package kubernetes import ( "io/ioutil" "path/filepath" "sort" "github.com/docker/cli/kubernetes/compose/v1beta2" "github.com/docker/cli/kubernetes/labels" apiv1 "k8s.io/api/core/v1" metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" corev1 "k8s.io/client-go/kubernetes/typed/core/v1" ) // stack is the main type used by stack commands so they remain independent from kubernetes compose component version. type stack struct { name string namespace string composeFile string spec *v1beta2.StackSpec } // getServices returns all the stack service names, sorted lexicographically func (s *stack) getServices() []string { services := make([]string, len(s.spec.Services)) for i, service := range s.spec.Services { services[i] = service.Name } sort.Strings(services) return services } // createFileBasedConfigMaps creates a Kubernetes ConfigMap for each Compose global file-based config. func (s *stack) createFileBasedConfigMaps(configMaps corev1.ConfigMapInterface) error { for name, config := range s.spec.Configs { if config.File == "" { continue } fileName := filepath.Base(config.File) content, err := ioutil.ReadFile(config.File) if err != nil { return err } if _, err := configMaps.Create(toConfigMap(s.name, name, fileName, content)); err != nil { return err } } return nil } // toConfigMap converts a Compose Config to a Kube ConfigMap. func toConfigMap(stackName, name, key string, content []byte) *apiv1.ConfigMap { return &apiv1.ConfigMap{ TypeMeta: metav1.TypeMeta{ Kind: "ConfigMap", APIVersion: "v1", }, ObjectMeta: metav1.ObjectMeta{ Name: name, Labels: map[string]string{ labels.ForStackName: stackName, }, }, Data: map[string]string{ key: string(content), }, } } // createFileBasedSecrets creates a Kubernetes Secret for each Compose global file-based secret. func (s *stack) createFileBasedSecrets(secrets corev1.SecretInterface) error { for name, secret := range s.spec.Secrets { if secret.File == "" { continue } fileName := filepath.Base(secret.File) content, err := ioutil.ReadFile(secret.File) if err != nil { return err } if _, err := secrets.Create(toSecret(s.name, name, fileName, content)); err != nil { return err } } return nil } // toSecret converts a Compose Secret to a Kube Secret. func toSecret(stackName, name, key string, content []byte) *apiv1.Secret { return &apiv1.Secret{ ObjectMeta: metav1.ObjectMeta{ Name: name, Labels: map[string]string{ labels.ForStackName: stackName, }, }, Data: map[string][]byte{ key: content, }, } }