Files
act_runner/act/container/docker_proxy_test.go
silverwind dafe8d8d0c fix: keep dry runs off the docker daemon and speed up the tests (#1349)
Without a docker daemon six `act/runner` tests failed instead of passing. A dry run still created and removed job networks, the job teardown dropped the dry-run flag along with every other context value, and the container mocks asked the daemon for the runner arch.

This also speeds up the tests and CI without dropping assertions. Most of the time went to git and docker round trips, which are now pinned, batched or coalesced, and the dind and e2e steps cache or overlap more of their setup. On CI, `act/runner` went from 77s to 55s and `test-dind` from 108s to 55s. Locally, `act/runner` without docker went from 53s to 7s.

Split out of https://gitea.com/gitea/runner/pulls/1348, which adds Windows CI on top. The go cache changes moved to https://gitea.com/gitea/runner/pulls/1350.

Written by Claude Code.

---------

Co-authored-by: bircni <bircni@icloud.com>
Reviewed-on: https://gitea.com/gitea/runner/pulls/1349
Reviewed-by: bircni <bircni@icloud.com>
Co-authored-by: silverwind <me@silverwind.io>
2026-10-26 17:25:17 +00:00

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// Copyright 2026 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
//go:build !(WITHOUT_DOCKER || !(linux || darwin || windows || netbsd))
package container
import (
"archive/tar"
"bufio"
"bytes"
"context"
"errors"
"fmt"
"io"
"net"
"net/http"
"os"
"path/filepath"
"runtime"
"strconv"
"strings"
"sync/atomic"
"testing"
"testing/synctest"
"time"
cerrdefs "github.com/containerd/errdefs"
"github.com/moby/moby/api/types/container"
"github.com/moby/moby/api/types/image"
"github.com/moby/moby/api/types/mount"
"github.com/moby/moby/api/types/network"
"github.com/moby/moby/api/types/volume"
mobyclient "github.com/moby/moby/client"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/mock"
"github.com/stretchr/testify/require"
)
func (m *mockDockerClient) VolumeList(ctx context.Context, opts mobyclient.VolumeListOptions) (mobyclient.VolumeListResult, error) {
args := m.Called(ctx, opts)
return args.Get(0).(mobyclient.VolumeListResult), args.Error(1)
}
func (m *mockDockerClient) VolumeRemove(ctx context.Context, id string, opts mobyclient.VolumeRemoveOptions) (mobyclient.VolumeRemoveResult, error) {
args := m.Called(ctx, id, opts)
return args.Get(0).(mobyclient.VolumeRemoveResult), args.Error(1)
}
// unix socket paths are limited to about a hundred bytes, which the default macOS TMPDIR exceeds
func shortTempDir(t testing.TB) string {
t.Helper()
t.Setenv("TMPDIR", "/tmp")
return t.TempDir()
}
func daemonSocketPath(t testing.TB, cli mobyclient.APIClient) string {
t.Helper()
host := cli.DaemonHost()
if !strings.HasPrefix(host, "unix://") {
t.Skipf("skipping: daemon at %s is not a unix socket", host)
}
return strings.TrimPrefix(host, "unix://")
}
func TestDockerProxy(t *testing.T) {
if runtime.GOOS == "windows" {
t.Skip("Unix socket ownership is unavailable on Windows")
}
bodies := make(chan []byte, 8)
createStarted, releaseCreate := make(chan struct{}), make(chan struct{})
streamsDone := make(chan struct{}, 2)
var probes atomic.Int32
daemonSocket := filepath.Join(shortTempDir(t), "d.sock")
listener, err := net.Listen("unix", daemonSocket)
require.NoError(t, err)
daemon := &http.Server{ReadHeaderTimeout: time.Second, Handler: http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
switch {
case strings.HasSuffix(r.URL.Path, "/create"):
body, _ := io.ReadAll(r.Body)
if bytes.Contains(body, []byte(`"Image":"probe-image"`)) {
_, _ = w.Write([]byte(`{"Id":"probe"}`))
return
}
if r.URL.RawQuery == "wait" {
close(createStarted)
<-releaseCreate
}
bodies <- body
w.WriteHeader(http.StatusCreated)
case strings.HasSuffix(r.URL.Path, "/images/json"):
if probes.Add(1) == 1 {
http.Error(w, "probe unavailable", http.StatusServiceUnavailable)
return
}
_, _ = w.Write([]byte(`[{"Id":"probe-image"}]`))
case strings.HasSuffix(r.URL.Path, "/json"):
http.NotFound(w, r)
case strings.HasSuffix(r.URL.Path, "/archive"):
w.Header().Set("X-Docker-Container-Path-Stat", "e30=")
case r.Method == http.MethodDelete:
w.WriteHeader(http.StatusNoContent)
case r.URL.Path == "/exec/detached/start" || r.URL.Path == "/exec/error/start":
if r.URL.Path == "/exec/error/start" {
w.Header().Set("Content-Type", "application/vnd.docker.raw-stream")
w.WriteHeader(http.StatusBadRequest)
}
_, _ = w.Write([]byte("ordinary"))
case rawStreamPath.MatchString(r.URL.Path) || r.URL.Path == "/session":
_, _ = io.Copy(io.Discard, r.Body)
conn, buffered, err := w.(http.Hijacker).Hijack()
if err != nil {
return
}
defer conn.Close()
if r.Header.Get("Upgrade") != "" {
_, _ = conn.Write([]byte("HTTP/1.1 101 Switching Protocols\r\nConnection: Upgrade\r\nUpgrade: tcp\r\n\r\nready\n"))
} else {
_, _ = conn.Write([]byte("HTTP/1.1 200 OK\r\nContent-Type: application/vnd.docker.raw-stream\r\n\r\nready\n"))
}
input, _ := io.ReadAll(buffered)
_, _ = conn.Write(append([]byte("final:"), input...))
