ipcalc #ansible filter – manage floating ip ranges for packet.net

Post based on https://github.com/digineo/ansible-ipcalc I’ve been working many times with floating IPs for my SDWAN demos and deployments. It’s been some kind of annoying to change the configuration files so many times. Figure what IPs I should assigned to every server depending on the segment and netmask that packet gave me. Those changes also, are prone to typos that waste precious time. On this post … Continue reading ipcalc #ansible filter – manage floating ip ranges for packet.net

Prepare your #Kubernetes Cluster with #Ansible and #cloud_init

A bit tired using bash scripts. I’ve done this small playbook based on the post: “Resize and manage cloud-init on kvm with centos cloud images”. to build up your k8s master/minions over KVM using a Cloud QCOW2 image. I’ve used cloud_init to configure those cloud images from a temporary cdrom iso. Check out the code at my repo: p1nrojas/k8s-demo-installer Requirements Check out you have enough … Continue reading Prepare your #Kubernetes Cluster with #Ansible and #cloud_init

Private registry for #kubernetes cluster

Last post I told you how to create a simple registry for your Docker. Now, we need to make it work with our kubernetes cluster and that will require some extra steps: Authentication and Manage some additional parameters in your ReplicationController config. I am using an update Centos 7 with docker-engine installed. Most of the info I’ve got it from nikvdp’s post. Prepare your system … Continue reading Private registry for #kubernetes cluster

Your personal #Kubernetes image repo in a few steps (gcr.io)

Hello there. Yep! K8s is giving my some nosleep. New challenge: use my own images could be a bit more harder that I’ve thought. Then, I’ve decided to use gcr.io (for now). There’re some info you can get from Kubernetes: Hello World Walkthrough However, I want to use my own private cluster. That brings a bit more challenge. First of all, get your k8s up … Continue reading Your personal #Kubernetes image repo in a few steps (gcr.io)

#Juju in a few steps

I’m giving a try to juju now using xenial version (beta version). I have to say I was nicely impressed. They are actually working with containers (canonical lxd) and you can develop your charms really fast. Also, there’s an option that help you to create more replicas of the same app. Juju also can work with VMs and Bare Metals (MAAS). Also, you have more … Continue reading #Juju in a few steps

Scale out #Kubernetes with #Nuage: Installation notes

Howdy, Kubernetes is the dreamed orchestration tool for any developer. However, it could be a nightmare for security guys (get online images make them cringe). After all, K8s manages containers with apps and databases connected to an overlay network. Containers could have sensible information. They could be exploded and used to attack internal/external assets. Nuage will help to microsegment containers and even put security instances … Continue reading Scale out #Kubernetes with #Nuage: Installation notes

#Kubernetes in a few steps

Howdy, There’s a lot online info how to set your kubernetes cluster. This is what I found as the simplest to install your own local one. I am using my own lab server with Centos7 and qemu-kvm. I’ve created two servers called k8scluster and k8snode01 using centos7 cloud images (check the script here) I have a local DNS server based on bind. I’ve created both … Continue reading #Kubernetes in a few steps