instructions for installing, configuring, and troubleshooting Cilium in different deployment modes. Policy Enforcement Modes : Detailed walkthrough of the policy language structure and the supported formats. Monitoring collection from Cilium. Troubleshooting : Describes how to troubleshoot Cilium in different deployment modes. BPF and XDP Reference Guide : Provides a technical deep dive of BPF and XDP technology, primarily 3: Rolling Back Version Specific Notes Advanced Configuration Network Policy Policy Enforcement Modes Rule Basics Layer 3 Examples Layer 4 Examples Layer 7 Examples Kubernetes Endpoint Lifecycle Troubleshooting

instructions for installing, configuring, and troubleshooting Cilium in different deployment modes. Policy Enforcement Modes : Detailed walkthrough of the policy language structure and the supported formats. Monitoring collection from Cilium. Troubleshooting : Describes how to troubleshoot Cilium in different deployment modes. BPF and XDP Reference Guide : Provides a technical deep dive of BPF and XDP technology, primarily 3: Rolling Back Version Specific Notes Advanced Configuration Network Policy Policy Enforcement Modes Rule Basics Layer 3 Examples Layer 4 Examples Layer 7 Examples Kubernetes Endpoint Lifecycle Troubleshooting

Details instructions for installing, configuring, and troubleshooting Cilium in different deployment modes. Network Policy : Detailed walkthrough of the policy language structure and the supported formats collection from Cilium. Troubleshooting : Describes how to troubleshoot Cilium in different deployment modes. BPF and XDP Reference Guide : Provides a technical deep dive of eBPF and XDP technology, primarily Cilium Version Specific Notes Advanced Configuration Core Agent Network Policy Policy Enforcement Modes Rule Basics Layer 3 Examples Layer 4 Examples Layer 7 Examples Deny Policies Host Policies Layer

instruc�ons for installing, configuring, and troubleshoo�ng Cilium in different deployment modes. Policy Enforcement Modes : Detailed walkthrough of the policy language structure and the supported formats. collec�on from Cilium. Troubleshoo�ng : Describes how to troubleshoot Cilium in different deployment modes. BPF and XDP Reference Guide : Provides a technical deep dive of BPF and XDP technology, primarily Versions Rolling Back Version Specific Notes Advanced Configura�on Network Policy Policy Enforcement Modes Rule Basics Layer 3 Examples Layer 4 Examples Layer 7 Examples Kubernetes Endpoint Lifecycle Troubleshoo�ng

Details instructions for installing, configuring, and troubleshooting Cilium in different deployment modes. Network Policy : Detailed walkthrough of the policy language structure and the supported formats collection from Cilium. Troubleshooting : Describes how to troubleshoot Cilium in different deployment modes. BPF and XDP Reference Guide : Provides a technical deep dive of eBPF and XDP technology, primarily Cilium Version Specific Notes Advanced Configuration Core Agent Network Policy Policy Enforcement Modes Rule Basics Layer 3 Examples Layer 4 Examples Layer 7 Examples Deny Policies Host Policies Layer

Details instructions for installing, configuring, and troubleshooting Cilium in different deployment modes. Network Policy : Detailed walkthrough of the policy language structure and the supported formats collection from Cilium. Troubleshooting : Describes how to troubleshoot Cilium in different deployment modes. BPF and XDP Reference Guide : Provides a technical deep dive of BPF and XDP technology, primarily Cilium Version Specific Notes Advanced Configuration Core Agent Network Policy Policy Enforcement Modes Rule Basics Layer 3 Examples Layer 4 Examples Layer 7 Examples Host Policies Layer 7 Protocol Visibility

Details instructions for installing, configuring, and troubleshooting Cilium in different deployment modes. Network Policy : Detailed walkthrough of the policy language structure and the supported formats collection from Cilium. Troubleshooting : Describes how to troubleshoot Cilium in different deployment modes. BPF and XDP Reference Guide : Provides a technical deep dive of eBPF and XDP technology, primarily Cilium Version Specific Notes Advanced Configuration Core Agent Network Policy Policy Enforcement Modes Rule Basics Layer 3 Examples Layer 4 Examples Layer 7 Examples Deny Policies Host Policies Layer

nux-next.git /source/linux cd linux mkdir build make O=$PWD/build ARCH=x86_64 x86_64_defconfig make O=$PWD/build ARCH=x86_64 menuconfig make O=$PWD/build ARCH=x86_64 -j16 Kernel image Remember to: filesystem image - Enable networking - Enable the SSH daemon cd /source/linux qemu-system-x86_64 -kernel build/arch/x86/boot/bzImage \ --enable-kvm \ -nic user,hostfwd=tcp::2222-:22 \ -boot c -m 2049M -hda /s 115200 acpi=off nokaslr" \ -serial stdio -display none Start the test VM cd /source/linux gdb build/vmlinux (gdb) target remote localhost:1234 (gdb) bpf/syscall.c:4180 (gdb) bpf/syscall.c:796 (gdb)

limit the number of consumers • But adding such a feature in RabbitMQ could be a long process… Build a Limiter in BPF • Let’s use BPF to get a quick win! • Track how many “AMQP consumers” have been

3: Linux tracing utility ○ strace/ftrace ○ LTTng/USDT Option 4: eBPF ? What are we going to build? eBPF [0] % objdump --syms app|grep computeE 00000000006609a0 g F .text 000000000000004b