Devops
Linux / Bash scripting
Easy Medium Hard
Basic bash commands
aliases, .bashrc/.zshrc ,
interactive vs non interactive shells Process Management
Cron jobs
File transfer - ftp, scp
File permissions
Creating your own bash script - variables, loops,
conditionals, functions
args in bash scripts
stderr, stdout, File descriptors,
piping
grep
Creating a CLI in Node.js
Projects
1. Create a script that ssh's into a VM and pull the latest code and restarts it
2. Do the same using ssh2
VMs/EC2/GCP VMs
easy medium hard
What are VMs?
Creating a VM in various cloud providers. Specs,
pricing …
GUI vs clis for creating VMs Keypairs and ssh’ing into VMs
Deploying a non containerized app to a
VM
Process management
easy medium hard
Reverse proxies
Certificate management
Load balancers
ASGs/MIG
Easy Medium Hard
What is autoscaling, why do you need
it?
Images, Target groups, ASGs, LBs, Autoscaling
policies
MIG Internals
Containerization
What is a container
What is docker
Docker vs other
container runtimes
How to dockerize your app, WORKDIR,
CMD, RUN, ENV, COPY, ARG
Volumes and networks
Publishing to dockerhub,
other registries
Running a docker container in a VM,
exposing it over the internet
Multi stage builds
docker-compose
ECS (Warming up for k8s)
easy medium hard
What is ECS, common use
cases
ECR vs Dockerhub
Setting up Task definitions
Serverless vs EC2 instances for deploying , pros and cons of
either
Autoscaling policies
Kubernetes
Easy Medium Hard
Introduction to Kubernetes, clusters,
nodes, pods, worker node vs control
plane
Kubernetes architecture
Local deployment using
kind/minikube
Replicasets, Deployments
Networking Concepts - Services,
Types of services
Ingress, Ingress
controllers
Certificate management
Storage, PVs, PVCs,
StorageClasses, Static vs dynamic
provisioning
StatefulSets,
DaemonSets, Jobs and
CronJobs
Conifgmaps and secrets
Easy Medium Hard
Kubernetes Policies, Role-Based
Access Control, CRDs
HPAs, VPA, Cluster
autoscaler
EKS, eksctl, eks best practises
Extra - k9s, kubctx
Iac, Terraform
Easy Medium Hard
What is
Iac
Iac using bash scripts, aws cli/eksctl
Various iac tools, ansiable vs terraform.
Installing tf, What is a resource, HCL syntax, Providers
Running Terraform Commands (init, plan, apply,
destroy)
Managing state, variables,
counts
Terraform with AWS
Remote state on S3
Monitoring
Easy Medium Hard
Introduction to monitoring, why do
you need to monitor your systems
Datadog vs newrelic vs sentry.
Logging vs process observability vs
Infrastructure observability. p95, p99.
Easy Medium Hard
Self hosted monitoring using prometheus. metrics,
counters, gauges, histrograms, promQL, Graphs in
Prom
Pulling vs pushing metrics, Push gateway
Grafanna for charting, observability.
Prometheus and grafanna service discovery in a
kubernetes cluster
Package managers (helm)
easy medium hard
Why package managers, what is helm?
Installing helm cli, values and
templates
Helm charts, Dependency
management
Helm hubs, repos, custom values,
Release management in Helm 2.0 and 3.0
Templates, Go templating logic,
functions, pipelines, with blocks, creating and
uploading charts
Exploring other package mangers
(glasskube)
CI/CD in github
Easy medium Hard
What is CI/CD?
Github CI CD yaml format, Github actions
Using CI/CD to deploy to a VM
Easy medium Hard
Using CI/CD to provision infrastructure using Iac
Using CI/CD to deploy to a kubernetes cluster
Gitops
Easy Medium Hard
What is
GitOps?
Why gitops
Creating aws resources using
gitops
Creating/Updating k8s clusters
GitOps using ArgoCD
Gitops in a multi cluster environment using
ArgoCD
CDNs and Object stores
Easy Medium Hard
What are object stores, Why object
stores?
Intro to CDNs
S3, R2 for assets
Cloudfront as a CDN
Attaching a custom domain to your CDN, certificate
management
Project
1. Building a serverless provider (aws lambda) / repl.it
1. http layer, cli layer, auth
2. Building a distributed video transcoder / image resizer
3. Building a alerts manager (better stack) and status page provider
