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integration_test.go
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package integration_test
import (
"bufio"
"bytes"
"context"
"encoding/base64"
"encoding/json"
"encoding/pem"
"errors"
"fmt"
"io"
"net/http"
"net/http/httptest"
"net/http/httputil"
"net/url"
"os"
"os/exec"
"path/filepath"
"strings"
"testing"
"time"
"github.com/coder/envbuilder"
"github.com/coder/envbuilder/devcontainer/features"
"github.com/coder/envbuilder/testutil/gittest"
"github.com/coder/envbuilder/testutil/mwtest"
"github.com/coder/envbuilder/testutil/registrytest"
clitypes "github.com/docker/cli/cli/config/types"
"github.com/docker/docker/api/types"
"github.com/docker/docker/api/types/container"
"github.com/docker/docker/api/types/filters"
"github.com/docker/docker/api/types/image"
"github.com/docker/docker/api/types/mount"
"github.com/docker/docker/api/types/volume"
"github.com/docker/docker/client"
"github.com/docker/docker/pkg/stdcopy"
"github.com/go-git/go-billy/v5/memfs"
"github.com/google/go-containerregistry/pkg/authn"
"github.com/google/go-containerregistry/pkg/name"
"github.com/google/go-containerregistry/pkg/registry"
"github.com/google/go-containerregistry/pkg/v1/remote"
"github.com/google/go-containerregistry/pkg/v1/remote/transport"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
const (
testContainerLabel = "envbox-integration-test"
testImageAlpine = "localhost:5000/envbuilder-test-alpine:latest"
testImageUbuntu = "localhost:5000/envbuilder-test-ubuntu:latest"
)
func TestInitScriptInitCommand(t *testing.T) {
t.Parallel()
ctx, cancel := context.WithTimeout(context.Background(), time.Minute)
defer cancel()
// Init script will hit the below handler to signify INIT_SCRIPT works.
initCalled := make(chan struct{})
initSrv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
initCalled <- struct{}{}
w.WriteHeader(http.StatusOK)
}))
srv := createGitServer(t, gitServerOptions{
files: map[string]string{
// Let's say /bin/sh is not available and we can only use /bin/ash
"Dockerfile": fmt.Sprintf("FROM %s\nRUN unlink /bin/sh", testImageAlpine),
},
})
_, err := runEnvbuilder(t, options{env: []string{
envbuilderEnv("GIT_URL", srv.URL),
envbuilderEnv("DOCKERFILE_PATH", "Dockerfile"),
envbuilderEnv("INIT_SCRIPT", fmt.Sprintf(`wget -O - %q`, initSrv.URL)),
envbuilderEnv("INIT_COMMAND", "/bin/ash"),
}})
require.NoError(t, err)
select {
case <-initCalled:
case <-ctx.Done():
}
require.NoError(t, ctx.Err(), "init script did not execute for prefixed env vars")
_, err = runEnvbuilder(t, options{env: []string{
envbuilderEnv("GIT_URL", srv.URL),
envbuilderEnv("DOCKERFILE_PATH", "Dockerfile"),
fmt.Sprintf(`INIT_SCRIPT=wget -O - %q`, initSrv.URL),
`INIT_COMMAND=/bin/ash`,
}})
require.NoError(t, err)
select {
case <-initCalled:
case <-ctx.Done():
}
require.NoError(t, ctx.Err(), "init script did not execute for legacy env vars")
}
func TestUidGid(t *testing.T) {
t.Parallel()
t.Run("MultiStage", func(t *testing.T) {
t.Parallel()
dockerFile := fmt.Sprintf(`FROM %s AS builder
RUN mkdir -p /myapp/somedir \
&& touch /myapp/somedir/somefile \
&& chown 123:123 /myapp/somedir \
&& chown 321:321 /myapp/somedir/somefile
FROM %s
COPY --from=builder /myapp /myapp
RUN printf "%%s\n" \
"0 0 /myapp/" \
"123 123 /myapp/somedir" \
"321 321 /myapp/somedir/somefile" \
> /tmp/expected \
&& stat -c "%%u %%g %%n" \
/myapp/ \
/myapp/somedir \
/myapp/somedir/somefile \
> /tmp/got \
&& diff -u /tmp/got /tmp/expected`, testImageAlpine, testImageAlpine)
