Add lock and unlock gocat Slack commands

.github/workflows/test.yml

@@ -15,6 +15,8 @@ jobs:
         uses: actions/checkout@v4
         with:
           fetch-depth: 0
+      - name: Create kind cluster
+        uses: helm/kind-action@v1
       - name: Set up Go
         uses: actions/setup-go@v4
         with:

bot.go

@@ -5,6 +5,7 @@ import (
 	"log"
 	"net/http"
 	"os"
+	"sync"
 
 	"github.com/slack-go/slack"
 )
@@ -19,7 +20,7 @@ func main() {
 		config.SlackOAuthToken,
 		slack.OptionLog(log.New(os.Stdout, "slack-bot: ", log.Lshortfile|log.LstdFlags)),
 	)
-	github := CreateGitHubInstance(config.GitHubAccessToken, config.ManifestRepositoryOrg, config.ManifestRepositoryName, config.GitHubDefaultBranch)
+	github := CreateGitHubInstance("", config.GitHubAccessToken, config.ManifestRepositoryOrg, config.ManifestRepositoryName, config.GitHubDefaultBranch)
 	git := CreateGitOperatorInstance(
 		config.GitHubUserName,
 		config.GitHubAccessToken,
@@ -44,6 +45,7 @@ func main() {
 		projectList:       &projectList,
 		userList:          &userList,
 		interactorFactory: &interactorFactory,
+		mu:                &sync.Mutex{},
 	})
 	http.Handle("/interaction", interactionHandler{
 		verificationToken: config.SlackVerificationToken,

deploy/configmap.go

@@ -72,7 +72,7 @@ func (c *Coordinator) getOrCreateConfigMap(ctx context.Context) (*corev1.ConfigM
 
 // getConfigMap creates a Kubernetes API client, and use it to retrieve the ConfigMap.
 func (c *Coordinator) getConfigMap(ctx context.Context) (*corev1.ConfigMap, error) {
-	clientset, err := c.kubernetesClientSet()
+	clientset, err := c.ClientSet()
 	if err != nil {
 		return nil, err
 	}
@@ -90,7 +90,7 @@ func (c *Coordinator) getConfigMap(ctx context.Context) (*corev1.ConfigMap, erro
 }
 
 func (c *Coordinator) createConfigMap(ctx context.Context) (*corev1.ConfigMap, error) {
-	clientset, err := c.kubernetesClientSet()
+	clientset, err := c.ClientSet()
 	if err != nil {
 		return nil, err
 	}
@@ -114,7 +114,7 @@ func (c *Coordinator) createConfigMap(ctx context.Context) (*corev1.ConfigMap, e
 }
 
 func (c *Coordinator) updateConfigMap(ctx context.Context, configMap *corev1.ConfigMap) (*corev1.ConfigMap, error) {
-	clientset, err := c.kubernetesClientSet()
+	clientset, err := c.ClientSet()
 	if err != nil {
 		return nil, err
 	}

deploy/kubernetes.go

@@ -8,10 +8,38 @@ import (
 	"k8s.io/client-go/tools/clientcmd"
 )
 
+// Kubernetes is a helper struct that provides a way to create and cache a Kubernetes API client.
+// The client is created using the KUBECONFIG file if exists, or the in-cluster configuration.
+// The client is cached to avoid creating multiple clients.
+//
+// Usage:
+//
+//	k := Kubernetes{}
+//	clientset, err := k.ClientSet()
+//	if err != nil {
+//	  return err
+//	}
+//	// Use the clientset
+//
+//	// Or you can embed Kubernetes in your struct:
+//	type MyStruct struct {
+//	  Kubernetes
+//	}
+//	func (m *MyStruct) MyMethod() error {
+//	  clientset, err := m.ClientSet()
+//	  if err != nil {
+//	    return err
+//	  }
+//	  // Use the clientset
+//	}
+type Kubernetes struct {
+	clientset clientset.Interface
+}
+
 // kubeconfigPath returns the path to the KUBECONFIG file,
 // which is either specified by the KUBECONFIG environment variable,
 // or the default path ~/.kube/config.
-func (c *Coordinator) kubeconfigPath() string {
+func (c *Kubernetes) kubeconfigPath() string {
 	kubeconfig := clientcmd.NewDefaultClientConfigLoadingRules().GetDefaultFilename()
 	if path := os.Getenv("KUBECONFIG"); path != "" {
 		kubeconfig = path
@@ -22,7 +50,7 @@ func (c *Coordinator) kubeconfigPath() string {
 
