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Tests for PR # 19123: daemon option (--storage-opt dm.basesize) for increasing the base device size on daemon restart

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Signed-off-by: Shishir Mahajan <shishir.mahajan@redhat.com>
This commit is contained in:
Shishir Mahajan
2016-02-04 10:05:41 -05:00
parent f5ed72c931
commit 07184599f7
3 changed files with 79 additions and 0 deletions
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39
integration-cli/docker_cli_daemon_test.go
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@ -20,6 +20,7 @@ import (
"time"
"github.com/docker/docker/pkg/integration/checker"
"github.com/docker/go-units"
"github.com/docker/libnetwork/iptables"
"github.com/docker/libtrust"
"github.com/go-check/check"
@ -154,6 +155,44 @@ func (s *DockerDaemonSuite) TestDaemonStartIptablesFalse(c *check.C) {
}
}
// Make sure we cannot shrink base device at daemon restart.
func (s *DockerDaemonSuite) TestDaemonRestartWithInvalidBasesize(c *check.C) {
testRequires(c, Devicemapper)
c.Assert(s.d.Start(), check.IsNil)
oldBasesizeBytes := s.d.getBaseDeviceSize(c)
var newBasesizeBytes int64 = 1073741824 //1GB in bytes
if newBasesizeBytes < oldBasesizeBytes {
err := s.d.Restart("--storage-opt", fmt.Sprintf("dm.basesize=%d", newBasesizeBytes))
c.Assert(err, check.IsNil, check.Commentf("daemon should not have started as new base device size is less than existing base device size: %v", err))
}
c.Assert(s.d.Stop(), check.IsNil)
}
// Make sure we can grow base device at daemon restart.
func (s *DockerDaemonSuite) TestDaemonRestartWithIncreasedBasesize(c *check.C) {
testRequires(c, Devicemapper)
c.Assert(s.d.Start(), check.IsNil)
oldBasesizeBytes := s.d.getBaseDeviceSize(c)
var newBasesizeBytes int64 = 53687091200 //50GB in bytes
if newBasesizeBytes < oldBasesizeBytes {
c.Skip(fmt.Sprintf("New base device size (%v) must be greater than (%s)", units.HumanSize(float64(newBasesizeBytes)), units.HumanSize(float64(oldBasesizeBytes))))
}
err := s.d.Restart("--storage-opt", fmt.Sprintf("dm.basesize=%d", newBasesizeBytes))
c.Assert(err, check.IsNil, check.Commentf("we should have been able to start the daemon with increased base device size: %v", err))
basesizeAfterRestart := s.d.getBaseDeviceSize(c)
newBasesize, err := convertBasesize(newBasesizeBytes)
c.Assert(err, check.IsNil, check.Commentf("Error in converting base device size: %v", err))
c.Assert(newBasesize, check.Equals, basesizeAfterRestart, check.Commentf("Basesize passed is not equal to Basesize set"))
c.Assert(s.d.Stop(), check.IsNil)
}
// Issue #8444: If docker0 bridge is modified (intentionally or unintentionally) and
// no longer has an IP associated, we should gracefully handle that case and associate
// an IP with it rather than fail daemon start