Categories
cloud docker linux

Sysdig container isolation case debugged on kubernetes

Hi,

I didn’t get to actual test anything related to this but i managed to find a very interesting article that might be lost if you are not a sysdig fan. You can find it at following link¬†https://sysdig.com/blog/container-isolation-gone-wrong/

To put into perspective, this tool is used for some very interesting debugging situation, i have played with it some a short period of time and i think i will put in on my list so that i can show you what it can do.

Cheers

Categories
cloud newtools

Small Vagrant config file for Rancher deploy

Hi,

Just wanted to post this also, if it’s not that nice the config using a jumpserver, surely we can convert that to code (Puppet/Ansible), you can also use Vagrant. The main issue that i faced when i tried to create my setup is that for a reason (not really sure why, Vagrant on Windows runs very slow). However, i chose to give you one piece of Vagrantfile for a minimal setup on which you can grab the Rancher server framework and also the client containers.

Here is it:

# -*- mode: ruby -*-
# vi: set ft=ruby :
Vagrant.configure("2") do |config|
config.vm.define "master" do |master|
master.vm.box = "centos/7"
master.vm.hostname = 'master'
master.vm.network "public_network", bridge: "enp0s25"
end
config.vm.define "slave" do |slave|
slave.vm.box = "centos/7"
slave.vm.hostname = 'slave'
slave.vm.network "public_network", bridge: "enp0s25"
end
config.vm.define "swarmmaster" do |swarmmaster|
swarmmaster.vm.box = "centos/7"
swarmmaster.vm.hostname = 'swarmmaster'
swarmmaster.vm.network "public_network", bridge: "enp0s25"
end
config.vm.define "swarmslave" do |swarmclient|
swarmclient.vm.box = "centos/7"
swarmclient.vm.hostname = 'swarmclient'
swarmclient.vm.network "public_network", bridge: "enp0s25"
end
end

 

Do not worry about the naming of the machines, you can change them to whatever you like, the main catch is to bridge the public network in all of them in order to be able to communicate with each other and also have access to the docker hub. Beside that everything else that i posted regarding the registry to the Rancher framework is still valid.

Thank you for your time,

Cheers!

Categories
cloud kafka

Monitoring Kafka with DataDog

Hi,

A very interesting series of articles that should be checked regarding one option of Kafka monitoring with Datadog :

 https://www.datadoghq.com/blog/monitoring-kafka-performance-metrics/.

I will have in the near future a task regarding this, will post the outcome when it’s done.

P.S: It was done and you can find the implementation here :

Integrate Kafka with Datadog monitoring using puppet

As for the metrics point of view we will see if this is really an option, i have tried the same with Prometheus and Grafana and it seems to wok better. Keep you posted

Cheers