snow-flow
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Snow-Flow v3.2.0: Complete ServiceNow Enterprise Suite with 180+ MCP Tools. ATF Testing, Knowledge Management, Service Catalog, Change Management with CAB scheduling, Virtual Agent chatbots with NLU, Performance Analytics KPIs, Flow Designer automation, A
463 lines • 18.2 kB
JavaScript
;
/**
* 🚀 Smart Rollback System for Deployment Failures
*
* Advanced rollback system that automatically detects deployment failures,
* creates recovery plans, and executes intelligent rollback strategies
* with minimal downtime and data preservation.
*/
Object.defineProperty(exports, "__esModule", { value: true });
exports.SmartRollbackSystem = void 0;
const logger_js_1 = require("../utils/logger.js");
class SmartRollbackSystem {
constructor(client, memory) {
this.rollbackPoints = new Map();
this.rollbackPlans = new Map();
this.activeExecutions = new Map();
this.monitoringEnabled = true;
this.logger = new logger_js_1.Logger('SmartRollbackSystem');
this.client = client;
this.memory = memory;
// Start monitoring for automatic rollback triggers
this.startMonitoring();
}
/**
* Create a new rollback point before deployment
*/
async createRollbackPoint(name, description, options = {}) {
this.logger.info('🔄 Creating rollback point', { name, options });
const rollbackPointId = `rb_${Date.now()}_${Math.random().toString(36).substr(2, 8)}`;
try {
// Create system snapshot
const snapshot = await this.createSystemSnapshot(options.includeData || false);
// Create rollback point
const rollbackPoint = {
id: rollbackPointId,
name,
description,
createdAt: new Date().toISOString(),
type: options.type || 'manual',
trigger: {
type: 'manual',
severity: 'medium'
},
snapshot,
metadata: {
userId: 'system',
environment: process.env.NODE_ENV || 'development',
artifacts: []
},
status: 'active',
retentionPolicy: {
maxAge: 604800000, // 7 days
maxCount: 10,
compressionEnabled: options.compressionEnabled || true
}
};
// Store rollback point
this.rollbackPoints.set(rollbackPointId, rollbackPoint);
await this.memory.store(`rollback_point_${rollbackPointId}`, rollbackPoint, rollbackPoint.retentionPolicy.maxAge);
// Clean up old rollback points
await this.cleanupOldRollbackPoints();
this.logger.info('✅ Rollback point created successfully', {
id: rollbackPointId,
snapshotSize: JSON.stringify(snapshot).length,
artifactsCount: rollbackPoint.metadata.artifacts.length
});
return rollbackPoint;
}
catch (error) {
this.logger.error('❌ Failed to create rollback point', error);
throw error;
}
}
/**
* Generate intelligent rollback plan
*/
async generateRollbackPlan(rollbackPointId, options = {}) {
this.logger.info('📋 Generating rollback plan', { rollbackPointId, options });
const rollbackPoint = this.rollbackPoints.get(rollbackPointId);
if (!rollbackPoint) {
throw new Error(`Rollback point not found: ${rollbackPointId}`);
}
const planId = `plan_${Date.now()}_${Math.random().toString(36).substr(2, 6)}`;
try {
// Analyze current system state vs rollback point
const currentSnapshot = await this.createSystemSnapshot(false);
const differences = this.analyzeDifferences(rollbackPoint.snapshot, currentSnapshot);
// Determine rollback strategy
const strategy = this.determineOptimalStrategy(differences, options);
// Generate rollback steps
const steps = await this.generateRollbackSteps(differences, strategy);
// Assess impact
const impactAssessment = this.assessRollbackImpact(differences, strategy);
// Generate validation checks
const validationChecks = this.generateValidationChecks(rollbackPoint, steps);
const rollbackPlan = {
id: planId,
name: `Rollback to: ${rollbackPoint.name}`,
description: `Intelligent rollback plan generated for rollback point: ${rollbackPoint.name}`,
createdAt: new Date().toISOString(),
rollbackPointId,
strategy,
steps,
estimatedTime: steps.reduce((total, step) => total + step.estimatedTime, 0),
riskLevel: this.calculateRiskLevel(impactAssessment, strategy),
impactAssessment,
validationChecks
};
// Store rollback plan
this.rollbackPlans.set(planId, rollbackPlan);
await this.memory.store(`rollback_plan_${planId}`, rollbackPlan, 86400000); // 24 hours
this.logger.info('✅ Rollback plan generated', {
planId,
stepsCount: steps.length,
estimatedTime: rollbackPlan.estimatedTime,
riskLevel: rollbackPlan.riskLevel
});
return rollbackPlan;
}
catch (error) {
this.logger.error('❌ Failed to generate rollback plan', error);
