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package cluster // import "github.com/docker/docker/daemon/cluster"
import (
"context"
apitypes "github.com/docker/docker/api/types"
"github.com/docker/docker/api/types/filters"
types "github.com/docker/docker/api/types/swarm"
"github.com/docker/docker/daemon/cluster/convert"
swarmapi "github.com/docker/swarmkit/api"
"google.golang.org/grpc"
)
// GetTasks returns a list of tasks matching the filter options.
func (c *Cluster) GetTasks(options apitypes.TaskListOptions) ([]types.Task, error) {
var r *swarmapi.ListTasksResponse
if err := c.lockedManagerAction(func(ctx context.Context, state nodeState) error {
filterTransform := func(filter filters.Args) error {
if filter.Contains("service") {
serviceFilters := filter.Get("service")
for _, serviceFilter := range serviceFilters {
service, err := getService(ctx, state.controlClient, serviceFilter, false)
if err != nil {
return err
}
filter.Del("service", serviceFilter)
filter.Add("service", service.ID)
}
}
if filter.Contains("node") {
nodeFilters := filter.Get("node")
for _, nodeFilter := range nodeFilters {
node, err := getNode(ctx, state.controlClient, nodeFilter)
if err != nil {
return err
}
filter.Del("node", nodeFilter)
filter.Add("node", node.ID)
}
}
if !filter.Contains("runtime") {
// default to only showing container tasks
filter.Add("runtime", "container")
filter.Add("runtime", "")
}
return nil
}
filters, err := newListTasksFilters(options.Filters, filterTransform)
if err != nil {
return err
}
r, err = state.controlClient.ListTasks(
ctx,
&swarmapi.ListTasksRequest{Filters: filters},
grpc.MaxCallRecvMsgSize(defaultRecvSizeForListResponse),
)
return err
}); err != nil {
return nil, err
}
tasks := make([]types.Task, 0, len(r.Tasks))
for _, task := range r.Tasks {
t, err := convert.TaskFromGRPC(*task)
if err != nil {
return nil, err
}
tasks = append(tasks, t)
}
return tasks, nil
}
// GetTask returns a task by an ID.
func (c *Cluster) GetTask(input string) (types.Task, error) {
var task *swarmapi.Task
if err := c.lockedManagerAction(func(ctx context.Context, state nodeState) error {
t, err := getTask(ctx, state.controlClient, input)
if err != nil {
return err
}
task = t
return nil
}); err != nil {
return types.Task{}, err
}
return convert.TaskFromGRPC(*task)
}
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