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Add container environment variables correctly to the health check

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The health check process doesn't have all the environment
varialbes in the container or has them set incorrectly.

This patch should fix that problem.

Signed-off-by: Boaz Shuster <ripcurld.github@gmail.com>
This commit is contained in:
Boaz Shuster 2017-05-17 15:30:51 +03:00
parent 6ef7afce83
commit 5836d86ac4
2 changed files with 38 additions and 11 deletions
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26
daemon/health.go
View file

@ -64,31 +64,35 @@ type cmdProbe struct {
// exec the healthcheck command in the container.
// Returns the exit code and probe output (if any)
func (p *cmdProbe) run(ctx context.Context, d *Daemon, container *container.Container) (*types.HealthcheckResult, error) {
cmdSlice := strslice.StrSlice(container.Config.Healthcheck.Test)[1:]
func (p *cmdProbe) run(ctx context.Context, d *Daemon, cntr *container.Container) (*types.HealthcheckResult, error) {
cmdSlice := strslice.StrSlice(cntr.Config.Healthcheck.Test)[1:]
if p.shell {
cmdSlice = append(getShell(container.Config), cmdSlice...)
cmdSlice = append(getShell(cntr.Config), cmdSlice...)
}
entrypoint, args := d.getEntrypointAndArgs(strslice.StrSlice{}, cmdSlice)
execConfig := exec.NewConfig()
execConfig.OpenStdin = false
execConfig.OpenStdout = true
execConfig.OpenStderr = true
execConfig.ContainerID = container.ID
execConfig.ContainerID = cntr.ID
execConfig.DetachKeys = []byte{}
execConfig.Entrypoint = entrypoint
execConfig.Args = args
execConfig.Tty = false
execConfig.Privileged = false
execConfig.User = container.Config.User
execConfig.Env = container.Config.Env
execConfig.User = cntr.Config.User
d.registerExecCommand(container, execConfig)
d.LogContainerEvent(container, "exec_create: "+execConfig.Entrypoint+" "+strings.Join(execConfig.Args, " "))
linkedEnv, err := d.setupLinkedContainers(cntr)
if err != nil {
return nil, err
}
execConfig.Env = container.ReplaceOrAppendEnvValues(cntr.CreateDaemonEnvironment(execConfig.Tty, linkedEnv), execConfig.Env)
d.registerExecCommand(cntr, execConfig)
d.LogContainerEvent(cntr, "exec_create: "+execConfig.Entrypoint+" "+strings.Join(execConfig.Args, " "))
output := &limitedBuffer{}
err := d.ContainerExecStart(ctx, execConfig.ID, nil, output, output)
err = d.ContainerExecStart(ctx, execConfig.ID, nil, output, output)
if err != nil {
return nil, err
}
@ -97,7 +101,7 @@ func (p *cmdProbe) run(ctx context.Context, d *Daemon, container *container.Cont
return nil, err
}
if info.ExitCode == nil {
return nil, fmt.Errorf("Healthcheck for container %s has no exit code!", container.ID)
return nil, fmt.Errorf("Healthcheck for container %s has no exit code!", cntr.ID)
}
// Note: Go's json package will handle invalid UTF-8 for us
out := output.String()

23
integration-cli/docker_cli_health_test.go
View file

@ -139,3 +139,26 @@ func (s *DockerSuite) TestHealth(c *check.C) {
c.Check(out, checker.Equals, "[CMD cat /my status]\n")
}
// Github #33021
func (s *DockerSuite) TestUnsetEnvVarHealthCheck(c *check.C) {
testRequires(c, DaemonIsLinux) // busybox doesn't work on Windows
imageName := "testhealth"
buildImageSuccessfully(c, imageName, build.WithDockerfile(`FROM busybox
HEALTHCHECK --interval=1s --timeout=5s --retries=5 CMD /bin/sh -c "sleep 1"
ENTRYPOINT /bin/sh -c "sleep 600"`))
name := "env_test_health"
// No health status before starting
dockerCmd(c, "run", "-d", "--name", name, "-e", "FOO", imageName)
defer func() {
dockerCmd(c, "rm", "-f", name)
dockerCmd(c, "rmi", imageName)
}()
// Start
dockerCmd(c, "start", name)
waitForHealthStatus(c, name, "starting", "healthy")
}