Scaling a Multi-Tenant k8s Cluster in a Telco Pablo Moncada October 28, 2020 About MasMovil group ● 4th telecom company in Spain ● Provides voice and broadband services to +12M customers ● Several Services +3k CPU +2k Mem +5TB Nodes +300 kube-proxy replacement NetworkPolicy logging Multi-cluster DNS Aware NetworkPolicy Increased Istio security External Services TLS visibility Performance

OpenAMP混合部署模式 • 分布式软总线，欧拉/鸿蒙设备互通 云计算 边缘计算 openEuler SDK openEuler DevOps： • 磁盘资源隔离，大数据性能提升30% • 应用感知调度，hbase性能提升20% • 容器/虚机混部， • 资源利用率15%-30% • 边云管理协同框架， • 跨边云单应用秒级发放 缘起：一个运动控制系统(机器人,数控机床….) 智能控制 （人机交互

贝复用，提升跨主机和设备业务通讯性能。 • MPAM 增强：支持外部接口自定义配置分区 rmid，支持 MPAM 设备节点通过 device tree 配置启动，可用于虚拟化 等场景。 • TCP 压缩特性：hbase 等分布式数据库节点间数据传输量大，网络传输是性能瓶颈；在 TCP 层对指定端口的数据进 行压缩后再传输，收包侧把数据解压后再传给用户态，从而提升分布式场景节点间数据传输的效率。 • 支持 SGX

Advanced Networking Cluster Mesh Operations Istio Concepts Component Overview Terminology Networking Network Security eBPF Datapath Observability Kubernetes Integration Multi-Cluster (Cluster Mesh) Getting Troubleshooting Component & Cluster Health Observing Flows with Hubble Observing flows with Hubble Relay Connectivity Problems Policy Troubleshooting etcd (kvstore) Cluster Mesh Troubleshooting Symptom clusters? What is the 95th and 99th percentile latency between HTTP requests and responses in my cluster? Which services are performing the worst? What is the latency between two services? Security observability

Advanced Networking Cluster Mesh Operations Istio Concepts Component Overview Terminology Networking Network Security eBPF Datapath Observability Kubernetes Integration Multi-Cluster (Cluster Mesh) Getting Troubleshooting Component & Cluster Health Observing Flows with Hubble Observing flows with Hubble Relay Connectivity Problems Policy Troubleshooting etcd (kvstore) Cluster Mesh Troubleshooting Symptom clusters? What is the 95th and 99th percentile latency between HTTP requests and responses in my cluster? Which services are performing the worst? What is the latency between two services? Security observability

Terminology Networking Network Security eBPF Datapath Observability Kubernetes Integration Multi-Cluster (Cluster Mesh) Getting Help FAQ Slack GitHub Training Enterprise support Security Bugs Operations Scalability report Performance Evaluation Setup Evaluation Results Tuning Troubleshooting Component & Cluster Health Observing Flows with Hubble Observing flows with Hubble Relay Connectivity Problems Policy clusters? What is the 95th and 99th percentile latency between HTTP requests and responses in my cluster? Which services are performing the worst? What is the latency between two services? Security observability

Overview Terminology Networking Network Security eBPF Datapath Kubernetes Integration Multi-Cluster (Cluster Mesh) Getting Help FAQ Slack GitHub Security Bugs Operations System Requirements Summary Scalability report Performance Evaluation Setup Evaluation Results Tuning Troubleshooting Component & Cluster Health Observing Flows with Hubble Observing flows with Hubble Relay Connectivity Problems Policy clusters? What is the 95th and 99th percentile latency between HTTP requests and responses in my cluster? Which services are performing the worst? What is the latency between two services? Security observability

Agent Monitoring & Metrics Installation cilium-agent cilium-operator Troubleshooting Component & Cluster Health Connectivity Problems Policy Troubleshooting Symptom Library Useful Scripts Reporting a problem requires the firewalls on all servers to be manipulated whenever a container is started anywhere in the cluster. In order to avoid this situation which limits scale, Cilium assigns a security identity to groups store. Secure access to and from external services Label based security is the tool of choice for cluster internal access control. In order to secure access to and from external services, traditional CIDR

Troubleshooting Monitoring & Metrics Installation cilium-agent cilium-operator Troubleshooting Component & Cluster Health Connectivity Problems Policy Troubleshooting Symptom Library Useful Scripts Reporting a problem requires the firewalls on all servers to be manipulated whenever a container is started anywhere in the cluster. In order to avoid this situation which limits scale, Cilium assigns a security identity to groups store. Secure access to and from external services Label based security is the tool of choice for cluster internal access control. In order to secure access to and from external services, traditional CIDR

Exported Metrics Cilium as a Kubernetes pod Cilium as a host-agent on a node Troubleshoo�ng Component & Cluster Health Connec�vity Problems Policy Troubleshoo�ng Automa�c Diagnosis Symptom Library Useful Scripts requires the firewalls on all servers to be manipulated whenever a container is started anywhere in the cluster. In order to avoid this situa�on which limits scale, Cilium assigns a security iden�ty to groups store. Secure access to and from external services Label based security is the tool of choice for cluster internal access control. In order to secure access to and from external services, tradi�onal CIDR