Why Choose Uncodemy Over Great Learning for DevOps Training

# Try this alone. If it takes you more than an hour,
# a trainer-led batch may save you time.

mkdir -p ~/devops-test/logs && cd ~/devops-test
echo "ERROR db timeout" >  logs/app.log
echo "INFO started"     >> logs/app.log
echo "ERROR disk full"   >> logs/app.log

# 1. Count the ERROR lines
grep -c "ERROR" logs/app.log

# 2. Make a script executable and run it
printf '#!/bin/bash\necho "hello from $(hostname)"\n' > hello.sh
chmod +x hello.sh && ./hello.sh

# 3. Find which process is listening on port 22
sudo ss -tlnp | grep ':22'

# Can you get this running and explain each line?

cat > Dockerfile <<'EOF'
FROM python:3.12-slim
WORKDIR /app
RUN pip install --no-cache-dir flask
COPY app.py .
EXPOSE 5000
CMD ["python", "app.py"]
EOF

cat > app.py <<'EOF'
from flask import Flask
app = Flask(__name__)

@app.get("/")
def home():
    return "ok"

app.run(host="0.0.0.0", port=5000)
EOF

docker build -t selftest .
docker run --rm -p 5000:5000 selftest
# In another terminal: curl http://localhost:5000

# .github/workflows/ci.yml — find the two bugs before running
name: ci
on: [push]
jobs:
  test:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - uses: actions/setup-python@v5
        with:
          python-version: "3.12"
      - run: pip install -r requirement.txt   # bug 1: file name
      - run: pytest tests                     # bug 2: test folder name?

# Fixed:
#      - run: pip install -r requirements.txt
#      - run: pytest tests/   (match your real folder name)

# Deploy, update and roll back in a local cluster (kind or minikube)
kubectl create deployment web --image=nginx:1.27
kubectl expose deployment web --port=80
kubectl rollout status deployment/web

# Update to a tag that does not exist and watch it fail
kubectl set image deployment/web nginx=nginx:does-not-exist
kubectl get pods          # look for ImagePullBackOff

# Roll back to the working version
kubectl rollout undo deployment/web
kubectl rollout history deployment/web

MOCK INTERVIEW SCENARIO DRILL

Scenario: 'After a release, users get 502 errors.'

Answer structure:
1. Scope    - all users or some? since which release?
2. Recent   - what changed? (kubectl rollout history)
3. Health   - kubectl get pods, describe, logs
4. Routing  - kubectl get endpoints <service>
5. Decide   - roll back first if impact is high
               (kubectl rollout undo deployment/<name>)
6. Learn    - write a short post-incident note

Practise saying this aloud in under 3 minutes.

PROJECT PITCH (2 minutes)

Problem : Manual deployments of a Flask app took long
          and often broke.
Built   : GitHub Actions pipeline -> tests -> Docker
          image -> push to registry -> deploy to a
          Kubernetes cluster.
Infra   : Terraform for the cloud network and cluster.
Result  : One-click, repeatable deployments with
          automatic rollback on failed health checks.
Learned : Reading pipeline logs, image tagging,
          readiness probes.
Repo    : github.com/<your-username>/flask-devops-pipeline

LEARNING STYLE TEST (tick what is true)

[ ] I finish online courses I start
[ ] I can study 1-2 hours daily without reminders
[ ] I solve errors by reading docs and forums
[ ] My schedule changes week to week

[ ] I learn faster when someone watches me work
[ ] I prefer fixed class times and a peer group
[ ] I get stuck on errors and lose motivation
[ ] I can reach Noida Sector 1 or Laxmi Nagar easily

Mostly first four  -> self-paced online can work well
Mostly last four   -> consider a trainer-led batch
Mixed              -> look at live online or hybrid

QUESTIONS FOR ANY DEVOPS DEMO CLASS

1. Can I see a live lab, not just slides?
2. Which tools are covered now? (Linux, Git, CI,
   Docker, Kubernetes, Terraform, cloud, monitoring)
3. Will I build an end-to-end pipeline project?
4. Who is the trainer and what have they worked on?
5. How are doubts handled between classes?
6. What is the batch repeat policy?
7. What does placement support include, exactly?
8. What are the total fees and what do they include?

Write down the answers the same day.

MY DECISION NOTE

Date: __________

Option A: ______________________
  Format: ______  Labs: ______  Support: ______

Option B: ______________________
  Format: ______  Labs: ______  Support: ______

My learning style: self-paced / trainer-led / mixed
Commute or online preference: ________________
Budget limit: ________________

I choose ________ because ______________________
________________________________________________

Verified with counsellor: fees [ ] syllabus [ ] dates [ ]