Golang Job.TaskGroups方法代码示例

//.........这里部分代码省略.........
	result.Priority = 50
	result.Region = "global"
	result.Type = "service"

	// Decode the rest
	if err := mapstructure.WeakDecode(m, result); err != nil {
		return err
	}

	// Value should be an object
	var listVal *ast.ObjectList
	if ot, ok := obj.Val.(*ast.ObjectType); ok {
		listVal = ot.List
	} else {
		return fmt.Errorf("job '%s' value: should be an object", result.ID)
	}

	// Check for invalid keys
	valid := []string{
		"id",
		"name",
		"region",
		"all_at_once",
		"type",
		"priority",
		"datacenters",
		"constraint",
		"update",
		"periodic",
		"meta",
		"task",
		"group",
		"vault_token",
	}
	if err := checkHCLKeys(listVal, valid); err != nil {
		return multierror.Prefix(err, "job:")
	}

	// Parse constraints
	if o := listVal.Filter("constraint"); len(o.Items) > 0 {
		if err := parseConstraints(&result.Constraints, o); err != nil {
			return multierror.Prefix(err, "constraint ->")
		}
	}

	// If we have an update strategy, then parse that
	if o := listVal.Filter("update"); len(o.Items) > 0 {
		if err := parseUpdate(&result.Update, o); err != nil {
			return multierror.Prefix(err, "update ->")
		}
	}

	// If we have a periodic definition, then parse that
	if o := listVal.Filter("periodic"); len(o.Items) > 0 {
		if err := parsePeriodic(&result.Periodic, o); err != nil {
			return multierror.Prefix(err, "periodic ->")
		}
	}

	// Parse out meta fields. These are in HCL as a list so we need
	// to iterate over them and merge them.
	if metaO := listVal.Filter("meta"); len(metaO.Items) > 0 {
		for _, o := range metaO.Elem().Items {
			var m map[string]interface{}
			if err := hcl.DecodeObject(&m, o.Val); err != nil {
				return err
			}
			if err := mapstructure.WeakDecode(m, &result.Meta); err != nil {
				return err
			}
		}
	}

	// If we have tasks outside, create TaskGroups for them
	if o := listVal.Filter("task"); len(o.Items) > 0 {
		var tasks []*structs.Task
		if err := parseTasks(result.Name, "", &tasks, o); err != nil {
			return multierror.Prefix(err, "task:")
		}

		result.TaskGroups = make([]*structs.TaskGroup, len(tasks), len(tasks)*2)
		for i, t := range tasks {
			result.TaskGroups[i] = &structs.TaskGroup{
				Name:      t.Name,
				Count:     1,
				LocalDisk: structs.DefaultLocalDisk(),
				Tasks:     []*structs.Task{t},
			}
		}
	}

	// Parse the task groups
	if o := listVal.Filter("group"); len(o.Items) > 0 {
		if err := parseGroups(result, o); err != nil {
			return multierror.Prefix(err, "group:")
		}
	}

	return nil
}

//.........这里部分代码省略.........
		n := item.Keys[0].Token.Value().(string)

		// Make sure we haven't already found this
		if _, ok := seen[n]; ok {
			return fmt.Errorf("group '%s' defined more than once", n)
		}
		seen[n] = struct{}{}

		// We need this later
		var listVal *ast.ObjectList
		if ot, ok := item.Val.(*ast.ObjectType); ok {
			listVal = ot.List
		} else {
			return fmt.Errorf("group '%s': should be an object", n)
		}

		// Check for invalid keys
		valid := []string{
			"count",
			"constraint",
			"restart",
			"meta",
			"task",
			"local_disk",
		}
		if err := checkHCLKeys(listVal, valid); err != nil {
			return multierror.Prefix(err, fmt.Sprintf("'%s' ->", n))
		}

		var m map[string]interface{}
		if err := hcl.DecodeObject(&m, item.Val); err != nil {
			return err
		}
		delete(m, "constraint")
		delete(m, "meta")
		delete(m, "task")
		delete(m, "restart")
		delete(m, "local_disk")

		// Default count to 1 if not specified
		if _, ok := m["count"]; !ok {
			m["count"] = 1
		}

		// Build the group with the basic decode
		var g structs.TaskGroup
		g.Name = n
		if err := mapstructure.WeakDecode(m, &g); err != nil {
			return err
		}

