95 lines
2.1 KiB
Go
95 lines
2.1 KiB
Go
package k8s
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import (
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v1 "k8s.io/api/core/v1"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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restclient "k8s.io/client-go/rest"
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)
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const defaultKillGrace int64 = 5
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type (
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// Loggable represents a K8s resource that has containers and can be logged.
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Loggable interface {
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Res
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Containers(ns, n string) ([]string, error)
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Logs(ns, n, co string, lines int64, previous bool) *restclient.Request
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}
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// Pod represents a Kubernetes resource.
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Pod struct{}
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)
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// NewPod returns a new Pod.
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func NewPod() Res {
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return &Pod{}
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}
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// Get a service.
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func (*Pod) Get(ns, n string) (interface{}, error) {
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opts := metav1.GetOptions{}
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return conn.dialOrDie().CoreV1().Pods(ns).Get(n, opts)
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}
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// List all services in a given namespace
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func (*Pod) List(ns string) (Collection, error) {
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opts := metav1.ListOptions{}
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rr, err := conn.dialOrDie().CoreV1().Pods(ns).List(opts)
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if err != nil {
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return Collection{}, err
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}
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cc := make(Collection, len(rr.Items))
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for i, r := range rr.Items {
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cc[i] = r
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}
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return cc, nil
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}
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// Delete a service
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func (*Pod) Delete(ns, n string) error {
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var grace = defaultKillGrace
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opts := metav1.DeleteOptions{
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GracePeriodSeconds: &grace,
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}
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return conn.dialOrDie().CoreV1().Pods(ns).Delete(n, &opts)
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}
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// Containers returns all container names on pod
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func (*Pod) Containers(ns, n string) ([]string, error) {
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opts := metav1.GetOptions{}
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cc := []string{}
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po, err := conn.dialOrDie().CoreV1().Pods(ns).Get(n, opts)
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if err != nil {
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return cc, err
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}
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for _, c := range po.Spec.Containers {
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cc = append(cc, c.Name)
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}
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return cc, nil
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}
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// Logs fetch container logs for a given pod and container.
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func (*Pod) Logs(ns, n, co string, lines int64, prev bool) *restclient.Request {
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opts := &v1.PodLogOptions{
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Container: co,
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Follow: true,
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TailLines: &lines,
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Previous: prev,
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}
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return conn.dialOrDie().CoreV1().Pods(ns).GetLogs(n, opts)
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}
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// Events retrieved pod's events.
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func (*Pod) Events(ns, n string) (*v1.EventList, error) {
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e := conn.dialOrDie().Core().Events(ns)
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sel := e.GetFieldSelector(&n, &ns, nil, nil)
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opts := metav1.ListOptions{FieldSelector: sel.String()}
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ee, err := e.List(opts)
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return ee, err
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}
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