runservice: don't save executor task data in etcd

Reorganize ExecutorTask to better distinguish between the task Spec and
the Status.

Split the task Spec in a sub part called ExecutorTaskSpecData that contains
tasks data that don't have to be saved in etcd because it contains data that can
be very big and can be generated starting from the run and the runconfig.

internal/services/executor/executor.go

@@ -67,9 +67,9 @@ func (e *Executor) getAllPods(ctx context.Context, all bool) ([]driver.Pod, erro
 
 func stepUser(t *types.ExecutorTask) string {
 	// use the container specified user and override with task user if defined
-	user := t.Containers[0].User
+	user := t.Spec.Containers[0].User
-	if t.User != "" {
+	if t.Spec.User != "" {
-		user = t.User
+		user = t.Spec.User
 	}
 
 	return user
@@ -122,8 +122,8 @@ func (e *Executor) doRunStep(ctx context.Context, s *types.RunStep, t *types.Exe
 	// TODO(sgotti) this line is used only for old runconfig versions that don't
 	// set a task default shell in the runconfig
 	shell := defaultShell
-	if t.Shell != "" {
+	if t.Spec.Shell != "" {
-		shell = t.Shell
+		shell = t.Spec.Shell
 	}
 	if s.Shell != "" {
 		shell = s.Shell
@@ -143,14 +143,14 @@ func (e *Executor) doRunStep(ctx context.Context, s *types.RunStep, t *types.Exe
 	}
 
 	// override task working dir with runstep working dir if provided
-	workingDir := t.WorkingDir
+	workingDir := t.Spec.WorkingDir
 	if s.WorkingDir != "" {
 		workingDir = s.WorkingDir
 	}
 
 	// generate the environment using the task environment and then overriding with the runstep environment
 	environment := map[string]string{}
-	for envName, envValue := range t.Environment {
+	for envName, envValue := range t.Spec.Environment {
 		environment[envName] = envValue
 	}
 	for envName, envValue := range s.Environment {
@@ -208,15 +208,15 @@ func (e *Executor) doSaveToWorkspaceStep(ctx context.Context, s *types.SaveToWor
 	}
 	defer archivef.Close()
 
-	workingDir, err := e.expandDir(ctx, t, pod, logf, t.WorkingDir)
+	workingDir, err := e.expandDir(ctx, t, pod, logf, t.Spec.WorkingDir)
 	if err != nil {
-		_, _ = logf.WriteString(fmt.Sprintf("failed to expand working dir %q. Error: %s\n", t.WorkingDir, err))
+		_, _ = logf.WriteString(fmt.Sprintf("failed to expand working dir %q. Error: %s\n", t.Spec.WorkingDir, err))
 		return -1, err
 	}
 
 	execConfig := &driver.ExecConfig{
 		Cmd:         cmd,
-		Env:         t.Environment,
+		Env:         t.Spec.Environment,
 		WorkingDir:  workingDir,
 		User:        stepUser(t),
 		AttachStdin: true,
@@ -278,7 +278,7 @@ func (e *Executor) expandDir(ctx context.Context, t *types.ExecutorTask, pod dri
 
 	execConfig := &driver.ExecConfig{
 		Cmd:         cmd,
-		Env:         t.Environment,
+		Env:         t.Spec.Environment,
 		User:        stepUser(t),
 		AttachStdin: true,
 		Stdout:      stdout,
@@ -307,7 +307,7 @@ func (e *Executor) mkdir(ctx context.Context, t *types.ExecutorTask, pod driver.
 
 	execConfig := &driver.ExecConfig{
 		Cmd:         cmd,
-		Env:         t.Environment,
+		Env:         t.Spec.Environment,
 		User:        stepUser(t),
 		AttachStdin: true,
 		Stdout:      logf,
@@ -336,15 +336,15 @@ func (e *Executor) template(ctx context.Context, t *types.ExecutorTask, pod driv
 	// limit the template answer to max 1MiB
 	stdout := util.NewLimitedBuffer(1024 * 1024)
 
-	workingDir, err := e.expandDir(ctx, t, pod, logf, t.WorkingDir)
+	workingDir, err := e.expandDir(ctx, t, pod, logf, t.Spec.WorkingDir)
 	if err != nil {
-		_, _ = io.WriteString(logf, fmt.Sprintf("failed to expand working dir %q. Error: %s\n", t.WorkingDir, err))
+		_, _ = io.WriteString(logf, fmt.Sprintf("failed to expand working dir %q. Error: %s\n", t.Spec.WorkingDir, err))
 		return "", err
 	}
 
 	execConfig := &driver.ExecConfig{
 		Cmd:         cmd,
-		Env:         t.Environment,
+		Env:         t.Spec.Environment,
 		WorkingDir:  workingDir,
 		User:        stepUser(t),
 		AttachStdin: true,
@@ -384,15 +384,15 @@ func (e *Executor) unarchive(ctx context.Context, t *types.ExecutorTask, source
 	}
 	cmd := append([]string{toolboxContainerPath, "unarchive"}, args...)
 
