78 lines
1.6 KiB
Go
78 lines
1.6 KiB
Go
package worker
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import (
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"sync"
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"github.com/containerd/containerd/filters"
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"github.com/moby/buildkit/client"
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"github.com/pkg/errors"
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)
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// Controller holds worker instances.
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// Currently, only local workers are supported.
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type Controller struct {
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// TODO: define worker interface and support remote ones
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workers sync.Map
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defaultID string
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}
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// Add adds a local worker
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func (c *Controller) Add(w Worker) error {
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c.workers.Store(w.ID(), w)
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if c.defaultID == "" {
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c.defaultID = w.ID()
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}
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return nil
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}
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// List lists workers
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func (c *Controller) List(filterStrings ...string) ([]Worker, error) {
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filter, err := filters.ParseAll(filterStrings...)
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if err != nil {
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return nil, err
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}
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var workers []Worker
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c.workers.Range(func(k, v interface{}) bool {
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w := v.(Worker)
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if filter.Match(adaptWorker(w)) {
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workers = append(workers, w)
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}
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return true
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})
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return workers, nil
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}
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// GetDefault returns the default local worker
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func (c *Controller) GetDefault() (Worker, error) {
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if c.defaultID == "" {
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return nil, errors.Errorf("no default worker")
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}
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return c.Get(c.defaultID)
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}
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func (c *Controller) Get(id string) (Worker, error) {
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v, ok := c.workers.Load(id)
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if !ok {
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return nil, errors.Errorf("worker %s not found", id)
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}
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return v.(Worker), nil
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}
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// TODO: add Get(Constraint) (*Worker, error)
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func (c *Controller) WorkerInfos() []client.WorkerInfo {
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workers, err := c.List()
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if err != nil {
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return nil
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}
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out := make([]client.WorkerInfo, 0, len(workers))
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for _, w := range workers {
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out = append(out, client.WorkerInfo{
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ID: w.ID(),
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Labels: w.Labels(),
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Platforms: w.Platforms(),
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})
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}
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return out
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}
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