streamsDone <- struct{}{}
default:
w.Header().Set("Api-Version", "1.47")
_, _ = w.Write([]byte("OK " + r.Method + " " + r.URL.Path))
}
})}
go func() { _ = daemon.Serve(listener) }()
t.Cleanup(func() { _ = daemon.Close() })
proxy, err := StartDockerProxy(daemonSocket, shortTempDir(t), "job-1")
require.NoError(t, err)
t.Cleanup(func() { _ = proxy.Close(context.Background()) })
proxy.SetMounts(map[string]string{"/workspace/o/r": "/volumes/job/_data", "/workspace/o/r/tmp": "", "/var/run/docker.sock": "/tmp/p/docker.sock", "/volumes": "/daemon/volumes"})
client := &http.Client{Timeout: 5 * time.Second, Transport: &http.Transport{DialContext: func(ctx context.Context, _, _ string) (net.Conn, error) {
return (&net.Dialer{}).DialContext(ctx, "unix", proxy.Socket)
}}}
t.Cleanup(client.CloseIdleConnections)
dialProxy := func(t *testing.T) *net.UnixConn {
t.Helper()
conn, err := net.DialUnix("unix", nil, &net.UnixAddr{Name: proxy.Socket, Net: "unix"})
require.NoError(t, err)
t.Cleanup(func() { _ = conn.Close() })
require.NoError(t, conn.SetDeadline(time.Now().Add(5*time.Second)))
return conn
}
startStream := func(t *testing.T, path, upgrade string) (*net.UnixConn, *bufio.Reader) {
t.Helper()
conn := dialProxy(t)
_, err := fmt.Fprintf(conn, "POST %s HTTP/1.1\r\nHost: docker\r\n%sContent-Length: 2\r\n\r\n{}input", path, upgrade)
require.NoError(t, err)
reader := bufio.NewReader(conn)
resp, err := http.ReadResponse(reader, nil)
require.NoError(t, err)
t.Cleanup(func() {
_ = conn.Close()
_ = resp.Body.Close()
})
prefix, err := reader.ReadString('\n')
require.NoError(t, err)
require.Equal(t, "ready\n", prefix)
return conn, reader
}
t.Run("labels creates", func(t *testing.T) {
for _, testCase := range []struct{ path, body, want string }{
{
"/v1.47/containers/create", `{"Image":"alpine","Unknown":{"enabled":true},"Labels":{"own":"1","com.gitea.runner.job.job-0":""}}`,
`{"Image":"alpine","Unknown":{"enabled":true},"Labels":{"own":"1","com.gitea.runner.job.job-0":"","com.gitea.runner.job.job-1":""}}`,
},
{
"/containers/create", `{"HostConfig":{"Binds":["/workspace/o/r:/src:ro","/workspace/o/r/../r/sub/:/sub","workspace/o/r:/relative","/workspace/o/rest:/rest","/workspace/o/r/tmp/x:/tmp","named:/named","/anonymous","/workspace/o/r:ro","/volumes/job/_data/x:/daemon-path"]},"DriverOpts":{"o":"bind","device":"/workspace/o/r"},"Labels":{"Foo":"1","foo":"2"}}`,
`{"HostConfig":{"Binds":["/volumes/job/_data:/src:ro","/volumes/job/_data/sub:/sub","workspace/o/r:/relative","/workspace/o/rest:/rest","/workspace/o/r/tmp/x:/tmp","named:/named","/anonymous","/workspace/o/r:ro","/volumes/job/_data/x:/daemon-path"]},"DriverOpts":{"o":"bind","device":"/workspace/o/r"},"Labels":{"Foo":"1","foo":"2","com.gitea.runner.job.job-1":""}}`,
},
{
"/containers/create", `{"HostConfig":{"Mounts":[{"Type":"bind","Source":"/var/run/docker.sock","Target":"/var/run/docker.sock"},{"type":"bind","source":"/workspace/o/r/sub/","target":"/m"},{"Type":"bind","Source":"/workspace/o/r/sub/../data","Target":"/dotted"},{"Type":"bind","Source":"/workspace/o/r/../r","Target":"/escaping"},{"Type":"BIND","Source":"/workspace/o/r"},{"Type":"volume","Source":"/workspace/o/r"}]}}`,
`{"HostConfig":{"Mounts":[{"Type":"bind","Source":"/tmp/p/docker.sock","Target":"/var/run/docker.sock"},{"Type":"bind","Source":"/volumes/job/_data/sub/","target":"/m"},{"Type":"bind","Source":"/volumes/job/_data/sub/../data","Target":"/dotted"},{"Type":"bind","Source":"/volumes/job/_data","Target":"/escaping"},{"Type":"BIND","Source":"/workspace/o/r"},{"Type":"volume","Source":"/workspace/o/r"}]},"Labels":{"com.gitea.runner.job.job-1":""}}`,
