options.ulimits.GetList(), BuildArgs: runconfigopts.ConvertKVStringsToMapWithNil(options.buildArgs.GetAll()), AuthConfigs: authConfigs,