316 lines
8.1 KiB
Go
316 lines
8.1 KiB
Go
package stack
|
|
|
|
import (
|
|
"fmt"
|
|
"io/ioutil"
|
|
"os"
|
|
"sort"
|
|
"strings"
|
|
|
|
"github.com/docker/docker/api/types"
|
|
"github.com/docker/docker/api/types/swarm"
|
|
"github.com/docker/docker/cli/command"
|
|
"github.com/docker/docker/cli/compose/convert"
|
|
"github.com/docker/docker/cli/compose/loader"
|
|
composetypes "github.com/docker/docker/cli/compose/types"
|
|
apiclient "github.com/docker/docker/client"
|
|
dockerclient "github.com/docker/docker/client"
|
|
"github.com/pkg/errors"
|
|
"golang.org/x/net/context"
|
|
)
|
|
|
|
func deployCompose(ctx context.Context, dockerCli *command.DockerCli, opts deployOptions) error {
|
|
configDetails, err := getConfigDetails(opts)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
config, err := loader.Load(configDetails)
|
|
if err != nil {
|
|
if fpe, ok := err.(*loader.ForbiddenPropertiesError); ok {
|
|
return errors.Errorf("Compose file contains unsupported options:\n\n%s\n",
|
|
propertyWarnings(fpe.Properties))
|
|
}
|
|
|
|
return err
|
|
}
|
|
|
|
unsupportedProperties := loader.GetUnsupportedProperties(configDetails)
|
|
if len(unsupportedProperties) > 0 {
|
|
fmt.Fprintf(dockerCli.Err(), "Ignoring unsupported options: %s\n\n",
|
|
strings.Join(unsupportedProperties, ", "))
|
|
}
|
|
|
|
deprecatedProperties := loader.GetDeprecatedProperties(configDetails)
|
|
if len(deprecatedProperties) > 0 {
|
|
fmt.Fprintf(dockerCli.Err(), "Ignoring deprecated options:\n\n%s\n\n",
|
|
propertyWarnings(deprecatedProperties))
|
|
}
|
|
|
|
if err := checkDaemonIsSwarmManager(ctx, dockerCli); err != nil {
|
|
return err
|
|
}
|
|
|
|
namespace := convert.NewNamespace(opts.namespace)
|
|
|
|
if opts.prune {
|
|
services := map[string]struct{}{}
|
|
for _, service := range config.Services {
|
|
services[service.Name] = struct{}{}
|
|
}
|
|
pruneServices(ctx, dockerCli, namespace, services)
|
|
}
|
|
|
|
serviceNetworks := getServicesDeclaredNetworks(config.Services)
|
|
networks, externalNetworks := convert.Networks(namespace, config.Networks, serviceNetworks)
|
|
if err := validateExternalNetworks(ctx, dockerCli, externalNetworks); err != nil {
|
|
return err
|
|
}
|
|
if err := createNetworks(ctx, dockerCli, namespace, networks); err != nil {
|
|
return err
|
|
}
|
|
|
|
secrets, err := convert.Secrets(namespace, config.Secrets)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
if err := createSecrets(ctx, dockerCli, namespace, secrets); err != nil {
|
|
return err
|
|
}
|
|
|
|
services, err := convert.Services(namespace, config, dockerCli.Client())
|
|
if err != nil {
|
|
return err
|
|
}
|
|
return deployServices(ctx, dockerCli, services, namespace, opts.sendRegistryAuth)
|
|
}
|
|
|
|
func getServicesDeclaredNetworks(serviceConfigs []composetypes.ServiceConfig) map[string]struct{} {
|
|
serviceNetworks := map[string]struct{}{}
|
|
for _, serviceConfig := range serviceConfigs {
|
|
if len(serviceConfig.Networks) == 0 {
|
|
serviceNetworks["default"] = struct{}{}
|
|
continue
|
|
}
|
|
for network := range serviceConfig.Networks {
|
|
serviceNetworks[network] = struct{}{}
|
|
}
|
|
}
|
|
return serviceNetworks
|
|
}
|
|
|
|
func propertyWarnings(properties map[string]string) string {
|
|
var msgs []string
|
|
for name, description := range properties {
|
|
msgs = append(msgs, fmt.Sprintf("%s: %s", name, description))
|
|
}
|
|
sort.Strings(msgs)
|
|
return strings.Join(msgs, "\n\n")
|
|
}
|
|
|
|
func getConfigDetails(opts deployOptions) (composetypes.ConfigDetails, error) {
|
|
var details composetypes.ConfigDetails
|
|
var err error
|
|
|
|
details.WorkingDir, err = os.Getwd()
|
|
if err != nil {
|
|
return details, err
|
|
}
|
|
|
|
configFile, err := getConfigFile(opts.composefile)
|
|
if err != nil {
|
|
return details, err
|
|
}
|
|
// TODO: support multiple files
|
|
details.ConfigFiles = []composetypes.ConfigFile{*configFile}
|
|
details.Environment, err = buildEnvironment(os.Environ())
|
|
if err != nil {
|
|
return details, err
|
|
}
|
|
return details, nil
|
|
}
|
|
|
|
func buildEnvironment(env []string) (map[string]string, error) {
|
|
result := make(map[string]string, len(env))
|
|
for _, s := range env {
|
|
// if value is empty, s is like "K=", not "K".