},
{
"/containers/create", `{"HostConfig":{"Mounts":[{"Type":"volume","VolumeOptions":{"DriverConfig":{"Options":{"o":"bind","device":"/workspace/o/r/data"}}}},{"Type":"volume","VolumeOptions":{"DriverConfig":{"Options":{"o":"unbindable","device":"/workspace/o/r"}}}},{"Type":"volume","VolumeOptions":{"DriverConfig":{"Options":{"o":"bind,remount","device":"/workspace/o/r"}}}},{"Type":"volume","VolumeOptions":{"DriverConfig":{"Name":"plugin","Options":{"o":"bind","device":"/workspace/o/r"}}}}]}}`,
`{"HostConfig":{"Mounts":[{"Type":"volume","VolumeOptions":{"DriverConfig":{"Options":{"o":"bind","device":"/volumes/job/_data/data"}}}},{"Type":"volume","VolumeOptions":{"DriverConfig":{"Options":{"o":"unbindable","device":"/workspace/o/r"}}}},{"Type":"volume","VolumeOptions":{"DriverConfig":{"Options":{"o":"bind,remount","device":"/workspace/o/r"}}}},{"Type":"volume","VolumeOptions":{"DriverConfig":{"Name":"plugin","Options":{"o":"bind","device":"/workspace/o/r"}}}}]},"Labels":{"com.gitea.runner.job.job-1":""}}`,
},
{
"/containers/create", `{"HostConfig":{"privileged":true,"Privileged":false,"Binds":["/workspace/o/r:/src"]},"hoſtconfig":null}`,
`{"HostConfig":{"privileged":true,"Privileged":false,"Binds":["/workspace/o/r:/src"]},"hoſtconfig":null,"Labels":{"com.gitea.runner.job.job-1":""}}`,
},
{
"/networks/create", `{"Name":"n"}`,
`{"Name":"n","Labels":{"com.gitea.runner.job.job-1":""}}`,
},
{
"/volumes/create", `{"Name":"v","labels":null,"DriverOpts":{"type":"none","o":"rbind,ro","device":"/workspace/o/r/"},"HostConfig":{"Binds":["/workspace/o/r:/src"]}}`,
`{"Name":"v","Labels":{"com.gitea.runner.job.job-1":""},"DriverOpts":{"type":"none","o":"rbind,ro","device":"/volumes/job/_data/"},"HostConfig":{"Binds":["/workspace/o/r:/src"]}}`,
},
{
"/volumes/create", `{"Name":"d","DriverOpts":{"o":"bind","device":1,"device":"/workspace/o/r"}}`,
`{"Name":"d","DriverOpts":{"o":"bind","device":1,"device":"/workspace/o/r"},"Labels":{"com.gitea.runner.job.job-1":""}}`,
},
{
"/volumes/create", `{"Name":"p","Driver":"plugin","DriverOpts":{"o":"bind","device":"/workspace/o/r"}}`,
`{"Name":"p","Driver":"plugin","DriverOpts":{"o":"bind","device":"/workspace/o/r"},"Labels":{"com.gitea.runner.job.job-1":""}}`,
},
{
"/volumes/create", "",
`{"Labels":{"com.gitea.runner.job.job-1":""}}`,
},
{
"/volumes/create", "null",
`{"Labels":{"com.gitea.runner.job.job-1":""}}`,
},
{
"/volumes/create", `{"Labels":{"discard":"1"},"labels":null,"LABELS":{"own":"1"},"LABELS":{"extra":"2"}}`,
`{"Labels":{"own":"1","extra":"2","com.gitea.runner.job.job-1":""}}`,
},
} {
resp, err := client.Post("http://docker"+testCase.path, "application/json", strings.NewReader(testCase.body))
require.NoError(t, err)
resp.Body.Close()
require.Equal(t, http.StatusCreated, resp.StatusCode)
assert.JSONEq(t, testCase.want, string(<-bodies), testCase.body)
}
})
t.Run("passes other requests through", func(t *testing.T) {
resp, err := client.Get("http://docker/v1.47/_ping")
require.NoError(t, err)
defer resp.Body.Close()
body, _ := io.ReadAll(resp.Body)
assert.Equal(t, "1.47", resp.Header.Get("Api-Version"))
assert.Equal(t, "OK GET /v1.47/_ping", string(body))
})
t.Run("discovery caches only successes", func(t *testing.T) {
if runtime.GOOS != "linux" {
t.Skip("automatic proxy discovery requires Linux")
}
t.Setenv("DOCKER_HOST", "unix://"+daemonSocket)
t.Setenv("TMPDIR", shortTempDir(t))
require.Nil(t, NewDockerProxy(t.Context(), "failed"))
for _, job := range []string{"first", "second"} {
proxy := NewDockerProxy(t.Context(), job)
require.NotNil(t, proxy)
