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package flagparser
import (
"fmt"
"strings"
"github.com/docker/swarmkit/api"
"github.com/docker/swarmkit/cmd/swarmctl/common"
"github.com/spf13/cobra"
)
// expects secrets in the format SECRET_NAME:TARGET_NAME
func parseSecretString(secretString string) (secretName, presentName string, err error) {
tokens := strings.Split(secretString, ":")
secretName = strings.TrimSpace(tokens[0])
if secretName == "" {
err = fmt.Errorf("invalid secret name provided")
return
}
if len(tokens) > 1 {
presentName = strings.TrimSpace(tokens[1])
if presentName == "" {
err = fmt.Errorf("invalid presentation name provided")
return
}
} else {
presentName = secretName
}
return
}
// ParseAddSecret validates secrets passed on the command line
func ParseAddSecret(cmd *cobra.Command, spec *api.ServiceSpec, flagName string) error {
flags := cmd.Flags()
if flags.Changed(flagName) {
secrets, err := flags.GetStringSlice(flagName)
if err != nil {
return err
}
container := spec.Task.GetContainer()
if container == nil {
spec.Task.Runtime = &api.TaskSpec_Container{
Container: &api.ContainerSpec{},
}
}
lookupSecretNames := []string{}
var needSecrets []*api.SecretReference
for _, secret := range secrets {
n, p, err := parseSecretString(secret)
if err != nil {
return err
}
// TODO(diogo): defaults to File targets, but in the future will take different types
secretRef := &api.SecretReference{
SecretName: n,
Target: &api.SecretReference_File{
File: &api.FileTarget{
Name: p,
Mode: 0444,
},
},
}
lookupSecretNames = append(lookupSecretNames, n)
needSecrets = append(needSecrets, secretRef)
}
client, err := common.Dial(cmd)
if err != nil {
return err
}
r, err := client.ListSecrets(common.Context(cmd),
&api.ListSecretsRequest{Filters: &api.ListSecretsRequest_Filters{Names: lookupSecretNames}})
if err != nil {
return err
}
foundSecrets := make(map[string]*api.Secret)
for _, secret := range r.Secrets {
foundSecrets[secret.Spec.Annotations.Name] = secret
}
for _, secretRef := range needSecrets {
secret, ok := foundSecrets[secretRef.SecretName]
if !ok {
return fmt.Errorf("secret not found: %s", secretRef.SecretName)
}
secretRef.SecretID = secret.ID
container.Secrets = append(container.Secrets, secretRef)
}
}
return nil
}
// ParseRemoveSecret removes a set of secrets from the task spec's secret references
func ParseRemoveSecret(cmd *cobra.Command, spec *api.ServiceSpec, flagName string) error {
flags := cmd.Flags()
if flags.Changed(flagName) {
secrets, err := flags.GetStringSlice(flagName)
if err != nil {
return err
}
container := spec.Task.GetContainer()
if container == nil {
return nil
}
wantToDelete := make(map[string]struct{})
for _, secret := range secrets {
n, _, err := parseSecretString(secret)
if err != nil {
return err
}
wantToDelete[n] = struct{}{}
}
secretRefs := []*api.SecretReference{}
for _, secretRef := range container.Secrets {
if _, ok := wantToDelete[secretRef.SecretName]; ok {
continue
}
secretRefs = append(secretRefs, secretRef)
}
container.Secrets = secretRefs
}
return nil
}
|
