Shivang Gupta

Kubernetes & Cloud Infra • Linux • System Design

[Abhijeet Dipke @abhijeet_dipke]

Not a democracy.

[clovis @clovisdsdo]

Your entire Kubernetes cluster depends on one thing: ETCD

If it’s slow, your cluster is slow.
If it’s broken, your cluster is broken.

Here’s how to make your etcd powerful

1️⃣ Keep it small
etcd is NOT a database for everything
Store only cluster state

2️⃣ Use fast storage
Disk latency = cluster latency
Always use SSD (prefer NVMe)
Slow disk = slow kubectl, slow scheduling

3️⃣ Run an odd number of nodes
Based on Raft consensus
3 or 5 nodes (never 2 or 4)
Ensures quorum and strong consistency

4️⃣ Protect quorum at all cost
Writes require majority:
3 nodes → 2 required
5 nodes → 3 required
Lose quorum = cluster frozen

5️⃣ Isolate etcd from workload
Dedicated nodes
Never mix with heavy workloads

6️⃣ Backup regularly
etcdctl snapshot save
Test restore, not just backup

7️⃣ Secure everything
etcd = your cluster brain
TLS everywhere
Restrict access strictly

8️⃣ Monitor like a critical system
Watch latency, disk I/O, DB size
Set alerts before it’s too late

9️⃣ Defragment periodically
Deleted data still takes space
etcdctl defrag
Keeps performance stable

🔟 Keep network latency low
Place nodes close (same AZ if possible)

[Akshay Shinde @ConsciousRide]

90% of Kubernetes / DevOps interviews in 2026 are just these 14 concepts repeated :

[Govardhana Miriyala Kannaiah @govardhana_mk]

If you're a DevOps Engineer targeting a top tier role these are the fundamentals that will get you there.

[1] Junior DevOps Engineer 0–2 yrs

- Linux basics
- Bash / Python scripting
- Git & version control
- Networking fundamentals
- TCP/IP & DNS
- CI/CD concepts
- Docker basics
- Environment variables
- Basic monitoring

Goal: Build pipelines that work correctly. Understand how code reaches a server. Don't jump to Kubernetes before this is solid.

[2] Mid level 2–5 yrs

- Kubernetes internals
- Helm & GitOps
- Infrastructure as Code
- Secrets management
- Zero downtime deploys
- Log aggregation
- Alerting strategies
- Rollback patterns
- Container security
- Service mesh basics

Judged on: Does it fail safely? Can the team recover fast? Is the blast radius contained?

[3] Senior & beyond 5+ yrs

Platform thinking at scale

- Multi region architecture
- Chaos engineering
- SLAs, SLOs & error budgets
- Cost optimization
- FinOps
- Security posture
- Compliance automation
- Capacity planning
- Incident command

You are paid to: Prevent outages. Prevent cost explosions. Build systems teams trust at 3am.

Juniors: stabilize fundamentals before touching orchestration

Mid levels: master safe delivery and failure patterns

Seniors: own cloud cost, security posture, and resilience

Today anyone can ship a pipeline.
Not everyone can keep it alive.

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What do we cover:
DevOps, Cloud, Kubernetes, IaC, GitOps, MLOps

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[Shivang Gupta @iamshivang___]

@OfficialDMRC what are you promoting again ??

Please have some dignity...

[Shivang Gupta @iamshivang___]

@Hartdrawss Bro Can I get resume template ?

[Shivang Gupta @iamshivang___]

@9479_vrsingh @_groww @zerodha Yes bro, now it's time to switch ... 🤧

[Shivang Gupta @iamshivang___]

@9479_vrsingh @_groww Aaj sab groww users barbaad ho jaayege 💀

[Shivang Gupta @iamshivang___]

Hats off 🔥to DevOps and SRE of @JioCinema

#INDvsAFG

[Shivang Gupta @iamshivang___]

@Hiteshdotcom @piyushgarg_dev Much needed and much awaited collab ✨.
This is gonna be an ocean full of knowledge. Everyone be ready with your buckets 💕🛐.

[Shivang Gupta @iamshivang___]

Had an amazing experience in #DisruptiveTechDelhi meetup organized by @CivoCloud . I got the chance to meet some amazing individuals of the tech community and made some valuable connections. Get to know about webassembly by @HowDevelop and some good life lessons by @kunalstwt .

[Shivang Gupta @iamshivang___]

@armankhon Hello @armankhon ,I am interested in intern position, could I get Refferal? Thankyou

[Shivang Gupta @iamshivang___]

@armankhon Hello @armankhon , I am intrested. Could I get referral?

[Shivang Gupta @iamshivang___]

@gdg_noida @GoogleIndia @Google @googledevs @googledevgroups @GoogleDevsIN @GoogleDevExpert @workspacedevs @GoogleStartups @GDGIndia @gdg_noida just registered for the event, when will I get rsvp?

[Shivang Gupta @iamshivang___]

Khada hu aaj bhi vhi,
Ki Tera intejaar hai ... 🥺💔💔

#INDvsAUSfinal #INDvAUS

[Shivang Gupta @iamshivang___]

@Jaspritbumrah93 Bhai ke aage toh bol skta h kya....

#INDvsAUSfinal #INDvsAUS ...

[Shivang Gupta @iamshivang___]

@_maityamit @xegan271 @_maityamit us bhai us 😭

[Shivang Gupta @iamshivang___]

@Jaspritbumrah93 and @MdShami11 Bhai.... 😩✨✨🛐🔥

#INDvsAUSfinal

[Shivang Gupta @iamshivang___]

@Immortal_abdul Bro doesn't even hesitate 🤡

[Shivang Gupta @iamshivang___]

@Hiteshdotcom Sam Altman - 🤡