DevOps Training

  If you’re running production systems,  incident response needs a playbook—not improvisation . This practical guide covers the end-to-end workflow:  on-call readiness, severity levels, clear stakeholder comms (with reusable templates), and blameless postmortems  so your team can reduce confusion, improve MTTR, and learn from every outage. ✅ What you’ll implement from this playbook: On-call structure:  roles, handoffs, escalation, and runbook habits Severity model:  SEV/P0 definitions tied to customer impact + response expectations Comms templates:  consistent updates for “Investigating → Identified → Monitoring → Resolved” Postmortems that improve reliability:  timeline, root cause, impact, and actionable follow-ups Read here: https://www.cloudopsnow.in/incident-management-on-call-severity-comms-templates-and-postmortems-the-practical-playbook/ #IncidentManagement #OnCall #SRE #DevOps #ReliabilityEngineering #Postmortem #RCA #Observability #Produ...

  If you’re struggling to turn “99.9% uptime” into something engineers can actually  run , this guide breaks down  SLI → SLO → Error Budgets  in a practical, step-by-step way—so you can choose the right user-focused metrics, set realistic targets, and use error budgets to balance reliability with feature velocity (the core approach promoted in Google’s SRE guidance). CloudOpsNow article: https://www.cloudopsnow.in/sli-slo-error-budgets-create-slos-that-actually-work-step-by-step-with-real-examples/ Quick takeaway (engineer-friendly): ✅ Pick  critical user journeys  → define SLIs that reflect user experience (latency, availability, correctness) ✅ Set  SLO targets + window  (e.g., 30 days) and compute the  error budget  (for 99.9%, that’s ~43 minutes in 30 days) ✅ Track  error budget burn  and use it to drive decisions: ship faster when you’re healthy, slow down and fix reliability when you’re burning too fast #SRE #SLO #SLI #Err...

 If you’re planning to adopt  OpenTelemetry  and don’t want it to turn into a messy, “instrument-everything-and-pray” rollout, this practical guide breaks down a calm, step-by-step way to introduce OTel with the right standards, rollout strategy, and guardrails—so you get reliable traces/metrics/logs without chaos. OpenTelemetry adoption works best when you treat it like an engineering migration: ✅ Start with 1–2 critical services (not the whole platform) ✅ Standardize naming + attributes early (service.name, env, version, tenant) ✅ Use  OTel Collector  as the control plane (routing, sampling, processors, exporters) ✅ Decide what matters: golden signals, key spans, and cost-safe sampling ✅ Roll out in phases: baseline → dashboards → alerts → SLOs → continuous improvements ✅ Measure overhead + data volume so observability doesn’t become the new bill shock Read the full guide here: https://www.cloudopsnow.in/opentelemetry-practical-guide-how-to-adopt-without-chaos...

  If you’re building or running systems in production and wondering why incidents still feel “invisible,” this article is a clean, beginner-friendly  Observability 101  guide that explains  Logs vs Metrics vs Traces  in plain English—and, more importantly, tells you  what to instrument first  so you get the fastest debugging wins without boiling the ocean. Observability isn’t “add more dashboards.” It’s having the right signals when things break: ✅  Metrics  →  What’s wrong?  (latency, errors, saturation, throughput) ✅  Logs  →  What happened?  (events + context, structured logging) ✅  Traces  →  Where is it slow/broken?  (end-to-end request path across services) A solid order to start: Golden Signals / RED  metrics first Add  structured logs  with correlation IDs Instrument  distributed tracing  for critical flows Read the full guide here: https://www.cloudopsnow.in/o...

 If you’re managing multiple AWS accounts / Azure subscriptions / GCP projects , governance can quickly turn into chaos—different standards, inconsistent security, surprise bills, and “who changed what?” confusion. This guide shares a practical, step-by-step way to build scalable guardrails so teams can move fast without breaking compliance, security, or cost controls. ✅ What you’ll implement (real, scalable guardrails): A clean org structure (accounts/projects grouped by env, team, workload) Standard baselines for IAM, networking, logging, and monitoring Policy-as-code guardrails (prevent risky configs before they land) Cost guardrails (budgets, quotas, tagging rules, anomaly checks) Automated onboarding (new account/project setup in minutes, not days) Day-2 operations : drift detection, exception handling, and audit readiness Read the full step-by-step guide here: https://www.cloudopsnow.in/multi-account-multi-project-governance-guardrails-that-scale-practical-step-by-step...

