Cloud + DevOps Engineer: Free Skill Evaluation

server operating system storage IaaS PaaS SaaS capital expenditure operational expenditure capacity culture collaboration automation Plan Code Build filesystem files directories ls cd pwd chmod chown ps top Manage services SYSTEMD journalctl application logs df du ping curl dig keys secure access agent concepts variables arguments exit codes pipe failures backup script service health check Schedule operational tasks CRON lists dictionaries cloud inventory script resource audit IP subnet CIDR 10.0.0.0/16 Public A Public B request response Understand L4 vs L7 LOAD BALANCERS DNS TROUBLESHOOTING DNS TROUBLESHOOTING Fundamentals Region Availability Zone root account MFA User Group LEAST PRIVILEGE LEAST PRIVILEGE Fundamentals Use temporary credentials for workloads IAM ROLES Enterprise access awareness IDENTITY CENTER profiles commands AMI instance family Teach EBS EC2 STORAGE EBS SNAPSHOTS EBS SNAPSHOTS Fundamentals bucket object storage classes IAM bucket policies VPC subnets PUBLIC SUBNET PUBLIC SUBNET Fundamentals PRIVATE SUBNET PRIVATE SUBNET Fundamentals INTERNET GATEWAY INTERNET GATEWAY Fundamentals Teach usage and cost NAT GATEWAY SECURITY GROUPS SECURITY GROUPS Fundamentals NETWORK ACL NETWORK ACL Fundamentals VPC ENDPOINTS VPC ENDPOINTS Fundamentals VPC PEERING VPC PEERING Fundamentals Internet ALB NLB Launch Template ASG DNS routing ROUTE 53 CDN and edge caching CLOUDFRONT PostgreSQL/MySQL concepts backups AURORA Concepts AURORA AWARENESS Fundamentals partition key sort key Caching concepts ELASTICACHE serverless function triggers API GATEWAY API GATEWAY Fundamentals Teach asynchronous processing SQS Teach pub/sub SNS Event-driven automation EVENTBRIDGE metrics logs Audit AWS actions CLOUDTRAIL Configuration/compliance awareness AWS CONFIG Encryption key management KMS Never hardcode production credentials SECRETS MANAGER Route 53 Auto Scaling init clone add BRANCHES BRANCHES Fundamentals MERGES MERGES Fundamentals REBASE REBASE Fundamentals CONFLICTS CONFLICTS Fundamentals PULL REQUESTS PULL REQUESTS Fundamentals BRANCH PROTECTION BRANCH PROTECTION Fundamentals TAGGING & RELEASES TAGGING & RELEASES Fundamentals Compare with long-lived branching TRUNK-BASED DEVELOPMENT BUILD TOOLS BUILD TOOLS Fundamentals JAR packages ECR Nexus/Artifactory awareness Commit → Build → Test → Scan → Artifact CI controller agents Pipeline as code JENKINSFILE JENKINS CREDENTIALS JENKINS CREDENTIALS Fundamentals Enterprise awareness JENKINS SHARED LIBRARIES workflow job REUSABLE WORKFLOWS REUSABLE WORKFLOWS Fundamentals Protect secrets and runners CI SECURITY environments approvals DEPLOYMENT STRATEGIES DEPLOYMENT STRATEGIES Fundamentals ROLLBACK ROLLBACK Fundamentals images containers FROM COPY MULTI-STAGE BUILDS MULTI-STAGE BUILDS Fundamentals NETWORKING NETWORKING Fundamentals VOLUMES VOLUMES Fundamentals DOCKER COMPOSE DOCKER COMPOSE Fundamentals non-root minimal images Store versioned container images KUBERNETES ARCHITECTURE KUBERNETES ARCHITECTURE Fundamentals PODS PODS Fundamentals DEPLOYMENTS DEPLOYMENTS Fundamentals REPLICASETS REPLICASETS Fundamentals ClusterIP NodePort CONFIGMAPS CONFIGMAPS Fundamentals SECRETS SECRETS Fundamentals NAMESPACES NAMESPACES Fundamentals startup readiness REQUESTS & LIMITS REQUESTS & LIMITS Fundamentals STATEFULSETS STATEFULSETS Fundamentals DAEMONSETS DAEMONSETS Fundamentals JOBS / CRONJOBS JOBS / CRONJOBS Fundamentals PV PVC Pod network Service network INGRESS INGRESS Fundamentals Include current Kubernetes networking model GATEWAY API NETWORKPOLICY