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Agenda
•Troubleshooting •Troubleshooting •Troubleshooting •Troubleshooting •Troubleshooting •Troubleshooting •Troubleshooting
3
Seeing Inside Containers Is Not Easy!
Containers are: • Isolated
• Self-Contained
• Simple
• Lightweight
sysdig
•Capture system events, filter them, run useful scripts • strace + tcpdump + lsof + htop + Lua •Open Source •Nice curses UI
•Native support for containers!
sysdig Architecture
Kernel
Container1
Docker
Container2
Docker
Container3
LXCAppApp
Instrumentation through kernel module
sysdig Architecture
Kernel
Container1
Docker
Container2
Docker
Container3
LXCAppApp
sysdig
Docker
Capture and analysis