The Duck Teaches Learn to debug from the masters. Local to production- kill the bugs!
- 1. The Duck Teaches Learn to debug from the masters. Local to production - kill the bugs Shai Almog @debugagent
- 4. Agenda Shai Almog @debugagent 1. Installation (3 minutes) 2. Introduction - ~10 minutes slides 3. Flow and Break - 25 minutes 4. Watch - 25 minutes 5. Kubernetes debugging - 20 minutes 6. Developer Observability - 15 minutes 7. Q&A
- 5. Installation & Setup Shai Almog @debugagent 1. https://github.com/shai-almog/DuckWorkshop (feel free to follow me while there) 2. IntelliJ/IDEA 3. Docker Desktop - Enable Kubernetes 4. Cloud Code Plugin 5. Jump to Line Plugin
- 6. Practical Debugging at Scale Cloud Native Debugging in Kubernetes and Production by Shai Almog Apress publishing - coming soon twitter.com/debugagent debugagent.com github.com/shai-almog
- 7. “If debugging is the process of removing software bugs, then programming must be the process of putting them in.” – Edsger Dijkstra, computer science pioneer Shai Almog @debugagent Act 1: Introduction
- 8. Some People Hate Debugging Shai Almog @debugagent
- 9. Bugs are Usually Stupid Shai Almog @debugagent
- 10. It’s a Humbling Experience Shai Almog @debugagent
- 13. “Debugging is like being the detective in a crime movie where you are also the murderer.” – Filipe Fortes Shai Almog @debugagent Act 2: Flow & Break
- 14. Return Immediately & Force Throw Shai Almog @debugagent
- 15. Jump To Line Shai Almog @debugagent
- 18. Exception Breakpoints that don’t Suck Shai Almog @debugagent
- 19. “Only when the tide goes out do you discover who's been swimming naked” – Warren Buffett Shai Almog @debugagent Act 3: Watch
- 20. Watch the Return Value Shai Almog @debugagent
- 25. “The challenge with debugging is purging your mind of what you think you know & being willing to face cold, hard reality. Requires great effort, but the reward (in addition to a working program) is a more accurate understanding of reality.” – Greg Brockman Shai Almog @debugagent Act 4: Kubernetes Debugging
- 31. ✓ sdkman ✓ jmxterm ✓ honest-profile ✓ jmxtrans ✓ async-profiler ✓ visualVM ✓ maven ✓ ant ✓ gradle ✓ bird ✓ calicoctl ✓ conntrack ✓ ctop ✓ curl ✓ dhcping ✓ dnsutils ✓ fping ✓ gdb ✓ htop ✓ httpie ✓ iftop ✓ iperf ✓ ipset ✓ iptraf-ng ✓ iproute2 ✓ iputils-ping ✓ ipvsadm ✓ jq ✓ ldnsutils ✓ liboping-dev ✓ linux-tools-common ✓ maven ✓ mongo ✓ mtr ✓ mycli ✓ mysql-client ✓ netcat ✓ netgen ✓ nftables ✓ ngrep ✓ nmap ✓ pgcli ✓ postgresql-client ✓ redis-tools ✓ scapy ✓ socat ✓ software-properties- common ✓ strace ✓ tcpdump ✓ tcptraceroute ✓ termshark ✓ tmux ✓ tshark ✓ unzip ✓ vim ✓ websocat ✓ wuzz ✓ zip Shai Almog @debugagent KoolKits JVM Features
- 32. Remote Debugging - JDWP Shai Almog @debugagent
- 35. ✓ Need to restart process ✓ Breakpoints… Break… ✓ Insecure by Design ✓ Stability Risk ✓ Privacy Nightmare Shai Almog @debugagent JDWP & Local Debugging
- 36. “Debugging is twice as hard as writing the code in the first place. Therefore, if you write the code as cleverly as possible, you are, by definition, not smart enough to debug it.” – Brian Kernigham Shai Almog @debugagent Act 5: Developer Observability
- 41. ✓ Use Tracepoints! ✓ Look at Memory and Change States ✓ Break on Exceptions ✓ Customize your watch area! ✓ Observe in production Shai Almog @debugagent Summary
- 42. Practical Debugging at Scale Cloud Native Debugging in Kubernetes and Production by Shai Almog Apress publishing - coming soon twitter.com/debugagent debugagent.com github.com/shai-almog