-	workingDir, err := e.expandDir(ctx, t, pod, logf, t.WorkingDir)
+	workingDir, err := e.expandDir(ctx, t, pod, logf, t.Spec.WorkingDir)
 	if err != nil {
-		_, _ = io.WriteString(logf, fmt.Sprintf("failed to expand working dir %q. Error: %s\n", t.WorkingDir, err))
+		_, _ = io.WriteString(logf, fmt.Sprintf("failed to expand working dir %q. Error: %s\n", t.Spec.WorkingDir, err))
 		return err
 	}
 
 	execConfig := &driver.ExecConfig{
 		Cmd:         cmd,
-		Env:         t.Environment,
+		Env:         t.Spec.Environment,
 		WorkingDir:  workingDir,
 		User:        stepUser(t),
 		AttachStdin: true,
@@ -432,7 +432,7 @@ func (e *Executor) doRestoreWorkspaceStep(ctx context.Context, s *types.RestoreW
 	}
 	defer logf.Close()
 
-	for _, op := range t.WorkspaceOperations {
+	for _, op := range t.Spec.WorkspaceOperations {
 		log.Debugf("unarchiving workspace for taskID: %s, step: %d", level, op.TaskID, op.Step)
 		resp, err := e.runserviceClient.GetArchive(ctx, op.TaskID, op.Step)
 		if err != nil {
@@ -473,7 +473,7 @@ func (e *Executor) doSaveCacheStep(ctx context.Context, s *types.SaveCacheStep,
 	fmt.Fprintf(logf, "cache key %q\n", userKey)
 
 	// append cache prefix
-	key := t.CachePrefix + "-" + userKey
+	key := t.Spec.CachePrefix + "-" + userKey
 
 	// check that the cache key doesn't already exists
 	resp, err := e.runserviceClient.CheckCache(ctx, key, false)
@@ -503,15 +503,15 @@ func (e *Executor) doSaveCacheStep(ctx context.Context, s *types.SaveCacheStep,
 	}
 	defer archivef.Close()
 
-	workingDir, err := e.expandDir(ctx, t, pod, logf, t.WorkingDir)
+	workingDir, err := e.expandDir(ctx, t, pod, logf, t.Spec.WorkingDir)
 	if err != nil {
-		_, _ = io.WriteString(logf, fmt.Sprintf("failed to expand working dir %q. Error: %s\n", t.WorkingDir, err))
+		_, _ = io.WriteString(logf, fmt.Sprintf("failed to expand working dir %q. Error: %s\n", t.Spec.WorkingDir, err))
 		return -1, err
 	}
 
 	execConfig := &driver.ExecConfig{
 		Cmd:         cmd,
-		Env:         t.Environment,
+		Env:         t.Spec.Environment,
 		WorkingDir:  workingDir,
 		User:        stepUser(t),
 		AttachStdin: true,
@@ -605,7 +605,7 @@ func (e *Executor) doRestoreCacheStep(ctx context.Context, s *types.RestoreCache
 		fmt.Fprintf(logf, "cache key %q\n", userKey)
 
 		// append cache prefix
-		key := t.CachePrefix + "-" + userKey
+		key := t.Spec.CachePrefix + "-" + userKey
 
 		resp, err := e.runserviceClient.GetCache(ctx, key, true)
 		if err != nil {
@@ -855,7 +855,7 @@ func (e *Executor) setupTask(ctx context.Context, rt *runningTask) error {
 
 	// error out if privileged containers are required but not allowed
 	requiresPrivilegedContainers := false
-	for _, c := range et.Containers {
+	for _, c := range et.Spec.Containers {
 		if c.Privileged {
 			requiresPrivilegedContainers = true
 			break
@@ -868,7 +868,7 @@ func (e *Executor) setupTask(ctx context.Context, rt *runningTask) error {
 
 	log.Debugf("starting pod")
 
-	dockerConfig, err := registry.GenDockerConfig(et.DockerRegistriesAuth, []string{et.Containers[0].Image})
+	dockerConfig, err := registry.GenDockerConfig(et.Spec.DockerRegistriesAuth, []string{et.Spec.Containers[0].Image})
 	if err != nil {
 		return err
 	}
@@ -878,12 +878,12 @@ func (e *Executor) setupTask(ctx context.Context, rt *runningTask) error {
 		// tasks failed to start and don't clash with existing pods)
 		ID:            uuid.NewV4().String(),
 		TaskID:        et.ID,
-		Arch:          et.Arch,
+		Arch:          et.Spec.Arch,
 		InitVolumeDir: toolboxContainerDir,
 		DockerConfig:  dockerConfig,
-		Containers:    make([]*driver.ContainerConfig, len(et.Containers)),
+		Containers:    make([]*driver.ContainerConfig, len(et.Spec.Containers)),
 	}
-	for i, c := range et.Containers {
+	for i, c := range et.Spec.Containers {
 		var cmd []string
 		if i == 0 {
 			cmd = []string{toolboxContainerPath, "sleeper"}
@@ -909,10 +909,10 @@ func (e *Executor) setupTask(ctx context.Context, rt *runningTask) error {
 	}
 	_, _ = outf.WriteString("Pod started.\n")
 
