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package container // import "github.com/docker/docker/integration/container"
import (
"runtime"
"testing"
"time"
containertypes "github.com/docker/docker/api/types/container"
"github.com/docker/docker/integration/internal/container"
"github.com/docker/docker/testutil"
"github.com/docker/docker/testutil/request"
"gotest.tools/v3/assert"
is "gotest.tools/v3/assert/cmp"
"gotest.tools/v3/poll"
"gotest.tools/v3/skip"
)
func TestKillContainerInvalidSignal(t *testing.T) {
ctx := setupTest(t)
apiClient := testEnv.APIClient()
id := container.Run(ctx, t, apiClient)
err := apiClient.ContainerKill(ctx, id, "0")
assert.ErrorContains(t, err, "Error response from daemon:")
assert.ErrorContains(t, err, "nvalid signal: 0") // match "(I|i)nvalid" case-insensitive to allow testing against older daemons.
poll.WaitOn(t, container.IsInState(ctx, apiClient, id, "running"), poll.WithDelay(100*time.Millisecond))
err = apiClient.ContainerKill(ctx, id, "SIG42")
assert.ErrorContains(t, err, "Error response from daemon:")
assert.ErrorContains(t, err, "nvalid signal: SIG42") // match "(I|i)nvalid" case-insensitive to allow testing against older daemons.
poll.WaitOn(t, container.IsInState(ctx, apiClient, id, "running"), poll.WithDelay(100*time.Millisecond))
}
func TestKillContainer(t *testing.T) {
ctx := setupTest(t)
apiClient := testEnv.APIClient()
testCases := []struct {
doc string
signal string
status string
skipOs string
}{
{
doc: "no signal",
signal: "",
status: "exited",
skipOs: "",
},
{
doc: "non killing signal",
signal: "SIGWINCH",
status: "running",
skipOs: "windows",
},
{
doc: "killing signal",
signal: "SIGTERM",
status: "exited",
skipOs: "",
},
}
var pollOpts []poll.SettingOp
if runtime.GOOS == "windows" {
pollOpts = append(pollOpts, poll.WithTimeout(StopContainerWindowsPollTimeout))
}
for _, tc := range testCases {
tc := tc
t.Run(tc.doc, func(t *testing.T) {
skip.If(t, testEnv.DaemonInfo.OSType == tc.skipOs, "Windows does not support SIGWINCH")
ctx := testutil.StartSpan(ctx, t)
id := container.Run(ctx, t, apiClient)
err := apiClient.ContainerKill(ctx, id, tc.signal)
assert.NilError(t, err)
poll.WaitOn(t, container.IsInState(ctx, apiClient, id, tc.status), pollOpts...)
})
}
}
func TestKillWithStopSignalAndRestartPolicies(t *testing.T) {
ctx := setupTest(t)
apiClient := testEnv.APIClient()
testCases := []struct {
doc string
stopsignal string
status string
}{
{
doc: "same-signal-disables-restart-policy",
stopsignal: "TERM",
status: "exited",
},
{
doc: "different-signal-keep-restart-policy",
stopsignal: "CONT",
status: "running",
},
}
var pollOpts []poll.SettingOp
if runtime.GOOS == "windows" {
pollOpts = append(pollOpts, poll.WithTimeout(StopContainerWindowsPollTimeout))
}
for _, tc := range testCases {
tc := tc
t.Run(tc.doc, func(t *testing.T) {
ctx := testutil.StartSpan(ctx, t)
id := container.Run(ctx, t, apiClient,
container.WithRestartPolicy(containertypes.RestartPolicyAlways),
func(c *container.TestContainerConfig) {
c.Config.StopSignal = tc.stopsignal
})
err := apiClient.ContainerKill(ctx, id, "TERM")
assert.NilError(t, err)
poll.WaitOn(t, container.IsInState(ctx, apiClient, id, tc.status), pollOpts...)
})
}
}
func TestKillStoppedContainer(t *testing.T) {
ctx := setupTest(t)
apiClient := testEnv.APIClient()
id := container.Create(ctx, t, apiClient)
err := apiClient.ContainerKill(ctx, id, "SIGKILL")
assert.Assert(t, is.ErrorContains(err, ""))
assert.Assert(t, is.Contains(err.Error(), "is not running"))
}
func TestKillDifferentUserContainer(t *testing.T) {
// TODO Windows: Windows does not yet support -u (Feb 2016).
skip.If(t, testEnv.DaemonInfo.OSType == "windows", "User containers (container.Config.User) are not yet supported on %q platform", testEnv.DaemonInfo.OSType)
ctx := setupTest(t)
apiClient := request.NewAPIClient(t)
id := container.Run(ctx, t, apiClient, func(c *container.TestContainerConfig) {
c.Config.User = "daemon"
})
err := apiClient.ContainerKill(ctx, id, "SIGKILL")
assert.NilError(t, err)
poll.WaitOn(t, container.IsInState(ctx, apiClient, id, "exited"), poll.WithDelay(100*time.Millisecond))
}
func TestInspectOomKilledTrue(t *testing.T) {
skip.If(t, testEnv.DaemonInfo.OSType == "windows")
skip.If(t, testEnv.DaemonInfo.CgroupDriver == "none")
skip.If(t, !testEnv.DaemonInfo.MemoryLimit || !testEnv.DaemonInfo.SwapLimit)
skip.If(t, testEnv.DaemonInfo.CgroupVersion == "2", "FIXME: flaky on cgroup v2 (https://github.com/moby/moby/issues/41929)")
ctx := setupTest(t)
apiClient := testEnv.APIClient()
cID := container.Run(ctx, t, apiClient, container.WithCmd("sh", "-c", "x=a; while true; do x=$x$x$x$x; done"), func(c *container.TestContainerConfig) {
c.HostConfig.Resources.Memory = 32 * 1024 * 1024
})
poll.WaitOn(t, container.IsInState(ctx, apiClient, cID, "exited"), poll.WithDelay(100*time.Millisecond))
inspect, err := apiClient.ContainerInspect(ctx, cID)
assert.NilError(t, err)
assert.Check(t, is.Equal(true, inspect.State.OOMKilled))
}
func TestInspectOomKilledFalse(t *testing.T) {
skip.If(t, testEnv.DaemonInfo.OSType == "windows" || !testEnv.DaemonInfo.MemoryLimit || !testEnv.DaemonInfo.SwapLimit)
ctx := setupTest(t)
apiClient := testEnv.APIClient()
cID := container.Run(ctx, t, apiClient, container.WithCmd("sh", "-c", "echo hello world"))
poll.WaitOn(t, container.IsInState(ctx, apiClient, cID, "exited"), poll.WithDelay(100*time.Millisecond))
inspect, err := apiClient.ContainerInspect(ctx, cID)
assert.NilError(t, err)
assert.Check(t, is.Equal(false, inspect.State.OOMKilled))
}
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