217 lines
7.5 KiB
Go
217 lines
7.5 KiB
Go
// +build !windows
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package main
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import (
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"encoding/json"
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"fmt"
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"strings"
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"github.com/docker/docker/pkg/integration/checker"
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"github.com/docker/engine-api/types"
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"github.com/go-check/check"
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)
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func (s *DockerSuite) TestUpdateRunningContainer(c *check.C) {
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testRequires(c, DaemonIsLinux)
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testRequires(c, memoryLimitSupport)
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name := "test-update-container"
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dockerCmd(c, "run", "-d", "--name", name, "-m", "300M", "busybox", "top")
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dockerCmd(c, "update", "-m", "500M", name)
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c.Assert(inspectField(c, name, "HostConfig.Memory"), checker.Equals, "524288000")
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file := "/sys/fs/cgroup/memory/memory.limit_in_bytes"
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out, _ := dockerCmd(c, "exec", name, "cat", file)
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c.Assert(strings.TrimSpace(out), checker.Equals, "524288000")
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}
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func (s *DockerSuite) TestUpdateRunningContainerWithRestart(c *check.C) {
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testRequires(c, DaemonIsLinux)
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testRequires(c, memoryLimitSupport)
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name := "test-update-container"
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dockerCmd(c, "run", "-d", "--name", name, "-m", "300M", "busybox", "top")
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dockerCmd(c, "update", "-m", "500M", name)
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dockerCmd(c, "restart", name)
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c.Assert(inspectField(c, name, "HostConfig.Memory"), checker.Equals, "524288000")
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file := "/sys/fs/cgroup/memory/memory.limit_in_bytes"
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out, _ := dockerCmd(c, "exec", name, "cat", file)
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c.Assert(strings.TrimSpace(out), checker.Equals, "524288000")
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}
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func (s *DockerSuite) TestUpdateStoppedContainer(c *check.C) {
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testRequires(c, DaemonIsLinux)
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testRequires(c, memoryLimitSupport)
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name := "test-update-container"
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file := "/sys/fs/cgroup/memory/memory.limit_in_bytes"
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dockerCmd(c, "run", "--name", name, "-m", "300M", "busybox", "cat", file)
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dockerCmd(c, "update", "-m", "500M", name)
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c.Assert(inspectField(c, name, "HostConfig.Memory"), checker.Equals, "524288000")
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out, _ := dockerCmd(c, "start", "-a", name)
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c.Assert(strings.TrimSpace(out), checker.Equals, "524288000")
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}
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func (s *DockerSuite) TestUpdatePausedContainer(c *check.C) {
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testRequires(c, DaemonIsLinux)
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testRequires(c, cpuShare)
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name := "test-update-container"
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dockerCmd(c, "run", "-d", "--name", name, "--cpu-shares", "1000", "busybox", "top")
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dockerCmd(c, "pause", name)
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dockerCmd(c, "update", "--cpu-shares", "500", name)
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c.Assert(inspectField(c, name, "HostConfig.CPUShares"), checker.Equals, "500")
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dockerCmd(c, "unpause", name)
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file := "/sys/fs/cgroup/cpu/cpu.shares"
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out, _ := dockerCmd(c, "exec", name, "cat", file)
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c.Assert(strings.TrimSpace(out), checker.Equals, "500")
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}
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func (s *DockerSuite) TestUpdateWithUntouchedFields(c *check.C) {
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testRequires(c, DaemonIsLinux)
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testRequires(c, memoryLimitSupport)
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testRequires(c, cpuShare)
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name := "test-update-container"
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dockerCmd(c, "run", "-d", "--name", name, "-m", "300M", "--cpu-shares", "800", "busybox", "top")
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dockerCmd(c, "update", "-m", "500M", name)
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// Update memory and not touch cpus, `cpuset.cpus` should still have the old value
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out := inspectField(c, name, "HostConfig.CPUShares")
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c.Assert(out, check.Equals, "800")
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file := "/sys/fs/cgroup/cpu/cpu.shares"
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out, _ = dockerCmd(c, "exec", name, "cat", file)
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c.Assert(strings.TrimSpace(out), checker.Equals, "800")
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}
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func (s *DockerSuite) TestUpdateContainerInvalidValue(c *check.C) {
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testRequires(c, DaemonIsLinux)
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testRequires(c, memoryLimitSupport)
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name := "test-update-container"
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dockerCmd(c, "run", "-d", "--name", name, "-m", "300M", "busybox", "true")
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out, _, err := dockerCmdWithError("update", "-m", "2M", name)
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c.Assert(err, check.NotNil)
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expected := "Minimum memory limit allowed is 4MB"
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c.Assert(out, checker.Contains, expected)
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}
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func (s *DockerSuite) TestUpdateContainerWithoutFlags(c *check.C) {
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testRequires(c, DaemonIsLinux)
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testRequires(c, memoryLimitSupport)
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name := "test-update-container"
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dockerCmd(c, "run", "-d", "--name", name, "-m", "300M", "busybox", "true")
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_, _, err := dockerCmdWithError("update", name)
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c.Assert(err, check.NotNil)
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}
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func (s *DockerSuite) TestUpdateKernelMemory(c *check.C) {
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testRequires(c, DaemonIsLinux, kernelMemorySupport)
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name := "test-update-container"
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dockerCmd(c, "run", "-d", "--name", name, "--kernel-memory", "50M", "busybox", "top")
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_, _, err := dockerCmdWithError("update", "--kernel-memory", "100M", name)
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// Update kernel memory to a running container is not allowed.
