By Alex PollittSep 23, 2019CaaS, Calico, Kubernetes, Scaling
IBM Cloud has made a massive shift to Kubernetes. From an initial plan for a hosted Kubernetes public cloud offering it has snowballed to tens of thousands of production Kubernetes clusters running across more than 60 data centers around the globe, hosting 90% of the...
By Alex PollittJun 13, 2019Calico, eBPF, Networking, Open Source
Calico provides users flexibility by detecting and choosing the right tool for the right job. One of our core values at Tigera is Our customer is the hero of our story. We consider the OpenSource users of Project Calico our customers and we intently listen to their...
By Alex PollittApr 26, 2019Kubernetes
Connection tracking (“conntrack”) is a core feature of the Linux kernel’s networking stack. It allows the kernel to keep track of all logical network connections or flows, and thereby identify all of the packets which make up each flow so they can be handled...
By Alex PollittApr 18, 2019Kubernetes, Networking
kube-proxy is a key component of any Kubernetes deployment. Its role is to load-balance traffic that is destined for services (via cluster IPs and node ports) to the correct backend pods. Kube-proxy can run in one of three modes, each implemented with different data...
