forked from docker-archive/golem
/
golem.go
199 lines (162 loc) · 5.08 KB
/
golem.go
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package main
import (
"encoding/json"
"flag"
"io/ioutil"
"os"
"path/filepath"
"github.com/Sirupsen/logrus"
"github.com/docker/golem/buildutil"
"github.com/docker/golem/clientutil"
"github.com/docker/golem/runner"
"github.com/docker/golem/versionutil"
)
func main() {
name := filepath.Base(os.Args[0])
if name == "golem_runner" {
runnerMain()
return
}
var (
dockerBinary string
cacheDir string
buildCache string
)
co := clientutil.NewClientOptions()
cm := runner.NewConfigurationManager()
// Move Docker Specific options to separate type
flag.StringVar(&dockerBinary, "db", "", "Docker binary to test")
flag.StringVar(&cacheDir, "cache", "", "Cache directory")
flag.StringVar(&buildCache, "build-cache", "", "Build cache location, if outside of default cache directory")
// TODO: Add swarm flag and host option
flag.Parse()
// TODO: Allow quiet and verbose mode
logrus.SetLevel(logrus.DebugLevel)
if cacheDir == "" {
td, err := ioutil.TempDir("", "build-cache-")
if err != nil {
logrus.Fatalf("Error creating tempdir: %v", err)
}
cacheDir = td
defer os.RemoveAll(td)
}
if buildCache == "" {
buildCache = filepath.Join(cacheDir, "builds")
if err := os.MkdirAll(buildCache, 0755); err != nil {
logrus.Fatalf("Error creating build cache directory")
}
}
c := runner.CacheConfiguration{
ImageCache: runner.NewImageCache(filepath.Join(cacheDir, "images")),
BuildCache: buildutil.NewFSBuildCache(buildCache),
}
if dockerBinary != "" {
v, err := versionutil.BinaryVersion(dockerBinary)
if err != nil {
logrus.Fatalf("Error getting binary version of %s: %v", dockerBinary, err)
}
logrus.Debugf("Using local binary with version %s", v.String())
if err := c.BuildCache.PutVersion(v, dockerBinary); err != nil {
logrus.Fatalf("Error putting %s in cache as %s: %v", dockerBinary, v, err)
}
flag.Set("docker-version", v.String())
}
client, err := runner.NewDockerClient(co)
if err != nil {
logrus.Fatalf("Failed to create client: %v", err)
}
v, err := client.Version()
if err != nil {
logrus.Fatalf("Error getting version: %v", err)
}
serverVersion, err := versionutil.ParseVersion(v.Get("Version"))
if err != nil {
logrus.Fatalf("Unexpected version value: %s", v.Get("Version"))
}
// TODO: Support arbitrary load version instead of server version by
// starting up separate daemon for load
// TODO: Check cache here to ensure that load will not have issues
logrus.Debugf("Using docker daemon for image export, version %s", serverVersion)
r, err := cm.CreateRunner(serverVersion, c)
if err != nil {
logrus.Fatalf("Error creating runner: %v", err)
}
if err := r.Build(client); err != nil {
logrus.Fatalf("Error building test images: %v", err)
}
if err := r.Run(client); err != nil {
logrus.Fatalf("Error running tests: %v", err)
}
}
func runnerMain() {
var (
command string
dind bool
clean bool
)
// TODO: Parse runner options
flag.StringVar(&command, "command", "bats", "Command to run")
flag.BoolVar(&dind, "docker", false, "Whether to run docker")
flag.BoolVar(&clean, "clean", false, "Whether to ensure /var/lib/docker is empty")
flag.Parse()
// TODO: Allow quiet and verbose mode
logrus.SetLevel(logrus.DebugLevel)
logrus.Debugf("Runner!")
// Check if has compose file
composeFile := "/runner/docker-compose.yml"
var composeCapturer runner.LogCapturer
if _, err := os.Stat(composeFile); err == nil {
composeCapturer = newFileCapturer("compose")
defer composeCapturer.Close()
} else {
logrus.Debugf("No compose file found at %s", composeFile)
}
scriptCapturer := newFileCapturer("scripts")
defer scriptCapturer.Close()
loadCapturer := newFileCapturer("load")
defer loadCapturer.Close()
daemonCapturer := newFileCapturer("daemon")
defer daemonCapturer.Close()
testCapturer := runner.NewConsoleLogCapturer()
defer testCapturer.Close()
instanceF, err := os.Open("/instance.json")
if err != nil {
logrus.Fatalf("Error opening instance file: %v", err)
}
var instanceConfig runner.RunConfiguration
if err := json.NewDecoder(instanceF).Decode(&instanceConfig); err != nil {
logrus.Fatalf("Error decoding instance configuration: %v", err)
}
suiteConfig := runner.SuiteRunnerConfiguration{
DockerLoadLogCapturer: loadCapturer,
DockerLogCapturer: daemonCapturer,
RunConfiguration: instanceConfig,
SetupLogCapturer: scriptCapturer,
TestCapturer: testCapturer,
CleanDockerGraph: clean,
DockerInDocker: dind,
}
if composeCapturer != nil {
suiteConfig.ComposeCapturer = composeCapturer
suiteConfig.ComposeFile = composeFile
}
r := runner.NewSuiteRunner(suiteConfig)
if err := r.Setup(); err != nil {
logrus.Fatalf("Setup error: %v", err)
}
runErr := r.RunTests()
if err := r.TearDown(); err != nil {
logrus.Errorf("TearDown error: %v", err)
}
if runErr != nil {
logrus.Fatalf("Test errored: %v", runErr)
}
}
func newFileCapturer(name string) runner.LogCapturer {
basename := filepath.Join("/var/log/docker", name)
lc, err := runner.NewFileLogCapturer(basename)
if err != nil {
logrus.Fatalf("Error creating file capturer for %s: %v", basename, err)
}
return lc
}