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task_manager.go
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task_manager.go
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package impl
import (
"bytes"
"context"
"strconv"
"time"
"github.com/flyteorg/flyteidl/gen/pb-go/flyteidl/core"
"github.com/flyteorg/flytestdlib/contextutils"
"github.com/prometheus/client_golang/prometheus"
"github.com/flyteorg/flytestdlib/promutils"
"github.com/flyteorg/flytestdlib/promutils/labeled"
"github.com/golang/protobuf/ptypes"
"github.com/flyteorg/flytestdlib/logger"
"github.com/flyteorg/flyteadmin/pkg/common"
"github.com/flyteorg/flyteadmin/pkg/errors"
"github.com/flyteorg/flyteadmin/pkg/manager/impl/resources"
"github.com/flyteorg/flyteadmin/pkg/manager/impl/util"
"github.com/flyteorg/flyteadmin/pkg/manager/impl/validation"
"github.com/flyteorg/flyteadmin/pkg/manager/interfaces"
repoInterfaces "github.com/flyteorg/flyteadmin/pkg/repositories/interfaces"
"github.com/flyteorg/flyteadmin/pkg/repositories/transformers"
runtimeInterfaces "github.com/flyteorg/flyteadmin/pkg/runtime/interfaces"
workflowengine "github.com/flyteorg/flyteadmin/pkg/workflowengine/interfaces"
"github.com/flyteorg/flyteidl/gen/pb-go/flyteidl/admin"
"google.golang.org/grpc/codes"
)
type taskMetrics struct {
Scope promutils.Scope
ClosureSizeBytes prometheus.Summary
Registered labeled.Counter
}
type TaskManager struct {
db repoInterfaces.Repository
config runtimeInterfaces.Configuration
compiler workflowengine.Compiler
metrics taskMetrics
resourceManager interfaces.ResourceInterface
}
func getTaskContext(ctx context.Context, identifier *core.Identifier) context.Context {
ctx = contextutils.WithProjectDomain(ctx, identifier.Project, identifier.Domain)
return contextutils.WithTaskID(ctx, identifier.Name)
}
func setDefaults(request admin.TaskCreateRequest) (admin.TaskCreateRequest, error) {
if request.Id == nil {
return request, errors.NewFlyteAdminError(codes.InvalidArgument,
"missing identifier for TaskCreateRequest")
}
request.Spec.Template.Id = request.Id
return request, nil
}
func (t *TaskManager) CreateTask(
ctx context.Context,
request admin.TaskCreateRequest) (*admin.TaskCreateResponse, error) {
platformTaskResources := util.GetTaskResources(ctx, request.Id, t.resourceManager, t.config.TaskResourceConfiguration())
if err := validation.ValidateTask(ctx, request, t.db, platformTaskResources,
t.config.WhitelistConfiguration(), t.config.ApplicationConfiguration()); err != nil {
logger.Debugf(ctx, "Task [%+v] failed validation with err: %v", request.Id, err)
return nil, err
}
ctx = getTaskContext(ctx, request.Id)
finalizedRequest, err := setDefaults(request)
if err != nil {
return nil, err
}
// Compile task and store the compiled version in the database.
compiledTask, err := t.compiler.CompileTask(finalizedRequest.Spec.Template)
if err != nil {
logger.Debugf(ctx, "Failed to compile task with id [%+v] with err %v", request.Id, err)
return nil, err
}
createdAt, err := ptypes.TimestampProto(time.Now())
if err != nil {
return nil, errors.NewFlyteAdminErrorf(codes.Internal,
"Failed to serialize CreatedAt: %v when creating task: %+v", err, request.Id)
}
taskDigest, err := util.GetTaskDigest(ctx, compiledTask)
if err != nil {
logger.Errorf(ctx, "failed to compute task digest with err %v", err)
return nil, err
}
// See if a task exists and confirm whether it's an identical task or one that with a separate definition.
