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package main
import (
"fmt" |
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"io" |
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"os/exec" |
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"regexp"
"strings"
"time" |
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|
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"github.com/docker/docker/pkg/integration/checker" |
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"github.com/docker/docker/pkg/jsonlog" |
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"github.com/go-check/check" |
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)
// This used to work, it test a log of PageSize-1 (gh#4851) |
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func (s *DockerSuite) TestLogsContainerSmallerThanPage(c *check.C) { |
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testLen := 32767 |
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out, _ := dockerCmd(c, "run", "-d", "busybox", "sh", "-c", fmt.Sprintf("for i in $(seq 1 %d); do echo -n = >> a.a; done; echo >> a.a; cat a.a", testLen)) |
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|
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id := strings.TrimSpace(out)
dockerCmd(c, "wait", id)
out, _ = dockerCmd(c, "logs", id)
c.Assert(out, checker.HasLen, testLen+1) |
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}
// Regression test: When going over the PageSize, it used to panic (gh#4851) |
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func (s *DockerSuite) TestLogsContainerBiggerThanPage(c *check.C) { |
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testLen := 32768 |
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out, _ := dockerCmd(c, "run", "-d", "busybox", "sh", "-c", fmt.Sprintf("for i in $(seq 1 %d); do echo -n = >> a.a; done; echo >> a.a; cat a.a", testLen)) |
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|
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id := strings.TrimSpace(out)
dockerCmd(c, "wait", id) |
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|
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out, _ = dockerCmd(c, "logs", id) |
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|
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c.Assert(out, checker.HasLen, testLen+1) |
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}
// Regression test: When going much over the PageSize, it used to block (gh#4851) |
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func (s *DockerSuite) TestLogsContainerMuchBiggerThanPage(c *check.C) { |
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testLen := 33000 |
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out, _ := dockerCmd(c, "run", "-d", "busybox", "sh", "-c", fmt.Sprintf("for i in $(seq 1 %d); do echo -n = >> a.a; done; echo >> a.a; cat a.a", testLen)) |
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|
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id := strings.TrimSpace(out)
dockerCmd(c, "wait", id) |
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|
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out, _ = dockerCmd(c, "logs", id) |
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|
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c.Assert(out, checker.HasLen, testLen+1) |
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} |
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|
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func (s *DockerSuite) TestLogsTimestamps(c *check.C) { |
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testLen := 100 |
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out, _ := dockerCmd(c, "run", "-d", "busybox", "sh", "-c", fmt.Sprintf("for i in $(seq 1 %d); do echo = >> a.a; done; cat a.a", testLen)) |
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|
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id := strings.TrimSpace(out)
dockerCmd(c, "wait", id) |
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|
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out, _ = dockerCmd(c, "logs", "-t", id) |
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lines := strings.Split(out, "\n")
|
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c.Assert(lines, checker.HasLen, testLen+1) |
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|
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ts := regexp.MustCompile(`^.* `) |
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for _, l := range lines {
if l != "" { |
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_, err := time.Parse(jsonlog.RFC3339NanoFixed+" ", ts.FindString(l)) |
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c.Assert(err, checker.IsNil, check.Commentf("Failed to parse timestamp from %v", l))
// ensure we have padded 0's
c.Assert(l[29], checker.Equals, uint8('Z')) |
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}
}
}
|
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func (s *DockerSuite) TestLogsSeparateStderr(c *check.C) { |
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msg := "stderr_log" |
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out, _ := dockerCmd(c, "run", "-d", "busybox", "sh", "-c", fmt.Sprintf("echo %s 1>&2", msg)) |
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|
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id := strings.TrimSpace(out)
dockerCmd(c, "wait", id) |
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|
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stdout, stderr, _ := dockerCmdWithStdoutStderr(c, "logs", id) |
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|
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c.Assert(stdout, checker.Equals, "") |
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stderr = strings.TrimSpace(stderr) |
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c.Assert(stderr, checker.Equals, msg) |
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}
|
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func (s *DockerSuite) TestLogsStderrInStdout(c *check.C) { |
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// TODO Windows: Needs investigation why this fails. Obtained string includes
// a bunch of ANSI escape sequences before the "stderr_log" message. |
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testRequires(c, DaemonIsLinux) |
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msg := "stderr_log" |
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out, _ := dockerCmd(c, "run", "-d", "-t", "busybox", "sh", "-c", fmt.Sprintf("echo %s 1>&2", msg)) |