srv := createGitServer(t, gitServerOptions{
files: map[string]string{
"Dockerfile": dockerFile,
},
})
_, err := runEnvbuilder(t, options{env: []string{
envbuilderEnv("GIT_URL", srv.URL),
envbuilderEnv("DOCKERFILE_PATH", "Dockerfile"),
}})
require.NoError(t, err)
})
t.Run("SingleStage", func(t *testing.T) {
t.Parallel()
dockerFile := fmt.Sprintf(`FROM %s
RUN mkdir -p /myapp/somedir \
&& touch /myapp/somedir/somefile \
&& chown 123:123 /myapp/somedir \
&& chown 321:321 /myapp/somedir/somefile \
&& printf "%%s\n" \
"0 0 /myapp/" \
"123 123 /myapp/somedir" \
"321 321 /myapp/somedir/somefile" \
> /tmp/expected \
&& stat -c "%%u %%g %%n" \
/myapp/ \
/myapp/somedir \
/myapp/somedir/somefile \
> /tmp/got \
&& diff -u /tmp/got /tmp/expected`, testImageAlpine)
srv := createGitServer(t, gitServerOptions{
files: map[string]string{
"Dockerfile": dockerFile,
},
})
_, err := runEnvbuilder(t, options{env: []string{
envbuilderEnv("GIT_URL", srv.URL),
envbuilderEnv("DOCKERFILE_PATH", "Dockerfile"),
}})
require.NoError(t, err)
})
}
func TestForceSafe(t *testing.T) {
t.Parallel()
t.Run("Safe", func(t *testing.T) {
t.Parallel()
srv := createGitServer(t, gitServerOptions{
files: map[string]string{
"Dockerfile": "FROM " + testImageAlpine,
},
})
_, err := runEnvbuilder(t, options{env: []string{
envbuilderEnv("GIT_URL", srv.URL),
"KANIKO_DIR=/not/envbuilder",
envbuilderEnv("DOCKERFILE_PATH", "Dockerfile"),
}})
require.ErrorContains(t, err, "delete filesystem: safety check failed")
})
// Careful with this one!
t.Run("Unsafe", func(t *testing.T) {
t.Parallel()
srv := createGitServer(t, gitServerOptions{
files: map[string]string{
"Dockerfile": "FROM " + testImageAlpine,
},
})
_, err := runEnvbuilder(t, options{env: []string{
envbuilderEnv("GIT_URL", srv.URL),
"KANIKO_DIR=/not/envbuilder",
envbuilderEnv("FORCE_SAFE", "true"),
envbuilderEnv("DOCKERFILE_PATH", "Dockerfile"),
}})
require.NoError(t, err)
})
}
func TestFailsGitAuth(t *testing.T) {
t.Parallel()
srv := createGitServer(t, gitServerOptions{
files: map[string]string{
"Dockerfile": "FROM " + testImageAlpine,
},
username: "kyle",
password: "testing",
})
_, err := runEnvbuilder(t, options{env: []string{
envbuilderEnv("GIT_URL", srv.URL),
}})
require.ErrorContains(t, err, "authentication required")
}
func TestSucceedsGitAuth(t *testing.T) {
t.Parallel()
srv := createGitServer(t, gitServerOptions{
files: map[string]string{
"Dockerfile": "FROM " + testImageAlpine,
},
username: "kyle",
password: "testing",
})
ctr, err := runEnvbuilder(t, options{env: []string{
envbuilderEnv("GIT_URL", srv.URL),
envbuilderEnv("DOCKERFILE_PATH", "Dockerfile"),
envbuilderEnv("GIT_USERNAME", "kyle"),
envbuilderEnv("GIT_PASSWORD", "testing"),
}})
require.NoError(t, err)
gitConfig := execContainer(t, ctr, "cat /workspaces/empty/.git/config")
require.Contains(t, gitConfig, srv.URL)
}
func TestSucceedsGitAuthInURL(t *testing.T) {
t.Parallel()
srv := createGitServer(t, gitServerOptions{
files: map[string]string{
"Dockerfile": "FROM " + testImageAlpine,
},
username: "kyle",
password: "testing",
})
u, err := url.Parse(srv.URL)
require.NoError(t, err)
u.User = url.UserPassword("kyle", "testing")
ctr, err := runEnvbuilder(t, options{env: []string{
envbuilderEnv("GIT_URL", u.String()),
envbuilderEnv("DOCKERFILE_PATH", "Dockerfile"),
}})
require.NoError(t, err)
gitConfig := execContainer(t, ctr, "cat /workspaces/empty/.git/config")
require.Contains(t, gitConfig, u.String())
}
func TestBuildFromDevcontainerWithFeatures(t *testing.T) {
