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package vm
import (
"errors"
"fmt"
"regexp"
"gitlab.com/gitlab-org/gitlab-runner/executors"
)
type Executor struct {
executors.AbstractExecutor
allowedImages []*regexp.Regexp
}
func (e *Executor) GetBaseName(defaultBaseName string) (string, error) {
imageName := e.Build.GetAllVariables().ExpandValue(e.Build.Image.Name)
// Use default name if no build image specified or name is identical to a default one.
if imageName == "" || imageName == defaultBaseName {
return defaultBaseName, nil
}
if len(e.allowedImages) == 0 {
// Ignore YAML's image if no allowed_images parameter is provided for the sake of backward compatibility.
// And warn user about this.
e.Warningln(fmt.Sprintf(
"No allowed_images configuration found for \"%s\", using image \"%s\"",
e.Build.Image.Name,
defaultBaseName,
))
return defaultBaseName, nil
}
for _, allowedImage := range e.allowedImages {
if allowedImage.MatchString(imageName) {
return imageName, nil
}
}
e.Println()
e.Errorln(fmt.Sprintf("The %q image is not present on list of allowed images", imageName))
for _, allowedImage := range e.allowedImages {
e.Println("-", allowedImage)
}
e.Println()
e.Println("Please check runner's configuration")
return "", errors.New("invalid image")
}
func (e *Executor) ValidateAllowedImages(allowedImages []string) error {
for _, allowedImage := range allowedImages {
re, err := regexp.Compile(allowedImage)
if err != nil {
return fmt.Errorf("invalid regexp pattern in allowed_images parameter: %s", allowedImage)
}
e.allowedImages = append(e.allowedImages, re)
}
return nil
}
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