Kubernetesでの依存関係管理

// RepoConfig is the Schema for the repoconfigs API
type RepoConfig struct {
	metav1.TypeMeta `json:",inline"`

	// metadata is a standard object metadata
	// +optional
	metav1.ObjectMeta `json:"metadata,omitempty,omitzero"`

	// spec defines the desired state of RepoConfig
	// +required
	Spec RepoConfigSpec `json:"spec"`

	// status defines the observed state of RepoConfig
	// +optional
	Status RepoConfigStatus `json:"status,omitempty,omitzero"`
}

apiVersion: workflows.elastic.co/v1
kind: RepoConfig
metadata:
  generation: 3
  name: elastic-test-repo
  namespace: dependency-management-operator
spec:
  owner: group:my-team
  renovate:
    config:
      resourceGroup: SMALL
      runFrequency: 4h
    enabled: true
  repository: elastic/test-repo

func (r *ParentReconciler) reconcileSubResources(ctx context.Context, req ctrl.Request, parent *workflowsv1.Parent) error {
	logger := logf.FromContext(ctx)
	logger.Info("Reconcile SubResources for Parent", "name", req.NamespacedName)
	wfSet := workflowsettings.WorkflowSettings{
		RunFrequency:   parent.Spec.RunFrequency,
		ResourceGroups: "parent",
	}

	cfMngr := resources.NewConfigMapManager(r.Client, r.Scheme, r.OperatorConfig.ParentNamespace)
	err := cfMngr.CreateOrUpdateSyncMutexConfigmap(ctx, fmt.Sprintf("%s%s", r.OperatorConfig.ResourcesPrefix, r.OperatorConfig.SyncMutexCfgMapName), strings.TrimPrefix(parent.Spec.Repository, "elastic/"), r.OperatorConfig.SemaphoreConcurrencyLimit)

	wfMngr := resources.NewArgoWorkflowManager(r.Client,
		r.Scheme,
		curateResourceName(
			strings.ReplaceAll(parent.Spec.Repository, "/", "-"),
		),
		parent.Namespace,
		"parent-workflow",
		false).
		WithOrganization(r.OperatorConfig.GitHubOrg).
		WithRepoName(parent.Spec.Repository).
		Init(true, true).
		WithPrefix(r.OperatorConfig.ResourcesPrefix).
		WithWfTemplateName(r.OperatorConfig.ParentWorkflowTemplate).
		WithResources(wfSet.GetResourceCategory()).
		WithSchedule(wfSet.GetCronSchedule()).
		WithImagePullSecrets([]corev1.LocalObjectReference{{
			Name: r.OperatorConfig.WorkflowImagePullSecrets,
		}}).
		AddArgument(true, true, "extra_cli_args").
		SetArgument(true, false, "extra_cli_args", "none").
		AddTemplate(resources.NewParentDAGTemplateInstance()).
		AddTemplate(resources.NewWorkflowsTemplateInstance("check-child-workflows", r.OperatorConfig.WorkflowImagePullPolicy, r.OperatorConfig.WorkflowNodeSelector)).
		AddTemplate(resources.NewWorkflowsTemplateInstance("security", r.OperatorConfig.WorkflowImagePullPolicy, r.OperatorConfig.WorkflowNodeSelector)).
		AddTemplate(resources.NewWorkflowsTemplateInstance("submit-child-workflow", r.OperatorConfig.WorkflowImagePullPolicy, r.OperatorConfig.WorkflowNodeSelector))
	wfMngr.OverWriteCommand("submit-child-workflow", r.OperatorConfig.ChildNamespace)
	wfMngr.OverwriteWfTemplateName("parent-wftmpl")
	wfMngr.AddSynchronization(fmt.Sprintf("%s%s", r.OperatorConfig.ResourcesPrefix, r.OperatorConfig.SyncMutexCfgMapName), "{{workflow.parameters.repo_name}}")
	err = wfMngr.CreateOrUpdateCronWorkflow(ctx)
	if err != nil {
		return fmt.Errorf("failed to create or update cron workflow: %w", err)
	}
	err = wfMngr.CreateOrUpdateWorkflowTemplate(ctx)
	if err != nil {
		return fmt.Errorf("failed to create or update workflow template: %w", err)
	}
	return nil