		// Parse constraints
		if o := listVal.Filter("constraint"); len(o.Items) > 0 {
			if err := parseConstraints(&g.Constraints, o); err != nil {
				return multierror.Prefix(err, fmt.Sprintf("'%s', constraint ->", n))
			}
		}

		// Parse restart policy
		if o := listVal.Filter("restart"); len(o.Items) > 0 {
			if err := parseRestartPolicy(&g.RestartPolicy, o); err != nil {
				return multierror.Prefix(err, fmt.Sprintf("'%s', restart ->", n))
			}
		}

		// Parse local disk
		g.LocalDisk = structs.DefaultLocalDisk()
		if o := listVal.Filter("local_disk"); len(o.Items) > 0 {
			if err := parseLocalDisk(&g.LocalDisk, o); err != nil {
				return multierror.Prefix(err, fmt.Sprintf("'%s', local_disk ->", n))
			}
		}

		// Parse out meta fields. These are in HCL as a list so we need
		// to iterate over them and merge them.
		if metaO := listVal.Filter("meta"); len(metaO.Items) > 0 {
			for _, o := range metaO.Elem().Items {
				var m map[string]interface{}
				if err := hcl.DecodeObject(&m, o.Val); err != nil {
					return err
				}
				if err := mapstructure.WeakDecode(m, &g.Meta); err != nil {
					return err
				}
			}
		}

		// Parse tasks
		if o := listVal.Filter("task"); len(o.Items) > 0 {
			if err := parseTasks(result.Name, g.Name, &g.Tasks, o); err != nil {
				return multierror.Prefix(err, fmt.Sprintf("'%s', task:", n))
			}
		}

		collection = append(collection, &g)
	}

	result.TaskGroups = append(result.TaskGroups, collection...)
	return nil
}

func parseGroups(result *structs.Job, obj *hclobj.Object) error {
	// Get all the maps of keys to the actual object
	objects := make(map[string]*hclobj.Object)
	for _, o1 := range obj.Elem(false) {
		for _, o2 := range o1.Elem(true) {
			if _, ok := objects[o2.Key]; ok {
				return fmt.Errorf(
					"group '%s' defined more than once",
					o2.Key)
			}

			objects[o2.Key] = o2
		}
	}

	if len(objects) == 0 {
		return nil
	}

	// Go through each object and turn it into an actual result.
	collection := make([]*structs.TaskGroup, 0, len(objects))
	for n, o := range objects {
		var m map[string]interface{}
		if err := hcl.DecodeObject(&m, o); err != nil {
			return err
		}
		delete(m, "constraint")
		delete(m, "meta")
		delete(m, "task")

		// Default count to 1 if not specified
		if _, ok := m["count"]; !ok {
			m["count"] = 1
		}

		// Build the group with the basic decode
		var g structs.TaskGroup
		g.Name = n
		if err := mapstructure.WeakDecode(m, &g); err != nil {
			return err
		}

		// Parse constraints
		if o := o.Get("constraint", false); o != nil {
			if err := parseConstraints(&g.Constraints, o); err != nil {
				return err
			}
		}

		// Parse out meta fields. These are in HCL as a list so we need
		// to iterate over them and merge them.
		if metaO := o.Get("meta", false); metaO != nil {
			for _, o := range metaO.Elem(false) {
				var m map[string]interface{}
				if err := hcl.DecodeObject(&m, o); err != nil {
					return err
				}
				if err := mapstructure.WeakDecode(m, &g.Meta); err != nil {
					return err
				}
			}
		}

		// Parse tasks
		if o := o.Get("task", false); o != nil {
			if err := parseTasks(&g.Tasks, o); err != nil {
				return err
			}
		}

		collection = append(collection, &g)
	}

	result.TaskGroups = append(result.TaskGroups, collection...)
	return nil
}

func parseJob(result *structs.Job, obj *hclobj.Object) error {
	if obj.Len() > 1 {
		return fmt.Errorf("only one 'job' block allowed")
	}

	// Get our job object
	obj = obj.Elem(true)[0]

	// Decode the full thing into a map[string]interface for ease
	var m map[string]interface{}
	if err := hcl.DecodeObject(&m, obj); err != nil {
		return err
	}
	delete(m, "constraint")
	delete(m, "meta")
	delete(m, "update")

	// Set the ID and name to the object key
	result.ID = obj.Key
	result.Name = obj.Key

	// Defaults
	result.Priority = 50
	result.Region = "global"
	result.Type = "service"