existingTask, err := util.GetTaskModel(ctx, t.db, request.Spec.Template.Id)
if err == nil {
if bytes.Equal(taskDigest, existingTask.Digest) {
return nil, errors.NewFlyteAdminErrorf(codes.AlreadyExists,
"identical task already exists with id %s", request.Id)
}
return nil, errors.NewFlyteAdminErrorf(codes.InvalidArgument,
"task with different structure already exists with id %v", request.Id)
}
taskModel, err := transformers.CreateTaskModel(finalizedRequest, admin.TaskClosure{
CompiledTask: compiledTask,
CreatedAt: createdAt,
}, taskDigest)
if err != nil {
logger.Errorf(ctx,
"Failed to transform task model [%+v] with err: %v", finalizedRequest, err)
return nil, err
}
descriptionModel, err := transformers.CreateDescriptionEntityModel(request.Spec.Description, *request.Id)
if err != nil {
logger.Errorf(ctx,
"Failed to transform description model [%+v] with err: %v", request.Spec.Description, err)
return nil, err
}
if descriptionModel != nil {
taskModel.ShortDescription = descriptionModel.ShortDescription
}
err = t.db.TaskRepo().Create(ctx, taskModel, descriptionModel)
if err != nil {
logger.Debugf(ctx, "Failed to create task model with id [%+v] with err %v", request.Id, err)
return nil, err
}
t.metrics.ClosureSizeBytes.Observe(float64(len(taskModel.Closure)))
if finalizedRequest.Spec.Template.Metadata != nil {
contextWithRuntimeMeta := context.WithValue(
ctx, common.RuntimeTypeKey, finalizedRequest.Spec.Template.Metadata.Runtime.Type.String())
contextWithRuntimeMeta = context.WithValue(
contextWithRuntimeMeta, common.RuntimeVersionKey, finalizedRequest.Spec.Template.Metadata.Runtime.Version)
t.metrics.Registered.Inc(contextWithRuntimeMeta)
}
return &admin.TaskCreateResponse{}, nil
}
func (t *TaskManager) GetTask(ctx context.Context, request admin.ObjectGetRequest) (*admin.Task, error) {
if err := validation.ValidateIdentifier(request.Id, common.Task); err != nil {
logger.Debugf(ctx, "invalid identifier [%+v]: %v", request.Id, err)
}
ctx = getTaskContext(ctx, request.Id)
task, err := util.GetTask(ctx, t.db, *request.Id)
if err != nil {
logger.Debugf(ctx, "Failed to get task with id [%+v] with err %v", err, request.Id)
return nil, err
}
return task, nil
}
func (t *TaskManager) ListTasks(ctx context.Context, request admin.ResourceListRequest) (*admin.TaskList, error) {
// Check required fields
if err := validation.ValidateResourceListRequest(request); err != nil {
logger.Debugf(ctx, "Invalid request [%+v]: %v", request, err)
return nil, err
}
ctx = contextutils.WithProjectDomain(ctx, request.Id.Project, request.Id.Domain)
ctx = contextutils.WithTaskID(ctx, request.Id.Name)
spec := util.FilterSpec{
Project: request.Id.Project,
Domain: request.Id.Domain,
Name: request.Id.Name,
RequestFilters: request.Filters,
}
filters, err := util.GetDbFilters(spec, common.Task)
if err != nil {
return nil, err
}
var sortParameter common.SortParameter
if request.SortBy != nil {
sortParameter, err = common.NewSortParameter(*request.SortBy)
if err != nil {
return nil, err
}
}
offset, err := validation.ValidateToken(request.Token)
if err != nil {
return nil, errors.NewFlyteAdminErrorf(codes.InvalidArgument,
"invalid pagination token %s for ListTasks", request.Token)
}
// And finally, query the database
listTasksInput := repoInterfaces.ListResourceInput{
Limit: int(request.Limit),
Offset: offset,
InlineFilters: filters,
SortParameter: sortParameter,
}
output, err := t.db.TaskRepo().List(ctx, listTasksInput)
if err != nil {
logger.Debugf(ctx, "Failed to list tasks with id [%+v] with err %v", request.Id, err)
return nil, err
}
taskList, err := transformers.FromTaskModels(output.Tasks)
if err != nil {
logger.Errorf(ctx,
"Failed to transform task models [%+v] with err: %v", output.Tasks, err)
return nil, err
}
var token string
if len(taskList) == int(request.Limit) {
token = strconv.Itoa(offset + len(taskList))
}
return &admin.TaskList{
Tasks: taskList,
Token: token,
}, nil
}
// This queries the unique tasks for the given query parameters. At least the project and domain must be specified.
// It will return all tasks, but only the one of each even if there are multiple versions.
func (t *TaskManager) ListUniqueTaskIdentifiers(ctx context.Context, request admin.NamedEntityIdentifierListRequest) (
*admin.NamedEntityIdentifierList, error) {
if err := validation.ValidateNamedEntityIdentifierListRequest(request); err != nil {
logger.Debugf(ctx, "invalid request [%+v]: %v", request, err)
return nil, err
}
ctx = contextutils.WithProjectDomain(ctx, request.Project, request.Domain)
filters, err := util.GetDbFilters(util.FilterSpec{
Project: request.Project,
Domain: request.Domain,
}, common.Task)
if err != nil {
return nil, err
}
var sortParameter common.SortParameter
if request.SortBy != nil {
sortParameter, err = common.NewSortParameter(*request.SortBy)
if err != nil {
return nil, err
}
}
offset, err := validation.ValidateToken(request.Token)
if err != nil {
return nil, errors.NewFlyteAdminErrorf(codes.InvalidArgument,
"invalid pagination token %s for ListUniqueTaskIdentifiers", request.Token)
}
listTasksInput := repoInterfaces.ListResourceInput{
Limit: int(request.Limit),
Offset: offset,
InlineFilters: filters,
SortParameter: sortParameter,
}
output, err := t.db.TaskRepo().ListTaskIdentifiers(ctx, listTasksInput)
if err != nil {
logger.Debugf(ctx, "Failed to list tasks ids with project: %s and domain: %s with err %v",
request.Project, request.Domain, err)
return nil, err
}
idList := transformers.FromTaskModelsToIdentifiers(output.Tasks)
var token string
if len(idList) == int(request.Limit) {
token = strconv.Itoa(offset + len(idList))
}
return &admin.NamedEntityIdentifierList{
Entities: idList,
Token: token,
}, nil
}
func NewTaskManager(
db repoInterfaces.Repository,
config runtimeInterfaces.Configuration, compiler workflowengine.Compiler,
scope promutils.Scope) interfaces.TaskInterface {
metrics := taskMetrics{
Scope: scope,
ClosureSizeBytes: scope.MustNewSummary("closure_size_bytes", "size in bytes of serialized task closure"),
Registered: labeled.NewCounter("num_registered", "count of registered tasks", scope),
}
resourceManager := resources.NewResourceManager(db, config.ApplicationConfiguration())
return &TaskManager{
db: db,
config: config,
compiler: compiler,
metrics: metrics,
resourceManager: resourceManager,
}
}