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LCOW: fix using wrong shell for healthchecks

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As reported in docker/compose#6445, when deploying a Linux
container on Windows (LCOW), the daemon made the wrong assumption
when deciding which shell to use to execute the healthcheck, looking
at the host's platform instead of the container's platform.

This patch adds a check for the container's platform when deploying
on Windows, and sets the correct shell.

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
This commit is contained in:
Sebastiaan van Stijn 2019-06-21 13:51:59 +02:00
parent 52c16677b2
commit 3e6a13ccb8
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GPG key ID: 76698F39D527CE8C
1 changed files with 7 additions and 5 deletions
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12
daemon/health.go
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@ -10,7 +10,6 @@ import (
"time"
"github.com/docker/docker/api/types"
containertypes "github.com/docker/docker/api/types/container"
"github.com/docker/docker/api/types/strslice"
"github.com/docker/docker/container"
"github.com/docker/docker/daemon/exec"
@ -65,7 +64,7 @@ type cmdProbe struct {
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(cntr.Config), cmdSlice...)
cmdSlice = append(getShell(cntr), cmdSlice...)
}
entrypoint, args := d.getEntrypointAndArgs(strslice.StrSlice{}, cmdSlice)
execConfig := exec.NewConfig()
@ -376,12 +375,15 @@ func min(x, y int) int {
return y
}
func getShell(config *containertypes.Config) []string {
if len(config.Shell) != 0 {
return config.Shell
func getShell(cntr *container.Container) []string {
if len(cntr.Config.Shell) != 0 {
return cntr.Config.Shell
}
if runtime.GOOS != "windows" {
return []string{"/bin/sh", "-c"}
}
if cntr.OS != runtime.GOOS {
return []string{"/bin/sh", "-c"}
}
return []string{"cmd", "/S", "/C"}
}