  If you’re setting up cloud audit logging (AWS/Azure/GCP) and feel overwhelmed by  what to log ,  how long to retain it , and  when to alert , this engineer-friendly guide breaks it down step-by-step with practical use cases—so you can improve security and troubleshooting without drowning in noisy logs. Cloud Audit Logging — what actually matters: ✅  What to log (must-have) IAM/auth changes, privileged actions, policy edits Network/security changes (SG/NACL/firewall, public exposure) Data access events (storage reads, DB admin actions) Kubernetes + workload changes (deployments, secrets, config) ✅  Retention (simple rule of thumb) Short-term “hot” logs for investigations + debugging Longer retention for compliance + incident timelines Archive strategy so costs don’t explode ✅  Alerting that’s useful (not noise) Root/admin activity, unusual geo/logins Permission escalations, key creation, MFA disabled Sudden spike in denied actions or data downloads Ch...

  If you’re setting up Kubernetes access for teams and want it to be  secure, least-privilege, and easy to maintain , this RBAC cookbook walks through  ready-to-use role patterns  for  Dev ,  SRE , and  Read-only  users—plus the common mistakes that accidentally grant too much power. Kubernetes RBAC gets messy fast unless you standardize it: ✅  Dev role  → limited to a namespace (deploy, view logs, exec only if needed) ✅  SRE role  → broader operational access (debug, scale, rollout, events) with guardrails ✅  Read-only role  → safe observability access (get/list/watch) without mutation rights ✅ Best practices →  avoid ClusterAdmin , prefer  Role + RoleBinding , review permissions, and validate with  kubectl auth can-i Read the full cookbook here: https://www.cloudopsnow.in/kubernetes-rbac-cookbook-common-roles-dev-sre-read-only-safely/ #Kubernetes #RBAC #DevOps #SRE #CloudNative #Security #PlatformEngi...

 If you’re running containers in production (Kubernetes or not) and want security that actually works in real life—not just compliance checklists—this guide breaks container security into a practical, engineer-friendly system: image scanning , runtime policies , and least privilege , with clear steps you can apply immediately. Container security isn’t one tool. It’s a workflow you run continuously: ✅ Image Scanning → catch vulnerable packages, secrets, and risky configs before deploy ✅ Runtime Policies → prevent suspicious behavior in production (unexpected processes, file access, network calls) ✅ Least Privilege → minimize blast radius (non-root, minimal capabilities, tight RBAC, restricted egress) Read here: https://www.cloudopsnow.in/container-security-done-right-image-scanning-runtime-policies-and-least-privilege/ #ContainerSecurity #Kubernetes #DevSecOps #CloudSecurity #AppSec #SupplyChainSecurity #SRE #DevOps #Docker #SecurityEngineering

 If you’re setting up a WAF (Web Application Firewall) and want it to actually block real attacks (not just generate noise), this engineer-friendly guide breaks down the most common OWASP-style attack patterns and the WAF rules that genuinely help in production —with practical examples and a clear checklist you can implement fast. WAF basics in one line: stop the bad traffic early, without breaking the good traffic. ✅ Cover the real-world attacks: SQLi, XSS, path traversal, RCE, LFI/RFI, malicious bots, credential stuffing ✅ Use the rules that matter: managed rule sets + rate limiting + bot controls + allowlists for safe endpoints ✅ Reduce false positives: log first → tune → then block , add exceptions with evidence ✅ Add app-layer defenses too: input validation, auth hardening, headers, and monitoring Read the full guide here: https://www.cloudopsnow.in/waf-basics-owasp-top-attacks-rules-that-actually-help-engineer-friendly-guide/ #WAF #OWASP #AppSec #CyberSecurity #WebSecurity ...

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