require.NoError(t, proxy.Close(context.Background()))
}
assert.EqualValues(t, 2, probes.Load())
dockerProxyDirectories.Range(func(key, value any) bool {
directory, _ := value.(dockerProxyDirectory)
directory.socket, _ = os.Stat(t.TempDir())
dockerProxyDirectories.Store(key, directory)
return true
})
proxy := NewDockerProxy(t.Context(), "replaced daemon")
require.NotNil(t, proxy)
require.NoError(t, proxy.Close(context.Background()))
assert.EqualValues(t, 3, probes.Load())
})
t.Run("tunnels raw streams through stdin EOF", func(t *testing.T) {
for _, stream := range []struct{ path, upgrade string }{
{path: "/v1.47/exec/abc/start"},
{path: "/containers/abc/attach", upgrade: "Connection: Upgrade\r\nUpgrade: tcp\r\n"},
} {
conn, reader := startStream(t, stream.path, stream.upgrade)
require.NoError(t, conn.CloseWrite())
output, err := io.ReadAll(reader)
require.NoError(t, err)
assert.Equal(t, "final:input", string(output))
<-streamsDone
}
})
t.Run("detached and error responses retain keepalive label injection", func(t *testing.T) {
conn := dialProxy(t)
reader := bufio.NewReader(conn)
for endpoint, status := range map[string]int{"detached": http.StatusOK, "error": http.StatusBadRequest} {
_, err := fmt.Fprintf(conn, "POST /exec/%s/start HTTP/1.1\r\nHost: docker\r\nContent-Length: 2\r\n\r\n{}", endpoint)
require.NoError(t, err)
resp, err := http.ReadResponse(reader, nil)
require.NoError(t, err)
body, err := io.ReadAll(resp.Body)
require.NoError(t, err)
require.NoError(t, resp.Body.Close())
assert.Equal(t, status, resp.StatusCode)
assert.Equal(t, "ordinary", string(body))
_, err = io.WriteString(conn, "POST /volumes/create HTTP/1.1\r\nHost: docker\r\nContent-Length: 0\r\n\r\n")
require.NoError(t, err)
resp, err = http.ReadResponse(reader, nil)
require.NoError(t, err)
require.NoError(t, resp.Body.Close())
require.Equal(t, http.StatusCreated, resp.StatusCode)
assert.JSONEq(t, `{"Labels":{"com.gitea.runner.job.job-1":""}}`, string(<-bodies))
}
})
t.Run("close joins streams and admitted create", func(t *testing.T) {
t.Cleanup(func() { close(releaseCreate) })
_, raw := startStream(t, "/exec/live/start", "")
_, upgraded := startStream(t, "/session", "Connection: Upgrade\r\nUpgrade: tcp\r\n")
creator := dialProxy(t)
_, err := io.WriteString(creator, "POST /volumes/create?wait HTTP/1.1\r\nHost: docker\r\nContent-Length: 2\r\n\r\n{}")
require.NoError(t, err)
<-createStarted
require.NoError(t, creator.CloseWrite())
closed := make(chan error, 1)
ctx, cancel := context.WithTimeout(t.Context(), 5*time.Second)
defer cancel()
go func() { closed <- proxy.Close(ctx) }()
for _, reader := range []*bufio.Reader{raw, upgraded} {
_, err := reader.ReadByte()
require.ErrorIs(t, err, io.EOF)
<-streamsDone
}
select {
case err := <-closed:
t.Fatalf("Close returned before admitted create settled: %v", err)
default:
}
releaseCreate <- struct{}{}
resp, err := http.ReadResponse(bufio.NewReader(creator), nil)
require.NoError(t, err)
require.NoError(t, resp.Body.Close())
require.Equal(t, http.StatusCreated, resp.StatusCode)
assert.JSONEq(t, `{"Labels":{"com.gitea.runner.job.job-1":""}}`, string(<-bodies))
require.NoError(t, <-closed)
})
}
func TestRemoveLabelledRemovesContainersNetworksAndVolumes(t *testing.T) {
containerFailure := errors.New("container removal failed")
listFailure := errors.New("listing failed")
volumeFailure := errors.New("volume removal failed")
ctx := t.Context()
filters := make(mobyclient.Filters).Add("label", jobLabel+"job-1")
cli := &mockDockerClient{}
cli.On("ContainerList", ctx, mobyclient.ContainerListOptions{All: true, Filters: filters}).