t.Parallel()
registry := registrytest.New(t)
feature1Ref := registrytest.WriteContainer(t, registry, "coder/test1:latest", features.TarLayerMediaType, map[string]any{
"devcontainer-feature.json": &features.Spec{
ID: "test1",
Name: "test1",
Version: "1.0.0",
Options: map[string]features.Option{
"bananas": {
Type: "string",
},
},
},
"install.sh": "echo $BANANAS > /test1output",
})
feature2Ref := registrytest.WriteContainer(t, registry, "coder/test2:latest", features.TarLayerMediaType, map[string]any{
"devcontainer-feature.json": &features.Spec{
ID: "test2",
Name: "test2",
Version: "1.0.0",
Options: map[string]features.Option{
"pineapple": {
Type: "string",
},
},
},
"install.sh": "echo $PINEAPPLE > /test2output",
})
feature3Spec, err := json.Marshal(features.Spec{
ID: "test3",
Name: "test3",
Version: "1.0.0",
Options: map[string]features.Option{
"grape": {
Type: "string",
},
},
})
require.NoError(t, err)
// Ensures that a Git repository with a devcontainer.json is cloned and built.
srv := createGitServer(t, gitServerOptions{
files: map[string]string{
".devcontainer/devcontainer.json": `{
"name": "Test",
"build": {
"dockerfile": "Dockerfile"
},
"features": {
"` + feature1Ref + `": {
"bananas": "hello from test 1!"
},
"` + feature2Ref + `": {
"pineapple": "hello from test 2!"
},
"./feature3": {
"grape": "hello from test 3!"
}
}
}`,
".devcontainer/Dockerfile": "FROM " + testImageUbuntu,
".devcontainer/feature3/devcontainer-feature.json": string(feature3Spec),
".devcontainer/feature3/install.sh": "echo $GRAPE > /test3output",
},
})
ctr, err := runEnvbuilder(t, options{env: []string{
envbuilderEnv("GIT_URL", srv.URL),
}})
require.NoError(t, err)
test1Output := execContainer(t, ctr, "cat /test1output")
require.Equal(t, "hello from test 1!", strings.TrimSpace(test1Output))
test2Output := execContainer(t, ctr, "cat /test2output")
require.Equal(t, "hello from test 2!", strings.TrimSpace(test2Output))
test3Output := execContainer(t, ctr, "cat /test3output")
require.Equal(t, "hello from test 3!", strings.TrimSpace(test3Output))
}
func TestBuildFromDockerfile(t *testing.T) {
// Ensures that a Git repository with a Dockerfile is cloned and built.
srv := createGitServer(t, gitServerOptions{
files: map[string]string{
"Dockerfile": "FROM " + testImageAlpine,
},
})
ctr, err := runEnvbuilder(t, options{env: []string{
envbuilderEnv("GIT_URL", srv.URL),
envbuilderEnv("DOCKERFILE_PATH", "Dockerfile"),
envbuilderEnv("DOCKER_CONFIG_BASE64", base64.StdEncoding.EncodeToString([]byte(`{"experimental": "enabled"}`))),
}})
require.NoError(t, err)
output := execContainer(t, ctr, "echo hello")
require.Equal(t, "hello", strings.TrimSpace(output))
// Verify that the Docker configuration secret file is removed
output = execContainer(t, ctr, "stat "+filepath.Join(envbuilder.MagicDir, "config.json"))
require.Contains(t, output, "No such file or directory")
}
func TestBuildPrintBuildOutput(t *testing.T) {
// Ensures that a Git repository with a Dockerfile is cloned and built.
srv := createGitServer(t, gitServerOptions{
files: map[string]string{
"Dockerfile": "FROM " + testImageAlpine + "\nRUN echo hello",
},
})
ctr, err := runEnvbuilder(t, options{env: []string{
envbuilderEnv("GIT_URL", srv.URL),
envbuilderEnv("DOCKERFILE_PATH", "Dockerfile"),
}})
require.NoError(t, err)
cli, err := client.NewClientWithOpts(client.FromEnv, client.WithAPIVersionNegotiation())
require.NoError(t, err)
defer cli.Close()
// Make sure that "hello" is printed in the logs!