-	if et.WorkingDir != "" {
+	if et.Spec.WorkingDir != "" {
-		_, _ = outf.WriteString(fmt.Sprintf("Creating working dir %q.\n", et.WorkingDir))
+		_, _ = outf.WriteString(fmt.Sprintf("Creating working dir %q.\n", et.Spec.WorkingDir))
-		if err := e.mkdir(ctx, et, pod, outf, et.WorkingDir); err != nil {
+		if err := e.mkdir(ctx, et, pod, outf, et.Spec.WorkingDir); err != nil {
-			_, _ = outf.WriteString(fmt.Sprintf("Failed to create working dir %q. Error: %s\n", et.WorkingDir, err))
+			_, _ = outf.WriteString(fmt.Sprintf("Failed to create working dir %q. Error: %s\n", et.Spec.WorkingDir, err))
 			return err
 		}
 	}
@@ -922,7 +922,7 @@ func (e *Executor) setupTask(ctx context.Context, rt *runningTask) error {
 }
 
 func (e *Executor) executeTaskSteps(ctx context.Context, rt *runningTask, pod driver.Pod) (int, error) {
-	for i, step := range rt.et.Steps {
+	for i, step := range rt.et.Spec.Steps {
 		rt.Lock()
 		rt.et.Status.Steps[i].Phase = types.ExecutorTaskPhaseRunning
 		rt.et.Status.Steps[i].StartTime = util.TimeP(time.Now())
@@ -975,7 +975,7 @@ func (e *Executor) executeTaskSteps(ctx context.Context, rt *runningTask, pod dr
 		rt.et.Status.Steps[i].Phase = types.ExecutorTaskPhaseSuccess
 
 		if err != nil {
-			if rt.et.Stop {
+			if rt.et.Spec.Stop {
 				rt.et.Status.Steps[i].Phase = types.ExecutorTaskPhaseStopped
 			} else {
 				rt.et.Status.Steps[i].Phase = types.ExecutorTaskPhaseFailed
@@ -1154,11 +1154,11 @@ func (e *Executor) tasksUpdater(ctx context.Context) error {
 
 func (e *Executor) taskUpdater(ctx context.Context, et *types.ExecutorTask) {
 	log.Debugf("et: %v", util.Dump(et))
-	if et.Status.ExecutorID != e.id {
+	if et.Spec.ExecutorID != e.id {
 		return
 	}
 
-	if et.Stop {
+	if et.Spec.Stop {
 		e.stopTask(ctx, et)
 	}
 

internal/services/runservice/action/action.go

@@ -585,3 +585,58 @@ func (h *ActionHandler) getRunCounter(ctx context.Context, group string) (uint64
 
 	return c, cgt, nil
 }
+
+func (h *ActionHandler) GetExecutorTask(ctx context.Context, etID string) (*types.ExecutorTask, error) {
+	et, err := store.GetExecutorTask(ctx, h.e, etID)
+	if err != nil && err != etcd.ErrKeyNotFound {
+		return nil, err
+	}
+	if et == nil {
+		return nil, util.NewErrNotFound(errors.Errorf("executor task %q not found", etID))
+	}
+
+	r, _, err := store.GetRun(ctx, h.e, et.Spec.RunID)
+	if err != nil {
+		return nil, errors.Errorf("cannot get run %q: %w", et.Spec.RunID, err)
+	}
+	rc, err := store.OSTGetRunConfig(h.dm, r.ID)
+	if err != nil {
+		return nil, errors.Errorf("cannot get run config %q: %w", r.ID, err)
+	}
+	rt, ok := r.Tasks[et.ID]
+	if !ok {
+		return nil, errors.Errorf("no such run task with id %s for run %s", et.ID, r.ID)
+	}
+
+	// generate ExecutorTaskSpecData
+	et.Spec.ExecutorTaskSpecData = common.GenExecutorTaskSpecData(r, rt, rc)
+
+	return et, nil
+}
+
+func (h *ActionHandler) GetExecutorTasks(ctx context.Context, executorID string) ([]*types.ExecutorTask, error) {
+	ets, err := store.GetExecutorTasks(ctx, h.e, executorID)
+	if err != nil && err != etcd.ErrKeyNotFound {
+		return nil, err
+	}
+
+	for _, et := range ets {
+		r, _, err := store.GetRun(ctx, h.e, et.Spec.RunID)
+		if err != nil {
+			return nil, errors.Errorf("cannot get run %q: %w", et.Spec.RunID, err)
+		}
+		rc, err := store.OSTGetRunConfig(h.dm, r.ID)
+		if err != nil {
+			return nil, errors.Errorf("cannot get run config %q: %w", r.ID, err)
+		}
+		rt, ok := r.Tasks[et.ID]
+		if !ok {
+			return nil, errors.Errorf("no such run task with id %s for run %s", et.ID, r.ID)
+		}
+
+		// generate ExecutorTaskSpecData
+		et.Spec.ExecutorTaskSpecData = common.GenExecutorTaskSpecData(r, rt, rc)
+	}
+
+	return ets, nil
+}

internal/services/runservice/api/api.go

@@ -244,12 +244,12 @@ func (h *LogsHandler) readTaskLogs(ctx context.Context, runID, taskID string, se
 	if err != nil {
 		return err, true
 	}
-	executor, err := store.GetExecutor(ctx, h.e, et.Status.ExecutorID)
+	executor, err := store.GetExecutor(ctx, h.e, et.Spec.ExecutorID)
 	if err != nil && err != etcd.ErrKeyNotFound {
 		return err, true
 	}
 	if executor == nil {
-		return common.NewErrNotExist(errors.Errorf("executor with id %q doesn't exist", et.Status.ExecutorID)), true
+		return common.NewErrNotExist(errors.Errorf("executor with id %q doesn't exist", et.Spec.ExecutorID)), true
 	}
 
 	var url string

internal/services/runservice/api/executor.go

@@ -29,7 +29,9 @@ import (
 	"agola.io/agola/internal/services/runservice/action"
 	"agola.io/agola/internal/services/runservice/common"
 	"agola.io/agola/internal/services/runservice/store"
+	"agola.io/agola/internal/util"
 	"agola.io/agola/services/runservice/types"
+	errors "golang.org/x/xerrors"
 