Return(mobyclient.ContainerListResult{Items: []container.Summary{{ID: "c1", Names: []string{"/app"}}}}, nil).Once()
cli.On("ContainerKill", ctx, "c1", mock.Anything).Return(mobyclient.ContainerKillResult{}, nil).Once()
cli.On("ContainerRemove", ctx, "c1", mobyclient.ContainerRemoveOptions{RemoveVolumes: true, Force: true}).
Return(mobyclient.ContainerRemoveResult{}, containerFailure).Once()
cli.On("NetworkList", ctx, mobyclient.NetworkListOptions{Filters: filters}).
Return(mobyclient.NetworkListResult{Items: []network.Summary{{ID: "n1", Name: "stack_default", Scope: "swarm"}}}, listFailure).Once()
cli.On("NetworkRemove", ctx, "n1", mobyclient.NetworkRemoveOptions{}).Return(mobyclient.NetworkRemoveResult{}, cerrdefs.ErrInvalidArgument).Once()
cli.On("VolumeList", ctx, mobyclient.VolumeListOptions{Filters: filters}).
Return(mobyclient.VolumeListResult{Items: []volume.Volume{{Name: "app_data"}}}, nil).Once()
cli.On("VolumeRemove", ctx, "app_data", mobyclient.VolumeRemoveOptions{}).Return(mobyclient.VolumeRemoveResult{}, volumeFailure).Once()
err := removeLabelled(ctx, cli, "job-1")
require.ErrorIs(t, err, containerFailure)
require.ErrorIs(t, err, listFailure)
require.ErrorIs(t, err, volumeFailure)
require.NotErrorIs(t, err, cerrdefs.ErrInvalidArgument)
require.ErrorContains(t, err, "failed to remove container c1")
require.ErrorContains(t, err, "failed to remove volume app_data")
cli.AssertExpectations(t)
}
func TestDockerProxyWithDaemon(t *testing.T) {
requireDocker(t)
ctx := t.Context()
cleanupCtx := context.WithoutCancel(ctx)
require.NoError(t, NewDockerPullExecutor(NewDockerPullExecutorInput{Image: "alpine"})(ctx))
direct, err := GetDockerClient(ctx)
require.NoError(t, err)
defer direct.Close()
dir := shortTempDir(t)
seen, err := daemonSeesDir(ctx, direct, dir, dir)
require.NoError(t, err)
t.Logf("daemon sees the runner's filesystem: %v", seen)
seen, err = daemonSeesDir(ctx, direct, dir, shortTempDir(t))
require.NoError(t, err)
assert.False(t, seen)
job := "proxy-test-" + strconv.FormatInt(time.Now().UnixNano(), 36)
proxy, err := StartDockerProxy(daemonSocketPath(t, direct), dir, job)
if os.Geteuid() != 0 && errors.Is(err, os.ErrPermission) {
t.Skipf("non-root runners that cannot take the daemon socket's ownership get it directly: %v", err)
}
require.NoError(t, err)
t.Cleanup(func() { _ = proxy.Close(context.Background()) })
viaProxy, err := mobyclient.New(mobyclient.WithHost("unix://" + proxy.Socket))
require.NoError(t, err)
defer viaProxy.Close()
created, err := viaProxy.ContainerCreate(ctx, mobyclient.ContainerCreateOptions{
Config: &container.Config{Image: "alpine", Cmd: []string{"sleep", "300"}, Labels: map[string]string{"own": "1"}},
})
require.NoError(t, err)
t.Cleanup(func() {
_, _ = direct.ContainerRemove(cleanupCtx, created.ID, mobyclient.ContainerRemoveOptions{Force: true})
})
_, err = viaProxy.ContainerStart(ctx, created.ID, mobyclient.ContainerStartOptions{})
require.NoError(t, err)
net, err := viaProxy.NetworkCreate(ctx, job, mobyclient.NetworkCreateOptions{})
require.NoError(t, err)
t.Cleanup(func() { _, _ = direct.NetworkRemove(cleanupCtx, net.ID, mobyclient.NetworkRemoveOptions{}) })
_, err = viaProxy.VolumeCreate(ctx, mobyclient.VolumeCreateOptions{Name: job})
require.NoError(t, err)
t.Cleanup(func() { _, _ = direct.VolumeRemove(cleanupCtx, job, mobyclient.VolumeRemoveOptions{Force: true}) })
inspected, err := direct.ContainerInspect(ctx, created.ID, mobyclient.ContainerInspectOptions{})
require.NoError(t, err)
assert.Subset(t, inspected.Container.Config.Labels, map[string]string{"own": "1", jobLabel + job: ""})
vol, err := direct.VolumeInspect(ctx, job, mobyclient.VolumeInspectOptions{})
require.NoError(t, err)
assert.Contains(t, vol.Volume.Labels, jobLabel+job)
