Adds container name to taskrun.status.steps

Recently while introducing some minor changes in steps status details, it broked some
functionality across CLI, Dashboard and other projects integration.
Maybe because those integration tries to extract some attributes related to the pod base on
TaskRun.Status fields i.e extracting the container name from step's name for
fetching the logs for TaskRun.Status.Steps.

In order to fix the issue, thi patch adds container name in step's status. So that
consumer of status api dont need figure internal details bsed on steps details.

Fixes #1027

pkg/apis/pipeline/v1alpha1/taskrun_types.go

@@ -194,7 +194,8 @@ func (tr *TaskRunStatus) InitializeCloudEvents(targets []string) {
 // StepState reports the results of running a step in the Task.
 type StepState struct {
 	corev1.ContainerState
-	Name string `json:"name,omitempty"`
+	Name          string `json:"name,omitempty"`
+	ContainerName string `json:"container,omitempty"`
 }
 
 // CloudEventDelivery is the target of a cloud event along with the state of

pkg/status/taskrunpod.go

@@ -36,6 +36,7 @@ func UpdateStatusFromPod(taskRun *v1alpha1.TaskRun, pod *corev1.Pod, resourceLis
 			taskRun.Status.Steps = append(taskRun.Status.Steps, v1alpha1.StepState{
 				ContainerState: *s.State.DeepCopy(),
 				Name:           resources.TrimContainerNamePrefix(s.Name),
+				ContainerName:  s.Name,
 			})
 		}
 	}

pkg/status/taskrunpod_test.go

@@ -77,7 +77,8 @@ func TestUpdateStatusFromPod(t *testing.T) {
 					Terminated: &corev1.ContainerStateTerminated{
 						ExitCode: 123,
 					}},
-				Name: "state-name",
+				Name:          "state-name",
+				ContainerName: "step-state-name",
 			}},
 		},
 	}, {
@@ -106,7 +107,8 @@ func TestUpdateStatusFromPod(t *testing.T) {
 					Terminated: &corev1.ContainerStateTerminated{
 						ExitCode: 123,
 					}},
-				Name: "state-name",
+				Name:          "state-name",
+				ContainerName: "step-state-name",
 			}},
 		},
 	}, {
@@ -131,7 +133,8 @@ func TestUpdateStatusFromPod(t *testing.T) {
 					Terminated: &corev1.ContainerStateTerminated{
 						ExitCode: 0,
 					}},
-				Name: "step-push",
+				Name:          "step-push",
+				ContainerName: "step-step-push",
 			}},
 			// We don't actually care about the time, just that it's not nil
 			CompletionTime: &metav1.Time{Time: time.Now()},
@@ -155,7 +158,8 @@ func TestUpdateStatusFromPod(t *testing.T) {
 				ContainerState: corev1.ContainerState{
 					Running: &corev1.ContainerStateRunning{},
 				},
-				Name: "running-step",
+				Name:          "running-step",
+				ContainerName: "step-running-step",
 			}},
 		},
 	}, {
@@ -189,7 +193,8 @@ func TestUpdateStatusFromPod(t *testing.T) {
 					Terminated: &corev1.ContainerStateTerminated{
 						ExitCode: 123,
 					}},
-				Name: "failure",
+				Name:          "failure",
+				ContainerName: "step-failure",
 			}},
 			// We don't actually care about the time, just that it's not nil
 			CompletionTime: &metav1.Time{Time: time.Now()},
@@ -260,7 +265,8 @@ func TestUpdateStatusFromPod(t *testing.T) {
 						Message: "i'm pending",
 					},
 				},
-				Name: "status-name",
+				Name:          "status-name",
+				ContainerName: "step-status-name",
 			}},
 		},
 	}, {
@@ -363,7 +369,8 @@ func TestUpdateStatusFromPod(t *testing.T) {
 				ContainerState: corev1.ContainerState{
 					Running: &corev1.ContainerStateRunning{},
 				},
-				Name: "running-step",
+				Name:          "running-step",
+				ContainerName: "step-running-step",
 			}},
 		},
 	}} {

test/taskrun_test.go

@@ -78,23 +78,26 @@ func TestTaskRunFailure(t *testing.T) {
 				Reason:   "Completed",
 			},
 		},
-		Name: "hello",
+		Name:          "hello",
+		ContainerName: "step-hello",
 	}, {
 		ContainerState: corev1.ContainerState{
 			Terminated: &corev1.ContainerStateTerminated{
 				ExitCode: 1,
 				Reason:   "Error",
 			},
 		},
-		Name: "exit",
+		Name:          "exit",
+		ContainerName: "step-exit",
 	}, {
 		ContainerState: corev1.ContainerState{
 			Terminated: &corev1.ContainerStateTerminated{
 				ExitCode: 0,
 				Reason:   "Completed",
 			},
 		},
-		Name: "world",
+		Name:          "world",
+		ContainerName: "step-world",
 	}}
 	ignoreFields := cmpopts.IgnoreFields(corev1.ContainerStateTerminated{}, "StartedAt", "FinishedAt", "ContainerID")
 	if d := cmp.Diff(taskrun.Status.Steps, expectedStepState, ignoreFields); d != "" {