mirror of
https://github.com/moby/moby.git
synced 2022-11-09 12:21:53 -05:00
218 lines
7.3 KiB
Go
218 lines
7.3 KiB
Go
// +build !windows
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package main
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import (
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"bufio"
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"bytes"
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"encoding/json"
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"io/ioutil"
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"os"
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"os/exec"
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"path/filepath"
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"regexp"
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"strings"
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"time"
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"syscall"
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"github.com/docker/docker/integration-cli/checker"
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"github.com/docker/docker/integration-cli/cli"
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"github.com/docker/docker/integration-cli/cli/build"
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"github.com/docker/docker/integration-cli/cli/build/fakecontext"
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icmd "github.com/docker/docker/pkg/testutil/cmd"
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"github.com/go-check/check"
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)
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func (s *DockerSuite) TestBuildResourceConstraintsAreUsed(c *check.C) {
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testRequires(c, cpuCfsQuota)
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name := "testbuildresourceconstraints"
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ctx := fakecontext.New(c, "", fakecontext.WithDockerfile(`
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FROM hello-world:frozen
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RUN ["/hello"]
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`))
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cli.Docker(
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cli.Args("build", "--no-cache", "--rm=false", "--memory=64m", "--memory-swap=-1", "--cpuset-cpus=0", "--cpuset-mems=0", "--cpu-shares=100", "--cpu-quota=8000", "--ulimit", "nofile=42", "-t", name, "."),
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cli.InDir(ctx.Dir),
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).Assert(c, icmd.Success)
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out := cli.DockerCmd(c, "ps", "-lq").Combined()
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cID := strings.TrimSpace(out)
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type hostConfig struct {
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Memory int64
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MemorySwap int64
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CpusetCpus string
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CpusetMems string
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CPUShares int64
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CPUQuota int64
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Ulimits []*units.Ulimit
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}
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cfg := inspectFieldJSON(c, cID, "HostConfig")
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var c1 hostConfig
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err := json.Unmarshal([]byte(cfg), &c1)
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c.Assert(err, checker.IsNil, check.Commentf(cfg))
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c.Assert(c1.Memory, checker.Equals, int64(64*1024*1024), check.Commentf("resource constraints not set properly for Memory"))
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c.Assert(c1.MemorySwap, checker.Equals, int64(-1), check.Commentf("resource constraints not set properly for MemorySwap"))
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c.Assert(c1.CpusetCpus, checker.Equals, "0", check.Commentf("resource constraints not set properly for CpusetCpus"))
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c.Assert(c1.CpusetMems, checker.Equals, "0", check.Commentf("resource constraints not set properly for CpusetMems"))
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c.Assert(c1.CPUShares, checker.Equals, int64(100), check.Commentf("resource constraints not set properly for CPUShares"))
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c.Assert(c1.CPUQuota, checker.Equals, int64(8000), check.Commentf("resource constraints not set properly for CPUQuota"))
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c.Assert(c1.Ulimits[0].Name, checker.Equals, "nofile", check.Commentf("resource constraints not set properly for Ulimits"))
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c.Assert(c1.Ulimits[0].Hard, checker.Equals, int64(42), check.Commentf("resource constraints not set properly for Ulimits"))
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// Make sure constraints aren't saved to image
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cli.DockerCmd(c, "run", "--name=test", name)
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cfg = inspectFieldJSON(c, "test", "HostConfig")
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var c2 hostConfig
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err = json.Unmarshal([]byte(cfg), &c2)
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c.Assert(err, checker.IsNil, check.Commentf(cfg))
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c.Assert(c2.Memory, check.Not(checker.Equals), int64(64*1024*1024), check.Commentf("resource leaked from build for Memory"))
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c.Assert(c2.MemorySwap, check.Not(checker.Equals), int64(-1), check.Commentf("resource leaked from build for MemorySwap"))
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c.Assert(c2.CpusetCpus, check.Not(checker.Equals), "0", check.Commentf("resource leaked from build for CpusetCpus"))
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c.Assert(c2.CpusetMems, check.Not(checker.Equals), "0", check.Commentf("resource leaked from build for CpusetMems"))
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c.Assert(c2.CPUShares, check.Not(checker.Equals), int64(100), check.Commentf("resource leaked from build for CPUShares"))
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c.Assert(c2.CPUQuota, check.Not(checker.Equals), int64(8000), check.Commentf("resource leaked from build for CPUQuota"))
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c.Assert(c2.Ulimits, checker.IsNil, check.Commentf("resource leaked from build for Ulimits"))
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}
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func (s *DockerSuite) TestBuildAddChangeOwnership(c *check.C) {
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testRequires(c, DaemonIsLinux)
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name := "testbuildaddown"
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ctx := func() *fakecontext.Fake {
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dockerfile := `
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FROM busybox
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ADD foo /bar/
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RUN [ $(stat -c %U:%G "/bar") = 'root:root' ]
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RUN [ $(stat -c %U:%G "/bar/foo") = 'root:root' ]
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`
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tmpDir, err := ioutil.TempDir("", "fake-context")
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c.Assert(err, check.IsNil)
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testFile, err := os.Create(filepath.Join(tmpDir, "foo"))
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if err != nil {
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c.Fatalf("failed to create foo file: %v", err)
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}
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defer testFile.Close()
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icmd.RunCmd(icmd.Cmd{
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Command: []string{"chown", "daemon:daemon", "foo"},
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Dir: tmpDir,
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}).Assert(c, icmd.Success)
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if err := ioutil.WriteFile(filepath.Join(tmpDir, "Dockerfile"), []byte(dockerfile), 0644); err != nil {
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c.Fatalf("failed to open destination dockerfile: %v", err)
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}
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return fakecontext.New(c, tmpDir)
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}()
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defer ctx.Close()
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buildImageSuccessfully(c, name, build.WithExternalBuildContext(ctx))
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}
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// Test that an infinite sleep during a build is killed if the client disconnects.
