Securing Network Automation Video Is Online
The awesome Troopers crew published conference videos, including my Securing Network Automation presentation (more, including slide deck).
Learning Python: Week2 (Printing, Numbers, and Lists) -Part 3
As discussed in last post, ( https://crazyrouters.wordpress.com/2017/02/25/learning-python-kirk-byers-python-course/ ) , i will be sharing the my learning on weekly basis as course continues. This will not only motivate me but also help others who are in phase of learning python 3. Here we are going to discuss the Exercise 2 . Here is the Exercise 2 […]
Kubernetes Networking 101 – Ingress resources
I called my last post ‘basic’ external access into the cluster because I didn’t get a chance to talk about the ingress object. Ingress resources are interesting in that they allow you to use one object to load balance to different back-end objects. This could be handy for several reasons and allows you a more fine-grained means to load balance traffic. Let’s take a look at an example of using the Nginx ingress controller in our Kubernetes cluster.
To demonstrate this we’re going to continue using the same lab that we used in previous posts but for the sake of level setting we’re going to start by clearing the slate. Let’s delete all of the objects in the cluster and then we’ll start by build them from scratch so you can see every step of the way how we setup and use the ingress.
kubectl delete deployments --all kubectl delete pods --all kubectl delete services --all
Since this will kill our net-test pod, let’s start that again…
kubectl run net-test --image=jonlangemak/net_tools
Recall that we used this pod as a testing endpoint so we could simulate traffic originating from a pod so it’s worth keeping around.
Alright – now that we Continue reading
Red Hat Gears Up OpenShift For Developers
During the five years that Red Hat has been building out its OpenShift cloud applications platform, much of the focus has been on making it easier to use by customers looking to adapt to an increasingly cloud-centric world for both new and legacy applications. Just as it did with the Linux operating system through Red Hat Enterprise Linux and related middleware and tools, the vendor has worked to make it easier for enterprises to embrace OpenShift.
That has included a major reworking of the platform with the release of version 3.0 last year, which ditched Red Hat’s in-house technologies for …
Red Hat Gears Up OpenShift For Developers was written by Jeffrey Burt at The Next Platform.
Using the Ansible ios_config Module
I get asked often on how to perform specific network automation tasks with Ansible. There were a few questions recently pertaining to the ios_config module within Ansible core, so I decided to record a video to show different options you have when using it to deploy global configuration commands on IOS devices.
Here is a summary of the four (4) options covered:
- Embed commands in your playbook and reference them using the
commands(or lines) parameter. - Use the
srcparameter and reference a configuration file with one or more commands in it. - Use the
srcparameter and reference a Jinja2 template such that it inserts variables into the template, creating a list of commands, and deploys them to a device. - Use two tasks. In Task 1, use the
templatemodule and reference a Jinja2 template to auto-generate a configuration file. In Task 2, use theios_configmodule and reference the config file built in Task 1 to deploy the commands from the file. This is often used instead of option #3 since it allows you to store/view the config file before deploying fully de-coupling the build and deploy processes.
The video does assume some existing knowledge on using Ansible. The Continue reading
Using the Ansible ios_config Module
I get asked often on how to perform specific network automation tasks with Ansible. There were a few questions recently pertaining to the ios_config module within Ansible core, so I decided to record a video to show different options you have when using it to deploy global configuration commands on IOS devices.
Here is a summary of the four (4) options covered:
- Embed commands in your playbook and reference them using the
commands(or lines) parameter. - Use the
srcparameter and reference a configuration file with one or more commands in it. - Use the
srcparameter and reference a Jinja2 template such that it inserts variables into the template, creating a list of commands, and deploys them to a device. - Use two tasks. In Task 1, use the
templatemodule and reference a Jinja2 template to auto-generate a configuration file. In Task 2, use theios_configmodule and reference the config file built in Task 1 to deploy the commands from the file. This is often used instead of option #3 since it allows you to store/view the config file before deploying fully de-coupling the build and deploy processes.
The video does assume some existing knowledge on using Ansible. The Continue reading
China Mobile Tests VNFs with Enea’s Software
Enea works for, and competes with, Ericsson and Nokia.
Viptela Acquisition Enforces Cisco’s Move to Software
Viptela was the SD-WAN market leader in 2016, analyst says.
Lessons Learned From Facebook’s Split Network Backbone
Distributed applications, whether they are containerized or not, have a lot of benefits when it comes to modularity and scale. But in a world of feature creep on all applications, whether they are internally facing ones running a business or hyperscale consumer applications like Google’s search engine or Facebook’s social media network, these distributed applications put a huge strain on the network.
This, more than any other factor, is why network costs are rising faster than any other aspect of the datacenter. Gone are the days when everything was done in three or four tiers, with a Web server like …
Lessons Learned From Facebook’s Split Network Backbone was written by Timothy Prickett Morgan at The Next Platform.
Full Stack Journey 004: Brent Salisbury
Brent Salisbury is today's guest on Full Stack Journey. As someone who transitioned from network engineer to software developer, Brent is ideally suited to share his experiences.
Full Stack Journey 004: Brent Salisbury
Brent Salisbury is today's guest on Full Stack Journey. As someone who transitioned from network engineer to software developer, Brent is ideally suited to share his experiences.
The post Full Stack Journey 004: Brent Salisbury appeared first on Packet Pushers.