exec, err := viaProxy.ExecCreate(ctx, created.ID, mobyclient.ExecCreateOptions{Cmd: []string{"cat"}, AttachStdin: true, AttachStdout: true, TTY: true})
require.NoError(t, err)
attached, err := viaProxy.ExecAttach(ctx, exec.ID, mobyclient.ExecAttachOptions{TTY: true})
require.NoError(t, err)
_, err = attached.Conn.Write([]byte("hello\n"))
require.NoError(t, err)
echoed, err := attached.Reader.ReadString('\n')
require.NoError(t, err)
assert.Equal(t, "hello\r\n", echoed)
attached.Close()
require.NoError(t, proxy.Close(ctx))
require.NoError(t, RemoveDockerJobResources(ctx, job))
_, err = direct.ContainerInspect(ctx, created.ID, mobyclient.ContainerInspectOptions{})
assert.True(t, cerrdefs.IsNotFound(err))
_, err = direct.NetworkInspect(ctx, net.ID, mobyclient.NetworkInspectOptions{})
assert.True(t, cerrdefs.IsNotFound(err))
_, err = direct.VolumeInspect(ctx, job, mobyclient.VolumeInspectOptions{})
assert.True(t, cerrdefs.IsNotFound(err))
}
func BenchmarkDockerProxy(b *testing.B) {
ctx := context.Background()
direct, err := GetDockerClient(ctx)
require.NoError(b, err)
defer direct.Close()
if _, err := direct.Ping(ctx, mobyclient.PingOptions{}); err != nil {
b.Skipf("docker daemon unreachable: %v", err)
}
proxy, err := StartDockerProxy(daemonSocketPath(b, direct), shortTempDir(b), "bench")
require.NoError(b, err)
defer func() { _ = proxy.Close(ctx) }()
viaProxy, err := mobyclient.New(mobyclient.WithHost("unix://" + proxy.Socket))
require.NoError(b, err)
defer viaProxy.Close()
require.NoError(b, NewDockerPullExecutor(NewDockerPullExecutorInput{Image: "alpine"})(ctx))
created, err := direct.ContainerCreate(ctx, mobyclient.ContainerCreateOptions{Config: &container.Config{Image: "alpine", Cmd: []string{"sleep", "600"}}})
require.NoError(b, err)
defer func() { _, _ = direct.ContainerRemove(ctx, created.ID, mobyclient.ContainerRemoveOptions{Force: true}) }()
_, err = direct.ContainerStart(ctx, created.ID, mobyclient.ContainerStartOptions{})
require.NoError(b, err)
var archive bytes.Buffer
writer := tar.NewWriter(&archive)
payload := make([]byte, 64<<20)
require.NoError(b, writer.WriteHeader(&tar.Header{Name: "blob", Mode: 0o600, Size: int64(len(payload))}))
_, _ = writer.Write(payload)
require.NoError(b, writer.Close())
for name, cli := range map[string]mobyclient.APIClient{"direct": direct, "proxy": viaProxy} {
b.Run("ping/"+name, func(b *testing.B) {
for b.Loop() {
if _, err := cli.Ping(ctx, mobyclient.PingOptions{}); err != nil {
b.Fatal(err)
}
}
})
b.Run("copy64MiB/"+name, func(b *testing.B) {
b.SetBytes(int64(archive.Len()))
for b.Loop() {
_, err := cli.CopyToContainer(ctx, created.ID, mobyclient.CopyToContainerOptions{DestinationPath: "/tmp", Content: bytes.NewReader(archive.Bytes())})
if err != nil {
b.Fatal(err)
}
}
})
}
}
type probeClient struct {
mobyclient.APIClient
create func(mobyclient.ContainerCreateOptions) (mobyclient.ContainerCreateResult, error)
remove func(context.Context, string, mobyclient.ContainerRemoveOptions) (mobyclient.ContainerRemoveResult, error)
stat func(string) error
mounts []container.MountPoint
}
func (c *probeClient) ContainerInspect(context.Context, string, mobyclient.ContainerInspectOptions) (mobyclient.ContainerInspectResult, error) {
return mobyclient.ContainerInspectResult{Container: container.InspectResponse{Mounts: c.mounts}}, nil
}
func (c *probeClient) ImageList(context.Context, mobyclient.ImageListOptions) (mobyclient.ImageListResult, error) {
return mobyclient.ImageListResult{Items: []image.Summary{{ID: "removed-image"}, {ID: "probe-image"}}}, nil
}
func (c *probeClient) ContainerCreate(_ context.Context, opts mobyclient.ContainerCreateOptions) (mobyclient.ContainerCreateResult, error) {
return c.create(opts)
}
func (c *probeClient) ContainerRemove(ctx context.Context, id string, opts mobyclient.ContainerRemoveOptions) (mobyclient.ContainerRemoveResult, error) {
return c.remove(ctx, id, opts)
