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Fix issue where service healthcheck is {} in remote API

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This fix tries to address the issue raised in 30178 where
service healthcheck is `{}` in remote API will result in
dns resolve failue.

The reason was that when service healthcheck is `{}`,
service binding was not done.

This fix fixes the issue.

An integration test has been added.

This fix fixes 30178.

Signed-off-by: Yong Tang <yong.tang.github@outlook.com>
This commit is contained in:
Yong Tang 2017-01-16 21:53:31 -08:00
parent 3c32e1775a
commit 8feb5c5a48
2 changed files with 25 additions and 7 deletions
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8
daemon/cluster/executor/container/controller.go
View file

@ -205,7 +205,7 @@ func (r *controller) Start(ctx context.Context) error {
}
// no health check
if ctnr.Config == nil || ctnr.Config.Healthcheck == nil {
if ctnr.Config == nil || ctnr.Config.Healthcheck == nil || len(ctnr.Config.Healthcheck.Test) == 0 || ctnr.Config.Healthcheck.Test[0] == "NONE" {
if err := r.adapter.activateServiceBinding(); err != nil {
log.G(ctx).WithError(err).Errorf("failed to activate service binding for container %s which has no healthcheck config", r.adapter.container.name())
return err
@ -213,12 +213,6 @@ func (r *controller) Start(ctx context.Context) error {
return nil
}
healthCmd := ctnr.Config.Healthcheck.Test
if len(healthCmd) == 0 || healthCmd[0] == "NONE" {
return nil
}
// wait for container to be healthy
eventq := r.adapter.events(ctx)

24
integration-cli/docker_api_swarm_test.go
View file

@ -16,6 +16,7 @@ import (
"time"
"github.com/docker/docker/api/types"
"github.com/docker/docker/api/types/container"
"github.com/docker/docker/api/types/swarm"
"github.com/docker/docker/integration-cli/checker"
"github.com/docker/docker/integration-cli/daemon"
@ -1384,3 +1385,26 @@ func (s *DockerSwarmSuite) TestAPIDuplicateNetworks(c *check.C) {
c.Assert(r2.Scope, checker.Equals, "swarm")
}
// Test case for 30178
func (s *DockerSwarmSuite) TestAPISwarmHealthcheckNone(c *check.C) {
d := s.AddDaemon(c, true, true)
out, err := d.Cmd("network", "create", "-d", "overlay", "lb")
c.Assert(err, checker.IsNil, check.Commentf(out))
instances := 1
d.CreateService(c, simpleTestService, setInstances(instances), func(s *swarm.Service) {
s.Spec.TaskTemplate.ContainerSpec.Healthcheck = &container.HealthConfig{}
s.Spec.TaskTemplate.Networks = []swarm.NetworkAttachmentConfig{
{Target: "lb"},
}
})
waitAndAssert(c, defaultReconciliationTimeout, d.CheckActiveContainerCount, checker.Equals, instances)
containers := d.ActiveContainers()
out, err = d.Cmd("exec", containers[0], "ping", "-c1", "-W3", "top")
c.Assert(err, checker.IsNil, check.Commentf(out))
}