logs, _ := streamContainerLogs(t, cli, ctr)
for {
log := <-logs
if log != "hello" {
continue
}
break
}
}
func TestBuildIgnoreVarRunSecrets(t *testing.T) {
// Ensures that a Git repository with a Dockerfile is cloned and built.
srv := createGitServer(t, gitServerOptions{
files: map[string]string{
"Dockerfile": "FROM " + testImageAlpine,
},
})
dir := t.TempDir()
err := os.WriteFile(filepath.Join(dir, "secret"), []byte("test"), 0o644)
require.NoError(t, err)
ctr, err := runEnvbuilder(t, options{
env: []string{
envbuilderEnv("GIT_URL", srv.URL),
envbuilderEnv("DOCKERFILE_PATH", "Dockerfile"),
},
binds: []string{fmt.Sprintf("%s:/var/run/secrets", dir)},
})
require.NoError(t, err)
output := execContainer(t, ctr, "echo hello")
require.Equal(t, "hello", strings.TrimSpace(output))
}
func TestBuildWithSetupScript(t *testing.T) {
// Ensures that a Git repository with a Dockerfile is cloned and built.
srv := createGitServer(t, gitServerOptions{
files: map[string]string{
"Dockerfile": "FROM " + testImageAlpine,
},
})
ctr, err := runEnvbuilder(t, options{env: []string{
envbuilderEnv("GIT_URL", srv.URL),
envbuilderEnv("DOCKERFILE_PATH", "Dockerfile"),
envbuilderEnv("SETUP_SCRIPT", "echo \"INIT_ARGS=-c 'echo hi > /wow && sleep infinity'\" >> $ENVBUILDER_ENV"),
}})
require.NoError(t, err)
output := execContainer(t, ctr, "cat /wow")
require.Equal(t, "hi", strings.TrimSpace(output))
}
func TestBuildFromDevcontainerInCustomPath(t *testing.T) {
t.Parallel()
// Ensures that a Git repository with a devcontainer.json is cloned and built.
srv := createGitServer(t, gitServerOptions{
files: map[string]string{
".devcontainer/custom/devcontainer.json": `{
"name": "Test",
"build": {
"dockerfile": "Dockerfile"
},
}`,
".devcontainer/custom/Dockerfile": "FROM " + testImageUbuntu,
},
})
ctr, err := runEnvbuilder(t, options{env: []string{
envbuilderEnv("GIT_URL", srv.URL),
envbuilderEnv("DEVCONTAINER_DIR", ".devcontainer/custom"),
}})
require.NoError(t, err)
output := execContainer(t, ctr, "echo hello")
require.Equal(t, "hello", strings.TrimSpace(output))
}
func TestBuildFromDevcontainerInSubfolder(t *testing.T) {
t.Parallel()
// Ensures that a Git repository with a devcontainer.json is cloned and built.
srv := createGitServer(t, gitServerOptions{
files: map[string]string{
".devcontainer/subfolder/devcontainer.json": `{
"name": "Test",
"build": {
"dockerfile": "Dockerfile"
},
}`,
".devcontainer/subfolder/Dockerfile": "FROM " + testImageUbuntu,
},
})
ctr, err := runEnvbuilder(t, options{env: []string{
envbuilderEnv("GIT_URL", srv.URL),
}})
require.NoError(t, err)
output := execContainer(t, ctr, "echo hello")
require.Equal(t, "hello", strings.TrimSpace(output))
}
func TestBuildFromDevcontainerInRoot(t *testing.T) {
t.Parallel()
// Ensures that a Git repository with a devcontainer.json is cloned and built.
