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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 configs in the format CONFIG_NAME:TARGET_NAME
func parseConfigString(configString string) (configName, presentName string, err error) {
tokens := strings.Split(configString, ":")
configName = strings.TrimSpace(tokens[0])
if configName == "" {
err = fmt.Errorf("invalid config name provided")
return
}
if len(tokens) > 1 {
presentName = strings.TrimSpace(tokens[1])
if presentName == "" {
err = fmt.Errorf("invalid presentation name provided")
return
}
} else {
presentName = configName
}
return
}
// ParseAddConfig validates configs passed on the command line
func ParseAddConfig(cmd *cobra.Command, spec *api.ServiceSpec, flagName string) error {
flags := cmd.Flags()
if flags.Changed(flagName) {
configs, 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{},
}
}
lookupConfigNames := []string{}
var needConfigs []*api.ConfigReference
for _, config := range configs {
n, p, err := parseConfigString(config)
if err != nil {
return err
}
// TODO(diogo): defaults to File targets, but in the future will take different types
configRef := &api.ConfigReference{
ConfigName: n,
Target: &api.ConfigReference_File{
File: &api.FileTarget{
Name: p,
Mode: 0444,
},
},
}
lookupConfigNames = append(lookupConfigNames, n)
needConfigs = append(needConfigs, configRef)
}
client, err := common.Dial(cmd)
if err != nil {
return err
}
r, err := client.ListConfigs(common.Context(cmd),
&api.ListConfigsRequest{Filters: &api.ListConfigsRequest_Filters{Names: lookupConfigNames}})
if err != nil {
return err
}
foundConfigs := make(map[string]*api.Config)
for _, config := range r.Configs {
foundConfigs[config.Spec.Annotations.Name] = config
}
for _, configRef := range needConfigs {
config, ok := foundConfigs[configRef.ConfigName]
if !ok {
return fmt.Errorf("config not found: %s", configRef.ConfigName)
}
configRef.ConfigID = config.ID
container.Configs = append(container.Configs, configRef)
}
}
return nil
}
// ParseRemoveConfig removes a set of configs from the task spec's config references
func ParseRemoveConfig(cmd *cobra.Command, spec *api.ServiceSpec, flagName string) error {
flags := cmd.Flags()
if flags.Changed(flagName) {
configs, err := flags.GetStringSlice(flagName)
if err != nil {
return err
}
container := spec.Task.GetContainer()
if container == nil {
return nil
}
wantToDelete := make(map[string]struct{})
for _, config := range configs {
n, _, err := parseConfigString(config)
if err != nil {
return err
}
wantToDelete[n] = struct{}{}
}
configRefs := []*api.ConfigReference{}
for _, configRef := range container.Configs {
if _, ok := wantToDelete[configRef.ConfigName]; ok {
continue
}
configRefs = append(configRefs, configRef)
}
container.Configs = configRefs
}
return nil
}
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