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// This test is fairly hairy because there are lots of ways to race.
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// Strategy:
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// * Monitor the output of docker events starting from before
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// * Run a 1-year-long sleep from a docker build.
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// * When docker events sees container start, close the "docker build" command
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// * Wait for docker events to emit a dying event.
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func (s *DockerSuite) TestBuildCancellationKillsSleep(c *check.C) {
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testRequires(c, DaemonIsLinux)
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name := "testbuildcancellation"
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observer, err := newEventObserver(c)
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c.Assert(err, checker.IsNil)
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err = observer.Start()
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c.Assert(err, checker.IsNil)
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defer observer.Stop()
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// (Note: one year, will never finish)
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ctx := fakecontext.New(c, "", fakecontext.WithDockerfile("FROM busybox\nRUN sleep 31536000"))
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defer ctx.Close()
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buildCmd := exec.Command(dockerBinary, "build", "-t", name, ".")
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buildCmd.Dir = ctx.Dir
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stdoutBuild, err := buildCmd.StdoutPipe()
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c.Assert(err, checker.IsNil)
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if err := buildCmd.Start(); err != nil {
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c.Fatalf("failed to run build: %s", err)
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}
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matchCID := regexp.MustCompile("Running in (.+)")
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scanner := bufio.NewScanner(stdoutBuild)
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outputBuffer := new(bytes.Buffer)
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var buildID string
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for scanner.Scan() {
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line := scanner.Text()
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outputBuffer.WriteString(line)
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outputBuffer.WriteString("\n")
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if matches := matchCID.FindStringSubmatch(line); len(matches) > 0 {
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buildID = matches[1]
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break
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}
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}
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if buildID == "" {
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c.Fatalf("Unable to find build container id in build output:\n%s", outputBuffer.String())
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}
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testActions := map[string]chan bool{
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"start": make(chan bool, 1),
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"die": make(chan bool, 1),
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}
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matcher := matchEventLine(buildID, "container", testActions)
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processor := processEventMatch(testActions)
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go observer.Match(matcher, processor)
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select {
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case <-time.After(10 * time.Second):
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observer.CheckEventError(c, buildID, "start", matcher)
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case <-testActions["start"]:
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// ignore, done
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}
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// Send a kill to the `docker build` command.
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// Causes the underlying build to be cancelled due to socket close.
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if err := buildCmd.Process.Kill(); err != nil {
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c.Fatalf("error killing build command: %s", err)
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}
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// Get the exit status of `docker build`, check it exited because killed.
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if err := buildCmd.Wait(); err != nil && !isKilled(err) {
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c.Fatalf("wait failed during build run: %T %s", err, err)
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}
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select {
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case <-time.After(10 * time.Second):
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observer.CheckEventError(c, buildID, "die", matcher)
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case <-testActions["die"]:
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// ignore, done
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}
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}
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func isKilled(err error) bool {
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if exitErr, ok := err.(*exec.ExitError); ok {
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status, ok := exitErr.Sys().(syscall.WaitStatus)
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if !ok {
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return false
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}
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// status.ExitStatus() is required on Windows because it does not
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// implement Signal() nor Signaled(). Just check it had a bad exit
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// status could mean it was killed (and in tests we do kill)
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return (status.Signaled() && status.Signal() == os.Kill) || status.ExitStatus() != 0
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}
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return false
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}
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