srv := createGitServer(t, gitServerOptions{
files: map[string]string{
"devcontainer.json": `{
"name": "Test",
"build": {
"dockerfile": "Dockerfile"
},
}`,
"Dockerfile": "FROM " + testImageUbuntu,
},
})
ctr, err := runEnvbuilder(t, options{env: []string{
envbuilderEnv("GIT_URL", srv.URL),
}})
require.NoError(t, err)
output := execContainer(t, ctr, "echo hello")
require.Equal(t, "hello", strings.TrimSpace(output))
}
func TestBuildCustomCertificates(t *testing.T) {
srv := createGitServer(t, gitServerOptions{
files: map[string]string{
"Dockerfile": "FROM " + testImageAlpine,
},
tls: true,
})
ctr, err := runEnvbuilder(t, options{env: []string{
envbuilderEnv("GIT_URL", srv.URL),
envbuilderEnv("DOCKERFILE_PATH", "Dockerfile"),
envbuilderEnv("SSL_CERT_BASE64", base64.StdEncoding.EncodeToString(pem.EncodeToMemory(&pem.Block{
Type: "CERTIFICATE",
Bytes: srv.TLS.Certificates[0].Certificate[0],
}))),
}})
require.NoError(t, err)
output := execContainer(t, ctr, "echo hello")
require.Equal(t, "hello", strings.TrimSpace(output))
}
func TestBuildStopStartCached(t *testing.T) {
// Ensures that a Git repository with a Dockerfile is cloned and built.
srv := createGitServer(t, gitServerOptions{
files: map[string]string{
"Dockerfile": "FROM " + testImageAlpine,
},
})
ctr, err := runEnvbuilder(t, options{env: []string{
envbuilderEnv("GIT_URL", srv.URL),
envbuilderEnv("DOCKERFILE_PATH", "Dockerfile"),
envbuilderEnv("SKIP_REBUILD", "true"),
}})
require.NoError(t, err)
cli, err := client.NewClientWithOpts(client.FromEnv, client.WithAPIVersionNegotiation())
require.NoError(t, err)
defer cli.Close()
ctx := context.Background()
err = cli.ContainerStop(ctx, ctr, container.StopOptions{})
require.NoError(t, err)
err = cli.ContainerStart(ctx, ctr, container.StartOptions{})
require.NoError(t, err)
logChan, _ := streamContainerLogs(t, cli, ctr)
for {
log := <-logChan
if strings.Contains(log, "Skipping build because of cache") {
break
}
}
}
func TestCloneFailsFallback(t *testing.T) {
t.Parallel()
t.Run("BadRepo", func(t *testing.T) {
t.Parallel()
_, err := runEnvbuilder(t, options{env: []string{
envbuilderEnv("GIT_URL", "bad-value"),
}})
require.ErrorContains(t, err, envbuilder.ErrNoFallbackImage.Error())
})
}
func TestBuildFailsFallback(t *testing.T) {
t.Parallel()
t.Run("BadDockerfile", func(t *testing.T) {
t.Parallel()
// Ensures that a Git repository with a Dockerfile is cloned and built.
srv := createGitServer(t, gitServerOptions{
files: map[string]string{
"Dockerfile": "bad syntax",
},
})
_, err := runEnvbuilder(t, options{env: []string{
envbuilderEnv("GIT_URL", srv.URL),
envbuilderEnv("DOCKERFILE_PATH", "Dockerfile"),
}})
require.ErrorContains(t, err, envbuilder.ErrNoFallbackImage.Error())
require.ErrorContains(t, err, "dockerfile parse error")
})
t.Run("FailsBuild", func(t *testing.T) {
t.Parallel()
// Ensures that a Git repository with a Dockerfile is cloned and built.
srv := createGitServer(t, gitServerOptions{
files: map[string]string{
"Dockerfile": `FROM ` + testImageAlpine + `
RUN exit 1`,
},
})
_, err := runEnvbuilder(t, options{env: []string{
envbuilderEnv("GIT_URL", srv.URL),
envbuilderEnv("DOCKERFILE_PATH", "Dockerfile"),
}})
require.ErrorContains(t, err, envbuilder.ErrNoFallbackImage.Error())
})
t.Run("BadDevcontainer", func(t *testing.T) {
t.Parallel()
// Ensures that a Git repository with a Dockerfile is cloned and built.
