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IPVLAN vs MACVLAN at the Edge CloudIPVLAN vs MACVLAN at the Edge Cloud

May 11, 2022May 11, 2022 | Mauricio RojasMauricio Rojas | 0 Comment

You can get all pod and cni manifests used in the post at https://github.com/cloud-native-everything/nokia-edge-network-test-resources Most of the Edge Cloud deployment have been done with Kubernetes. Multus is a must component

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kubernetes Networks 101kubernetes Networks 101

October 28, 2021October 28, 2021 | Mauricio RojasMauricio Rojas | 0 Comment

This is an Overview of the Fundamental components for Kubernetes networks like Network Namespaces and Pods. How pods, in a k8s cluster communicate inside a k8s nodes and between Kubernetes

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MetalLB and ECMP with SRLinuxMetalLB and ECMP with SRLinux

September 29, 2021September 29, 2021 | Mauricio RojasMauricio Rojas | 0 Comment

BGP multipath allows you to install multiple internal BGP paths and multiple external BGP paths to the forwarding table. Selecting multiple paths enables BGP to load-balance traffic across multiple links.

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Ingress and MetalLBIngress and MetalLB

September 23, 2021September 23, 2021 | Mauricio RojasMauricio Rojas | 0 Comment

MetalLB is a young project of a load-balancer implementation for bare metal Kubernetes clusters, using standard routing protocols. Ingress exposes HTTP and HTTPS routes from outside the cluster to services

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Calico and MetalLB working together with BGPCalico and MetalLB working together with BGP

September 22, 2021September 22, 2021 | Mauricio RojasMauricio Rojas | 0 Comment

When we want to make Calico and MetalLB working together with BGP, we’ll run into the following issue: BGP only allows one session to be established per pair of nodes.

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Upgrade kernel version in CentosUpgrade kernel version in Centos

August 25, 2021August 25, 2021 | Mauricio RojasMauricio Rojas | 0 Comment

You have centos 7.9 with an old kernel, like: [root@fss-a1 ~]# uname -r 3.10.0-1160.36.2.el7.x86_64 And you want to upgrade kernel version in Centos. Just execute: rpm --import https://www.elrepo.org/RPM-GPG-KEY-elrepo.org rpm -Uvh

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On-premises Fedora34 K8s HA Cluster with kubeadm and CalicoOn-premises Fedora34 K8s HA Cluster with kubeadm and Calico

August 12, 2021August 12, 2021 | Mauricio RojasMauricio Rojas | 0 Comment

Calico is a pure layer-3 network solution to interconnect workloads as containers or virtual servers. It relies on bird (BGP opensource project), iptables and the Linux IP stack to work.

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On-premises Fedora34 K8s cluster with kubeadm and CalicoOn-premises Fedora34 K8s cluster with kubeadm and Calico

August 11, 2021August 11, 2021 | Mauricio RojasMauricio Rojas | 0 Comment

Calico is a pure layer-3 network solution to interconnect workloads as containers or virtual servers. It relies on bird (BGP opensource project), iptables and the Linux IP stack to work.

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Get a newer version of e2fsckGet a newer version of e2fsck

August 11, 2021August 11, 2021 | Mauricio RojasMauricio Rojas | 0 Comment

You will hit an error with your e2fsck version. In my case the issue happened in Centos7, when I try to expand the disk for a fedora34 qcow2 image. qemu-img

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One-node k8s setup with kubeadm and CalicoOne-node k8s setup with kubeadm and Calico

June 25, 2021June 25, 2021 | Mauricio RojasMauricio Rojas | 0 Comment

Calico is a pure layer-3 network solution to interconnect workloads as containers or virtual servers. I relies on bird (BGP opensource project), iptables and the Linux IP stack to work.

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Categories

  • Automation or Scripting
  • Cloud Networking
  • Containers and Orchestration
  • Linux tips
  • News
  • OpenStack or KVM
  • IPVLAN vs MACVLAN at the Edge Cloud
  • kubernetes Networks 101
  • MetalLB and ECMP with SRLinux
  • Ingress and MetalLB
  • Calico and MetalLB working together with BGP

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