NETWORKPOLICY Fundamentals Use resource metrics HPA Metrics API v1 cgroups v2 API deprecations Teach systematic investigation KUBERNETES TROUBLESHOOTING CRASHLOOPBACKOFF CRASHLOOPBACKOFF Fundamentals IMAGEPULLBACKOFF IMAGEPULLBACKOFF Fundamentals PENDING POD PENDING POD Fundamentals OOMKILLED OOMKILLED Fundamentals SERVICE FAILURE SERVICE FAILURE Fundamentals DNS FAILURE DNS FAILURE Fundamentals STORAGE FAILURE STORAGE FAILURE Fundamentals NODE NOTREADY NODE NOTREADY Fundamentals charts templates DEV STAGE managed control plane worker nodes EKS IAM EKS IAM Fundamentals EKS LOAD BALANCING EKS LOAD BALANCING Fundamentals EKS STORAGE EKS STORAGE Fundamentals EKS AUTOSCALING EKS AUTOSCALING Fundamentals EKS OBSERVABILITY EKS OBSERVABILITY Fundamentals Primary infrastructure-as-code tool Use current Terraform 1.16-generation practices resource provider validate Critical STATE REMOTE STATE REMOTE STATE Fundamentals STATE LOCKING STATE LOCKING Fundamentals MODULES MODULES Fundamentals dev stage TERRAFORM IMPORT TERRAFORM IMPORT Fundamentals Detect console-created changes DRIFT state secrets credentials inventory playbook ANSIBLE ROLES ANSIBLE ROLES Fundamentals IDEMPOTENCY IDEMPOTENCY Fundamentals TERRAFORM VS ANSIBLE TERRAFORM VS ANSIBLE Fundamentals Teach desired deployment state in Git GITOPS Application repository sync AUTO SYNC AUTO SYNC Fundamentals SELF-HEALING SELF-HEALING Fundamentals PRUNE PRUNE Fundamentals ARGO CD PROJECTS ARGO CD PROJECTS Fundamentals APPLICATIONSETS APPLICATIONSETS Fundamentals Docker Image OBSERVABILITY OBSERVABILITY Fundamentals scraping targets PROMQL PROMQL Fundamentals Create dashboards GRAFANA ALERTMANAGER ALERTMANAGER Fundamentals latency traffic Teach structured logs LOGGING Loki OpenSearch/ELK concepts trace span Prometheus Grafana Code → Build → Artifact → Infrastructure → Deploy → Runtime DEVSECOPS SAST SAST Fundamentals DEPENDENCY SCANNING DEPENDENCY SCANNING Fundamentals SECRET SCANNING SECRET SCANNING Fundamentals CONTAINER SCANNING CONTAINER SCANNING Fundamentals SBOM SBOM Fundamentals IAC SCANNING IAC SCANNING Fundamentals KUBERNETES RBAC KUBERNETES RBAC Fundamentals POD SECURITY POD SECURITY Fundamentals NETWORK SECURITY NETWORK SECURITY Fundamentals admission policies OPA/Gatekeeper lint unit test reliability SLI SLI Fundamentals 99.9% SLO SLA SLA Fundamentals ERROR BUDGET ERROR BUDGET Fundamentals Identify repetitive manual operations Automate them Alert Triage Mitigate SEV-1 SEV-2 impact timeline service failure Kubernetes failure ON-CALL Concepts ON-CALL AWARENESS Fundamentals Cost Explorer Budgets On-Demand Spot STORAGE COST STORAGE COST Fundamentals Frequently missed NAT / DATA TRANSFER COST idle nodes oversized requests idle EC2 oversized RDS NAT cost Multi-AZ BACKUP BACKUP Fundamentals RPO RPO Fundamentals RTO RTO Fundamentals Backup & Restore Pilot Light Design recovery plan AWS BACKUP Concepts Modern progression beyond traditional DevOps PLATFORM ENGINEERING repositories pipelines INTERNAL DEVELOPER PLATFORM Concepts INTERNAL DEVELOPER PLATFORM AWARENESS Fundamentals BACKSTAGE Concepts BACKSTAGE AWARENESS Fundamentals POSTGRES_DATABASE Platform provisions approved environment Prevent unapproved infrastructure POLICY & GOVERNANCE Security Shared Services ORGANIZATIONS ORGANIZATIONS Fundamentals SCP Concepts SCP AWARENESS Fundamentals CENTRALIZED LOGGING CENTRALIZED LOGGING Fundamentals CLOUD LANDING ZONE Concepts CLOUD LANDING ZONE AWARENESS Fundamentals log analysis Terraform review terraform destroy kubectl delete AI Suggestion anomaly detection alert correlation