 	"github.com/gorilla/mux"
 	"go.uber.org/zap"
@@ -137,11 +139,12 @@ func (h *ExecutorTaskStatusHandler) ServeHTTP(w http.ResponseWriter, r *http.Req
 }
 
 type ExecutorTaskHandler struct {
-	e *etcd.Store
+	log *zap.SugaredLogger
+	ah  *action.ActionHandler
 }
 
-func NewExecutorTaskHandler(e *etcd.Store) *ExecutorTaskHandler {
+func NewExecutorTaskHandler(logger *zap.Logger, ah *action.ActionHandler) *ExecutorTaskHandler {
-	return &ExecutorTaskHandler{e: e}
+	return &ExecutorTaskHandler{log: logger.Sugar(), ah: ah}
 }
 
 func (h *ExecutorTaskHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
@@ -151,32 +154,28 @@ func (h *ExecutorTaskHandler) ServeHTTP(w http.ResponseWriter, r *http.Request)
 	// TODO(sgotti) Check authorized call from executors
 	etID := vars["taskid"]
 	if etID == "" {
-		http.Error(w, "", http.StatusBadRequest)
+		httpError(w, util.NewErrBadRequest(errors.Errorf("taskid is empty")))
 		return
 	}
 
-	et, err := store.GetExecutorTask(ctx, h.e, etID)
+	et, err := h.ah.GetExecutorTask(ctx, etID)
-	if err != nil && err != etcd.ErrKeyNotFound {
+	if httpError(w, err) {
-		http.Error(w, "", http.StatusInternalServerError)
+		h.log.Errorf("err: %+v", err)
-		return
-	}
-	if et == nil {
-		http.Error(w, "", http.StatusNotFound)
 		return
 	}
 
-	if err := json.NewEncoder(w).Encode(et); err != nil {
+	if err := httpResponse(w, http.StatusOK, et); err != nil {
-		http.Error(w, "", http.StatusInternalServerError)
+		h.log.Errorf("err: %+v", err)
-		return
 	}
 }
 
 type ExecutorTasksHandler struct {
-	e *etcd.Store
+	log *zap.SugaredLogger
+	ah  *action.ActionHandler
 }
 
-func NewExecutorTasksHandler(e *etcd.Store) *ExecutorTasksHandler {
+func NewExecutorTasksHandler(logger *zap.Logger, ah *action.ActionHandler) *ExecutorTasksHandler {
-	return &ExecutorTasksHandler{e: e}
+	return &ExecutorTasksHandler{log: logger.Sugar(), ah: ah}
 }
 
 func (h *ExecutorTasksHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
@@ -190,7 +189,7 @@ func (h *ExecutorTasksHandler) ServeHTTP(w http.ResponseWriter, r *http.Request)
 		return
 	}
 
-	ets, err := store.GetExecutorTasks(ctx, h.e, executorID)
+	ets, err := h.ah.GetExecutorTasks(ctx, executorID)
 	if err != nil {
 		http.Error(w, "", http.StatusInternalServerError)
 		return

internal/services/runservice/common/common.go

@@ -15,7 +15,13 @@
 package common
 
 import (
+	"fmt"
 	"path"
+	"sort"
+
+	"agola.io/agola/internal/runconfig"
+	"agola.io/agola/internal/util"
+	"agola.io/agola/services/runservice/types"
 )
 
