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servicemanifest.go
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servicemanifest.go
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// Copyright 2020 The PipeCD Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package cloudrun
import (
"fmt"
"os"
"strings"
"google.golang.org/api/run/v1"
"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
"k8s.io/apimachinery/pkg/runtime"
"sigs.k8s.io/yaml"
"github.com/pipe-cd/pipecd/pkg/model"
)
type ServiceManifest struct {
Name string
u *unstructured.Unstructured
}
func (m ServiceManifest) SetRevision(name string) error {
return unstructured.SetNestedField(m.u.Object, name, "spec", "template", "metadata", "name")
}
type RevisionTraffic struct {
RevisionName string `json:"revisionName"`
Percent int `json:"percent"`
}
func (m ServiceManifest) UpdateTraffic(revisions []RevisionTraffic) error {
items := []interface{}{}
for i := range revisions {
out, err := runtime.DefaultUnstructuredConverter.ToUnstructured(&revisions[i])
if err != nil {
return fmt.Errorf("unable to set traffic for object: %w", err)
}
items = append(items, out)
}
return unstructured.SetNestedSlice(m.u.Object, items, "spec", "traffic")
}
func (m ServiceManifest) UpdateAllTraffic(revision string) error {
return m.UpdateTraffic([]RevisionTraffic{
{
RevisionName: revision,
Percent: 100,
},
})
}
func (m ServiceManifest) YamlBytes() ([]byte, error) {
return yaml.Marshal(m.u)
}
func (m ServiceManifest) Labels() map[string]string {
return m.u.GetLabels()
}
func (m ServiceManifest) RevisionLabels() map[string]string {
v, _, _ := unstructured.NestedStringMap(m.u.Object, "spec", "template", "metadata", "labels")
return v
}
func (m ServiceManifest) AppID() (string, bool) {
v := m.Labels()
if v == nil || v[LabelApplication] == "" {
return "", false
}
return v[LabelApplication], true
}
func (m ServiceManifest) AddLabels(labels map[string]string) {
if len(labels) == 0 {
return
}
lbls := m.u.GetLabels()
if lbls == nil {
m.u.SetLabels(labels)
return
}
for k, v := range labels {
lbls[k] = v
}
m.u.SetLabels(lbls)
}
func (m ServiceManifest) AddRevisionLabels(labels map[string]string) error {
if len(labels) == 0 {
return nil
}
fields := []string{"spec", "template", "metadata", "labels"}
lbls, ok, err := unstructured.NestedStringMap(m.u.Object, fields...)
if err != nil {
return err
}
if !ok {
return unstructured.SetNestedStringMap(m.u.Object, labels, fields...)
}
for k, v := range labels {
lbls[k] = v
}
return unstructured.SetNestedStringMap(m.u.Object, lbls, fields...)
}
func (m ServiceManifest) RunService() (*run.Service, error) {
data, err := m.YamlBytes()
if err != nil {
return nil, err
}
var s run.Service
if err := yaml.Unmarshal(data, &s); err != nil {
return nil, err
}
return &s, nil
}
func loadServiceManifest(path string) (ServiceManifest, error) {
data, err := os.ReadFile(path)
if err != nil {
return ServiceManifest{}, err
}
return ParseServiceManifest(data)
}
func ParseServiceManifest(data []byte) (ServiceManifest, error) {
var obj unstructured.Unstructured
if err := yaml.Unmarshal(data, &obj); err != nil {
return ServiceManifest{}, err
}
return ServiceManifest{
Name: obj.GetName(),
u: &obj,
}, nil
}
func DecideRevisionName(sm ServiceManifest, commit string) (string, error) {
tag, err := FindImageTag(sm)
if err != nil {
return "", err
}
tag = strings.ReplaceAll(tag, ".", "")
if len(commit) > 7 {
commit = commit[:7]
}
return fmt.Sprintf("%s-%s-%s", sm.Name, tag, commit), nil
}
func FindImageTag(sm ServiceManifest) (string, error) {
containers, ok, err := unstructured.NestedSlice(sm.u.Object, "spec", "template", "spec", "containers")
if err != nil {
return "", err
}
if !ok || len(containers) == 0 {
return "", fmt.Errorf("spec.template.spec.containers was missing")
}
container, err := runtime.DefaultUnstructuredConverter.ToUnstructured(&containers[0])
if err != nil {
return "", fmt.Errorf("invalid container format")
}
image, ok, err := unstructured.NestedString(container, "image")
if err != nil {
return "", err
}
if !ok || image == "" {
return "", fmt.Errorf("image was missing")
}
_, tag := parseContainerImage(image)
return tag, nil
}
func parseContainerImage(image string) (name, tag string) {
parts := strings.Split(image, ":")
if len(parts) == 2 {
tag = parts[1]
}
paths := strings.Split(parts[0], "/")
name = paths[len(paths)-1]
return
}
func FindArtifactVersions(sm ServiceManifest) ([]*model.ArtifactVersion, error) {
containers, ok, err := unstructured.NestedSlice(sm.u.Object, "spec", "template", "spec", "containers")
if err != nil {
return nil, err
}
if !ok || len(containers) == 0 {
return nil, fmt.Errorf("spec.template.spec.containers was missing")
}
container, err := runtime.DefaultUnstructuredConverter.ToUnstructured(&containers[0])
if err != nil {
return nil, fmt.Errorf("invalid container format")
}
image, ok, err := unstructured.NestedString(container, "image")
if err != nil {
return nil, err
}
if !ok || image == "" {
return nil, fmt.Errorf("image was missing")
}
name, tag := parseContainerImage(image)
return []*model.ArtifactVersion{
{
Kind: model.ArtifactVersion_CONTAINER_IMAGE,
Version: tag,
Name: name,
Url: image,
},
}, nil
}