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package client // import "github.com/docker/docker/client"
import (
"context"
"encoding/json"
"net/url"
"path"
"github.com/docker/docker/api/types/container"
"github.com/docker/docker/api/types/network"
"github.com/docker/docker/api/types/versions"
ocispec "github.com/opencontainers/image-spec/specs-go/v1"
)
type configWrapper struct {
*container.Config
HostConfig *container.HostConfig
NetworkingConfig *network.NetworkingConfig
}
// ContainerCreate creates a new container based on the given configuration.
// It can be associated with a name, but it's not mandatory.
func (cli *Client) ContainerCreate(ctx context.Context, config *container.Config, hostConfig *container.HostConfig, networkingConfig *network.NetworkingConfig, platform *ocispec.Platform, containerName string) (container.CreateResponse, error) {
var response container.CreateResponse
if err := cli.NewVersionError("1.25", "stop timeout"); config != nil && config.StopTimeout != nil && err != nil {
return response, err
}
if err := cli.NewVersionError("1.41", "specify container image platform"); platform != nil && err != nil {
return response, err
}
if hostConfig != nil {
if versions.LessThan(cli.ClientVersion(), "1.25") {
// When using API 1.24 and under, the client is responsible for removing the container
hostConfig.AutoRemove = false
}
if versions.GreaterThanOrEqualTo(cli.ClientVersion(), "1.42") || versions.LessThan(cli.ClientVersion(), "1.40") {
// KernelMemory was added in API 1.40, and deprecated in API 1.42
hostConfig.KernelMemory = 0
}
if platform != nil && platform.OS == "linux" && versions.LessThan(cli.ClientVersion(), "1.42") {
// When using API under 1.42, the Linux daemon doesn't respect the ConsoleSize
hostConfig.ConsoleSize = [2]uint{0, 0}
}
}
query := url.Values{}
if p := formatPlatform(platform); p != "" {
query.Set("platform", p)
}
if containerName != "" {
query.Set("name", containerName)
}
body := configWrapper{
Config: config,
HostConfig: hostConfig,
NetworkingConfig: networkingConfig,
}
serverResp, err := cli.post(ctx, "/containers/create", query, body, nil)
defer ensureReaderClosed(serverResp)
if err != nil {
return response, err
}
err = json.NewDecoder(serverResp.body).Decode(&response)
return response, err
}
// formatPlatform returns a formatted string representing platform (e.g. linux/arm/v7).
//
// Similar to containerd's platforms.Format(), but does allow components to be
// omitted (e.g. pass "architecture" only, without "os":
// https://github.com/containerd/containerd/blob/v1.5.2/platforms/platforms.go#L243-L263
func formatPlatform(platform *ocispec.Platform) string {
if platform == nil {
return ""
}
return path.Join(platform.OS, platform.Architecture, platform.Variant)
}
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