Fix runner logic and add git clone step

config/config.go

@@ -8,6 +8,7 @@ import (
 type Config struct {
 	ServerUrl  string
 	Id         string
+	WorkingDir string
 	Secret     string
 	Tags       []string
 }
@@ -20,6 +21,7 @@ func GetConfig() (config.Config[Config], bool, error) {
 			ServerUrl:  "FILL IN",
 			Id:         "FILL IN",
 			Secret:     "FILL IN",
+			WorkingDir: "FILL IN",
 			Tags:       []string{},
 		},
 	}

main.go

@@ -4,6 +4,7 @@ import (
 	"context"
 	"fmt"
 	"git.ohea.xyz/cursorius/runner/config"
+	"git.ohea.xyz/cursorius/runner/runner"
 	"github.com/op/go-logging"
 	"nhooyr.io/websocket"
 	"nhooyr.io/websocket/wsjson"
@@ -19,11 +20,6 @@ type Register struct {
 	Tags   []string
 }
 
-type Job struct {
-	URL    *string
-	Folder *string
-}
-
 func main() {
 
 	var format = logging.MustStringFormatter(
@@ -60,26 +56,31 @@ func main() {
 	ctx, cancel := context.WithTimeout(context.Background(), time.Minute)
 	defer cancel()
 
-	c, _, err := websocket.Dial(ctx, connectString, nil)
+	conn, _, err := websocket.Dial(ctx, connectString, nil)
 	if err != nil {
 		log.Fatalf("Could not connect to server at \"%v\", %v", connectString, err)
 		os.Exit(1)
 	}
-	defer c.Close(websocket.StatusInternalError, "the sky is falling")
+	defer conn.Close(websocket.StatusInternalError, "the sky is falling")
 
-	err = wsjson.Write(ctx, c, registrationData)
+	err = wsjson.Write(ctx, conn, registrationData)
 	if err != nil {
 		log.Fatalf("Could not send registration information to server: %v", err)
 		os.Exit(1)
 	}
 
 	for {
-		var job Job
-		err = wsjson.Read(ctx, c, &job)
+		var job runner.Job
+		err = wsjson.Read(ctx, conn, &job)
 		if err != nil {
 			log.Fatalf("Could not receive from connection: %v", err)
 			continue
 		}
-		log.Infof("Received job from server: %v", *job.URL)
+		log.Infof("Received job from server: id: %v, URL: %v", job.Id, job.URL)
+
+		err = runner.RunJob(job, configData.Config.WorkingDir)
+		if err != nil {
+			log.Errorf("Could not run job: %v", err)
+		}
 	}
 }

runner/runner.go

@@ -4,30 +4,48 @@ import (
 	"bytes"
 	"context"
 	"fmt"
+	"os"
+	"os/exec"
+	"path/filepath"
+
 	"github.com/docker/docker/api/types"
 	"github.com/docker/docker/api/types/container"
+	"github.com/docker/docker/api/types/mount"
 	"github.com/docker/docker/client"
 	"github.com/docker/docker/pkg/stdcopy"
 	"github.com/op/go-logging"
-	"os"
 )
 
 var log = logging.MustGetLogger("cursorius-server")
 
-func runJob(job config.Job) {
-	if job.Folder != nil {
-		log.Debugf("Job configured with folder \"%v\"", *job.Folder)
+type Job struct {
+	Id  string
+	URL string
+}
+
+func RunJob(job Job, workingDir string) error {
+	jobFolder := filepath.Join(workingDir, job.Id)
+
+	log.Debugf("Job %v configured with URL \"%v\"", job.Id, job.URL)
+
+	log.Debugf("Job %v configured with folder \"%v\"", job.Id, jobFolder)
+
+	err := os.MkdirAll(jobFolder, 0755)
+	if err != nil {
+		return fmt.Errorf("could not create working directory for job %v: %v", job.Id, err)
+	}
+
+	log.Infof("Cloning source from URL %v", job.URL)
+	cloneCmd := exec.Command("git", "clone", job.URL, jobFolder)
+	output, err := cloneCmd.CombinedOutput()
+	if err != nil {
+		log.Debugf("%s", output)
+		return fmt.Errorf("could not clone source: %v", err)
+	}
 
 	cli, err := client.NewClientWithOpts(client.FromEnv)
 	if err != nil {
-			log.Errorf("Could not create docker clien: %va", err)
-			return
-		}
-
-		hostname, err := os.Hostname()
-		if err != nil {
-			log.Errorf("Could not get hostname: %v", err)
-			return
+		return fmt.Errorf("Could not create docker client: %v", err)
 	}
 
 	ctx := context.Background()
@@ -37,28 +55,33 @@ func runJob(job config.Job) {
 			Image: "cursorius:latest",
 			Cmd:   []string{"/launcher.sh"},
 			Tty:   false,
-				Env:   []string{fmt.Sprintf("CURSORIUS_SRC_DIR=%s", *job.Folder)},
+			Env:   []string{fmt.Sprintf("CURSORIUS_SRC_DIR=/job")},
 		},
+		// TODO: fix running the runner in docker (add VolumesFrom to HostConfig)
 		&container.HostConfig{
-				VolumesFrom: []string{hostname},
+			Mounts: []mount.Mount{{
+				Source:      jobFolder,
+				Target:      "/job",
+				ReadOnly:    false,
+				Consistency: mount.ConsistencyDefault,
+			}},
 		},
 		nil, nil, "",
 	)
 	if err != nil {
-			log.Errorf("Could not create container: %v", err)
-			return
+		return fmt.Errorf("could not create container: %v", err)
 	}
 
+	log.Info("Launching container")
+
 	if err := cli.ContainerStart(ctx, resp.ID, types.ContainerStartOptions{}); err != nil {
-			log.Errorf("Could not start container: %v", err)
-			return
+		return fmt.Errorf("could not start container: %v", err)
 	}
 	statusCh, errCh := cli.ContainerWait(ctx, resp.ID, container.WaitConditionNotRunning)
 	select {
 	case err := <-errCh:
 		if err != nil {
-				log.Errorf("Container returned error: %v", err)
-				return
+			return fmt.Errorf("container returned error: %v", err)
 		}
 	case retCode := <-statusCh:
 		log.Debugf("Container finished running with return code: %v", retCode)
@@ -66,8 +89,7 @@ func runJob(job config.Job) {
 
 	out, err := cli.ContainerLogs(ctx, resp.ID, types.ContainerLogsOptions{ShowStdout: true, ShowStderr: true})
 	if err != nil {
-			log.Errorf("Could not get container logs: %v", err)
-			return
+		return fmt.Errorf("could not get container logs: %v", err)
 	}
 
 	var stdOut bytes.Buffer
@@ -78,7 +100,5 @@ func runJob(job config.Job) {
 	log.Debugf("%s", stdOut.Bytes())
 	log.Debugf("%s", stdErr.Bytes())
 
-	} else if job.URL != nil {
-		log.Debugf("Job configured with URL \"%v\"", *job.URL)
-	}
+	return nil
 }