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|
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id := strings.TrimSpace(out)
dockerCmd(c, "wait", id) |
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|
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stdout, stderr, _ := dockerCmdWithStdoutStderr(c, "logs", id)
c.Assert(stderr, checker.Equals, "") |
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stdout = strings.TrimSpace(stdout) |
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c.Assert(stdout, checker.Equals, msg) |
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} |
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|
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func (s *DockerSuite) TestLogsTail(c *check.C) { |
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testLen := 100 |
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out, _ := dockerCmd(c, "run", "-d", "busybox", "sh", "-c", fmt.Sprintf("for i in $(seq 1 %d); do echo =; done;", testLen)) |
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|
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id := strings.TrimSpace(out)
dockerCmd(c, "wait", id) |
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|
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out, _ = dockerCmd(c, "logs", "--tail", "5", id) |
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lines := strings.Split(out, "\n")
|
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c.Assert(lines, checker.HasLen, 6)
out, _ = dockerCmd(c, "logs", "--tail", "all", id) |
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lines = strings.Split(out, "\n")
|
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c.Assert(lines, checker.HasLen, testLen+1)
out, _, _ = dockerCmdWithStdoutStderr(c, "logs", "--tail", "random", id) |
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lines = strings.Split(out, "\n")
|
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c.Assert(lines, checker.HasLen, testLen+1) |
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} |
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|
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func (s *DockerSuite) TestLogsFollowStopped(c *check.C) { |
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dockerCmd(c, "run", "--name=test", "busybox", "echo", "hello")
id, err := getIDByName("test")
c.Assert(err, check.IsNil) |
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|
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logsCmd := exec.Command(dockerBinary, "logs", "-f", id)
c.Assert(logsCmd.Start(), checker.IsNil) |
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|
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errChan := make(chan error) |
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go func() { |
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errChan <- logsCmd.Wait()
close(errChan) |
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}()
select { |
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case err := <-errChan: |
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c.Assert(err, checker.IsNil) |
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case <-time.After(30 * time.Second): |
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c.Fatal("Following logs is hanged") |
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}
} |
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|
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func (s *DockerSuite) TestLogsSince(c *check.C) {
name := "testlogssince" |
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dockerCmd(c, "run", "--name="+name, "busybox", "/bin/sh", "-c", "for i in $(seq 1 3); do sleep 2; echo log$i; done")
out, _ := dockerCmd(c, "logs", "-t", name) |
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|
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log2Line := strings.Split(strings.Split(out, "\n")[1], " ") |
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t, err := time.Parse(time.RFC3339Nano, log2Line[0]) // the timestamp log2 is written |
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c.Assert(err, checker.IsNil) |
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since := t.Unix() + 1 // add 1s so log1 & log2 doesn't show up |
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out, _ = dockerCmd(c, "logs", "-t", fmt.Sprintf("--since=%v", since), name) |
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// Skip 2 seconds
unexpected := []string{"log1", "log2"}
for _, v := range unexpected { |
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c.Assert(out, checker.Not(checker.Contains), v, check.Commentf("unexpected log message returned, since=%v", since)) |
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} |
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// Test to make sure a bad since format is caught by the client
out, _, _ = dockerCmdWithError("logs", "-t", "--since=2006-01-02T15:04:0Z", name)
c.Assert(out, checker.Contains, "cannot parse \"0Z\" as \"05\"", check.Commentf("bad since format passed to server"))
|
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// Test with default value specified and parameter omitted |
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expected := []string{"log1", "log2", "log3"} |
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for _, cmd := range []*exec.Cmd{
exec.Command(dockerBinary, "logs", "-t", name),
exec.Command(dockerBinary, "logs", "-t", "--since=0", name),
} {
out, _, err = runCommandWithOutput(cmd) |
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c.Assert(err, checker.IsNil, check.Commentf("failed to log container: %s", out)) |
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for _, v := range expected { |
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c.Assert(out, checker.Contains, v) |
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}
}
}
func (s *DockerSuite) TestLogsSinceFutureFollow(c *check.C) { |
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// TODO Windows: Flakey on TP4. Enable for next technical preview. |
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testRequires(c, DaemonIsLinux) |
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name := "testlogssincefuturefollow"
out, _ := dockerCmd(c, "run", "-d", "--name", name, "busybox", "/bin/sh", "-c", `for i in $(seq 1 5); do echo log$i; sleep 1; done`)
// Extract one timestamp from the log file to give us a starting point for
// our `--since` argument. Because the log producer runs in the background,
// we need to check repeatedly for some output to be produced.
