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add container names kubectl logs output

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Present a list of container names one can choose from.
This commit is contained in:
Julian Strobl 2016-01-11 15:26:44 +01:00
parent 6e15394171
commit 6cd10d4f87
2 changed files with 23 additions and 5 deletions
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26
pkg/registry/pod/strategy.go
View File

@ -22,6 +22,7 @@ import (
"net/http"
"net/url"
"strconv"
"strings"
"time"
"k8s.io/kubernetes/pkg/api"
@ -231,6 +232,15 @@ func ResourceLocation(getter ResourceGetter, rt http.RoundTripper, ctx api.Conte
return loc, rt, nil
}
// getContainerNames returns a formatted string containing the container names
func getContainerNames(pod *api.Pod) string {
names := []string{}
for _, c := range pod.Spec.Containers {
names = append(names, c.Name)
}
return strings.Join(names, " ")
}
// LogLocation returns the log URL for a pod container. If opts.Container is blank
// and only one container is present in the pod, that container is used.
func LogLocation(
@ -249,10 +259,14 @@ func LogLocation(
// If a container was provided, it must be valid
container := opts.Container
if len(container) == 0 {
if len(pod.Spec.Containers) == 1 {
switch len(pod.Spec.Containers) {
case 1:
container = pod.Spec.Containers[0].Name
} else {
case 0:
return nil, nil, errors.NewBadRequest(fmt.Sprintf("a container name must be specified for pod %s", name))
default:
containerNames := getContainerNames(pod)
return nil, nil, errors.NewBadRequest(fmt.Sprintf("a container name must be specified for pod %s, choose one of: [%s]", name, containerNames))
}
} else {
if !podHasContainerWithName(pod, container) {
@ -386,10 +400,14 @@ func streamLocation(
// Try to figure out a container
// If a container was provided, it must be valid
if container == "" {
if len(pod.Spec.Containers) == 1 {
switch len(pod.Spec.Containers) {
case 1:
container = pod.Spec.Containers[0].Name
} else {
case 0:
return nil, nil, errors.NewBadRequest(fmt.Sprintf("a container name must be specified for pod %s", name))
default:
containerNames := getContainerNames(pod)
return nil, nil, errors.NewBadRequest(fmt.Sprintf("a container name must be specified for pod %s, choose one of: [%s]", name, containerNames))
}
} else {
if !podHasContainerWithName(pod, container) {

2
pkg/registry/pod/strategy_test.go
View File

@ -129,7 +129,7 @@ func TestCheckLogLocation(t *testing.T) {
Status: api.PodStatus{},
},
opts: &api.PodLogOptions{},
expectedErr: errors.NewBadRequest("a container name must be specified for pod test"),
expectedErr: errors.NewBadRequest("a container name must be specified for pod test, choose one of: [container1 container2]"),
},
{
in: &api.Pod{