	// Decode the rest
	if err := mapstructure.WeakDecode(m, result); err != nil {
		return err
	}

	// Parse constraints
	if o := obj.Get("constraint", false); o != nil {
		if err := parseConstraints(&result.Constraints, o); err != nil {
			return err
		}
	}

	// If we have an update strategy, then parse that
	if o := obj.Get("update", false); o != nil {
		if err := parseUpdate(&result.Update, o); err != nil {
			return err
		}
	}

	// Parse out meta fields. These are in HCL as a list so we need
	// to iterate over them and merge them.
	if metaO := obj.Get("meta", false); metaO != nil {
		for _, o := range metaO.Elem(false) {
			var m map[string]interface{}
			if err := hcl.DecodeObject(&m, o); err != nil {
				return err
			}
			if err := mapstructure.WeakDecode(m, &result.Meta); err != nil {
				return err
			}
		}
	}

	// If we have tasks outside, do those
	if o := obj.Get("task", false); o != nil {
		var tasks []*structs.Task
		if err := parseTasks(&tasks, o); err != nil {
			return err
		}

		result.TaskGroups = make([]*structs.TaskGroup, len(tasks), len(tasks)*2)
		for i, t := range tasks {
			result.TaskGroups[i] = &structs.TaskGroup{
				Name:  t.Name,
				Count: 1,
				Tasks: []*structs.Task{t},
			}
		}
	}

	// Parse the task groups
	if o := obj.Get("group", false); o != nil {
		if err := parseGroups(result, o); err != nil {
			return fmt.Errorf("error parsing 'group': %s", err)
		}
	}

	return nil
}

func parseJob(result *structs.Job, list *ast.ObjectList) error {
	list = list.Children()
	if len(list.Items) != 1 {
		return fmt.Errorf("only one 'job' block allowed")
	}

	// Get our job object
	obj := list.Items[0]

	// Decode the full thing into a map[string]interface for ease
	var m map[string]interface{}
	if err := hcl.DecodeObject(&m, obj.Val); err != nil {
		return err
	}
	delete(m, "constraint")
	delete(m, "meta")
	delete(m, "update")

	// Set the ID and name to the object key
	result.ID = obj.Keys[0].Token.Value().(string)
	result.Name = result.ID

	// Defaults
	result.Priority = 50
	result.Region = "global"
	result.Type = "service"

	// Decode the rest
	if err := mapstructure.WeakDecode(m, result); err != nil {
		return err
	}

	// Value should be an object
	var listVal *ast.ObjectList
	if ot, ok := obj.Val.(*ast.ObjectType); ok {
		listVal = ot.List
	} else {
		return fmt.Errorf("job '%s' value: should be an object", result.ID)
	}

	// Parse constraints
	if o := listVal.Filter("constraint"); len(o.Items) > 0 {
		if err := parseConstraints(&result.Constraints, o); err != nil {
			return err
		}
	}

	// If we have an update strategy, then parse that
	if o := listVal.Filter("update"); len(o.Items) > 0 {
		if err := parseUpdate(&result.Update, o); err != nil {
			return err
		}
	}

	// Parse out meta fields. These are in HCL as a list so we need
	// to iterate over them and merge them.
	if metaO := listVal.Filter("meta"); len(metaO.Items) > 0 {
		for _, o := range metaO.Elem().Items {
			var m map[string]interface{}
			if err := hcl.DecodeObject(&m, o.Val); err != nil {
				return err
			}
			if err := mapstructure.WeakDecode(m, &result.Meta); err != nil {
				return err
			}
		}
	}

	// If we have tasks outside, create TaskGroups for them
	if o := listVal.Filter("task"); len(o.Items) > 0 {
		var tasks []*structs.Task
		if err := parseTasks(result.Name, "", &tasks, o); err != nil {
			return err
		}

		result.TaskGroups = make([]*structs.TaskGroup, len(tasks), len(tasks)*2)
		for i, t := range tasks {
			result.TaskGroups[i] = &structs.TaskGroup{
				Name:          t.Name,
				Count:         1,
				Tasks:         []*structs.Task{t},
				RestartPolicy: structs.NewRestartPolicy(result.Type),
			}
		}
	}

	// Parse the task groups
	if o := listVal.Filter("group"); len(o.Items) > 0 {
		if err := parseGroups(result, o); err != nil {
			return fmt.Errorf("error parsing 'group': %s", err)
		}
	}

	return nil
}