If you are using R to perform statistical analysis, chances are that at least some of the data you need is stored in a database. While some databases such as SQL Server support native R scripts, others do not (for example, support for R in Azure SQL Database is in preview at the time of … Continue reading Docker container with R and ODBC
This post is a continuation from Part 4: NSGs. Other posts in this series: Part 1: deep dive in AKS with Azure CNI in your own vnet Part 2: deep dive in AKS with kubenet in your own vnet, and ingress controllers Part 3: outbound connectivity from AKS pods Part 4: NSGs with Azure CNI … Continue reading A Day in the Life of a Packet in AKS (part 5): Virtual Node
This post is a continuation from Part 5: Virtual Node. Other posts in this series: Part 1: deep dive in AKS with Azure CNI in your own vnet Part 2: deep dive in AKS with kubenet in your own vnet, and ingress controllers Part 3: outbound connectivity from AKS pods Part 4: NSGs with Azure … Continue reading A Day in the Life of a Packet in AKS (part 6): Network Policy
Hey again, to complete the previous post on the Azure CNI, here it goes using kubenet instead. To make it a bit more interesting we are going to explore a bunch of additional stuff: Deploying AKS with kubenet in your own vnet (note that this is not well documented or supported by Microsoft at the … Continue reading A Day in the Life of a Packet in AKS (part 2): kubenet and ingress controller
I have been often troubleshooting networking inside of Azure Kubernetes Service (AKS) multiple times, so prompted by a colleague I decided to do a deep dive into the way packets are forwarded. Turned out I have learnt quite a lot! In this blog I will describe how to check every step of the way in … Continue reading A Day in the Life of a Packet in Azure Kubernetes Service (part 1): Azure CNI
Lately I have been involved in quite some conversations, where organisations have shown a lot of interest in the integration between Cisco ACI and F5 BigIP and BigIQ (or should I say iWorkflow?). As you might know, Cisco ACI offers the option to integrate L4-L7 services in the network. What does this mean? Optionally, you … Continue reading What do Cisco ACI, microsegmentation, service insertion, REST and Docker containers have in common?
You might remember my old post on Linux container integration with ACI by using the “network=none” option in the old Docker implementation: http://erjosito.tumblr.com/post/110063660087/cisco-aci-and-linux-containers. In the meantime, the networking concept in Docker has considerably evolved, including in the latest releases the concept of network driver plugins (https://docs.docker.com/engine/extend/plugins_network/). Contiv (https://contiv.io) is one of those plugins, that enhances the … Continue reading Demo with Docker containers and Cisco ACI integration: Contiv