srv := createGitServer(t, gitServerOptions{
files: map[string]string{
".devcontainer/devcontainer.json": "not json",
},
})
_, err := runEnvbuilder(t, options{env: []string{
envbuilderEnv("GIT_URL", srv.URL),
}})
require.ErrorContains(t, err, envbuilder.ErrNoFallbackImage.Error())
})
t.Run("NoImageOrDockerfile", func(t *testing.T) {
t.Parallel()
srv := createGitServer(t, gitServerOptions{
files: map[string]string{
".devcontainer/devcontainer.json": "{}",
},
})
ctr, err := runEnvbuilder(t, options{env: []string{
envbuilderEnv("GIT_URL", srv.URL),
envbuilderEnv("FALLBACK_IMAGE", testImageAlpine),
}})
require.NoError(t, err)
output := execContainer(t, ctr, "echo hello")
require.Equal(t, "hello", strings.TrimSpace(output))
})
}
func TestExitBuildOnFailure(t *testing.T) {
t.Parallel()
srv := createGitServer(t, gitServerOptions{
files: map[string]string{
"Dockerfile": "bad syntax",
},
})
_, err := runEnvbuilder(t, options{env: []string{
envbuilderEnv("GIT_URL", srv.URL),
envbuilderEnv("DOCKERFILE_PATH", "Dockerfile"),
envbuilderEnv("FALLBACK_IMAGE", testImageAlpine),
// Ensures that the fallback doesn't work when an image is specified.
envbuilderEnv("EXIT_ON_BUILD_FAILURE", "true"),
}})
require.ErrorContains(t, err, "parsing dockerfile")
}
func TestContainerEnv(t *testing.T) {
t.Parallel()
// Ensures that a Git repository with a devcontainer.json is cloned and built.
srv := createGitServer(t, gitServerOptions{
files: map[string]string{
".devcontainer/devcontainer.json": `{
"name": "Test",
"build": {
"dockerfile": "Dockerfile"
},
"containerEnv": {
"FROM_CONTAINER_ENV": "bar",
"PATH": "/bin"
},
"remoteEnv": {
"FROM_REMOTE_ENV": "baz",
"PATH": "/usr/local/bin:${containerEnv:PATH}:${containerEnv:GOPATH:/go/bin}:/opt",
"REMOTE_BAR": "${FROM_CONTAINER_ENV}"
}
}`,
".devcontainer/Dockerfile": "FROM " + testImageAlpine + "\nENV FROM_DOCKERFILE=foo",
},
})
ctr, err := runEnvbuilder(t, options{env: []string{
envbuilderEnv("GIT_URL", srv.URL),
envbuilderEnv("EXPORT_ENV_FILE", "/env"),
}})
require.NoError(t, err)
output := execContainer(t, ctr, "cat /env")
require.Contains(t, strings.TrimSpace(output),
`DEVCONTAINER=true
DEVCONTAINER_CONFIG=/workspaces/empty/.devcontainer/devcontainer.json
ENVBUILDER=true
FROM_CONTAINER_ENV=bar
FROM_DOCKERFILE=foo
FROM_REMOTE_ENV=baz
PATH=/usr/local/bin:/bin:/go/bin:/opt
REMOTE_BAR=bar`)
}
func TestUnsetOptionsEnv(t *testing.T) {
t.Parallel()
// Ensures that a Git repository with a devcontainer.json is cloned and built.
srv := createGitServer(t, gitServerOptions{
files: map[string]string{
".devcontainer/devcontainer.json": `{
"name": "Test",
"build": {
"dockerfile": "Dockerfile"
},
}`,
".devcontainer/Dockerfile": "FROM " + testImageAlpine + "\nENV FROM_DOCKERFILE=foo",
},
})
ctr, err := runEnvbuilder(t, options{env: []string{
envbuilderEnv("GIT_URL", srv.URL),
"GIT_URL", srv.URL,
envbuilderEnv("GIT_PASSWORD", "supersecret"),
"GIT_PASSWORD", "supersecret",
envbuilderEnv("INIT_SCRIPT", "env > /root/env.txt && sleep infinity"),
"INIT_SCRIPT", "env > /root/env.txt && sleep infinity",
}})
require.NoError(t, err)
output := execContainer(t, ctr, "cat /root/env.txt")
var os envbuilder.Options
for _, s := range strings.Split(strings.TrimSpace(output), "\n") {
for _, o := range os.CLI() {
if strings.HasPrefix(s, o.Env) {
assert.Fail(t, "environment variable should be stripped when running init script", s)
}
optWithoutPrefix := strings.TrimPrefix(o.Env, envbuilder.WithEnvPrefix(""))
if strings.HasPrefix(s, optWithoutPrefix) {
assert.Fail(t, "environment variable should be stripped when running init script", s)
}
}
}
}
func TestLifecycleScripts(t *testing.T) {
t.Parallel()
// Ensures that a Git repository with a devcontainer.json is cloned and built.