var timestamp string |
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for i := 0; i != 100 && timestamp == ""; i++ { |
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if out, _ = dockerCmd(c, "logs", "-t", name); out == "" {
time.Sleep(time.Millisecond * 100) // Retry
} else {
timestamp = strings.Split(strings.Split(out, "\n")[0], " ")[0]
}
} |
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|
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c.Assert(timestamp, checker.Not(checker.Equals), "")
t, err := time.Parse(time.RFC3339Nano, timestamp)
c.Assert(err, check.IsNil)
since := t.Unix() + 2
out, _ = dockerCmd(c, "logs", "-t", "-f", fmt.Sprintf("--since=%v", since), name) |
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c.Assert(out, checker.Not(checker.HasLen), 0, check.Commentf("cannot read from empty log")) |
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lines := strings.Split(strings.TrimSpace(out), "\n")
for _, v := range lines { |
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ts, err := time.Parse(time.RFC3339Nano, strings.Split(v, " ")[0])
c.Assert(err, checker.IsNil, check.Commentf("cannot parse timestamp output from log: '%v'", v))
c.Assert(ts.Unix() >= since, checker.Equals, true, check.Commentf("earlier log found. since=%v logdate=%v", since, ts)) |
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}
}
|
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// Regression test for #8832 |
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func (s *DockerSuite) TestLogsFollowSlowStdoutConsumer(c *check.C) { |
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// TODO Windows: Consider enabling post-TP4. Too expensive to run on TP4 |
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testRequires(c, DaemonIsLinux) |
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out, _ := dockerCmd(c, "run", "-d", "busybox", "/bin/sh", "-c", `usleep 600000;yes X | head -c 200000`) |
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|
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id := strings.TrimSpace(out) |
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stopSlowRead := make(chan bool)
go func() { |
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exec.Command(dockerBinary, "wait", id).Run() |
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stopSlowRead <- true
}()
|
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logCmd := exec.Command(dockerBinary, "logs", "-f", id) |
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stdout, err := logCmd.StdoutPipe() |
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c.Assert(err, checker.IsNil)
c.Assert(logCmd.Start(), checker.IsNil) |
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// First read slowly
bytes1, err := consumeWithSpeed(stdout, 10, 50*time.Millisecond, stopSlowRead) |
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c.Assert(err, checker.IsNil) |
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// After the container has finished we can continue reading fast
bytes2, err := consumeWithSpeed(stdout, 32*1024, 0, nil) |
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c.Assert(err, checker.IsNil) |
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actual := bytes1 + bytes2
expected := 200000 |
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c.Assert(actual, checker.Equals, expected) |
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} |
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func (s *DockerSuite) TestLogsFollowGoroutinesWithStdout(c *check.C) {
out, _ := dockerCmd(c, "run", "-d", "busybox", "/bin/sh", "-c", "while true; do echo hello; sleep 2; done")
id := strings.TrimSpace(out) |
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c.Assert(waitRun(id), checker.IsNil) |
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|
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nroutines, err := getGoroutineNumber()
c.Assert(err, checker.IsNil) |
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cmd := exec.Command(dockerBinary, "logs", "-f", id)
r, w := io.Pipe()
cmd.Stdout = w |
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c.Assert(cmd.Start(), checker.IsNil) |
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// Make sure pipe is written to
chErr := make(chan error)
go func() {
b := make([]byte, 1)
_, err := r.Read(b)
chErr <- err
}() |
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c.Assert(<-chErr, checker.IsNil)
c.Assert(cmd.Process.Kill(), checker.IsNil) |
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// NGoroutines is not updated right away, so we need to wait before failing |
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c.Assert(waitForGoroutines(nroutines), checker.IsNil) |
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} |
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func (s *DockerSuite) TestLogsFollowGoroutinesNoOutput(c *check.C) {
out, _ := dockerCmd(c, "run", "-d", "busybox", "/bin/sh", "-c", "while true; do sleep 2; done")
id := strings.TrimSpace(out) |
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c.Assert(waitRun(id), checker.IsNil) |
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|
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nroutines, err := getGoroutineNumber()
c.Assert(err, checker.IsNil) |
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cmd := exec.Command(dockerBinary, "logs", "-f", id) |
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c.Assert(cmd.Start(), checker.IsNil) |
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time.Sleep(200 * time.Millisecond) |
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c.Assert(cmd.Process.Kill(), checker.IsNil) |
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// NGoroutines is not updated right away, so we need to wait before failing |
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c.Assert(waitForGoroutines(nroutines), checker.IsNil) |
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} |
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func (s *DockerSuite) TestLogsCLIContainerNotFound(c *check.C) {
name := "testlogsnocontainer"
out, _, _ := dockerCmdWithError("logs", name) |
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message := fmt.Sprintf("Error: No such container: %s\n", name)
c.Assert(out, checker.Equals, message) |
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} |