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package main
import (
"bytes"
"context"
"encoding/json"
"fmt"
"io"
"net/http"
"os"
"strings"
"testing"
"time"
"github.com/docker/docker/api/types"
"github.com/docker/docker/client"
"github.com/docker/docker/integration-cli/checker"
"github.com/docker/docker/integration-cli/cli"
"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"
)
// Regression test for #9414
func (s *DockerAPISuite) TestExecAPICreateNoCmd(c *testing.T) {
name := "exec_test"
cli.DockerCmd(c, "run", "-d", "-t", "--name", name, "busybox", "/bin/sh")
res, body, err := request.Post(testutil.GetContext(c), fmt.Sprintf("/containers/%s/exec", name), request.JSONBody(map[string]interface{}{"Cmd": nil}))
assert.NilError(c, err)
assert.Equal(c, res.StatusCode, http.StatusBadRequest)
b, err := request.ReadBody(body)
assert.NilError(c, err)
assert.Assert(c, strings.Contains(getErrorMessage(c, b), "No exec command specified"), "Expected message when creating exec command with no Cmd specified")
}
func (s *DockerAPISuite) TestExecAPICreateNoValidContentType(c *testing.T) {
name := "exec_test"
cli.DockerCmd(c, "run", "-d", "-t", "--name", name, "busybox", "/bin/sh")
jsonData := bytes.NewBuffer(nil)
if err := json.NewEncoder(jsonData).Encode(map[string]interface{}{"Cmd": nil}); err != nil {
c.Fatalf("Can not encode data to json %s", err)
}
res, body, err := request.Post(testutil.GetContext(c), fmt.Sprintf("/containers/%s/exec", name), request.RawContent(io.NopCloser(jsonData)), request.ContentType("test/plain"))
assert.NilError(c, err)
assert.Equal(c, res.StatusCode, http.StatusBadRequest)
b, err := request.ReadBody(body)
assert.NilError(c, err)
assert.Assert(c, is.Contains(getErrorMessage(c, b), "unsupported Content-Type header (test/plain): must be 'application/json'"))
}
func (s *DockerAPISuite) TestExecAPICreateContainerPaused(c *testing.T) {
// Not relevant on Windows as Windows containers cannot be paused
testRequires(c, DaemonIsLinux)
name := "exec_create_test"
cli.DockerCmd(c, "run", "-d", "-t", "--name", name, "busybox", "/bin/sh")
cli.DockerCmd(c, "pause", name)
apiClient, err := client.NewClientWithOpts(client.FromEnv)
assert.NilError(c, err)
defer apiClient.Close()
config := types.ExecConfig{
Cmd: []string{"true"},
}
_, err = apiClient.ContainerExecCreate(testutil.GetContext(c), name, config)
assert.ErrorContains(c, err, "Container "+name+" is paused, unpause the container before exec", "Expected message when creating exec command with Container %s is paused", name)
}
func (s *DockerAPISuite) TestExecAPIStart(c *testing.T) {
testRequires(c, DaemonIsLinux) // Uses pause/unpause but bits may be salvageable to Windows to Windows CI
cli.DockerCmd(c, "run", "-d", "--name", "test", "busybox", "top")
id := createExec(c, "test")
startExec(c, id, http.StatusOK)
var execJSON struct{ PID int }
inspectExec(testutil.GetContext(c), c, id, &execJSON)
assert.Assert(c, execJSON.PID > 1)
id = createExec(c, "test")
cli.DockerCmd(c, "stop", "test")
startExec(c, id, http.StatusNotFound)
cli.DockerCmd(c, "start", "test")
startExec(c, id, http.StatusNotFound)
// make sure exec is created before pausing
id = createExec(c, "test")
cli.DockerCmd(c, "pause", "test")
startExec(c, id, http.StatusConflict)
cli.DockerCmd(c, "unpause", "test")
startExec(c, id, http.StatusOK)
}
func (s *DockerAPISuite) TestExecAPIStartEnsureHeaders(c *testing.T) {
testRequires(c, DaemonIsLinux)
cli.DockerCmd(c, "run", "-d", "--name", "test", "busybox", "top")
id := createExec(c, "test")
resp, _, err := request.Post(testutil.GetContext(c), fmt.Sprintf("/exec/%s/start", id), request.RawString(`{"Detach": true}`), request.JSON)
assert.NilError(c, err)
assert.Assert(c, resp.Header.Get("Server") != "")
}
// #19362
func (s *DockerAPISuite) TestExecAPIStartMultipleTimesError(c *testing.T) {
runSleepingContainer(c, "-d", "--name", "test")
execID := createExec(c, "test")
startExec(c, execID, http.StatusOK)
waitForExec(testutil.GetContext(c), c, execID)
startExec(c, execID, http.StatusConflict)
}
// #20638
func (s *DockerAPISuite) TestExecAPIStartWithDetach(c *testing.T) {
name := "foo"
runSleepingContainer(c, "-d", "-t", "--name", name)
ctx := testutil.GetContext(c)
config := types.ExecConfig{
Cmd: []string{"true"},
AttachStderr: true,
}
apiClient, err := client.NewClientWithOpts(client.FromEnv)
assert.NilError(c, err)
defer apiClient.Close()