srv := createGitServer(t, gitServerOptions{
files: map[string]string{
".devcontainer/devcontainer.json": `{
"name": "Test",
"build": {
"dockerfile": "Dockerfile"
},
"onCreateCommand": "echo create > /tmp/out",
"updateContentCommand": ["sh", "-c", "echo update >> /tmp/out"],
"postCreateCommand": "(echo -n postCreate. ; id -un) >> /tmp/out",
"postStartCommand": {
"parallel1": "echo parallel1 > /tmp/parallel1",
"parallel2": ["sh", "-c", "echo parallel2 > /tmp/parallel2"]
}
}`,
".devcontainer/Dockerfile": "FROM " + testImageAlpine + "\nUSER nobody",
},
})
ctr, err := runEnvbuilder(t, options{env: []string{
envbuilderEnv("GIT_URL", srv.URL),
}})
require.NoError(t, err)
output := execContainer(t, ctr, "cat /tmp/out /tmp/parallel1 /tmp/parallel2")
require.Equal(t,
`create
update
postCreate.nobody
parallel1
parallel2`, strings.TrimSpace(output))
}
func TestPostStartScript(t *testing.T) {
t.Parallel()
// Ensures that a Git repository with a devcontainer.json is cloned and built.
srv := createGitServer(t, gitServerOptions{
files: map[string]string{
".devcontainer/devcontainer.json": `{
"name": "Test",
"build": {
"dockerfile": "Dockerfile"
},
"postStartCommand": {
"command1": "echo command1 output > /tmp/out1",
"command2": ["sh", "-c", "echo 'contains \"double quotes\"' > '/tmp/out2'"]
}
}`,
".devcontainer/init.sh": `#!/bin/sh
/tmp/post-start.sh
sleep infinity`,
".devcontainer/Dockerfile": `FROM ` + testImageAlpine + `
COPY init.sh /bin
RUN chmod +x /bin/init.sh
USER nobody`,
},
})
ctr, err := runEnvbuilder(t, options{env: []string{
envbuilderEnv("GIT_URL", srv.URL),
envbuilderEnv("POST_START_SCRIPT_PATH", "/tmp/post-start.sh"),
envbuilderEnv("INIT_COMMAND", "/bin/init.sh"),
}})
require.NoError(t, err)
output := execContainer(t, ctr, "cat /tmp/post-start.sh /tmp/out1 /tmp/out2")
require.Equal(t,
`#!/bin/sh
echo command1 output > /tmp/out1
'sh' '-c' 'echo '"'"'contains "double quotes"'"'"' > '"'"'/tmp/out2'"'"''
command1 output
contains "double quotes"`, strings.TrimSpace(output))
}
func TestPrivateRegistry(t *testing.T) {
t.Parallel()
t.Run("NoAuth", func(t *testing.T) {
t.Parallel()
// Even if something goes wrong with auth,
// the pull will fail as "scratch" is a reserved name.
image := setupPassthroughRegistry(t, "scratch", &setupPassthroughRegistryOptions{
Username: "user",
Password: "test",
})
// Ensures that a Git repository with a Dockerfile is cloned and built.
srv := createGitServer(t, gitServerOptions{
files: map[string]string{
"Dockerfile": "FROM " + image,
},
})
_, err := runEnvbuilder(t, options{env: []string{
envbuilderEnv("GIT_URL", srv.URL),
envbuilderEnv("DOCKERFILE_PATH", "Dockerfile"),
}})
require.ErrorContains(t, err, "Unauthorized")
})
t.Run("Auth", func(t *testing.T) {
t.Parallel()
image := setupPassthroughRegistry(t, "envbuilder-test-alpine:latest", &setupPassthroughRegistryOptions{
Username: "user",
Password: "test",
})
// Ensures that a Git repository with a Dockerfile is cloned and built.
srv := createGitServer(t, gitServerOptions{
files: map[string]string{
"Dockerfile": "FROM " + image,
},
})
config, err := json.Marshal(envbuilder.DockerConfig{
AuthConfigs: map[string]clitypes.AuthConfig{
image: {
Username: "user",
Password: "test",
},
},
})
require.NoError(t, err)
_, err = runEnvbuilder(t, options{env: []string{
envbuilderEnv("GIT_URL", srv.URL),
envbuilderEnv("DOCKERFILE_PATH", "Dockerfile"),
envbuilderEnv("DOCKER_CONFIG_BASE64", base64.StdEncoding.EncodeToString(config)),
}})
require.NoError(t, err)
})
t.Run("InvalidAuth", func(t *testing.T) {
t.Parallel()
// Even if something goes wrong with auth,
// the pull will fail as "scratch" is a reserved name.