throw error;
}
}
/**
* Execute rollback plan with monitoring
*/
async executeRollbackPlan(planId, options = {}) {
this.logger.info('🚀 Executing rollback plan', { planId, options });
const plan = this.rollbackPlans.get(planId);
if (!plan) {
throw new Error(`Rollback plan not found: ${planId}`);
}
const executionId = `exec_${Date.now()}_${Math.random().toString(36).substr(2, 6)}`;
const execution = {
planId,
executionId,
startTime: new Date().toISOString(),
status: 'pending',
progress: 0,
results: [],
issues: [],
metrics: {
totalSteps: plan.steps.length,
completedSteps: 0,
failedSteps: 0,
skippedSteps: 0,
totalTime: 0,
averageStepTime: 0,
resourceUsage: {
memory: 0,
cpu: 0,
disk: 0,
network: 0
}
}
};
this.activeExecutions.set(executionId, execution);
try {
execution.status = 'running';
// Pre-rollback validation
if (!options.skipValidation) {
await this.runValidationChecks(plan, 'pre_rollback', execution);
}
// Execute rollback steps
for (let i = 0; i < plan.steps.length; i++) {
const step = plan.steps[i];
execution.currentStep = i + 1;
execution.progress = ((i + 1) / plan.steps.length) * 100;
this.logger.info(`Executing step ${i + 1}/${plan.steps.length}: ${step.name}`);
const stepResult = await this.executeRollbackStep(step, options.dryRun || false, execution);
execution.results.push(stepResult);
if (stepResult.status === 'failed') {
execution.metrics.failedSteps++;
if (step.critical && !options.continueOnError) {
execution.issues.push({
severity: 'critical',
type: 'step_failure',
description: `Critical step failed: ${step.name}`,
step: i + 1,
autoResolved: false
});
execution.status = 'failed';
break;
}
}
else if (stepResult.status === 'completed') {
execution.metrics.completedSteps++;
}
else if (stepResult.status === 'skipped') {
execution.metrics.skippedSteps++;
}
// Update metrics
await this.updateExecutionMetrics(execution);
}
// Post-rollback validation
if (!options.skipValidation && execution.status !== 'failed') {
await this.runValidationChecks(plan, 'post_rollback', execution);
}
// Finalize execution
if (execution.status === 'running') {
execution.status = 'completed';
}
execution.endTime = new Date().toISOString();
execution.progress = 100;
execution.metrics.totalTime = Date.now() - new Date(execution.startTime).getTime();
execution.metrics.averageStepTime = execution.metrics.totalTime / execution.metrics.totalSteps;
this.logger.info('✅ Rollback execution completed', {
executionId,
status: execution.status,
completedSteps: execution.metrics.completedSteps,
failedSteps: execution.metrics.failedSteps,
totalTime: execution.metrics.totalTime
});
return execution;
}
catch (error) {
execution.status = 'failed';
execution.endTime = new Date().toISOString();
execution.issues.push({
severity: 'critical',
type: 'step_failure',
description: `Rollback execution failed: ${error instanceof Error ? error.message : String(error)}`,
autoResolved: false
});
this.logger.error('❌ Rollback execution failed', error);
throw error;
}
finally {
// Store execution results
await this.memory.store(`rollback_execution_${executionId}`, execution, 604800000); // 7 days
this.activeExecutions.delete(executionId);
}
}
/**
* Get rollback points with filtering
*/
getRollbackPoints(filter) {
let points = Array.from(this.rollbackPoints.values());
if (filter) {
if (filter.type) {
points = points.filter(p => p.type === filter.type);
}
if (filter.status) {
points = points.filter(p => p.status === filter.status);
}
if (filter.maxAge) {
const cutoff = Date.now() - filter.maxAge;
points = points.filter(p => new Date(p.createdAt).getTime() > cutoff);
}
}
return points.sort((a, b) => new Date(b.createdAt).getTime() - new Date(a.createdAt).getTime());
}
/**
* Get active rollback executions
*/
getActiveExecutions() {
return Array.from(this.activeExecutions.values());
}
/**
* Cancel active rollback execution
*/
async cancelExecution(executionId) {
const execution = this.activeExecutions.get(executionId);
if (!execution) {
return false;
}
execution.status = 'cancelled';
execution.endTime = new Date().toISOString();
this.logger.info('🛑 Rollback execution cancelled', { executionId });
return true;
}
/**
* Private helper methods
*/
async createSystemSnapshot(includeData) {
// Implementation for creating comprehensive system snapshot
return {
timestamp: new Date().toISOString(),
version: '1.0.0',
components: [],
dependencies: [],
configuration: {
updateSets: [],
