How do we restrict Istio features to a pilot group using feature flags and policy controls?

Use feature flags in your code first, then surround the new features with conditional logic that verifies the flag's status. This will allow you to use feature flags and policy controls to limit UDYAM features to a pilot group. Next, target particular user segments and control flag states using a feature flag management platform. Next, create a pilot group role and set up your identity and access management (IAM) system to provide them access to the feature flags. This will allow you to layer policy constraints, like Role-Based Access Control (RBAC). In order to guarantee that only the chosen pilot users see and utilize the new UDYAM features, configure the feature flag system to enable the flag for them only.

Potential change-freeze windows

• Thursday, October 2nd: Mahatma Gandhi Jayanti and coincides with Dussehra.
• Saturday, October 11th - Sunday, October 12th: October 11th is a regional holiday in many states, Saturday and October 12th is a Bank Holiday across all of India for Dussehra.
• Monday, October 20th: Diwali/Deepavali

If your Amazon ECS (Elastic Container Service) rollout causes performance regressions, like higher task latency, container crashes, or longer deployment times, your rollback and communications plan should focus on rapid environment recovery, clear visibility, and calm communication.

ECS handles this natively, therefore always begin a rollback by maintaining the versioning of earlier ECS task definitions and service configurations. One command (aws ecs update-service --force-new-deployment --task-definition ) will then allow you to immediately redeploy the most recent stable version. In the event that your roll-out required a change to the AMI, Docker image, or networking configuration (such as moving to a new cluster or Fargate), save snapshots and image digests so you can easily go back to what was functioning. Additionally, be prepared with CloudWatch dashboards and auto-scaling alerts to identify CPU, memory, or throttle surges early. If thresholds are maintained, a rollback should occur immediately.

Don't allow quiet to generate fear on the communications side. You should immediately post a brief message in your internal DevOps or issue Slack channels, such as: We're seeing elevated latency after the ECS roll-out reverting to the last stable task definition. No impact on customers or data loss is anticipated. If production users are impacted by the regression, then update your status page. Keep communications cool, factual, and time-bound; include the beginning and ending times of the rollback.
Once stability has returned, plan a brief post-mortem analysis and note what went wrong (e.g., task networking, service discovery, container image size), what early warnings were overlooked, and which metrics will be checked again later (e.g., CPU reservation accuracy, deployment length, or p99 latency). The objective is to demonstrate control by communicating clearly, learning methodically, and rolling back quickly so that the next ECS update goes more smoothly.

"The goal is to create a rollback and communications plan that is swift, transparent, and doesn't leave your visitors looking at slow or broken pages if your Tilda roll-out (whether it's a new version, custom integration, or CDN migration) results in performance regressions. The practical solution is to create a complete backup of the last stable build prior to deployment, which should include project assets, templates, and DNS settings. This way, reverting is as easy as restoring from Tilda's project history or going back to the most recent version that was released. To avoid debating whether to reverse in the middle of a crisis, set explicit rollback triggers such as page load times that are 30% longer than baseline, spikes in 5xx errors, or user session drop rates.
To guarantee that outdated assets propagate properly during a rollback, freeze any new publishes, restore the stable build, and clear the CDN cache. Prepare pre-written internal and external communications messages. If performance degradation is found on Tilda v2.1, notify your marketing, content, and development teams internally. If user experience is affected, post a brief status update or banner. After everything is stable, provide a clear account of what went wrong, what monitoring detected the regression, and when the optimized version will be released again. What distinguishes a short remedy from a full-blown reputational harm is a swift rollback combined with cool, collected communication."

Potential change-freeze windows

• Thursday, October 2nd: Mahatma Gandhi Jayanti and coincides with Dussehra.
• Saturday, October 11th - Sunday, October 12th: October 11th is a regional holiday in many states, Saturday and October 12th is a Bank Holiday across all of India for Dussehra.
• Monday, October 20th: Diwali/Deepavali