mirror of https://github.com/docker/compose.git
142 lines
3.6 KiB
Go
142 lines
3.6 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 run
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import (
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"fmt"
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"strconv"
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"strings"
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"github.com/docker/compose-cli/utils"
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"github.com/docker/docker/pkg/namesgenerator"
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"github.com/docker/go-connections/nat"
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"github.com/docker/compose-cli/api/containers"
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"github.com/docker/compose-cli/formatter"
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)
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// Opts contain run command options
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type Opts struct {
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Name string
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Publish []string
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Labels []string
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Volumes []string
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Cpus float64
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Memory formatter.MemBytes
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Detach bool
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Environment []string
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RestartPolicyCondition string
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DomainName string
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}
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// ToContainerConfig convert run options to a container configuration
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func (r *Opts) ToContainerConfig(image string) (containers.ContainerConfig, error) {
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if r.Name == "" {
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r.Name = getRandomName()
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}
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publish, err := r.toPorts()
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if err != nil {
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return containers.ContainerConfig{}, err
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}
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labels, err := toLabels(r.Labels)
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if err != nil {
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return containers.ContainerConfig{}, err
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}
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restartPolicy, err := toRestartPolicy(r.RestartPolicyCondition)
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if err != nil {
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return containers.ContainerConfig{}, err
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}
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return containers.ContainerConfig{
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ID: r.Name,
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Image: image,
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Ports: publish,
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Labels: labels,
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Volumes: r.Volumes,
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MemLimit: r.Memory,
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CPULimit: r.Cpus,
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Environment: r.Environment,
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RestartPolicyCondition: restartPolicy,
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DomainName: r.DomainName,
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}, nil
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}
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func toRestartPolicy(value string) (string, error) {
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if value == "" {
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return containers.RestartPolicyNone, nil
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}
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if utils.StringContains(containers.RestartPolicyList, value) {
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return value, nil
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}
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return "", fmt.Errorf("invalid restart value, must be one of %s", strings.Join(containers.RestartPolicyList, ", "))
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}
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func (r *Opts) toPorts() ([]containers.Port, error) {
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_, bindings, err := nat.ParsePortSpecs(r.Publish)
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if err != nil {
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return nil, err
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}
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var result []containers.Port
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for port, bind := range bindings {
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for _, portbind := range bind {
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var hostPort uint32
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if portbind.HostPort != "" {
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hp, err := strconv.Atoi(portbind.HostPort)
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if err != nil {
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return nil, err
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}
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hostPort = uint32(hp)
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} else {
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hostPort = uint32(port.Int())
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}
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result = append(result, containers.Port{
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HostPort: hostPort,
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ContainerPort: uint32(port.Int()),
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Protocol: port.Proto(),
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HostIP: portbind.HostIP,
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})
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}
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}
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return result, nil
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}
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func toLabels(labels []string) (map[string]string, error) {
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result := map[string]string{}
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for _, label := range labels {
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parts := strings.Split(label, "=")
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if len(parts) != 2 {
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return nil, fmt.Errorf("wrong label format %q", label)
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}
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result[parts[0]] = parts[1]
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}
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return result, nil
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}
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func getRandomName() string {
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// Azure supports hyphen but not underscore in names
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return strings.Replace(namesgenerator.GetRandomName(0), "_", "-", -1)
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}
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