75 lines
1.9 KiB
Go
75 lines
1.9 KiB
Go
/*
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Copyright 2018 Google LLC
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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 commands
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import (
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"fmt"
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"github.com/containers/image/manifest"
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"github.com/docker/docker/builder/dockerfile/instructions"
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"github.com/sirupsen/logrus"
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"strings"
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)
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type ExposeCommand struct {
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cmd *instructions.ExposeCommand
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}
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func (r *ExposeCommand) ExecuteCommand(config *manifest.Schema2Config) error {
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return updateExposedPorts(r.cmd.Ports, config)
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}
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func validProtocol(protocol string) bool {
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validProtocols := [2]string{"tcp", "udp"}
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for _, p := range validProtocols {
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if protocol == p {
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return true
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}
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}
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return false
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}
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func updateExposedPorts(ports []string, config *manifest.Schema2Config) error {
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// Grab the currently exposed ports
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existingPorts := config.ExposedPorts
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// Add any new ones in
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for _, p := range ports {
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// Add the default protocol if one isn't specified
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if !strings.Contains(p, "/") {
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p = p + "/tcp"
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}
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protocol := strings.Split(p, "/")[1]
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if !validProtocol(protocol) {
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return fmt.Errorf("Invalid protocol: %s", protocol)
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}
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logrus.Infof("Adding exposed port: %s", p)
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var x struct{}
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existingPorts[manifest.Schema2Port(p)] = x
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}
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config.ExposedPorts = existingPorts
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return nil
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}
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func (r *ExposeCommand) FilesToSnapshot() []string {
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return []string{}
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}
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func (r *ExposeCommand) CreatedBy() string {
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s := []string{"/bin/sh", "-c"}
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return strings.Join(append(s, r.cmd.Ports...), " ")
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}
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