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server.go
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server.go
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package client
import (
"context"
"os"
"time"
"github.com/alecthomas/kong"
"github.com/postfinance/discovery/internal/server/convert"
discoveryv1 "github.com/postfinance/discovery/pkg/discoverypb/postfinance/discovery/v1"
"github.com/zbindenren/sfmt"
"go.uber.org/zap"
)
const registerTimout = 300 * time.Second
type serverCmd struct {
List serverList `cmd:"" help:"List registered servers."`
Register serverRegister `cmd:"" help:"Register a server."`
UnRegister serverUnRegister `cmd:"" name:"unregister" help:"Unregister a server."`
}
type serverList struct {
Output string `short:"o" default:"table" help:"Output formats. Valid formats: json, yaml, csv, table."`
Headers bool `short:"H" help:"Show headers."`
}
//nolint:dupl // it does not the same as namespaceList command
func (s serverList) Run(g *Globals, l *zap.SugaredLogger, c *kong.Context) error {
cli, err := g.serverClient()
if err != nil {
return err
}
ctx, cancel := g.ctx()
defer cancel()
r, err := cli.ListServer(ctx, &discoveryv1.ListServerRequest{})
if err != nil {
return err
}
servers := convert.ServersFromPB(r.GetServers())
sw := sfmt.SliceWriter{
Writer: os.Stdout,
NoHeaders: !s.Headers,
}
f := sfmt.ParseFormat(s.Output)
sw.Write(f, servers)
return nil
}
type serverRegister struct {
Name string `arg:"true" help:"Server name." required:"true"`
Labels map[string]string `short:"l" help:"Labels" mapsep:","`
}
func (s serverRegister) Run(g *Globals, l *zap.SugaredLogger, c *kong.Context) error {
cli, err := g.serverClient()
if err != nil {
return err
}
l.Infow("increasing command timeout", "timeout", registerTimout)
ctx, cancel := context.WithTimeout(context.Background(), registerTimout)
defer cancel()
_, err = cli.RegisterServer(ctx, &discoveryv1.RegisterServerRequest{
Name: s.Name,
Labels: s.Labels,
})
return err
}
type serverUnRegister struct {
Name string `arg:"true" help:"Server name." required:"true"`
}
func (s serverUnRegister) Run(g *Globals, l *zap.SugaredLogger, c *kong.Context) error {
cli, err := g.serverClient()
if err != nil {
return err
}
l.Infow("increasing command timeout", "timeout", registerTimout)
ctx, cancel := context.WithTimeout(context.Background(), registerTimout)
defer cancel()
_, err = cli.UnregisterServer(ctx, &discoveryv1.UnregisterServerRequest{
Name: s.Name,
})
return err
}