|
|
if !strings.Contains(s, "=") {
|
|
return result, errors.Errorf("unexpected environment %q", s)
|
|
}
|
|
kv := strings.SplitN(s, "=", 2)
|
|
result[kv[0]] = kv[1]
|
|
}
|
|
return result, nil
|
|
}
|
|
|
|
func getConfigFile(filename string) (*composetypes.ConfigFile, error) {
|
|
bytes, err := ioutil.ReadFile(filename)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
config, err := loader.ParseYAML(bytes)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
return &composetypes.ConfigFile{
|
|
Filename: filename,
|
|
Config: config,
|
|
}, nil
|
|
}
|
|
|
|
func validateExternalNetworks(
|
|
ctx context.Context,
|
|
dockerCli *command.DockerCli,
|
|
externalNetworks []string) error {
|
|
client := dockerCli.Client()
|
|
|
|
for _, networkName := range externalNetworks {
|
|
network, err := client.NetworkInspect(ctx, networkName, false)
|
|
if err != nil {
|
|
if dockerclient.IsErrNetworkNotFound(err) {
|
|
return errors.Errorf("network %q is declared as external, but could not be found. You need to create the network before the stack is deployed (with overlay driver)", networkName)
|
|
}
|
|
return err
|
|
}
|
|
if network.Scope != "swarm" {
|
|
return errors.Errorf("network %q is declared as external, but it is not in the right scope: %q instead of %q", networkName, network.Scope, "swarm")
|
|
}
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
func createSecrets(
|
|
ctx context.Context,
|
|
dockerCli *command.DockerCli,
|
|
namespace convert.Namespace,
|
|
secrets []swarm.SecretSpec,
|
|
) error {
|
|
client := dockerCli.Client()
|
|
|
|
for _, secretSpec := range secrets {
|
|
secret, _, err := client.SecretInspectWithRaw(ctx, secretSpec.Name)
|
|
if err == nil {
|
|
// secret already exists, then we update that
|
|
if err := client.SecretUpdate(ctx, secret.ID, secret.Meta.Version, secretSpec); err != nil {
|
|
return err
|
|
}
|
|
} else if apiclient.IsErrSecretNotFound(err) {
|
|
// secret does not exist, then we create a new one.
|
|
if _, err := client.SecretCreate(ctx, secretSpec); err != nil {
|
|
return err
|
|
}
|
|
} else {
|
|
return err
|
|
}
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func createNetworks(
|
|
ctx context.Context,
|
|
dockerCli *command.DockerCli,
|
|
namespace convert.Namespace,
|
|
networks map[string]types.NetworkCreate,
|
|
) error {
|
|
client := dockerCli.Client()
|
|
|
|
existingNetworks, err := getStackNetworks(ctx, client, namespace.Name())
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
existingNetworkMap := make(map[string]types.NetworkResource)
|
|
for _, network := range existingNetworks {
|
|
existingNetworkMap[network.Name] = network
|
|
}
|
|
|
|
for internalName, createOpts := range networks {
|
|
name := namespace.Scope(internalName)
|
|
if _, exists := existingNetworkMap[name]; exists {
|
|
continue
|
|
}
|
|
|
|
if createOpts.Driver == "" {
|
|
createOpts.Driver = defaultNetworkDriver
|
|
}
|
|
|
|
fmt.Fprintf(dockerCli.Out(), "Creating network %s\n", name)
|
|
if _, err := client.NetworkCreate(ctx, name, createOpts); err != nil {
|
|
return err
|
|
}
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
func deployServices(
|
|
ctx context.Context,
|
|
dockerCli *command.DockerCli,
|
|
services map[string]swarm.ServiceSpec,
|
|
namespace convert.Namespace,
|
|
sendAuth bool,
|
|
) error {
|
|
apiClient := dockerCli.Client()
|
|
out := dockerCli.Out()
|
|
|
|
existingServices, err := getServices(ctx, apiClient, namespace.Name())
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
existingServiceMap := make(map[string]swarm.Service)
|
|
for _, service := range existingServices {
|
|
existingServiceMap[service.Spec.Name] = service
|
|
}
|
|
|
|
for internalName, serviceSpec := range services {
|
|
name := namespace.Scope(internalName)
|
|
|
|
encodedAuth := ""
|
|
if sendAuth {
|
|
// Retrieve encoded auth token from the image reference
|
|
image := serviceSpec.TaskTemplate.ContainerSpec.Image
|
|
encodedAuth, err = command.RetrieveAuthTokenFromImage(ctx, dockerCli, image)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
}
|
|
|
|
if service, exists := existingServiceMap[name]; exists {
|
|
fmt.Fprintf(out, "Updating service %s (id: %s)\n", name, service.ID)
|
|
|
|
updateOpts := types.ServiceUpdateOptions{}
|
|
if sendAuth {
|
|
updateOpts.EncodedRegistryAuth = encodedAuth
|
|
}
|
|
response, err := apiClient.ServiceUpdate(
|
|
ctx,
|
|
service.ID,
|
|
service.Version,
|
|
serviceSpec,
|
|
updateOpts,
|
|
)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
for _, warning := range response.Warnings {
|
|
fmt.Fprintln(dockerCli.Err(), warning)
|
|
}
|
|
} else {
|
|
fmt.Fprintf(out, "Creating service %s\n", name)
|
|
|
|
createOpts := types.ServiceCreateOptions{}
|
|
if sendAuth {
|
|
createOpts.EncodedRegistryAuth = encodedAuth
|
|
}
|
|
if _, err := apiClient.ServiceCreate(ctx, serviceSpec, createOpts); err != nil {
|
|
return err
|
|
}
|
|
}
|
|
}
|
|
|
|
return nil
|
|
}
|