eBPF Summit October 28, 2020 Debugging Go in production using eBPF ABOUT ME ? i’m Zain @zainasgar Co-Founder/CEO Pixie (@pixie_run) & Adjunct Professor of CS @ Stanford DEVELOPER PROBLEM You’re ing/trace_example DEMO: Go Argument Tracer ● Utilizing tracepoints for dynamic logging allows for easy instrumentation of production binaries ● The complexities of the Go ABI make it difficult to do

How to ship BPF with your Go project Lorenz Bauer October 28, 2020 Goal ● Count the number of packets on lo ● Print the count to the console ● From a single Go binary Use the source, Luke github github.com/lmb/ship-bpf-with-go github.com/cilium/ebpf

. . . . . . . . . . 1864 Create a plugin (tutorial) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1864 Plugin interfaces . . . . . . . . . . . . platforms, written in C) and the Zabbix agent 2 (extra-flexible, easily extendable with plugins, written in Go). Data flow In addition it is important to take a step back and have a look at the overall data flow maximum supported version for TimescaleDB is now 2.10. 17 Connection options for Oracle plugin The Oracle plugin, supported for Zabbix agent 2, now allows to specify as sysdba, as sysoper, or as sysasm

platforms, written in C) and the Zabbix agent 2 (extra-flexible, easily extendable with plugins, written in Go). Data flow In addition it is important to take a step back and have a look at the overall data flow monitoring plugin A Docker plugin for Zabbix agent 2 is now available as part of the out-of-the-box monitoring of Docker containers (see list of supported keys). Memcached monitoring plugin A Memcached Memcached plugin for Zabbix agent 2 is now available as part of the out-of-the-box monitoring of Memcached instances (see description). MySQL monitoring plugin A MySQL plugin for Zabbix agent 2 is now available

. . . . . . . . . . 1927 Create a plugin (tutorial) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1927 Plugin interfaces . . . . . . . . . . . . platforms, written in C) and the Zabbix agent 2 (extra-flexible, easily extendable with plugins, written in Go). Data flow In addition it is important to take a step back and have a look at the overall data flow agent 2 has been increased from 100 to 1000. Empty values allowed Empty values are now allowed in plugin-related configuration parameters on Zabbix agent 2. Support for the old numeric type dropped The

platforms, written in C) and the Zabbix agent 2 (extra-flexible, easily extendable with plugins, written in Go). Data flow In addition it is important to take a step back and have a look at the overall data flow Zabbix server or proxy. Zabbix agent 2 plugins Separate configuration files Each Zabbix agent 2 plugin now has a separate configuration file. By default, these files are located in the ./zabbix_agent2 and can be relative to the zab- bix_agent2.conf or zabbix_agent2.win.conf file location. External plugin loader Previously, plugins could only be compiled into Zabbix agent 2, which required recompiling

platforms, written in C) and the Zabbix agent 2 (extra-flexible, easily extendable with plugins, written in Go). Data flow In addition it is important to take a step back and have a look at the overall data flow agent and agent 2 item. See also: • Zabbix agent item keys • Zabbix agent 2 plugins • Modbus plugin documentation MQTT support Zabbix now supports receiving values of MQTT topics using the new mqtt mqtt.get[] agent 2 item. See also: • Zabbix agent 2 item keys • Zabbix agent 2 plugins • MQTT plugin documentation Digest authentication for HTTP agent Digest authentication is now supported for HTTP

approaches such as HTB (Hierarchy Token Bucket) or TBF (Token Bucket Filter) as used in the bandwidth CNI plugin, for example. Monitoring and Troubleshooting The ability to gain visibility and to troubleshoot cluster using Azure Kubernetes Service [https://docs.microsoft.com/en-us/azure/aks/] with no CNI plugin pre-installed (BYOCNI). See Azure Cloud CLI [https://docs.microsoft.com/en-us/cli/azure/install-azure-cli cluster az aks create \ --resource-group "${AZURE_RESOURCE_GROUP}" \ --name "${NAME}" \ --network-plugin none # Get the credentials to access the cluster with kubectl az aks get-credentials --resource-group