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create.go
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create.go
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// SPDX-License-Identifier: BSD-3-Clause
// Copyright (c) 2023, Unikraft GmbH and The KraftKit Authors.
// Licensed under the BSD-3-Clause License (the "License").
// You may not use this file except in compliance with the License.
package create
import (
"context"
"fmt"
"os"
"slices"
"strconv"
"strings"
"github.com/MakeNowJust/heredoc"
"github.com/spf13/cobra"
kraftcloud "sdk.kraft.cloud"
kraftcloudservices "sdk.kraft.cloud/services"
"kraftkit.sh/cmdfactory"
"kraftkit.sh/config"
"kraftkit.sh/internal/cli/kraft/cloud/utils"
"kraftkit.sh/log"
)
type CreateOptions struct {
Auth *config.AuthConfig `noattribute:"true"`
Client kraftcloudservices.ServicesService `noattribute:"true"`
FQDN string `local:"true" long:"fqdn" short:"d" usage:"Specify the fully qualified domain name of the service"`
SubDomain string `local:"true" long:"subdomain" short:"s" usage:"Set the subdomain to use when creating the service"`
Metro string `noattribute:"true"`
Name string `local:"true" long:"name" short:"n" usage:"Specify the name of the package"`
Output string `local:"true" long:"output" short:"o" usage:"Set output format" default:"table"`
}
// Create a KraftCloud instance.
func Create(ctx context.Context, opts *CreateOptions, args ...string) (*kraftcloudservices.ServiceGroup, error) {
var err error
if opts == nil {
opts = &CreateOptions{}
}
if len(opts.SubDomain) > 0 && len(opts.FQDN) > 0 {
return nil, fmt.Errorf("the `--subdomain|-s` option is mutually exclusive with `--fqdn|--domain|-d`")
}
if opts.Auth == nil {
opts.Auth, err = config.GetKraftCloudAuthConfigFromContext(ctx)
if err != nil {
return nil, fmt.Errorf("could not retrieve credentials: %w", err)
}
}
if opts.Client == nil {
opts.Client = kraftcloud.NewServicesClient(
kraftcloud.WithToken(config.GetKraftCloudTokenAuthConfig(*opts.Auth)),
)
}
services := []kraftcloudservices.Service{}
if len(args) == 1 && strings.HasPrefix(args[0], "443:") && strings.Count(args[0], "/") == 0 {
split := strings.Split(args[0], ":")
if len(split) != 2 {
return nil, fmt.Errorf("malformed port expeted format EXTERNAL:INTERNAL[/HANDLER[,HANDLER...]]")
}
destPort, err := strconv.Atoi(split[1])
if err != nil {
return nil, fmt.Errorf("invalid external port: %w", err)
}
services = []kraftcloudservices.Service{
{
Port: 443,
DestinationPort: destPort,
Handlers: []kraftcloudservices.Handler{
kraftcloudservices.HandlerHTTP,
kraftcloudservices.HandlerTLS,
},
},
{
Port: 80,
DestinationPort: 443,
Handlers: []kraftcloudservices.Handler{
kraftcloudservices.HandlerHTTP,
kraftcloudservices.HandlerRedirect,
},
},
}
} else {
for _, port := range args {
service := kraftcloudservices.Service{
Handlers: []kraftcloudservices.Handler{},
}
if strings.ContainsRune(port, '/') {
split := strings.Split(port, "/")
if len(split) != 2 {
return nil, fmt.Errorf("malformed port expeted format EXTERNAL:INTERNAL[/HANDLER[,HANDLER...]]")
}
for _, handler := range strings.Split(split[1], "+") {
h := kraftcloudservices.Handler(handler)
if !slices.Contains(kraftcloudservices.Handlers(), h) {
return nil, fmt.Errorf("unknown handler: %s (choice of %v)", handler, kraftcloudservices.Handlers())
}
service.Handlers = append(service.Handlers, h)
}
port = split[0]
}
if strings.ContainsRune(port, ':') {
ports := strings.Split(port, ":")
if len(ports) != 2 {
return nil, fmt.Errorf("invalid --port value expected --port EXTERNAL:INTERNAL")
}
service.Port, err = strconv.Atoi(ports[0])
if err != nil {
return nil, fmt.Errorf("invalid internal port: %w", err)
}
service.DestinationPort, err = strconv.Atoi(ports[1])
if err != nil {
return nil, fmt.Errorf("invalid external port: %w", err)
}
} else {
port, err := strconv.Atoi(port)
if err != nil {
return nil, fmt.Errorf("could not parse port number: %w", err)
}
service.Port = port
service.DestinationPort = port
}
services = append(services, service)
}
}
req := kraftcloudservices.ServiceCreateRequest{
Name: opts.Name,
Services: services,
}
if len(opts.SubDomain) > 0 {
req.DNSName = strings.TrimSuffix(opts.SubDomain, ".")
} else if len(opts.FQDN) > 0 {
if !strings.HasSuffix(".", opts.FQDN) {
opts.FQDN += "."
}
req.DNSName = opts.FQDN
}
return opts.Client.WithMetro(opts.Metro).Create(ctx, req)
}
func NewCmd() *cobra.Command {
cmd, err := cmdfactory.New(&CreateOptions{}, cobra.Command{
Short: "Create a service group",
Use: "create [FLAGS] EXTERNAL:INTERNAL[/HANDLER[+HANDLER...]]",
Args: cobra.MinimumNArgs(1),
Aliases: []string{"new"},
Example: heredoc.Doc(`
# Create a service group with a single service listening on port 443 named "my-service"
$ kraft cloud service create --name my-service 443:8080/http+tls
`),
Annotations: map[string]string{
cmdfactory.AnnotationHelpGroup: "kraftcloud-svc",
},
})
if err != nil {
panic(err)
}
cmd.Flags().String(
"domain",
"",
"Alias for --fqdn|-d",
)
return cmd
}
func (opts *CreateOptions) Pre(cmd *cobra.Command, _ []string) error {
opts.Metro = cmd.Flag("metro").Value.String()
if opts.Metro == "" {
opts.Metro = os.Getenv("KRAFTCLOUD_METRO")
}
if opts.Metro == "" {
return fmt.Errorf("kraftcloud metro is unset")
}
log.G(cmd.Context()).WithField("metro", opts.Metro).Debug("using")
domain := cmd.Flag("domain").Value.String()
if len(domain) > 0 && len(opts.FQDN) > 0 {
return fmt.Errorf("cannot use --domain and --fqdn together")
} else if len(domain) > 0 && len(opts.FQDN) == 0 {
opts.FQDN = domain
}
return nil
}
func (opts *CreateOptions) Run(ctx context.Context, args []string) error {
serviceGroup, err := Create(ctx, opts, args...)
if err != nil {
return err
}
return utils.PrintServiceGroups(ctx, opts.Output, *serviceGroup)
}