 // kubernetesClientSet creates a Kubernetes API client
 // that uses either the KUBECONFIG file if exists, or the in-cluster configuration.
-func (c *Coordinator) kubernetesClientSet() (clientset.Interface, error) {
+func (c *Kubernetes) ClientSet() (clientset.Interface, error) {
 	if c.clientset != nil {
 		return c.clientset, nil
 	}

deploy/lock.go

@@ -6,7 +6,6 @@ import (
 
 	kerrors "k8s.io/apimachinery/pkg/api/errors"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
-	clientset "k8s.io/client-go/kubernetes"
 )
 
 // Coordinator provides a way to lock and unlock deployments made via gocat.
@@ -29,7 +28,7 @@ type Coordinator struct {
 	// ConfigMapName is the name of the ConfigMap.
 	ConfigMapName string
 
-	clientset clientset.Interface
+	Kubernetes
 }
 
 func NewCoordinator(ns, configMap string) *Coordinator {

deploy/lock_test.go

@@ -6,6 +6,8 @@ import (
 	"os"
 	"testing"
 
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+
 	"github.com/stretchr/testify/require"
 )
 
@@ -17,6 +19,13 @@ func TestLockUnlock(t *testing.T) {
 	}
 
 	c := NewCoordinator("default", "gocat-test")
+	defer func() {
+		if c, _ := c.ClientSet(); c != nil {
+			if err := c.CoreV1().ConfigMaps("default").Delete(context.Background(), "gocat-test", metav1.DeleteOptions{}); err != nil {
+				t.Log(err)
+			}
+		}
+	}()
 
 	prevKubeconfig := os.Getenv("KUBECONFIG")
 	os.Setenv("KUBECONFIG", kubeconfigPath)

github.go

@@ -36,13 +36,18 @@ type GitHubInput struct {
 	Branch     string
 }
 
-func CreateGitHubInstance(token, org, repo, defaultBranch string) GitHub {
+func CreateGitHubInstance(url, token, org, repo, defaultBranch string) GitHub {
 	src := oauth2.StaticTokenSource(
 		&oauth2.Token{AccessToken: token},
 	)
 	httpClient := oauth2.NewClient(context.Background(), src)
 
-	client := githubv4.NewClient(httpClient)
+	var client *githubv4.Client
+	if url != "" {
+		client = githubv4.NewEnterpriseClient(url, httpClient)
+	} else {
+		client = githubv4.NewClient(httpClient)
+	}
 	return GitHub{*client, httpClient, org, repo, defaultBranch}
 }
 

project.go

@@ -34,6 +34,10 @@ type DeployPhase struct {
 	Destination   Destination `yaml:"destination"`
 }
 
+func (p DeployPhase) None() bool {
+	return p.Name == ""
+}
+
 type DeployProject struct {
 	// ID is the name of the configmap that defines the project.
 	ID                  string

slack.go

@@ -2,16 +2,20 @@ package main
 
 import (
 	"bytes"
+	"context"
 	"encoding/json"
+	"errors"
 	"fmt"
 	"log"
 	"net/http"
 	"regexp"
 	"strconv"
 	"strings"
+	"sync"
 
 	"github.com/slack-go/slack"
 	"github.com/slack-go/slack/slackevents"
+	"github.com/zaiminc/gocat/deploy"
 	"github.com/zaiminc/gocat/slackcmd"
 )
 
@@ -23,6 +27,9 @@ type SlackListener struct {
 	projectList       *ProjectList
 	userList          *UserList
 	interactorFactory *InteractorFactory
+
+	coordinator *deploy.Coordinator
+	mu          *sync.Mutex
 }
 
 func (s SlackListener) ServeHTTP(w http.ResponseWriter, r *http.Request) {
@@ -182,8 +189,7 @@ func (s *SlackListener) handleMessageEvent(ev *slackevents.AppMentionEvent) erro
 	}
 	if cmd, _ := slackcmd.Parse(ev.Text); cmd != nil {
 		log.Printf("[INFO] %s command is Called", cmd.Name())
-		// TODO run the command and post the result to slack
-		return nil
+		return s.runCommand(cmd, ev.User, ev.Channel)
 	}
 	return nil
 }
@@ -247,6 +253,101 @@ func createDeployButtonSection(pj DeployProject, phaseName string) *slack.Sectio
 	return section
 }
 
