80 lines
2.1 KiB
Go
80 lines
2.1 KiB
Go
/*
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Copyright 2020 Docker Compose CLI authors
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package compose
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import (
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"context"
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"fmt"
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"strconv"
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"strings"
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"github.com/spf13/cobra"
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"github.com/docker/compose/v2/pkg/api"
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)
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type portOptions struct {
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*ProjectOptions
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port uint16
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protocol string
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index int
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}
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func portCommand(p *ProjectOptions, streams api.Streams, backend api.Service) *cobra.Command {
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opts := portOptions{
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ProjectOptions: p,
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}
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cmd := &cobra.Command{
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Use: "port [OPTIONS] SERVICE PRIVATE_PORT",
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Short: "Print the public port for a port binding.",
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Args: cobra.MinimumNArgs(2),
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PreRunE: Adapt(func(ctx context.Context, args []string) error {
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port, err := strconv.ParseUint(args[1], 10, 16)
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if err != nil {
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return err
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}
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opts.port = uint16(port)
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opts.protocol = strings.ToLower(opts.protocol)
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return nil
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}),
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RunE: Adapt(func(ctx context.Context, args []string) error {
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return runPort(ctx, streams, backend, opts, args[0])
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}),
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ValidArgsFunction: completeServiceNames(p),
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}
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cmd.Flags().StringVar(&opts.protocol, "protocol", "tcp", "tcp or udp")
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cmd.Flags().IntVar(&opts.index, "index", 0, "index of the container if service has multiple replicas")
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return cmd
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}
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func runPort(ctx context.Context, streams api.Streams, backend api.Service, opts portOptions, service string) error {
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projectName, err := opts.toProjectName()
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if err != nil {
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return err
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}
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ip, port, err := backend.Port(ctx, projectName, service, opts.port, api.PortOptions{
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Protocol: opts.protocol,
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Index: opts.index,
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})
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if err != nil {
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return err
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}
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fmt.Fprintf(streams.Out(), "%s:%d\n", ip, port)
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return nil
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}
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