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container.go
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container.go
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package k8s
import (
"context"
"fmt"
"bunnyshell.com/cli/pkg/interactive"
corev1 "k8s.io/api/core/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
v1 "k8s.io/client-go/kubernetes/typed/core/v1"
)
type ContainerListOptions struct {
Namespace string
PodName string
Container string
Client v1.PodsGetter
}
type ContainerItem struct {
fmt.Stringer
*corev1.Container
State corev1.ContainerState
}
func (c *ContainerItem) String() string {
status := getStatus(c.State)
return fmt.Sprintf("[%s] %s", status, c.Container.Name)
}
func ContainerList(options *ContainerListOptions) ([]*ContainerItem, error) {
pod, err := options.Client.Pods(options.Namespace).Get(context.TODO(), options.PodName, metav1.GetOptions{})
if err != nil {
return nil, err
}
containers := []*ContainerItem{}
for index := range pod.Spec.Containers {
containers = append(containers, &ContainerItem{
Container: &pod.Spec.Containers[index],
State: pod.Status.ContainerStatuses[index].State,
})
}
return containers, nil
}
func ContainerSelect(options *ContainerListOptions) (*ContainerItem, error) {
containers, err := ContainerList(options)
if err != nil {
return nil, err
}
if len(containers) == 0 {
return nil, errEmptyList
}
if len(containers) == 1 {
return containers[0], nil
}
index, _, err := interactive.Choose("Choose a container", containersToSelectorItems(containers))
if err != nil {
return nil, err
}
return containers[index], nil
}
func containersToSelectorItems(containers []*ContainerItem) []string {
names := make([]string, len(containers))
for index, container := range containers {
names[index] = container.String()
}
return names
}
func getStatus(state corev1.ContainerState) string {
switch {
case state.Waiting != nil:
return state.Waiting.Reason
case state.Running != nil:
return "running"
case state.Terminated != nil:
return state.Terminated.Reason
}
return "unknown"
}