+// runCommand runs the given command.
+//
+// triggeredBy is the ID of the Slack user who triggered the command,
+// and replyIn is the ID of the Slack channel to reply to.
+func (s *SlackListener) runCommand(cmd slackcmd.Command, triggeredBy string, replyIn string) error {
+	var msgOpt slack.MsgOption
+
+	switch cmd := cmd.(type) {
+	case *slackcmd.Lock:
+		msgOpt = s.lock(cmd, triggeredBy, replyIn)
+	case *slackcmd.Unlock:
+		msgOpt = s.unlock(cmd, triggeredBy, replyIn, false)
+	default:
+		panic("unreachable")
+	}
+
+	if _, _, err := s.client.PostMessage(replyIn, msgOpt); err != nil {
+		log.Println("[ERROR] ", err)
+	}
+
+	return nil
+}
+
+// lock locks the given project and environment, and replies to the given channel.
+func (s *SlackListener) lock(cmd *slackcmd.Lock, triggeredBy string, replyIn string) slack.MsgOption {
+	if err := s.validateProjectEnvUser(cmd.Project, cmd.Env, triggeredBy, replyIn); err != nil {
+		return s.errorMessage(err.Error())
+	}
+
+	if err := s.getOrCreateCoordinator().Lock(context.Background(), cmd.Project, cmd.Env, triggeredBy, cmd.Reason); err != nil {
+		return s.errorMessage(err.Error())
+	}
+
+	return s.infoMessage(fmt.Sprintf("Locked %s %s", cmd.Project, cmd.Env))
+}
+
+// unlock unlocks the given project and environment, and replies to the given channel.
+func (s *SlackListener) unlock(cmd *slackcmd.Unlock, triggeredBy string, replyIn string, force bool) slack.MsgOption {
+	if err := s.validateProjectEnvUser(cmd.Project, cmd.Env, triggeredBy, replyIn); err != nil {
+		return s.errorMessage(err.Error())
+	}
+
+	if err := s.getOrCreateCoordinator().Unlock(context.Background(), cmd.Project, cmd.Env, triggeredBy, force); err != nil {
+		return s.errorMessage(err.Error())
+	}
+
+	return s.infoMessage(fmt.Sprintf("Unlocked %s %s", cmd.Project, cmd.Env))
+}
+
+func (s *SlackListener) validateProjectEnvUser(projectID, env, userID, replyIn string) error {
+	pj, err := s.projectList.FindByAlias(projectID)
+	if err != nil {
+		log.Println("[ERROR] ", err)
+		if _, _, err := s.client.PostMessage(replyIn, s.errorMessage(err.Error())); err != nil {
+			log.Println("[ERROR] ", err)
+		}
+		return fmt.Errorf("find by alias %q: %w", projectID, err)
+	}
+
+	if phase := pj.FindPhase(env); phase.None() {
+		err = fmt.Errorf("phase %s is not found", env)
+		log.Println("[ERROR] ", err)
+		if _, _, err := s.client.PostMessage(replyIn, s.errorMessage(err.Error())); err != nil {
+			log.Println("[ERROR] ", err)
+		}
+		return fmt.Errorf("find phase %q: %w", env, err)
+	}
+
+	if user := s.userList.FindBySlackUserID(userID); !user.IsDeveloper() {
+		err = errors.New("you are not allowed to lock this project")
+		log.Println("[ERROR] ", err)
+		if _, _, err := s.client.PostMessage(replyIn, s.errorMessage(err.Error())); err != nil {
+			log.Println("[ERROR] ", err)
+		}
+		return fmt.Errorf("find by slack user id %q: %w", userID, err)
+	}
+
+	return nil
+}
+
+func (s *SlackListener) getOrCreateCoordinator() *deploy.Coordinator {
+	s.mu.Lock()
+	defer s.mu.Unlock()
+	if s.coordinator == nil {
+		s.coordinator = deploy.NewCoordinator("gocat", "deploylocks")
+	}
+	return s.coordinator
+}
+
+func (s *SlackListener) infoMessage(message string) slack.MsgOption {
+	txt := slack.NewTextBlockObject("mrkdwn", message, false, false)
+	section := slack.NewSectionBlock(txt, nil, nil)
+	return slack.MsgOptionBlocks(section)
+}
+
 func (s *SlackListener) errorMessage(message string) slack.MsgOption {
 	txt := slack.NewTextBlockObject("mrkdwn", message, false, false)
 	section := slack.NewSectionBlock(txt, nil, nil)