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DevOps and systems
Docker, Kubernetes, AWS, WebRTC and CI/CD.
Linux and ServersPractice
0/13 lessons- SSH and the Shell45 min
- Files, Permissions and Users45 min
- Processes and Services45 min
- Nginx Basics45 min
- Logs and Troubleshooting45 min
- Module assignment: Server health report55 min
- Where things live on a Linux server40 min
- Finding files and text with find and grep45 min
- Environment variables and PATH40 min
- Writing a safe shell script45 min
- Scheduled jobs with cron35 min
- Installing and updating packages with apt35 min
- Backups with tar and a restore test40 min
DockerPractice
0/9 lessonsKubernetesPractice
0/16 lessons- What Kubernetes Does45 min
- Deployments and YAML50 min
- Services and Networking50 min
- Config, Secrets and Health Checks50 min
- Scaling and Daily kubectl50 min
- Module assignment: Kubernetes basics55 min
- Namespaces and labels40 min
- Pod phases and restart policies45 min
- Jobs and CronJobs40 min
- DaemonSets and StatefulSets45 min
- PersistentVolumes and PersistentVolumeClaims45 min
- Init containers and sidecars45 min
- Taints, tolerations and node affinity40 min
- RBAC: roles and bindings40 min
- Helm charts50 min
- NetworkPolicy50 min
AWS EssentialsPractice
0/12 lessons- AWS Accounts and IAM45 min
- EC2 and VPC Basics45 min
- S3 and RDS45 min
- Lambda and Serverless45 min
- Costs and Safety45 min
- Module assignment: Plan and audit a small stack50 min
- Application Load Balancer and target groups45 min
- Auto Scaling groups40 min
- CloudWatch logs and alarms50 min
- Amazon SQS queues45 min
- Amazon ECR40 min
- Secrets Manager and Parameter Store45 min
WebRTCPractice
0/8 lessonsCI/CDPractice
0/10 lessons- What CI/CD Is45 min
- Test and Build Pipelines50 min
- Secrets and Environments50 min
- Deploying Automatically55 min
- Module assignment: a CI/CD pipeline for shortlinks55 min
- Pull request checks and branch protection40 min
- Workflow triggers40 min
- Reusable workflows40 min
- Blue-green and canary releases45 min
- Plan on pull request, apply on merge45 min
Monitoring and ReliabilityPractice
0/9 lessonsNetworkingPractice
0/10 lessons- IP addresses and packets40 min
- CIDR notation and subnet masks40 min
- Routing and the default gateway40 min
- DNS records and resolution45 min
- DNS TTL and caching40 min
- TCP three-way handshake40 min
- UDP and when to use it35 min
- TLS handshake and certificates45 min
- HTTP request and response anatomy45 min
- Listening sockets with ss40 min
SecurityPractice
0/8 lessons
Phase exam
A timed mixed test across every module in this phase.