 const (
@@ -81,3 +87,154 @@ const (
 	DataTypeRunConfig  DataType = "runconfig"
 	DataTypeRunCounter DataType = "runcounter"
 )
+
+func OSTSubGroupsAndGroupTypes(group string) []string {
+	h := util.PathHierarchy(group)
+	if len(h)%2 != 1 {
+		panic(fmt.Errorf("wrong group path %q", group))
+	}
+
+	return h
+}
+
+func OSTRootGroup(group string) string {
+	pl := util.PathList(group)
+	if len(pl) < 2 {
+		panic(fmt.Errorf("cannot determine root group name, wrong group path %q", group))
+	}
+
+	return pl[1]
+}
+
+func OSTSubGroups(group string) []string {
+	h := util.PathHierarchy(group)
+	if len(h)%2 != 1 {
+		panic(fmt.Errorf("wrong group path %q", group))
+	}
+
+	// remove group types
+	sg := []string{}
+	for i, g := range h {
+		if i%2 == 0 {
+			sg = append(sg, g)
+		}
+	}
+
+	return sg
+}
+
+func OSTSubGroupTypes(group string) []string {
+	h := util.PathHierarchy(group)
+	if len(h)%2 != 1 {
+		panic(fmt.Errorf("wrong group path %q", group))
+	}
+
+	// remove group names
+	sg := []string{}
+	for i, g := range h {
+		if i%2 == 1 {
+			sg = append(sg, g)
+		}
+	}
+
+	return sg
+}
+
+type parentsByLevelName []*types.RunConfigTask
+
+func (p parentsByLevelName) Len() int { return len(p) }
+func (p parentsByLevelName) Less(i, j int) bool {
+	if p[i].Level != p[j].Level {
+		return p[i].Level < p[j].Level
+	}
+	return p[i].Name < p[j].Name
+}
+func (p parentsByLevelName) Swap(i, j int) { p[i], p[j] = p[j], p[i] }
+
+func mergeEnv(dest, src map[string]string) {
+	for k, v := range src {
+		dest[k] = v
+	}
+}
+
+func GenExecutorTaskSpecData(r *types.Run, rt *types.RunTask, rc *types.RunConfig) *types.ExecutorTaskSpecData {
+	rct := rc.Tasks[rt.ID]
+
+	environment := map[string]string{}
+	if rct.Environment != nil {
+		environment = rct.Environment
+	}
+	mergeEnv(environment, rc.StaticEnvironment)
+	// run config Environment variables ovverride every other environment variable
+	mergeEnv(environment, rc.Environment)
+
+	cachePrefix := OSTRootGroup(r.Group)
+	if rc.CacheGroup != "" {
+		cachePrefix = rc.CacheGroup
+	}
+
+	data := &types.ExecutorTaskSpecData{
+		// The executorTask ID must be the same as the runTask ID so we can detect if
+		// there's already an executorTask scheduled for that run task and we can get
+		// at most once task execution
+		TaskName:             rct.Name,
+		Arch:                 rct.Runtime.Arch,
+		Containers:           rct.Runtime.Containers,
+		Environment:          environment,
+		WorkingDir:           rct.WorkingDir,
+		Shell:                rct.Shell,
+		User:                 rct.User,
+		Steps:                rct.Steps,
+		CachePrefix:          cachePrefix,
+		DockerRegistriesAuth: rct.DockerRegistriesAuth,
+	}
+
+	// calculate workspace operations
+	// TODO(sgotti) right now we don't support duplicated files. So it's not currently possibile to overwrite a file in a upper layer.
+	// this simplifies the workspaces extractions since they could be extracted in any order. We make them ordered just for reproducibility
+	wsops := []types.WorkspaceOperation{}
+	rctAllParents := runconfig.GetAllParents(rc.Tasks, rct)
+
+	// sort parents by level and name just for reproducibility
+	sort.Sort(parentsByLevelName(rctAllParents))
+
+	for _, rctParent := range rctAllParents {
+		for _, archiveStep := range r.Tasks[rctParent.ID].WorkspaceArchives {
+			wsop := types.WorkspaceOperation{TaskID: rctParent.ID, Step: archiveStep}
+			wsops = append(wsops, wsop)
+		}
+	}
+
+	data.WorkspaceOperations = wsops
+
+	return data
+}
+
+func GenExecutorTask(r *types.Run, rt *types.RunTask, rc *types.RunConfig, executor *types.Executor) *types.ExecutorTask {
+	rct := rc.Tasks[rt.ID]
+
+	et := &types.ExecutorTask{
+		// The executorTask ID must be the same as the runTask ID so we can detect if
+		// there's already an executorTask scheduled for that run task and we can get
+		// at most once task execution
+		ID: rt.ID,
+		Spec: types.ExecutorTaskSpec{
+			ExecutorID: executor.ID,
+			RunID:      r.ID,
+			// ExecutorTaskSpecData is not saved in etcd to avoid exceeding the max etcd value
+			// size but is generated everytime the executor task is sent to the executor
+		},
+		Status: types.ExecutorTaskStatus{
+			Phase: types.ExecutorTaskPhaseNotStarted,
+			Steps: make([]*types.ExecutorTaskStepStatus, len(rct.Steps)),
+		},
+	}
+
+	for i := range et.Status.Steps {
+		et.Status.Steps[i] = &types.ExecutorTaskStepStatus{
+			Phase: types.ExecutorTaskPhaseNotStarted,
+		}
+	}
+
+	return et
+}

internal/services/runservice/runservice.go

@@ -211,8 +211,8 @@ func (s *Runservice) setupDefaultRouter(etCh chan *types.ExecutorTask) http.Hand
 	// executor dedicated api, only calls from executor should happen on these handlers
 	executorStatusHandler := api.NewExecutorStatusHandler(logger, s.e, s.ah)
 	executorTaskStatusHandler := api.NewExecutorTaskStatusHandler(s.e, etCh)
-	executorTaskHandler := api.NewExecutorTaskHandler(s.e)
+	executorTaskHandler := api.NewExecutorTaskHandler(logger, s.ah)
-	executorTasksHandler := api.NewExecutorTasksHandler(s.e)
+	executorTasksHandler := api.NewExecutorTasksHandler(logger, s.ah)
 	archivesHandler := api.NewArchivesHandler(logger, s.ost)
 	cacheHandler := api.NewCacheHandler(logger, s.ost)
 	cacheCreateHandler := api.NewCacheCreateHandler(logger, s.ost)

internal/services/runservice/scheduler.go

@@ -20,7 +20,6 @@ import (
 	"encoding/json"
 	"fmt"
 	"net/http"
-	"sort"
 	"strconv"
 	"time"
 
@@ -52,12 +51,6 @@ var level = zap.NewAtomicLevelAt(zapcore.InfoLevel)
 var logger = slog.New(level)
 var log = logger.Sugar()
 
