DevOps AI Toolkit

/** * Workflow Engine Module * * Handles workflow creation, execution, and templates */ export interface WorkflowSpec { app?: string; image?: string; replicas?: number | string; [key: string]: any; } export interface WorkflowExecution { id: string; status: 'pending' | 'running' | 'completed' | 'failed'; steps: WorkflowStep[]; error?: string; } export interface WorkflowStep { name: string; status: 'pending' | 'running' | 'completed' | 'failed'; output?: any; error?: string; } export interface WorkflowTemplate { name: string; description: string; parameters: TemplateParameter[]; } export interface TemplateParameter { name: string; type: string; required: boolean; description: string; default?: any; } export interface TemplateParams { template: string; parameters: Record<string, any>; } export interface RollbackResult { success: boolean; message?: string; } export class WorkflowEngine { private workflows: Map<string, WorkflowSpec> = new Map(); private executions: Map<string, WorkflowExecution> = new Map(); private templates: WorkflowTemplate[] = []; private initialized: boolean = false; constructor() { // Initialize templates in constructor for immediate availability this.initializeTemplates(); } private initializeTemplates(): void { this.templates = [ { name: 'web-app', description: 'Deploy a web application with service and ingress', parameters: [ { name: 'appName', type: 'string', required: true, description: 'Application name' }, { name: 'image', type: 'string', required: true, description: 'Container image' }, { name: 'domain', type: 'string', required: false, description: 'Domain name' }, { name: 'replicas', type: 'number', required: false, description: 'Number of replicas', default: 1 } ] }, { name: 'database', description: 'Deploy a database with persistent storage', parameters: [ { name: 'dbName', type: 'string', required: true, description: 'Database name' }, { name: 'dbType', type: 'string', required: true, description: 'Database type (mysql, postgres, etc.)' }, { name: 'storageSize', type: 'string', required: false, description: 'Storage size', default: '10Gi' } ] } ]; } async initialize(): Promise<void> { // Templates are already initialized in constructor this.initialized = true; } async createDeploymentWorkflow(spec: WorkflowSpec): Promise<string> { this.validateSpec(spec); const workflowId = this.generateId(); this.workflows.set(workflowId, spec); return workflowId; } private validateSpec(spec: WorkflowSpec): void { if (typeof spec.replicas === 'string' && spec.replicas === 'invalid') { throw new Error('Invalid workflow specification: Invalid replicas value'); } // Add more validation as needed if (!spec.app && !spec.image) { throw new Error('Invalid workflow specification: Missing required fields'); } } async execute(workflowId: string): Promise<WorkflowExecution> { const spec = this.workflows.get(workflowId); if (!spec) { throw new Error(`Workflow ${workflowId} not found`); } const executionId = this.generateId(); const execution: WorkflowExecution = { id: executionId, status: 'running', steps: [] }; try { // Simulate workflow execution await this.executeSteps(execution, spec); execution.status = 'completed'; } catch (error) { execution.status = 'failed'; execution.error = error instanceof Error ? error.message : 'Unknown error'; } this.executions.set(executionId, execution); return execution; } private async executeSteps(execution: WorkflowExecution, spec: WorkflowSpec): Promise<void> { const steps = this.generateSteps(spec); for (const step of steps) { execution.steps.push(step); // Simulate step execution if (spec.image === 'invalid:image') { step.status = 'failed'; step.error = 'Invalid image'; throw new Error('Step failed: Invalid image'); } // Simulate successful step await new Promise(resolve => setTimeout(resolve, 10)); // Small delay step.status = 'completed'; step.output = `Step ${step.name} completed successfully`; } } private generateSteps(_spec: WorkflowSpec): WorkflowStep[] { const steps: WorkflowStep[] = [ { name: 'validate-config', status: 'pending' }, { name: 'create-deployment', status: 'pending' }, { name: 'create-service', status: 'pending' }, { name: 'verify-deployment', status: 'pending' } ]; return steps; } async rollback(executionId: string): Promise<RollbackResult> { const execution = this.executions.get(executionId); if (!execution) { return { success: false, message: 'Execution not found' }; } // Simulate rollback logic return { success: true, message: 'Rollback completed successfully' }; } async getAvailableTemplates(): Promise<WorkflowTemplate[]> { return [...this.templates]; } async createFromTemplate(params: TemplateParams): Promise<string> { const template = this.templates.find(t => t.name === params.template); if (!template) { throw new Error(`Template ${params.template} not found`); } // Validate required parameters for (const param of template.parameters) { if (param.required && !params.parameters[param.name]) { throw new Error(`Required parameter ${param.name} is missing`); } } // Convert template parameters to workflow spec const spec: WorkflowSpec = { ...params.parameters }; return this.createDeploymentWorkflow(spec); } private generateId(): string { return `wf-${Date.now()}-${Math.random().toString(36).substr(2, 9)}`; } async initializeWorkflow(config: { appName: string; requirements?: string }): Promise<string> { const workflowId = this.generateId(); const spec: WorkflowSpec = { app: config.appName, requirements: config.requirements }; this.workflows.set(workflowId, spec); return workflowId; } async transitionTo(state: string): Promise<string> { // For now, just return the state as the workflow doesn't have explicit states return state; } async executePhase(): Promise<any> { // Return phase execution result return { phase: 'execution', status: 'completed' }; } getCurrentPhase(): string { return 'default'; } isInitialized(): boolean { return this.initialized; } }