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Add filter for events emitted by docker daemon

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This fix tries to cover the issue raised in #22463 by adding
filter for events emitted by docker daemon so that user could
utilize filter to receive events of interest.

Documentations have been updated for this fix.

Additional tests have been added to cover the changes in this fix.

This fix fixes #22463.

Signed-off-by: Yong Tang <yong.tang.github@outlook.com>
This commit is contained in:
Yong Tang 2016-05-08 16:15:33 -07:00
parent 382c152a73
commit 62014aaf9a
7 changed files with 74 additions and 6 deletions
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61
integration-cli/docker_cli_events_unix_test.go
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@ -386,17 +386,19 @@ func (s *DockerDaemonSuite) TestDaemonEvents(c *check.C) {
out, err := s.d.Cmd("info")
c.Assert(err, checker.IsNil)
daemonID := ""
daemonName := ""
for _, line := range strings.Split(out, "\n") {
if strings.HasPrefix(line, "ID: ") {
daemonID = strings.TrimPrefix(line, "ID: ")
break
} else if strings.HasPrefix(line, "Name: ") {
daemonName = strings.TrimPrefix(line, "Name: ")
}
}
c.Assert(daemonID, checker.Not(checker.Equals), "")
configFile, err = os.Create(configFilePath)
c.Assert(err, checker.IsNil)
daemonConfig = `{"labels":["bar=foo"]}`
daemonConfig = `{"max-concurrent-downloads":1,"labels":["bar=foo"]}`
fmt.Fprintf(configFile, "%s", daemonConfig)
configFile.Close()
@ -406,5 +408,58 @@ func (s *DockerDaemonSuite) TestDaemonEvents(c *check.C) {
out, err = s.d.Cmd("events", "--since=0", "--until", daemonUnixTime(c))
c.Assert(err, checker.IsNil)
c.Assert(out, checker.Contains, fmt.Sprintf("daemon reload %s (cluster-advertise=, cluster-store=, cluster-store-opts={}, debug=true, labels=[\"bar=foo\"])", daemonID))
c.Assert(out, checker.Contains, fmt.Sprintf("daemon reload %s (cluster-advertise=, cluster-store=, cluster-store-opts={}, debug=true, labels=[\"bar=foo\"], max-concurrent-downloads=1, max-concurrent-uploads=5, name=%s)", daemonID, daemonName))
}
func (s *DockerDaemonSuite) TestDaemonEventsWithFilters(c *check.C) {
testRequires(c, SameHostDaemon, DaemonIsLinux)
// daemon config file
configFilePath := "test.json"
configFile, err := os.Create(configFilePath)
c.Assert(err, checker.IsNil)
defer os.Remove(configFilePath)
daemonConfig := `{"labels":["foo=bar"]}`
fmt.Fprintf(configFile, "%s", daemonConfig)
configFile.Close()
c.Assert(s.d.Start(fmt.Sprintf("--config-file=%s", configFilePath)), check.IsNil)
// Get daemon ID
out, err := s.d.Cmd("info")
c.Assert(err, checker.IsNil)
daemonID := ""
daemonName := ""
for _, line := range strings.Split(out, "\n") {
if strings.HasPrefix(line, "ID: ") {
daemonID = strings.TrimPrefix(line, "ID: ")
} else if strings.HasPrefix(line, "Name: ") {
daemonName = strings.TrimPrefix(line, "Name: ")
}
}
c.Assert(daemonID, checker.Not(checker.Equals), "")
syscall.Kill(s.d.cmd.Process.Pid, syscall.SIGHUP)
time.Sleep(3 * time.Second)
out, err = s.d.Cmd("events", "--since=0", "--until", daemonUnixTime(c), "--filter", fmt.Sprintf("daemon=%s", daemonID))
c.Assert(err, checker.IsNil)
c.Assert(out, checker.Contains, fmt.Sprintf("daemon reload %s", daemonID))
out, err = s.d.Cmd("events", "--since=0", "--until", daemonUnixTime(c), "--filter", fmt.Sprintf("daemon=%s", daemonName))
c.Assert(err, checker.IsNil)
c.Assert(out, checker.Contains, fmt.Sprintf("daemon reload %s", daemonID))
out, err = s.d.Cmd("events", "--since=0", "--until", daemonUnixTime(c), "--filter", "daemon=foo")
c.Assert(err, checker.IsNil)
c.Assert(out, checker.Not(checker.Contains), fmt.Sprintf("daemon reload %s", daemonID))
out, err = s.d.Cmd("events", "--since=0", "--until", daemonUnixTime(c), "--filter", "type=daemon")
c.Assert(err, checker.IsNil)
c.Assert(out, checker.Contains, fmt.Sprintf("daemon reload %s", daemonID))
out, err = s.d.Cmd("events", "--since=0", "--until", daemonUnixTime(c), "--filter", "type=container")
c.Assert(err, checker.IsNil)
c.Assert(out, checker.Not(checker.Contains), fmt.Sprintf("daemon reload %s", daemonID))
}