-func mergeEnv(dest, src map[string]string) {
-	for k, v := range src {
-		dest[k] = v
-	}
-}
-
 func (s *Runservice) runActiveExecutorTasks(ctx context.Context, runID string) ([]*types.ExecutorTask, error) {
 	// the real source of active tasks is the number of executor tasks in etcd
 	// we can't rely on RunTask.Status since it's only updated when receiveing
@@ -255,7 +248,7 @@ func (s *Runservice) submitRunTasks(ctx context.Context, r *types.Run, rc *types
 			return nil
 		}
 
-		et := s.genExecutorTask(ctx, r, rt, rc, executor)
+		et := common.GenExecutorTask(r, rt, rc, executor)
 		log.Debugf("et: %s", util.Dump(et))
 
 		// check that the executorTask wasn't already scheduled
@@ -333,107 +326,48 @@ func chooseExecutor(executors []*types.Executor, rct *types.RunConfigTask) *type
 	return nil
 }
 
-type parentsByLevelName []*types.RunConfigTask
-
-func (p parentsByLevelName) Len() int { return len(p) }
-func (p parentsByLevelName) Less(i, j int) bool {
-	if p[i].Level != p[j].Level {
-		return p[i].Level < p[j].Level
-	}
-	return p[i].Name < p[j].Name
-}
-func (p parentsByLevelName) Swap(i, j int) { p[i], p[j] = p[j], p[i] }
-
-func (s *Runservice) genExecutorTask(ctx context.Context, r *types.Run, rt *types.RunTask, rc *types.RunConfig, executor *types.Executor) *types.ExecutorTask {
-	rct := rc.Tasks[rt.ID]
-
-	environment := map[string]string{}
-	if rct.Environment != nil {
-		environment = rct.Environment
-	}
-	mergeEnv(environment, rc.StaticEnvironment)
-	// run config Environment variables ovverride every other environment variable
-	mergeEnv(environment, rc.Environment)
-
-	cachePrefix := store.OSTRootGroup(r.Group)
-	if rc.CacheGroup != "" {
-		cachePrefix = rc.CacheGroup
-	}
-
-	et := &types.ExecutorTask{
-		// The executorTask ID must be the same as the runTask ID so we can detect if
-		// there's already an executorTask scheduled for that run task and we can get
-		// at most once task execution
-		ID:          rt.ID,
-		RunID:       r.ID,
-		TaskName:    rct.Name,
-		Arch:        rct.Runtime.Arch,
-		Containers:  rct.Runtime.Containers,
-		Environment: environment,
-		WorkingDir:  rct.WorkingDir,
-		Shell:       rct.Shell,
-		User:        rct.User,
-		Steps:       rct.Steps,
-		CachePrefix: cachePrefix,
-		Status: types.ExecutorTaskStatus{
-			Phase:      types.ExecutorTaskPhaseNotStarted,
-			Steps:      make([]*types.ExecutorTaskStepStatus, len(rct.Steps)),
-			ExecutorID: executor.ID,
-		},
-		DockerRegistriesAuth: rct.DockerRegistriesAuth,
-	}
-
-	for i := range et.Status.Steps {
-		et.Status.Steps[i] = &types.ExecutorTaskStepStatus{
-			Phase: types.ExecutorTaskPhaseNotStarted,
-		}
-	}
-
-	// calculate workspace operations
-	// TODO(sgotti) right now we don't support duplicated files. So it's not currently possibile to overwrite a file in a upper layer.
-	// this simplifies the workspaces extractions since they could be extracted in any order. We make them ordered just for reproducibility
-	wsops := []types.WorkspaceOperation{}
-	rctAllParents := runconfig.GetAllParents(rc.Tasks, rct)
-
-	// sort parents by level and name just for reproducibility
-	sort.Sort(parentsByLevelName(rctAllParents))
-
-	for _, rctParent := range rctAllParents {
-		log.Debugf("rctParent: %s", util.Dump(rctParent))
-		for _, archiveStep := range r.Tasks[rctParent.ID].WorkspaceArchives {
-			wsop := types.WorkspaceOperation{TaskID: rctParent.ID, Step: archiveStep}
-			wsops = append(wsops, wsop)
-		}
-	}
-
-	et.WorkspaceOperations = wsops
-
-	return et
-}
-
 // sendExecutorTask sends executor task to executor, if this fails the executor
 // will periodically fetch the executortask anyway
 func (s *Runservice) sendExecutorTask(ctx context.Context, et *types.ExecutorTask) error {
-	executor, err := store.GetExecutor(ctx, s.e, et.Status.ExecutorID)
+	executor, err := store.GetExecutor(ctx, s.e, et.Spec.ExecutorID)
 	if err != nil && err != etcd.ErrKeyNotFound {
 		return err
 	}
 	if executor == nil {
-		log.Warnf("executor with id %q doesn't exist", et.Status.ExecutorID)
+		log.Warnf("executor with id %q doesn't exist", et.Spec.ExecutorID)
 		return nil
 	}
 
+	r, _, err := store.GetRun(ctx, s.e, et.Spec.RunID)
+	if err != nil {
+		return err
+	}
+	rc, err := store.OSTGetRunConfig(s.dm, r.ID)
+	if err != nil {
+		return errors.Errorf("cannot get run config %q: %w", r.ID, err)
+	}
+	rt, ok := r.Tasks[et.ID]
+	if !ok {
+		return errors.Errorf("no such run task with id %s for run %s", et.ID, r.ID)
+	}
+
+	// take a copy to not change the input executorTask
+	et = et.DeepCopy()
+
+	// generate ExecutorTaskSpecData
+	et.Spec.ExecutorTaskSpecData = common.GenExecutorTaskSpecData(r, rt, rc)
+
 	etj, err := json.Marshal(et)
 	if err != nil {
 		return err
 	}
 
