func (c *AppConfig) validate() (app.Environment, app.Environment, error) {
env, err := app.ParseAndCombineEnvironment(c.Environment, c.EnvironmentFiles, c.In, func(key, file string) error {
if file == "" {
fmt.Fprintf(c.ErrOut, "warning: Environment variable %q was overwritten\n", key)
} else {
fmt.Fprintf(c.ErrOut, "warning: Environment variable %q already defined, ignoring value from file %q\n", key, file)
}
return nil
})
if err != nil {
return nil, nil, err
}
params, err := app.ParseAndCombineEnvironment(c.TemplateParameters, c.TemplateParameterFiles, c.In, func(key, file string) error {
if file == "" {
fmt.Fprintf(c.ErrOut, "warning: Template parameter %q was overwritten\n", key)
} else {
fmt.Fprintf(c.ErrOut, "warning: Template parameter %q already defined, ignoring value from file %q\n", key, file)
}
return nil
})
if err != nil {
return nil, nil, err
}
return env, params, nil
}
// RunProcess contains all the necessary functionality for the OpenShift cli process command
func RunProcess(f *clientcmd.Factory, in io.Reader, out, errout io.Writer, cmd *cobra.Command, args []string) error {
templateName, templateParams := "", []string{}
for _, s := range args {
isValue := strings.Contains(s, "=")
switch {
case isValue:
templateParams = append(templateParams, s)
case !isValue && len(templateName) == 0:
templateName = s
case !isValue && len(templateName) > 0:
return kcmdutil.UsageError(cmd, "template name must be specified only once: %s", s)
}
}
if cmd.Flag("value").Changed || cmd.Flag("param").Changed {
flagValues := getFlagStringArray(cmd, "param")
cmdutil.WarnAboutCommaSeparation(errout, flagValues, "--param")
templateParams = append(templateParams, flagValues...)
}
duplicatedKeys := sets.NewString()
params, paramErr := app.ParseAndCombineEnvironment(templateParams, getFlagStringArray(cmd, "param-file"), in, func(key, file string) error {
if file == "" {
duplicatedKeys.Insert(key)
} else {
fmt.Fprintf(errout, "warning: Template parameter %q already defined, ignoring value from file %q", key, file)
}
return nil
})
if len(duplicatedKeys) != 0 {
return kcmdutil.UsageError(cmd, fmt.Sprintf("The following parameters were provided more than once: %s", strings.Join(duplicatedKeys.List(), ", ")))
}
filename := kcmdutil.GetFlagString(cmd, "filename")
if len(templateName) == 0 && len(filename) == 0 {
return kcmdutil.UsageError(cmd, "Must pass a filename or name of stored template")
}
if kcmdutil.GetFlagBool(cmd, "parameters") {
for _, flag := range []string{"value", "param", "labels", "output", "output-version", "raw", "template"} {
if f := cmd.Flags().Lookup(flag); f != nil && f.Changed {
return kcmdutil.UsageError(cmd, "The --parameters flag does not process the template, can't be used with --%v", flag)
}
}
}
namespace, explicit, err := f.DefaultNamespace()
if err != nil {
return err
}
mapper, typer := f.Object(false)
client, _, _, err := f.Clients()
if err != nil {
return err
}
var (
objects []runtime.Object
infos []*resource.Info
)
mapping, err := mapper.RESTMapping(templateapi.Kind("Template"))
if err != nil {
return err
}
// When templateName is not empty, then we fetch the template from the
// server, otherwise we require to set the `-f` parameter.
if len(templateName) > 0 {
var (
storedTemplate, rs string
sourceNamespace string
ok bool
)
sourceNamespace, rs, storedTemplate, ok = parseNamespaceResourceName(templateName, namespace)
if !ok {
return fmt.Errorf("invalid argument %q", templateName)
}
if len(rs) > 0 && (rs != "template" && rs != "templates") {
return fmt.Errorf("unable to process invalid resource %q", rs)
}
if len(storedTemplate) == 0 {
return fmt.Errorf("invalid value syntax %q", templateName)
}
templateObj, err := client.Templates(sourceNamespace).Get(storedTemplate)
if err != nil {
if errors.IsNotFound(err) {
return fmt.Errorf("template %q could not be found", storedTemplate)
}
return err
}
templateObj.CreationTimestamp = unversioned.Now()
infos = append(infos, &resource.Info{Object: templateObj})
} else {
infos, err = resource.NewBuilder(mapper, typer, resource.ClientMapperFunc(f.ClientForMapping), kapi.Codecs.UniversalDecoder()).
NamespaceParam(namespace).RequireNamespace().
FilenameParam(explicit, false, filename).
Do().
Infos()
if err != nil {
return err
}
}
if len(infos) > 1 {
// in order to run validation on the input given to us by a user, we only support the processing
// of one template in a list. For instance, we want to be able to fail when a user does not give
// a parameter that the template wants or when they give a parameter the template doesn't need,
// as this may indicate that they have mis-used `oc process`. This is much less complicated when
// we process at most one template.
fmt.Fprintf(out, "%d input templates found, but only the first will be processed", len(infos))
}
obj, ok := infos[0].Object.(*templateapi.Template)
if !ok {
sourceName := filename
if len(templateName) > 0 {
sourceName = namespace + "/" + templateName
}
return fmt.Errorf("unable to parse %q, not a valid Template but %s\n", sourceName, reflect.TypeOf(infos[0].Object))
}
// If 'parameters' flag is set it does not do processing but only print
// the template parameters to console for inspection.
if kcmdutil.GetFlagBool(cmd, "parameters") {
return describe.PrintTemplateParameters(obj.Parameters, out)
}
if label := kcmdutil.GetFlagString(cmd, "labels"); len(label) > 0 {
lbl, err := kubectl.ParseLabels(label)
if err != nil {
return fmt.Errorf("error parsing labels: %v\n", err)
}
if obj.ObjectLabels == nil {
obj.ObjectLabels = make(map[string]string)
}
for key, value := range lbl {
obj.ObjectLabels[key] = value
}
}
// Raise parameter parsing errors here after we had chance to return UsageErrors first
if paramErr != nil {
return paramErr
}
if errs := injectUserVars(params, obj); errs != nil {
return kerrors.NewAggregate(errs)
}
resultObj, err := client.TemplateConfigs(namespace).Create(obj)
if err != nil {
return fmt.Errorf("error processing the template %q: %v\n", obj.Name, err)
}
outputFormat := kcmdutil.GetFlagString(cmd, "output")
if outputFormat == "describe" {
if s, err := (&describe.TemplateDescriber{
MetadataAccessor: meta.NewAccessor(),
ObjectTyper: kapi.Scheme,
ObjectDescriber: nil,
}).DescribeTemplate(resultObj); err != nil {
return fmt.Errorf("error describing %q: %v\n", obj.Name, err)
} else {
_, err := fmt.Fprintf(out, s)
return err
}
}
objects = append(objects, resultObj.Objects...)
p, _, err := kcmdutil.PrinterForCommand(cmd)
if err != nil {
return err
}
gv := mapping.GroupVersionKind.GroupVersion()
version, err := kcmdutil.OutputVersion(cmd, &gv)
if err != nil {
return err
}
p = kubectl.NewVersionedPrinter(p, kapi.Scheme, version)
// use generic output
if kcmdutil.GetFlagBool(cmd, "raw") {
for i := range objects {
p.PrintObj(objects[i], out)
}
return nil
}
return p.PrintObj(&kapi.List{
ListMeta: unversioned.ListMeta{},
Items: objects,
}, out)
}