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c.Assert(err, check.NotNil)
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// Update kernel memory to a running container with failure should not change HostConfig
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c.Assert(inspectField(c, name, "HostConfig.KernelMemory"), checker.Equals, "52428800")
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dockerCmd(c, "pause", name)
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_, _, err = dockerCmdWithError("update", "--kernel-memory", "100M", name)
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c.Assert(err, check.NotNil)
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c.Assert(inspectField(c, name, "HostConfig.KernelMemory"), checker.Equals, "52428800")
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dockerCmd(c, "unpause", name)
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dockerCmd(c, "stop", name)
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dockerCmd(c, "update", "--kernel-memory", "100M", name)
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dockerCmd(c, "start", name)
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c.Assert(inspectField(c, name, "HostConfig.KernelMemory"), checker.Equals, "104857600")
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file := "/sys/fs/cgroup/memory/memory.kmem.limit_in_bytes"
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out, _ := dockerCmd(c, "exec", name, "cat", file)
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c.Assert(strings.TrimSpace(out), checker.Equals, "104857600")
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}
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func (s *DockerSuite) TestUpdateSwapMemoryOnly(c *check.C) {
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testRequires(c, DaemonIsLinux)
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testRequires(c, memoryLimitSupport)
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testRequires(c, swapMemorySupport)
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name := "test-update-container"
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dockerCmd(c, "run", "-d", "--name", name, "--memory", "300M", "--memory-swap", "500M", "busybox", "top")
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dockerCmd(c, "update", "--memory-swap", "600M", name)
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c.Assert(inspectField(c, name, "HostConfig.MemorySwap"), checker.Equals, "629145600")
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file := "/sys/fs/cgroup/memory/memory.memsw.limit_in_bytes"
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out, _ := dockerCmd(c, "exec", name, "cat", file)
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c.Assert(strings.TrimSpace(out), checker.Equals, "629145600")
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}
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func (s *DockerSuite) TestUpdateInvalidSwapMemory(c *check.C) {
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testRequires(c, DaemonIsLinux)
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testRequires(c, memoryLimitSupport)
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testRequires(c, swapMemorySupport)
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name := "test-update-container"
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dockerCmd(c, "run", "-d", "--name", name, "--memory", "300M", "--memory-swap", "500M", "busybox", "top")
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_, _, err := dockerCmdWithError("update", "--memory-swap", "200M", name)
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// Update invalid swap memory should fail.
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// This will pass docker config validation, but failed at kernel validation
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c.Assert(err, check.NotNil)
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// Update invalid swap memory with failure should not change HostConfig
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c.Assert(inspectField(c, name, "HostConfig.Memory"), checker.Equals, "314572800")
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c.Assert(inspectField(c, name, "HostConfig.MemorySwap"), checker.Equals, "524288000")
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dockerCmd(c, "update", "--memory-swap", "600M", name)
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c.Assert(inspectField(c, name, "HostConfig.MemorySwap"), checker.Equals, "629145600")
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file := "/sys/fs/cgroup/memory/memory.memsw.limit_in_bytes"
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out, _ := dockerCmd(c, "exec", name, "cat", file)
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c.Assert(strings.TrimSpace(out), checker.Equals, "629145600")
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}
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func (s *DockerSuite) TestUpdateStats(c *check.C) {
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testRequires(c, DaemonIsLinux)
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testRequires(c, memoryLimitSupport)
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testRequires(c, cpuCfsQuota)
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name := "foo"
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dockerCmd(c, "run", "-d", "-ti", "--name", name, "-m", "500m", "busybox")
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c.Assert(waitRun(name), checker.IsNil)
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getMemLimit := func(id string) uint64 {
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resp, body, err := sockRequestRaw("GET", fmt.Sprintf("/containers/%s/stats?stream=false", id), nil, "")
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c.Assert(err, checker.IsNil)
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c.Assert(resp.Header.Get("Content-Type"), checker.Equals, "application/json")
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var v *types.Stats
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err = json.NewDecoder(body).Decode(&v)
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c.Assert(err, checker.IsNil)
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body.Close()
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return v.MemoryStats.Limit
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}
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preMemLimit := getMemLimit(name)
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dockerCmd(c, "update", "--cpu-quota", "2000", name)
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curMemLimit := getMemLimit(name)
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c.Assert(preMemLimit, checker.Equals, curMemLimit)
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}
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