image := setupPassthroughRegistry(t, "scratch", &setupPassthroughRegistryOptions{
Username: "user",
Password: "banana",
})
// Ensures that a Git repository with a Dockerfile is cloned and built.
srv := createGitServer(t, gitServerOptions{
files: map[string]string{
"Dockerfile": "FROM " + image,
},
})
config, err := json.Marshal(envbuilder.DockerConfig{
AuthConfigs: map[string]clitypes.AuthConfig{
image: {
Username: "user",
Password: "wrong",
},
},
})
require.NoError(t, err)
_, err = runEnvbuilder(t, options{env: []string{
envbuilderEnv("GIT_URL", srv.URL),
envbuilderEnv("DOCKERFILE_PATH", "Dockerfile"),
envbuilderEnv("DOCKER_CONFIG_BASE64", base64.StdEncoding.EncodeToString(config)),
}})
require.ErrorContains(t, err, "Unauthorized")
})
}
type setupPassthroughRegistryOptions struct {
Username string
Password string
Upstream string
}
func setupPassthroughRegistry(t *testing.T, image string, opts *setupPassthroughRegistryOptions) string {
t.Helper()
if opts.Upstream == "" {
// Default to local test registry
opts.Upstream = "http://localhost:5000"
}
upstreamURL, err := url.Parse(opts.Upstream)
require.NoError(t, err)
proxy := httputil.NewSingleHostReverseProxy(upstreamURL)
// The Docker registry uses short-lived JWTs to authenticate
// anonymously to pull images. To test our MITM auth, we need to
// generate a JWT for the proxy to use.
registry, err := name.NewRegistry(upstreamURL.Host)
require.NoError(t, err)
proxy.Transport, err = transport.NewWithContext(context.Background(), registry, authn.Anonymous, http.DefaultTransport, []string{})
require.NoError(t, err)
srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
r.Host = upstreamURL.Host
r.URL.Host = upstreamURL.Host
r.URL.Scheme = upstreamURL.Scheme
if opts != nil {
user, pass, ok := r.BasicAuth()
if !ok {
w.Header().Set("WWW-Authenticate", "Basic realm=\"Access to the staging site\", charset=\"UTF-8\"")
w.WriteHeader(http.StatusUnauthorized)
return
}
if user != opts.Username || pass != opts.Password {
w.WriteHeader(http.StatusUnauthorized)
return
}
}
proxy.ServeHTTP(w, r)
}))
return fmt.Sprintf("%s/%s", strings.TrimPrefix(srv.URL, "http://"), image)
}
func TestNoMethodFails(t *testing.T) {
_, err := runEnvbuilder(t, options{env: []string{}})
require.ErrorContains(t, err, envbuilder.ErrNoFallbackImage.Error())
}
func TestDockerfileBuildContext(t *testing.T) {
t.Parallel()
inclFile := "myfile"
dockerfile := fmt.Sprintf(`FROM %s
COPY %s .`, testImageAlpine, inclFile)
tests := []struct {
name string
files map[string]string
dockerfilePath string
buildContextPath string
expectedErr string
}{
{
// Dockerfile & build context are in the same dir, copying inclFile should work.
name: "same build context (default)",
files: map[string]string{
"Dockerfile": dockerfile,
inclFile: "...",
},
dockerfilePath: "Dockerfile",
buildContextPath: "", // use default
expectedErr: "", // expect no errors
},
{
// Dockerfile & build context are not in the same dir, build context is still the default; this should fail
// to copy inclFile since it is not in the same dir as the Dockerfile.
name: "different build context (default)",
files: map[string]string{
"a/Dockerfile": dockerfile,
"a/" + inclFile: "...",
},
dockerfilePath: "a/Dockerfile",
buildContextPath: "", // use default
expectedErr: inclFile + ": no such file or directory",
},
{
// Dockerfile & build context are not in the same dir, but inclFile is in the default build context dir;
// this should allow inclFile to be copied. This is probably not desirable though?
name: "different build context (default, different content roots)",
files: map[string]string{
"a/Dockerfile": dockerfile,
inclFile: "...",
},