github.com/zhouyu0/docker-note@v0.0.0-20190722021225-b8d3825084db/integration/container/health_test.go (about)

     1  package container // import "github.com/docker/docker/integration/container"
     2  
     3  import (
     4  	"context"
     5  	"testing"
     6  	"time"
     7  
     8  	"github.com/docker/docker/api/types"
     9  	containertypes "github.com/docker/docker/api/types/container"
    10  	"github.com/docker/docker/client"
    11  	"github.com/docker/docker/integration/internal/container"
    12  	"gotest.tools/poll"
    13  	"gotest.tools/skip"
    14  )
    15  
    16  // TestHealthCheckWorkdir verifies that health-checks inherit the containers'
    17  // working-dir.
    18  func TestHealthCheckWorkdir(t *testing.T) {
    19  	skip.If(t, testEnv.OSType == "windows", "FIXME")
    20  	defer setupTest(t)()
    21  	ctx := context.Background()
    22  	client := testEnv.APIClient()
    23  
    24  	cID := container.Run(t, ctx, client, container.WithTty(true), container.WithWorkingDir("/foo"), func(c *container.TestContainerConfig) {
    25  		c.Config.Healthcheck = &containertypes.HealthConfig{
    26  			Test:     []string{"CMD-SHELL", "if [ \"$PWD\" = \"/foo\" ]; then exit 0; else exit 1; fi;"},
    27  			Interval: 50 * time.Millisecond,
    28  			Retries:  3,
    29  		}
    30  	})
    31  
    32  	poll.WaitOn(t, pollForHealthStatus(ctx, client, cID, types.Healthy), poll.WithDelay(100*time.Millisecond))
    33  }
    34  
    35  func pollForHealthStatus(ctx context.Context, client client.APIClient, containerID string, healthStatus string) func(log poll.LogT) poll.Result {
    36  	return func(log poll.LogT) poll.Result {
    37  		inspect, err := client.ContainerInspect(ctx, containerID)
    38  
    39  		switch {
    40  		case err != nil:
    41  			return poll.Error(err)
    42  		case inspect.State.Health.Status == healthStatus:
    43  			return poll.Success()
    44  		default:
    45  			return poll.Continue("waiting for container to become %s", healthStatus)
    46  		}
    47  	}
    48  }