mirror of https://github.com/portainer/portainer
135 lines
3.0 KiB
Go
135 lines
3.0 KiB
Go
package stack
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import (
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"github.com/portainer/portainer"
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"github.com/portainer/portainer/bolt/internal"
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"github.com/boltdb/bolt"
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)
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const (
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// BucketName represents the name of the bucket where this service stores data.
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BucketName = "stacks"
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)
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// Service represents a service for managing endpoint data.
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type Service struct {
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db *bolt.DB
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}
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// NewService creates a new instance of a service.
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func NewService(db *bolt.DB) (*Service, error) {
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err := internal.CreateBucket(db, BucketName)
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if err != nil {
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return nil, err
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}
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return &Service{
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db: db,
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}, nil
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}
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// Stack returns a stack object by ID.
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func (service *Service) Stack(ID portainer.StackID) (*portainer.Stack, error) {
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var stack portainer.Stack
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identifier := internal.Itob(int(ID))
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err := internal.GetObject(service.db, BucketName, identifier, &stack)
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if err != nil {
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return nil, err
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}
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return &stack, nil
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}
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// StackByName returns a stack object by name.
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func (service *Service) StackByName(name string) (*portainer.Stack, error) {
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var stack *portainer.Stack
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err := service.db.View(func(tx *bolt.Tx) error {
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bucket := tx.Bucket([]byte(BucketName))
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cursor := bucket.Cursor()
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for k, v := cursor.First(); k != nil; k, v = cursor.Next() {
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var t portainer.Stack
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err := internal.UnmarshalObject(v, &t)
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if err != nil {
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return err
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}
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if t.Name == name {
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stack = &t
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break
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}
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}
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if stack == nil {
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return portainer.ErrObjectNotFound
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}
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return nil
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})
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return stack, err
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}
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// Stacks returns an array containing all the stacks.
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func (service *Service) Stacks() ([]portainer.Stack, error) {
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var stacks = make([]portainer.Stack, 0)
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err := service.db.View(func(tx *bolt.Tx) error {
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bucket := tx.Bucket([]byte(BucketName))
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cursor := bucket.Cursor()
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for k, v := cursor.First(); k != nil; k, v = cursor.Next() {
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var stack portainer.Stack
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err := internal.UnmarshalObject(v, &stack)
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if err != nil {
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return err
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}
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stacks = append(stacks, stack)
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}
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return nil
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})
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return stacks, err
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}
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// GetNextIdentifier returns the next identifier for a stack.
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func (service *Service) GetNextIdentifier() int {
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return internal.GetNextIdentifier(service.db, BucketName)
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}
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// CreateStack creates a new stack.
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func (service *Service) CreateStack(stack *portainer.Stack) error {
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return service.db.Update(func(tx *bolt.Tx) error {
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bucket := tx.Bucket([]byte(BucketName))
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// We manually manage sequences for stacks
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err := bucket.SetSequence(uint64(stack.ID))
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if err != nil {
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return err
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}
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data, err := internal.MarshalObject(stack)
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if err != nil {
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return err
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}
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return bucket.Put(internal.Itob(int(stack.ID)), data)
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})
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}
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// UpdateStack updates a stack.
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func (service *Service) UpdateStack(ID portainer.StackID, stack *portainer.Stack) error {
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identifier := internal.Itob(int(ID))
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return internal.UpdateObject(service.db, BucketName, identifier, stack)
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}
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// DeleteStack deletes a stack.
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func (service *Service) DeleteStack(ID portainer.StackID) error {
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identifier := internal.Itob(int(ID))
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return internal.DeleteObject(service.db, BucketName, identifier)
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}
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