What is critical, major and blocker defect software testing?

"If you’re rolling out FluxCD and worried about performance regressions (sync loops thrashing, API server load, degraded cluster latency), the smart move is to treat it like any infra rollout: have a rollback path and a comms plan ready before you hit go.

Rollback Plan
Canary rollout first

• Don’t switch your whole fleet to FluxCD on day one.
• Start with 1–2 non-critical clusters or namespaces, measure sync latency + cluster API usage.

Keep old deployment mechanism in parallel

• If you were using Helmfile, Argo, or even raw kubectl apply, don’t rip it out yet.
• Keep manifests/templates in sync so you can flip back with minimal drift.

Quick kill switch

• Namespace-level: delete the FluxCD controllers (flux-system namespace) to stop reconcilers instantly.
• Git-level: freeze by locking or archiving the Git repo branch FluxCD is watching.

Rollback path

• Maintain a last known good deployment manifest snapshot from before Flux took over.
• In case of regressions, redeploy from that snapshot with your old toolchain.

Monitoring gates

• Put SLOs on sync duration, API server QPS, pod scheduling latency.
• If thresholds breach, auto-disable sync via feature flag (e.g. remove cluster from FluxCD config).

Comms Plan

• Internal (Dev/Eng teams)
• Pre-rollout: announce that Flux is going live in pilot scope, what changes in workflow, and what metrics will be tracked.
• During rollout: post regular updates in an #infra or #release Slack channel.
• If rollback happens: clearly state Flux disabled, old deploy pipeline re-enabled, ETA for fix.
• External (if customer-facing impact possible)
• Status page template ready: We are investigating elevated latency due to recent infra change. Rollback in progress.
• Keep updates short but regular (every 30–60 mins).
• Exec/Stakeholder updates
• Non-technical brief: New deployment engine tested, saw API server regression, rolled back to stable. No data loss.
• Share metrics proving rollback restored baseline performance.

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

As of late September 2025, you should avoid enabling new features during the following change-freeze windows:

• Early-to-mid October: Avoid deployments during the first two weeks of October, especially around the major festival periods for Dussehra and Diwali.
• Late November to December: Initiate a company-specific change freeze to avoid potential site disruptions during the holiday shopping season, including Black Friday and Cyber Monday.

Rollback plan
The most effective rollback for a Dependabot-induced performance issue is to pause the service, not revert the codebase. This immediately stops new update PRs and prevents further performance impact while you investigate.

• Phase 1: Detection and immediate action
• Phase 2: Containment and analysis
• Phase 3: Relaunch

Communications plan
Transparent, clear communication is essential during a performance regression. It reduces developer anxiety and maintains confidence in the automated system.

To restrict Agentforce features to a pilot group, you need to use a combination of feature flags and policy controls, typically through Role-Based Access Control (RBAC). Feature flags separate the deployment of the code from its release, while RBAC ensures that only the designated pilot group has the permissions required to see and use the new features.

• Step 1: Implement feature flags

Wrap the new Agentforce features in your code with feature flags. This is a standard practice for decoupling code deployment from feature release, allowing you to hide unfinished or experimental features in production.

• Step 2: Establish a pilot group with policy controls (RBAC)

Policy controls, particularly RBAC, govern who has access to features. You will need to create a new role or permission set specifically for the pilot group and configure your system to grant them access to the feature flags.

• Step 3: Combine feature flags and policy controls

For a seamless and secure rollout, your system needs to evaluate both the feature flag state and the user's permissions.