Datapath Failure Behavior Architecture Datapath Scale Kubernetes Integration Getting Help FAQ Slack GitHub Security Bugs Integrations Kubernetes Introduction Concepts Requirements Configuration Network Slack Slack channels For Developers Developer / Contributor Guide Setting up the development environment Development process End-To-End Testing Framework How to contribute Pull request review process Certificate of Origin Release Management Release Cadence Stable releases LTS Generic Release Process GitHub template process Reference steps for the template Minor Release Process Backporting process CI /

Mul� Host Networking Security Architecture Datapath Scale Kubernetes Integra�on Ge�ng Help FAQ Slack GitHub Security Bugs Integra�ons Kubernetes Introduc�on Concepts Requirements Configura�on Network Policy SIG Slack Slack channels For Developers Developer / Contributor Guide Se�ng up the development environment Development process End-To-End Tes�ng Framework How to contribute Pull request review process Building updated without any changes to the applica�on code or container configura�on. Why Cilium? The development of modern datacenter applica�ons has shi�ed to a service- oriented architecture o�en referred to

developers. API Reference : Details the Cilium agent API for interacting with a local Cilium instance. Development Guide : Gives background to those looking to develop and contribute modifications to the Cilium Security eBPF Datapath Kubernetes Integration Multi-Cluster (Cluster Mesh) Getting Help FAQ Slack GitHub Security Bugs Operations System Requirements Summary Linux Distribution Compatibility Matrix Linux Slack Slack channels Special Interest Groups All SIGs How to create a SIG For Developers Development Guide How To Contribute Clone and Provision Environment Submitting a pull request Getting a pull

Datapath Failure Behavior Architecture Datapath Scale Kubernetes Integration Getting Help FAQ Slack GitHub Security Bugs Integrations Kubernetes Introduction Concepts Requirements Configuration Network Environment Submitting a pull request Getting a pull request merged Development Setup Requirements Vagrant Setup Local Development in Vagrant Box Making Changes Add/update a golang dependency Debugging Helper Functions Maps Object Pinning Tail Calls BPF to BPF Calls JIT Hardening Offloads Toolchain Development Environment LLVM iproute2 bpftool BPF sysctls Kernel Testing JIT Debugging Introspection Tracing

developers. API Reference : Details the Cilium agent API for interacting with a local Cilium instance. Development Guide : Gives background to those looking to develop and contribute modifications to the Cilium Datapath Observability Kubernetes Integration Multi-Cluster (Cluster Mesh) Getting Help FAQ Slack GitHub Training Enterprise support Security Bugs Operations System Requirements Summary Linux Distribution Results for Revocation of Commit Access Notification of Commit Revocation for Detrimental Behavior Development Guide How To Contribute Clone and Provision Environment Submitting a pull request Getting a pull

developers. API Reference : Details the Cilium agent API for interacting with a local Cilium instance. Development Guide : Gives background to those looking to develop and contribute modifications to the Cilium Datapath Observability Kubernetes Integration Multi-Cluster (Cluster Mesh) Getting Help FAQ Slack GitHub Training Enterprise support Security Bugs Operations System Requirements Summary Linux Distribution Slack Slack channels Special Interest Groups All SIGs How to create a SIG For Developers Development Guide How To Contribute Clone and Provision Environment Submitting a pull request Getting a

developers. API Reference : Details the Cilium agent API for interacting with a local Cilium instance. Development Guide : Gives background to those looking to develop and contribute modifications to the Cilium Datapath Observability Kubernetes Integration Multi-Cluster (Cluster Mesh) Getting Help FAQ Slack GitHub Training Enterprise support Security Bugs Operations System Requirements Summary Architecture Results for Revocation of Commit Access Notification of Commit Revocation for Detrimental Behavior Development Guide How To Contribute Clone and Provision Environment Submitting a pull request Getting a pull

using SRv6 + VRF • Contributed to find the bug in SRv6 GSO handling • Upstream change • https://github.com/torvalds/linux/ commit/62ebaeaedee7591c257543 d040677a60e35c7aec eth VM1 VM2 VM3 SRv6 + iptables linecorp.com/ja/blog/tso-problems-srv6- based-multi-tenancy-environment/ • ipftrace source • https://github.com/YutaroHayakawa/ipftrace2 And more… • SRv6 acceleration using XDP (jp) • https://engineering PMTUD support for our load balancer (jp) • https://engineering.linecorp.com/ja/blog/network- development-in-verda/ Thank you for listening! Twitter/Slack: @YutaroHayakawa

We’ve all been there: ● “I just wish I could see the variable x when Foo() is called” Github Link: https://github.com/pixie-labs/pixie/tree/main/demos/simple-gotracing Relevant Code: // computeE computes long val = ctx->ax; trace.perf_submit(ctx, &val, sizeof(val)); return 0; } eBPF Github Link: https://github.com/pixie-labs/pixie/tree/main/demos/simple-gotracing/trace_example DEMO: Go Argument next? eBPF DEMO: HTTP Tracer eBPF https://github.com/pixie-labs/pixie https://github.com/kinvolk/inspektor-gadget Some related projects https://github.com/draios/sysdig/wiki/eBPF Checkout out repo/blog

1-36.vanilla.1.fc32.x86_64 vm $ bpftool version bpftool v5.9.1 Code and instructions at https://github.com/jsitnicki/ebpf-summit-2020 We will need… a TCP echo server $ sudo dnf install nmap-ncat $ lookup? ● Repo with code and setup instructions https://github.com/jsitnicki/ebpf-summit-2020 ● BPF sk_lookup program kernel documentation https://github.com/torvalds/linux/blob/master/Documentation/bpf/prog_sk_lookup rog_sk_lookup.rst ● BPF sk_lookup context object declaration https://github.com/torvalds/linux/blob/v5.9/include/uapi/linux/bpf.h#L4436 ● bpf_sk_assign() helper documentation on bpf-helpers(7) man page