func (r *ChildReconciler) reconcileSubResources(ctx context.Context, req ctrl.Request, child *workflowsv1.Child) error {
	logger := logf.FromContext(ctx)
	logger.Info("Reconcile SubResources for Child", "name", req.NamespacedName)
	wfSet := workflowsettings.WorkflowSettings{
		ResourceGroups: child.Spec.ResourceCategory,
	}
	wfMngr := resources.NewArgoWorkflowManager(r.Client,
		r.Scheme,
		curateResourceName(
			strings.ReplaceAll(child.Spec.Repository, "/", "-"),
		),
		child.Namespace,
		"runner",
		true).
		Init(false, true). // only manage workflow template
		WithPrefix(r.OperatorConfig.ResourcesPrefix).
		WithSuffix("-child-wftmpl").
		WithRepoName(child.Spec.Repository).
		WithOrganization(r.OperatorConfig.GitHubOrg).
		WithResources(wfSet.GetResourceCategory()). // will override resources of presets if set
		WithImagePullSecrets([]corev1.LocalObjectReference{{
			Name: r.OperatorConfig.WorkflowImagePullSecrets,
		}}).
		AddTemplate(resources.NewWorkflowsTemplateInstance("runner", r.OperatorConfig.WorkflowImagePullPolicy, r.OperatorConfig.WorkflowNodeSelector)).
		AddArgument(false, true, "repo_full_name").
		AddArgument(false, true, "repo_name").
		AddArgument(false, true, "encrypted_token").
		AddArgument(false, true, "extra_cli_args")
	wfMngr.OverWriteCommand("runner", r.OperatorConfig.ChildNamespace)
	err := wfMngr.CreateOrUpdateWorkflowTemplate(ctx)
	if err != nil {
		return fmt.Errorf("failed to create or update workflow template: %w", err)
	}
	return nil
}

// ValidateRequestMethod checks if the request method is POST.
func ValidateRequestMethod(r *http.Request) error {
	if r.Method != http.MethodPost {
		return fmt.Errorf("method not allowed, only POST is accepted")
	}
	return nil
}

// ValidateRequiredHeaders checks for required GitHub headers.
func ValidateRequiredHeaders(r *http.Request) error {
	eventType := r.Header.Get("X-GitHub-Event")
	deliveryID := r.Header.Get("X-GitHub-Delivery")
	signature := r.Header.Get("X-Hub-Signature-256")
	if eventType == "" || deliveryID == "" || signature == "" {
		return fmt.Errorf("missing required GitHub headers")
	}
	return nil
}

// ValidateUserAgent checks that the User-Agent header starts with GitHub-Hookshot/
func ValidateUserAgent(r *http.Request) error {
	userAgent := r.Header.Get("User-Agent")
	if !strings.HasPrefix(userAgent, "GitHub-Hookshot/") {
		return fmt.Errorf("invalid User-Agent")
	}
	return nil
}

// ValidateSignature verifies the GitHub webhook signature.
func ValidateSignature(r *http.Request, secret string) ([]byte, error) {
	payload, err := GitHub.ValidatePayload(r, []byte(secret))
	if err != nil {
		return nil, fmt.Errorf("invalid GitHub signature: %w", err)
	}
	return payload, nil
}

// ValidateAllowedOwner checks if the organization login is in the allowed organizations list.
func ValidateAllowedOwner(payload []byte, allowedGitHubOrganizations []string) (string, error) {
	var orgLogin string
	var payloadMap map[string]any
	if err := json.Unmarshal(payload, &payloadMap); err == nil {
		if orgObj, ok := payloadMap["organization"].(map[string]any); ok {
			if login, ok := orgObj["login"].(string); ok {
				orgLogin = login
			} else if name, ok := orgObj["name"].(string); ok {
				orgLogin = name
			}
		}
	}
	if !slices.Contains(allowedGitHubOrganizations, orgLogin) {
		return orgLogin, fmt.Errorf("organization login not allowed")
	}
	return orgLogin, nil
}