createResp, err := apiClient.ContainerExecCreate(ctx, name, config)
assert.NilError(c, err)
_, body, err := request.Post(ctx, fmt.Sprintf("/exec/%s/start", createResp.ID), request.RawString(`{"Detach": true}`), request.JSON)
assert.NilError(c, err)
b, err := request.ReadBody(body)
comment := fmt.Sprintf("response body: %s", b)
assert.NilError(c, err, comment)
resp, _, err := request.Get(ctx, "/_ping")
assert.NilError(c, err)
if resp.StatusCode != http.StatusOK {
c.Fatal("daemon is down, it should alive")
}
}
// #30311
func (s *DockerAPISuite) TestExecAPIStartValidCommand(c *testing.T) {
name := "exec_test"
cli.DockerCmd(c, "run", "-d", "-t", "--name", name, "busybox", "/bin/sh")
id := createExecCmd(c, name, "true")
startExec(c, id, http.StatusOK)
ctx := testutil.GetContext(c)
waitForExec(ctx, c, id)
var inspectJSON struct{ ExecIDs []string }
inspectContainer(ctx, c, name, &inspectJSON)
assert.Assert(c, inspectJSON.ExecIDs == nil)
}
// #30311
func (s *DockerAPISuite) TestExecAPIStartInvalidCommand(c *testing.T) {
name := "exec_test"
cli.DockerCmd(c, "run", "-d", "-t", "--name", name, "busybox", "/bin/sh")
id := createExecCmd(c, name, "invalid")
startExec(c, id, http.StatusBadRequest)
ctx := testutil.GetContext(c)
waitForExec(ctx, c, id)
var inspectJSON struct{ ExecIDs []string }
inspectContainer(ctx, c, name, &inspectJSON)
assert.Assert(c, inspectJSON.ExecIDs == nil)
}
func (s *DockerAPISuite) TestExecStateCleanup(c *testing.T) {
testRequires(c, DaemonIsLinux, testEnv.IsLocalDaemon)
// This test checks accidental regressions. Not part of stable API.
name := "exec_cleanup"
cid := cli.DockerCmd(c, "run", "-d", "-t", "--name", name, "busybox", "/bin/sh").Stdout()
cid = strings.TrimSpace(cid)
stateDir := "/var/run/docker/containerd/" + cid
checkReadDir := func(c *testing.T) (interface{}, string) {
fi, err := os.ReadDir(stateDir)
assert.NilError(c, err)
return len(fi), ""
}
fi, err := os.ReadDir(stateDir)
assert.NilError(c, err)
assert.Assert(c, len(fi) > 1)
id := createExecCmd(c, name, "ls")
startExec(c, id, http.StatusOK)
ctx := testutil.GetContext(c)
waitForExec(ctx, c, id)
poll.WaitOn(c, pollCheck(c, checkReadDir, checker.Equals(len(fi))), poll.WithTimeout(5*time.Second))
id = createExecCmd(c, name, "invalid")
startExec(c, id, http.StatusBadRequest)
waitForExec(ctx, c, id)
poll.WaitOn(c, pollCheck(c, checkReadDir, checker.Equals(len(fi))), poll.WithTimeout(5*time.Second))
cli.DockerCmd(c, "stop", name)
_, err = os.Stat(stateDir)
assert.ErrorContains(c, err, "")
assert.Assert(c, os.IsNotExist(err))
}
func createExec(c *testing.T, name string) string {
return createExecCmd(c, name, "true")
}
func createExecCmd(c *testing.T, name string, cmd string) string {
_, reader, err := request.Post(testutil.GetContext(c), fmt.Sprintf("/containers/%s/exec", name), request.JSONBody(map[string]interface{}{"Cmd": []string{cmd}}))
assert.NilError(c, err)
b, err := io.ReadAll(reader)
assert.NilError(c, err)
defer reader.Close()
createResp := struct {
ID string `json:"Id"`
}{}
assert.NilError(c, json.Unmarshal(b, &createResp), string(b))
return createResp.ID
}
func startExec(c *testing.T, id string, code int) {
resp, body, err := request.Post(testutil.GetContext(c), fmt.Sprintf("/exec/%s/start", id), request.RawString(`{"Detach": true}`), request.JSON)
assert.NilError(c, err)
b, err := request.ReadBody(body)
assert.NilError(c, err, "response body: %s", b)
assert.Equal(c, resp.StatusCode, code, "response body: %s", b)
}
func inspectExec(ctx context.Context, c *testing.T, id string, out interface{}) {
resp, body, err := request.Get(ctx, fmt.Sprintf("/exec/%s/json", id))
assert.NilError(c, err)
defer body.Close()
assert.Equal(c, resp.StatusCode, http.StatusOK)
err = json.NewDecoder(body).Decode(out)
assert.NilError(c, err)
}
func waitForExec(ctx context.Context, c *testing.T, id string) {
timeout := time.After(60 * time.Second)
var execJSON struct{ Running bool }
for {
select {
case <-timeout:
c.Fatal("timeout waiting for exec to start")
default:
}
inspectExec(ctx, c, id, &execJSON)
if !execJSON.Running {
break
}
}
}
func inspectContainer(ctx context.Context, c *testing.T, id string, out interface{}) {
resp, body, err := request.Get(ctx, "/containers/"+id+"/json")
assert.NilError(c, err)
defer body.Close()
assert.Equal(c, resp.StatusCode, http.StatusOK)
err = json.NewDecoder(body).Decode(out)
assert.NilError(c, err)
}
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