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moby--moby/integration/internal/swarm/states.go
Yong Tang e485a60e2b Move serviceRunningTasksCount to integration/internal/swarm
This fix moves multiple places of serviceRunningTasksCount
to one location in integration/internal/swarm, so that
code duplication could be removed.

Signed-off-by: Yong Tang <yong.tang.github@outlook.com>
2019-01-19 18:54:32 +00:00

72 lines
2.3 KiB
Go

package swarm
import (
"context"
"github.com/docker/docker/api/types"
"github.com/docker/docker/api/types/filters"
swarmtypes "github.com/docker/docker/api/types/swarm"
"github.com/docker/docker/client"
"gotest.tools/poll"
)
// NoTasksForService verifies that there are no more tasks for the given service
func NoTasksForService(ctx context.Context, client client.ServiceAPIClient, serviceID string) func(log poll.LogT) poll.Result {
return func(log poll.LogT) poll.Result {
tasks, err := client.TaskList(ctx, types.TaskListOptions{
Filters: filters.NewArgs(
filters.Arg("service", serviceID),
),
})
if err == nil {
if len(tasks) == 0 {
return poll.Success()
}
if len(tasks) > 0 {
return poll.Continue("task count for service %s at %d waiting for 0", serviceID, len(tasks))
}
return poll.Continue("waiting for tasks for service %s to be deleted", serviceID)
}
// TODO we should not use an error as indication that the tasks are gone. There may be other reasons for an error to occur.
return poll.Success()
}
}
// NoTasks verifies that all tasks are gone
func NoTasks(ctx context.Context, client client.ServiceAPIClient) func(log poll.LogT) poll.Result {
return func(log poll.LogT) poll.Result {
tasks, err := client.TaskList(ctx, types.TaskListOptions{})
switch {
case err != nil:
return poll.Error(err)
case len(tasks) == 0:
return poll.Success()
default:
return poll.Continue("waiting for all tasks to be removed: task count at %d", len(tasks))
}
}
}
// RunningTasksCount verifies there are `instances` tasks running for `serviceID`
func RunningTasksCount(client client.ServiceAPIClient, serviceID string, instances uint64) func(log poll.LogT) poll.Result {
return func(log poll.LogT) poll.Result {
filter := filters.NewArgs()
filter.Add("service", serviceID)
tasks, err := client.TaskList(context.Background(), types.TaskListOptions{
Filters: filter,
})
switch {
case err != nil:
return poll.Error(err)
case len(tasks) == int(instances):
for _, task := range tasks {
if task.Status.State != swarmtypes.TaskStateRunning {
return poll.Continue("waiting for tasks to enter run state")
}
}
return poll.Success()
default:
return poll.Continue("task count at %d waiting for %d", len(tasks), instances)
}
}
}