112 lines
2.7 KiB
Go
112 lines
2.7 KiB
Go
/*
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Copyright 2017 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package sandbox
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import (
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"sync"
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"github.com/containerd/containerd"
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"github.com/docker/docker/pkg/truncindex"
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"github.com/containerd/cri-containerd/pkg/store"
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)
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// Sandbox contains all resources associated with the sandbox. All methods to
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// mutate the internal state are thread safe.
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type Sandbox struct {
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// Metadata is the metadata of the sandbox, it is immutable after created.
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Metadata
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// Container is the containerd sandbox container client
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Container containerd.Container
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// CNI network namespace client
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NetNS *NetNS
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// IP of Pod if it is attached to non host network
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IP string
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}
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// Store stores all sandboxes.
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type Store struct {
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lock sync.RWMutex
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sandboxes map[string]Sandbox
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idIndex *truncindex.TruncIndex
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}
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// NewStore creates a sandbox store.
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func NewStore() *Store {
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return &Store{
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sandboxes: make(map[string]Sandbox),
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idIndex: truncindex.NewTruncIndex([]string{}),
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}
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}
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// Add a sandbox into the store.
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func (s *Store) Add(sb Sandbox) error {
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s.lock.Lock()
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defer s.lock.Unlock()
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if _, ok := s.sandboxes[sb.ID]; ok {
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return store.ErrAlreadyExist
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}
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if err := s.idIndex.Add(sb.ID); err != nil {
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return err
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}
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s.sandboxes[sb.ID] = sb
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return nil
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}
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// Get returns the sandbox with specified id. Returns nil
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// if the sandbox doesn't exist.
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func (s *Store) Get(id string) (Sandbox, error) {
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s.lock.RLock()
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defer s.lock.RUnlock()
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id, err := s.idIndex.Get(id)
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if err != nil {
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if err == truncindex.ErrNotExist {
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err = store.ErrNotExist
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}
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return Sandbox{}, err
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}
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if sb, ok := s.sandboxes[id]; ok {
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return sb, nil
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}
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return Sandbox{}, store.ErrNotExist
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}
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// List lists all sandboxes.
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func (s *Store) List() []Sandbox {
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s.lock.RLock()
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defer s.lock.RUnlock()
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var sandboxes []Sandbox
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for _, sb := range s.sandboxes {
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sandboxes = append(sandboxes, sb)
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}
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return sandboxes
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}
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// Delete deletes the sandbox with specified id.
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func (s *Store) Delete(id string) {
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s.lock.Lock()
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defer s.lock.Unlock()
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id, err := s.idIndex.Get(id)
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if err != nil {
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// Note: The idIndex.Delete and delete doesn't handle truncated index.
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// So we need to return if there are error.
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return
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}
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s.idIndex.Delete(id) // nolint: errcheck
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delete(s.sandboxes, id)
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}
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