	// Map eventType to Argo `EventSource` path
	var endpoint string
	switch eventType {
	case "push":
		endpoint = "/push"
	case "issues":
		endpoint = "/issues"
	case "pull_request":
		endpoint = "/pull-requests"
	default:
		slog.Info("Ignoring unhandled event type", "event_type", eventType, "delivery_id", deliveryID)
		w.WriteHeader(http.StatusOK)
		_, _ = w.Write([]byte("ok"))
		return
	}
	forwardURL := h.config.ArgoEventSourceForwardURL + endpoint

apiVersion: argoproj.io/v1alpha1
kind: Sensor
metadata:
  name: {{ .Values.sensors.packageUpdateOnDefaultBranch.name }}
  namespace: {{ .Release.Namespace }}
spec:
  eventBusName: {{ .Values.eventBus.name }}

script: |
          local e = event
          if not e or not e.body or not e.body.repository then
            return false
          end

          -- e.g., "refs/heads/main"
          local ref = e.body.ref
          local default_branch = e.body.repository.default_branch
          if not ref or not default_branch then
            return false
          end

          local expected = "refs/heads/" .. default_branch
          if ref ~= expected then
            return false
          end

        {{- if .Values.sensors.packageUpdateOnDefaultBranch.packageFiles }}
          patterns = { {{- range $i, $f := .Values.sensors.packageUpdateOnDefaultBranch.packageFiles }}{{ if $i }}, {{ end }}"{{ $f }}"{{- end }} }
        {{- end }}

          local function anyMatch(path)
            if type(path) ~= "string" then return false end
            for _, pat in ipairs(patterns) do
              -- match filename at repo root, or anywhere under subdirs
              if path:match(pat) or path:match(".+/" .. pat) then
                return true
              end
            end
            return false
          end

          local function filesContainPackage(paths)
            if type(paths) ~= "table" then return false end
            for _, p in ipairs(paths) do
              if anyMatch(p) then return true end
            end
            return false
          end

          -- Inspect all commits (GitHub includes added/modified/removed lists)
          local commits = e.body.commits
          if type(commits) ~= "table" then
            -- Fallback: some payloads include only head_commit
            commits = {}
            if type(e.body.head_commit) == "table" then
              table.insert(commits, e.body.head_commit)
            end
          end

          for _, c in ipairs(commits) do
            if filesContainPackage(c.added) or filesContainPackage(c.modified) or filesContainPackage(c.removed) then
              return true
            end
          end

          return false

repoMap := make(map[string]map[string]interface{})
			for i := range entities {
				entity := &entities[i]
				if entity.Spec.Type != "GitHub-repository" {
					continue
				}

				implRaw, err := json.Marshal(entity.Spec.Implementation)
				if err != nil {
					logger.Error("Failed to marshal implementation", "error", err)
					continue
				}

				var implMap map[string]interface{}
				err = json.Unmarshal(implRaw, &implMap)
				if err != nil {
					logger.Error("Failed to unmarshal implementation map", "error", err)
					continue
				}
				var repoName string
				if specMap, ok := implMap["spec"].(map[string]interface{}); ok {
					if repo, ok := specMap["repository"].(string); ok {
						repoName = repo
					}
				}
				if repoName == "" {
					continue
				}

				var workflowsRaw []byte
				if v, ok := implMap["spec"].(map[string]interface{}); ok {
					if r, ok := v["renovate"]; ok {
						workflowsRaw, _ = json.Marshal(r)
					} else {
						workflowsRaw = []byte(`{}`)
					}
				} else {
					workflowsRaw = []byte(`{}`)
				}

				var workflowsWithDefaults schema.WorkflowsMetadata
				err = json.Unmarshal(workflowsRaw, &rworkflowsWithDefaults)
				if err != nil {
					logger.Error("Failed to unmarshal workflows config", "error", err)
					continue
				}

				workflowsMap := map[string]interface{}{
					"enabled":        workflowsWithDefaults.Enabled,
					"require_pr":     workflowsWithDefaults.RequirePr,
					"resource_group": string(workflowsWithDefaults.ResourceGroup),
					"run_frequency":  string(workflowsWithDefaults.RunFrequency),
				}
				repoMap[repoName] = map[string]interface{}{
					"renovate": workflowsMap,
					"owner":    entity.Spec.Owner,
				}
			}
			logger.Info("Fetched GitHub Repository data from Backstage", "repository_count", len(repoMap), "status_code", resp.StatusCode)

spec:
  renovate:
    enabled: true
    config:
      resourceGroup: LARGE      # SMALL | MEDIUM | LARGE  
      runFrequency: "0 */4 * * *"  # Every 4 hours