-	r, err := http.Post(executor.ListenURL+"/api/v1alpha/executor", "", bytes.NewReader(etj))
+	req, err := http.Post(executor.ListenURL+"/api/v1alpha/executor", "", bytes.NewReader(etj))
 	if err != nil {
 		return err
 	}
-	if r.StatusCode != http.StatusOK {
+	if req.StatusCode != http.StatusOK {
-		return errors.Errorf("received http status: %d", r.StatusCode)
+		return errors.Errorf("received http status: %d", req.StatusCode)
 	}
 
 	return nil
@@ -549,7 +483,7 @@ func (s *Runservice) scheduleRun(ctx context.Context, r *types.Run, rc *types.Ru
 	// if the run is set to stop, stop all tasks
 	if r.Stop {
 		for _, et := range activeExecutorTasks {
-			et.Stop = true
+			et.Spec.Stop = true
 			if _, err := store.AtomicPutExecutorTask(ctx, s.e, et); err != nil {
 				return err
 			}
@@ -664,7 +598,7 @@ func advanceRun(ctx context.Context, r *types.Run, rc *types.RunConfig, activeEx
 }
 
 func (s *Runservice) handleExecutorTaskUpdate(ctx context.Context, et *types.ExecutorTask) error {
-	r, _, err := store.GetRun(ctx, s.e, et.RunID)
+	r, _, err := store.GetRun(ctx, s.e, et.Spec.RunID)
 	if err != nil {
 		return err
 	}
@@ -819,7 +753,7 @@ func (s *Runservice) executorTasksCleaner(ctx context.Context) error {
 func (s *Runservice) executorTaskCleaner(ctx context.Context, et *types.ExecutorTask) error {
 	log.Debugf("et: %s", util.Dump(et))
 	if et.Status.Phase.IsFinished() {
-		r, _, err := store.GetRun(ctx, s.e, et.RunID)
+		r, _, err := store.GetRun(ctx, s.e, et.Spec.RunID)
 		if err != nil {
 			if err == etcd.ErrKeyNotFound {
 				// run doesn't exists, remove executor task
@@ -835,8 +769,8 @@ func (s *Runservice) executorTaskCleaner(ctx context.Context, et *types.Executor
 
 		if r.Phase.IsFinished() {
 			// if the run is finished mark the executor tasks to stop
-			if !et.Stop {
+			if !et.Spec.Stop {
-				et.Stop = true
+				et.Spec.Stop = true
 				if _, err := store.AtomicPutExecutorTask(ctx, s.e, et); err != nil {
 					return err
 				}
@@ -850,13 +784,13 @@ func (s *Runservice) executorTaskCleaner(ctx context.Context, et *types.Executor
 
 	if !et.Status.Phase.IsFinished() {
 		// if the executor doesn't exists anymore mark the not finished executor tasks as failed
-		executor, err := store.GetExecutor(ctx, s.e, et.Status.ExecutorID)
+		executor, err := store.GetExecutor(ctx, s.e, et.Spec.ExecutorID)
 		if err != nil && err != etcd.ErrKeyNotFound {
 			return err
 		}
 		if executor == nil {
-			log.Warnf("executor with id %q doesn't exist. marking executor task %q as failed", et.Status.ExecutorID, et.ID)
+			log.Warnf("executor with id %q doesn't exist. marking executor task %q as failed", et.Spec.ExecutorID, et.ID)
-			et.FailError = "executor deleted"
+			et.Status.FailError = "executor deleted"
 			et.Status.Phase = types.ExecutorTaskPhaseFailed
 			et.Status.EndTime = util.TimeP(time.Now())
 			for _, s := range et.Status.Steps {
@@ -947,12 +881,12 @@ func (s *Runservice) fetchLog(ctx context.Context, rt *types.RunTask, setup bool
 		}
 		return nil
 	}
-	executor, err := store.GetExecutor(ctx, s.e, et.Status.ExecutorID)
+	executor, err := store.GetExecutor(ctx, s.e, et.Spec.ExecutorID)
 	if err != nil && err != etcd.ErrKeyNotFound {
 		return err
 	}
 	if executor == nil {
-		log.Warnf("executor with id %q doesn't exist. Skipping fetching", et.Status.ExecutorID)
+		log.Warnf("executor with id %q doesn't exist. Skipping fetching", et.Spec.ExecutorID)
 		return nil
 	}
 
@@ -1107,12 +1041,12 @@ func (s *Runservice) fetchArchive(ctx context.Context, rt *types.RunTask, stepnu
 		log.Errorf("executor task with id %q doesn't exist. This shouldn't happen. Skipping fetching", rt.ID)
 		return nil
 	}
-	executor, err := store.GetExecutor(ctx, s.e, et.Status.ExecutorID)
+	executor, err := store.GetExecutor(ctx, s.e, et.Spec.ExecutorID)
 	if err != nil && err != etcd.ErrKeyNotFound {
 		return err
 	}
 	if executor == nil {
-		log.Warnf("executor with id %q doesn't exist. Skipping fetching", et.Status.ExecutorID)
+		log.Warnf("executor with id %q doesn't exist. Skipping fetching", et.Spec.ExecutorID)
 		return nil
 	}
 

internal/services/runservice/store/store.go

@@ -37,58 +37,6 @@ const (
 	MaxChangegroupNameLength = 256
 )
 