}
func (c *probeClient) ContainerStatPath(_ context.Context, _ string, opts mobyclient.ContainerStatPathOptions) (mobyclient.ContainerStatPathResult, error) {
return mobyclient.ContainerStatPathResult{}, c.stat(opts.Path)
}
func TestDockerProxyDirectoryProbes(t *testing.T) {
type result struct {
seen bool
err error
}
for name, createErr := range map[string]error{"unavailable directory": nil, "daemon error": errors.New("probe failed")} {
t.Run(name, func(t *testing.T) {
synctest.Test(t, func(t *testing.T) {
dir := t.TempDir()
socket, err := os.Stat(t.TempDir())
require.NoError(t, err)
key := [3]string{"daemon", dir, dir}
release := make(chan struct{})
var calls, removals atomic.Int32
visible := false
cli := &probeClient{
create: func(_opts mobyclient.ContainerCreateOptions) (mobyclient.ContainerCreateResult, error) {
calls.Add(1)
<-release
return mobyclient.ContainerCreateResult{ID: "probe"}, createErr
},
stat: func(_path string) error {
if visible {
return nil
} else {
return cerrdefs.ErrNotFound
}
},
remove: func(_ctx context.Context, _id string, _opts mobyclient.ContainerRemoveOptions) (mobyclient.ContainerRemoveResult, error) {
removals.Add(1)
return mobyclient.ContainerRemoveResult{}, nil
},
}
results := make(chan result, 8)
for range cap(results) {
go func() {
_, seen, err := probeDockerProxyDirectory(t.Context(), cli, key, socket)
results <- result{seen, err}
}()
}
synctest.Wait()
assert.EqualValues(t, 1, calls.Load())
ctx, cancel := context.WithCancel(t.Context())
cancel()
_, seen, err := probeDockerProxyDirectory(ctx, cli, key, socket)
require.ErrorIs(t, err, context.Canceled)
assert.False(t, seen)
replacement, err := os.Stat(t.TempDir())
require.NoError(t, err)
replaced := make(chan result, 1)
go func() {
_, seen, err := probeDockerProxyDirectory(t.Context(), cli, key, replacement)
replaced <- result{seen, err}
}()
synctest.Wait()
assert.EqualValues(t, 2, calls.Load())
close(release)
for range cap(results) {
result := <-results
require.ErrorIs(t, result.err, createErr)
assert.False(t, result.seen)
}
replacementResult := <-replaced
require.ErrorIs(t, replacementResult.err, createErr)
assert.False(t, replacementResult.seen)
assert.EqualValues(t, 2, calls.Load())
if createErr == nil {
assert.EqualValues(t, 2, removals.Load())
} else {
assert.Zero(t, removals.Load())
}
createErr, visible = nil, true
directory, seen, err := probeDockerProxyDirectory(t.Context(), cli, key, socket)
require.NoError(t, err)
assert.True(t, seen)
assert.Equal(t, dir, directory.dir)
assert.Equal(t, dir, directory.daemonDir)
assert.EqualValues(t, 3, calls.Load())
entries, err := os.ReadDir(dir)
require.NoError(t, err)
assert.Empty(t, entries)
})
})
}
t.Run("cancelled probe does not cancel another caller", func(t *testing.T) {
synctest.Test(t, func(t *testing.T) {
dir := t.TempDir()
socket, err := os.Stat(t.TempDir())
require.NoError(t, err)
key := [3]string{"daemon", dir, dir}
ctx, cancel := context.WithCancel(t.Context())
defer cancel()
release := make(chan struct{})
calls := 0
cli := &probeClient{
create: func(_opts mobyclient.ContainerCreateOptions) (mobyclient.ContainerCreateResult, error) {
calls++
if calls == 1 {
<-release
return mobyclient.ContainerCreateResult{}, ctx.Err()
} else {
return mobyclient.ContainerCreateResult{ID: "probe"}, nil
}
},
stat: func(_path string) error { return nil },
remove: func(_ctx context.Context, _id string, _opts mobyclient.ContainerRemoveOptions) (mobyclient.ContainerRemoveResult, error) {
return mobyclient.ContainerRemoveResult{}, nil
},
}
leader, follower := make(chan result, 1), make(chan result, 1)
go func() {
_, seen, err := probeDockerProxyDirectory(ctx, cli, key, socket)
leader <- result{seen, err}
}()
synctest.Wait()
go func() {
_, seen, err := probeDockerProxyDirectory(t.Context(), cli, key, socket)
follower <- result{seen, err}