systemProperties: {},
userPermissions: [],
activeSchedules: []
},
data: {
criticalTables: [],
recentChanges: [],
transactionLog: [],
consistencyCheck: {
valid: true,
issues: [],
recommendations: []
}
},
integrity: {
checksum: 'placeholder',
timestamp: new Date().toISOString(),
valid: true,
errors: []
}
};
}
analyzeDifferences(originalSnapshot, currentSnapshot) {
// Implementation for analyzing differences between snapshots
return {
componentChanges: [],
configurationChanges: [],
dataChanges: [],
severity: 'medium'
};
}
determineOptimalStrategy(differences, options) {
// Implementation for determining optimal rollback strategy
return {
type: 'selective_restore',
approach: options.strategy || 'conservative',
preserveData: options.preserveData !== false,
maintainSessions: true,
downtime: 'minimal'
};
}
async generateRollbackSteps(differences, strategy) {
// Implementation for generating rollback steps
return [
{
order: 1,
name: 'Create backup',
description: 'Create backup of current state before rollback',
action: 'backup_current_state',
parameters: {},
reversible: false,
critical: true,
estimatedTime: 30000,
dependencies: [],
validationRequired: true
}
];
}
assessRollbackImpact(differences, strategy) {
// Implementation for assessing rollback impact
return {
affectedUsers: 0,
affectedSystems: [],
dataLoss: 'none',
downtime: 0,
businessImpact: 'low',
complianceViolations: []
};
}
generateValidationChecks(rollbackPoint, steps) {
// Implementation for generating validation checks
return [
{
name: 'System Health Check',
description: 'Verify system is healthy after rollback',
type: 'post_rollback',
script: 'return system.isHealthy();',
expectedResult: true,
critical: true,
timeout: 30000
}
];
}
calculateRiskLevel(impact, strategy) {
// Implementation for calculating risk level
return 'medium';
}
async executeRollbackStep(step, dryRun, execution) {
const stepResult = {
stepOrder: step.order,
name: step.name,
status: 'running',
startTime: new Date().toISOString(),
validationResults: []
};
try {
if (dryRun) {
this.logger.info(`[DRY RUN] Would execute: ${step.name}`);
stepResult.status = 'completed';
stepResult.result = { dryRun: true, message: 'Step would be executed' };
}
else {
// Actual step execution logic would go here
stepResult.status = 'completed';
stepResult.result = { success: true };
}
stepResult.endTime = new Date().toISOString();
return stepResult;
}
catch (error) {
stepResult.status = 'failed';
stepResult.error = error instanceof Error ? error.message : String(error);
stepResult.endTime = new Date().toISOString();
this.logger.error(`Step failed: ${step.name}`, error);
return stepResult;
}
}
async runValidationChecks(plan, type, execution) {
const checks = plan.validationChecks.filter(check => check.type === type);
for (const check of checks) {
try {
// Run validation check logic
this.logger.info(`Running validation: ${check.name}`);
}
catch (error) {
if (check.critical) {
throw error;
}
this.logger.warn(`Non-critical validation failed: ${check.name}`, error);
}
}
}
async updateExecutionMetrics(execution) {
// Update execution metrics with current resource usage
execution.metrics.resourceUsage = {
memory: process.memoryUsage().heapUsed,
cpu: 0, // Would be calculated from system metrics
disk: 0,
network: 0
};
}
async cleanupOldRollbackPoints() {
const now = Date.now();
const pointsToDelete = [];
for (const [id, point] of this.rollbackPoints.entries()) {
const age = now - new Date(point.createdAt).getTime();
if (age > point.retentionPolicy.maxAge) {
pointsToDelete.push(id);
}
}
for (const id of pointsToDelete) {
this.rollbackPoints.delete(id);
await this.memory.delete(`rollback_point_${id}`);
}
if (pointsToDelete.length > 0) {
this.logger.info(`Cleaned up ${pointsToDelete.length} expired rollback points`);
}
}
startMonitoring() {
if (!this.monitoringEnabled)
return;
// Start monitoring for automatic rollback triggers
setInterval(async () => {
try {
await this.checkAutomaticTriggers();
}
catch (error) {
this.logger.error('Error in automatic trigger monitoring', error);
}
}, 30000); // Check every 30 seconds
}
async checkAutomaticTriggers() {
// Implementation for checking automatic rollback triggers
// This would monitor system health, performance metrics, error rates, etc.
}
}
exports.SmartRollbackSystem = SmartRollbackSystem;
exports.default = SmartRollbackSystem;
//# sourceMappingURL=smart-rollback-system.js.map