k9s/internal/dao/log_options.go

132 lines
2.9 KiB
Go

package dao
import (
"fmt"
"strings"
"time"
"github.com/derailed/k9s/internal/client"
v1 "k8s.io/api/core/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
)
// LogOptions represents logger options.
type LogOptions struct {
Path string
Container string
DefaultContainer string
SinceTime string
Lines int64
SinceSeconds int64
Previous bool
SingleContainer bool
MultiPods bool
ShowTimestamp bool
AllContainers bool
}
// Info returns the option pod and container info.
func (o *LogOptions) Info() string {
return fmt.Sprintf("%q::%q", o.Path, o.Container)
}
func (o *LogOptions) Clone() *LogOptions {
return &LogOptions{
Path: o.Path,
Container: o.Container,
DefaultContainer: o.DefaultContainer,
Lines: o.Lines,
Previous: o.Previous,
SingleContainer: o.SingleContainer,
MultiPods: o.MultiPods,
ShowTimestamp: o.ShowTimestamp,
SinceTime: o.SinceTime,
SinceSeconds: o.SinceSeconds,
AllContainers: o.AllContainers,
}
}
// HasContainer checks if a container is present.
func (o *LogOptions) HasContainer() bool {
return o.Container != ""
}
// ToggleAllContainers toggles single or all-containers if possible.
func (o *LogOptions) ToggleAllContainers() {
if o.SingleContainer {
return
}
o.AllContainers = !o.AllContainers
if o.AllContainers {
o.DefaultContainer, o.Container = o.Container, ""
return
}
if o.DefaultContainer != "" {
o.Container = o.DefaultContainer
}
}
// ToPodLogOptions returns pod log options.
func (o *LogOptions) ToPodLogOptions() *v1.PodLogOptions {
opts := v1.PodLogOptions{
Follow: true,
Timestamps: true,
Container: o.Container,
Previous: o.Previous,
TailLines: &o.Lines,
}
if o.SinceSeconds < 0 {
return &opts
}
if o.SinceSeconds != 0 {
opts.SinceSeconds, opts.SinceTime = &o.SinceSeconds, nil
return &opts
}
if o.SinceTime == "" {
return &opts
}
if t, err := time.Parse(time.RFC3339, o.SinceTime); err == nil {
opts.SinceTime = &metav1.Time{Time: t.Add(time.Second)}
}
return &opts
}
// FixedSizeName returns a normalize fixed size pod name if possible.
func (o *LogOptions) FixedSizeName() string {
_, n := client.Namespaced(o.Path)
tokens := strings.Split(n, "-")
if len(tokens) < 3 {
return n
}
var s []string
for i := 0; i < len(tokens)-1; i++ {
s = append(s, tokens[i])
}
return Truncate(strings.Join(s, "-"), 15) + "-" + tokens[len(tokens)-1]
}
// DecorateLog add a log header to display po/co information along with the log message.
func (o *LogOptions) DecorateLog(bytes []byte) *LogItem {
item := NewLogItem(bytes)
if len(bytes) == 0 {
return item
}
item.SingleContainer = o.SingleContainer
if item.SingleContainer {
item.Container = o.Container
}
if o.MultiPods {
_, pod := client.Namespaced(o.Path)
item.Pod, item.Container = pod, o.Container
} else {
item.Container = o.Container
}
return item
}