}()
synctest.Wait()
assert.Equal(t, 1, calls)
cancel()
close(release)
leaderResult, followerResult := <-leader, <-follower
require.ErrorIs(t, leaderResult.err, context.Canceled)
assert.False(t, leaderResult.seen)
require.NoError(t, followerResult.err)
assert.True(t, followerResult.seen)
assert.Equal(t, 2, calls)
})
})
}
func TestDaemonSeesDir(t *testing.T) {
dir := t.TempDir()
markers := make(map[string]bool)
for _, testCase := range []struct {
name string
daemonDir string
removeErr error
seen bool
removed bool
}{
{name: "cleanup after cancellation", daemonDir: dir, seen: true, removed: true},
{name: "daemon without the directory", daemonDir: filepath.Join(dir, "missing")},
{name: "daemon with a different directory at that path", daemonDir: t.TempDir(), removed: true},
{name: "cleanup error after cancellation", daemonDir: dir, removeErr: errors.New("cleanup failed"), removed: true},
} {
t.Run(testCase.name, func(t *testing.T) {
ctx, cancel := context.WithCancel(t.Context())
defer cancel()
removed := false
var attemptedImages []string
cli := &probeClient{
create: func(opts mobyclient.ContainerCreateOptions) (mobyclient.ContainerCreateResult, error) {
assert.Equal(t, []mount.Mount{{Type: mount.TypeBind, Source: testCase.daemonDir, Target: "/gitea-runner-probe", ReadOnly: true}}, opts.HostConfig.Mounts)
attemptedImages = append(attemptedImages, opts.Config.Image)
if opts.Config.Image == "removed-image" {
return mobyclient.ContainerCreateResult{}, cerrdefs.ErrNotFound
}
cancel()
if _, err := os.Stat(testCase.daemonDir); err != nil {
return mobyclient.ContainerCreateResult{}, cerrdefs.ErrInvalidArgument
}
return mobyclient.ContainerCreateResult{ID: "probe"}, nil
},
stat: func(path string) error {
marker := strings.TrimPrefix(path, "/gitea-runner-probe/")
assert.False(t, markers[marker])
markers[marker] = true
if _, err := os.Stat(filepath.Join(testCase.daemonDir, marker)); err != nil {
return cerrdefs.ErrNotFound
}
return nil
},
remove: func(ctx context.Context, id string, opts mobyclient.ContainerRemoveOptions) (mobyclient.ContainerRemoveResult, error) {
removed = true
assert.Equal(t, "probe", id)
assert.Equal(t, mobyclient.ContainerRemoveOptions{Force: true, RemoveVolumes: true}, opts)
require.NoError(t, ctx.Err())
_, bounded := ctx.Deadline()
assert.True(t, bounded)
return mobyclient.ContainerRemoveResult{}, testCase.removeErr
},
}
seen, err := daemonSeesDir(ctx, cli, dir, testCase.daemonDir)
require.ErrorIs(t, err, testCase.removeErr)
assert.Equal(t, []string{"removed-image", "probe-image"}, attemptedImages)
assert.Equal(t, testCase.seen, seen)
assert.Equal(t, testCase.removed, removed)
entries, err := os.ReadDir(dir)
require.NoError(t, err)
assert.Empty(t, entries)
})
}
}
func TestRunnerContainerWorkdir(t *testing.T) {
workdir := t.TempDir()
t.Chdir(workdir)
volume := container.MountPoint{Type: mount.TypeVolume, Source: "/daemon/_data", Destination: filepath.Dir(workdir)}
for _, testCase := range []struct {
name string
mount container.MountPoint
foreign bool
daemonDir string
}{
{name: "volume above the working directory", mount: volume, daemonDir: filepath.Join(volume.Source, filepath.Base(workdir))},
{name: "tmpfs", mount: container.MountPoint{Type: mount.TypeTmpfs, Destination: volume.Destination}},
{name: "hostname of another container", mount: volume, foreign: true},
} {
cli := &probeClient{
mounts: []container.MountPoint{testCase.mount},
stat: func(path string) error {
if _, err := os.Stat(path); err != nil || testCase.foreign {
return cerrdefs.ErrNotFound
}
return nil
},
}
dir, daemonDir := runnerContainerWorkdir(t.Context(), cli)
assert.Equal(t, testCase.daemonDir, daemonDir, testCase.name)
assert.Equal(t, testCase.daemonDir != "", dir == workdir, testCase.name)
}
entries, err := os.ReadDir(workdir)
require.NoError(t, err)
assert.Empty(t, entries)
}