79 lines
2 KiB
Go
79 lines
2 KiB
Go
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package docker
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import (
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"fmt"
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"math/rand"
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"golang.org/x/net/context"
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"github.com/docker/engine-api/types"
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"github.com/docker/engine-api/types/container"
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"github.com/docker/engine-api/types/strslice"
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)
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// Create lets you create a container with the specified image, and default
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// configuration.
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func (p *Project) Create(image string) (types.ContainerJSON, error) {
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return p.CreateWithConfig(image, ContainerConfig{})
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}
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// CreateWithConfig lets you create a container with the specified image, and
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// some custom simple configuration.
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func (p *Project) CreateWithConfig(image string, containerConfig ContainerConfig) (types.ContainerJSON, error) {
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err := p.ensureImageExists(image, false)
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if err != nil {
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return types.ContainerJSON{}, err
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}
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labels := mergeLabels(p.Labels, containerConfig.Labels)
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config := &container.Config{
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Image: image,
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Labels: labels,
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}
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if len(containerConfig.Entrypoint) > 0 {
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config.Entrypoint = strslice.StrSlice(containerConfig.Entrypoint)
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}
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if len(containerConfig.Cmd) > 0 {
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config.Cmd = strslice.StrSlice(containerConfig.Cmd)
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}
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var containerName string
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if containerConfig.Name != "" {
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containerName = containerConfig.Name
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} else {
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containerName = fmt.Sprintf("kermit_%s", randSeq(10))
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}
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response, err := p.Client.ContainerCreate(context.Background(), config, &container.HostConfig{}, nil, containerName)
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if err != nil {
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return types.ContainerJSON{}, err
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}
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return p.Inspect(response.ID)
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}
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func mergeLabels(defaultLabels, additionnalLabels map[string]string) map[string]string {
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labels := make(map[string]string, len(defaultLabels))
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if len(additionnalLabels) > 0 {
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for key, value := range additionnalLabels {
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labels[key] = value
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}
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}
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// default labels overrides additionnals
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for key, value := range defaultLabels {
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labels[key] = value
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}
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return labels
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}
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var letters = []rune("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ")
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func randSeq(n int) string {
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b := make([]rune, n)
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for i := range b {
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b[i] = letters[rand.Intn(len(letters))]
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}
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return string(b)
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}
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