-func OSTSubGroupsAndGroupTypes(group string) []string {
-	h := util.PathHierarchy(group)
-	if len(h)%2 != 1 {
-		panic(fmt.Errorf("wrong group path %q", group))
-	}
-
-	return h
-}
-
-func OSTRootGroup(group string) string {
-	pl := util.PathList(group)
-	if len(pl) < 2 {
-		panic(fmt.Errorf("cannot determine root group name, wrong group path %q", group))
-	}
-
-	return pl[1]
-}
-
-func OSTSubGroups(group string) []string {
-	h := util.PathHierarchy(group)
-	if len(h)%2 != 1 {
-		panic(fmt.Errorf("wrong group path %q", group))
-	}
-
-	// remove group types
-	sg := []string{}
-	for i, g := range h {
-		if i%2 == 0 {
-			sg = append(sg, g)
-		}
-	}
-
-	return sg
-}
-
-func OSTSubGroupTypes(group string) []string {
-	h := util.PathHierarchy(group)
-	if len(h)%2 != 1 {
-		panic(fmt.Errorf("wrong group path %q", group))
-	}
-
-	// remove group names
-	sg := []string{}
-	for i, g := range h {
-		if i%2 == 1 {
-			sg = append(sg, g)
-		}
-	}
-
-	return sg
-}
-
 func OSTUpdateRunCounterAction(ctx context.Context, c uint64, group string) (*datamanager.Action, error) {
 	// use the first group dir after the root
 	pl := util.PathList(group)
@@ -364,7 +312,7 @@ func GetExecutorTasks(ctx context.Context, e *etcd.Store, executorID string) ([]
 			return nil, err
 		}
 		et.Revision = kv.ModRevision
-		if et.Status.ExecutorID == executorID {
+		if et.Spec.ExecutorID == executorID {
 			ets = append(ets, et)
 		}
 	}

services/runservice/types/types.go

@@ -459,9 +459,38 @@ func (s ExecutorTaskPhase) IsFinished() bool {
 }
 
 type ExecutorTask struct {
-	Revision    int64             `json:"revision,omitempty"`
 	ID string `json:"id,omitempty"`
+
+	Spec ExecutorTaskSpec `json:"spec,omitempty"`
+
+	Status ExecutorTaskStatus `json:"status,omitempty"`
+
+	// internal values not saved
+	Revision int64 `json:"-"`
+}
+
+func (et *ExecutorTask) DeepCopy() *ExecutorTask {
+	net, err := copystructure.Copy(et)
+	if err != nil {
+		panic(err)
+	}
+	return net.(*ExecutorTask)
+}
+
+type ExecutorTaskSpec struct {
+	ExecutorID string `json:"executor_id,omitempty"`
 	RunID      string `json:"run_id,omitempty"`
+
+	// Stop is used to signal from the scheduler when the task must be stopped
+	Stop bool `json:"stop,omitempty"`
+
+	*ExecutorTaskSpecData
+}
+
+// ExecutorTaskSpecData defines the task data required to execute the tasks. These
+// values are not saved in etcd to avoid exceeding the max etcd value size but
+// are generated everytime they are sent to the executor
+type ExecutorTaskSpecData struct {
 	TaskName    string            `json:"task_name,omitempty"`
 	Arch        types.Arch        `json:"arch,omitempty"`
 	Containers  []*Container      `json:"containers,omitempty"`
@@ -471,28 +500,25 @@ type ExecutorTask struct {
 	User        string            `json:"user,omitempty"`
 	Privileged  bool              `json:"privileged"`
 
-	DockerRegistriesAuth map[string]DockerRegistryAuth `json:"docker_registries_auth"`
-
-	Steps Steps `json:"steps,omitempty"`
-
-	Status     ExecutorTaskStatus `json:"status,omitempty"`
-	SetupError string             `fail_reason:"setup_error,omitempty"`
-	FailError  string             `fail_reason:"fail_error,omitempty"`
-
 	WorkspaceOperations []WorkspaceOperation `json:"workspace_operations,omitempty"`
 
+	DockerRegistriesAuth map[string]DockerRegistryAuth `json:"docker_registries_auth"`
+
 	// Cache prefix to use when asking for a cache key. To isolate caches between
 	// groups (projects)
 	CachePrefix string `json:"cache_prefix,omitempty"`
 
-	// Stop is used to signal from the scheduler when the task must be stopped
+	Steps Steps `json:"steps,omitempty"`
-	Stop bool `json:"stop,omitempty"`
 }
 
 type ExecutorTaskStatus struct {
-	ExecutorID string            `json:"executor_id,omitempty"`
+	ID       string `json:"id,omitempty"`
+	Revision int64  `json:"revision,omitempty"`
+
 	Phase ExecutorTaskPhase `json:"phase,omitempty"`
 
+	FailError string `json:"fail_error,omitempty"`
+
 	SetupStep ExecutorTaskStepStatus    `json:"setup_step,omitempty"`
 	Steps     []*ExecutorTaskStepStatus `json:"steps,omitempty"`