Preparation of documents

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Manuel Vergara 2022-10-29 21:10:27 +02:00
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---
title: '#90DaysOfDevOps - Application Focused - Day 3'
published: false
description: 90DaysOfDevOps - Application Focused
tags: 'devops, 90daysofdevops, learning'
cover_image: null
canonical_url: null
id: 1048825
---
## DevOps Lifecycle - Application Focused
As we continue through these next few weeks we are 100% going to come across these titles (Continuous Development, Testing, Deployment, Monitor) over and over again, If you are heading towards the DevOps Engineer role then repeatability will be something you will get used to but constantly enhancing each time is another thing that keeps things interesting.

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---
title: '#90DaysOfDevOps - DevOps & Agile - Day 4'
published: false
description: 90DaysOfDevOps - DevOps & Agile
tags: 'devops, 90daysofdevops, learning'
cover_image: null
canonical_url: null
id: 1048700
---
## DevOps & Agile
Do you know the difference between DevOps and Agile? They were formed as standalone concepts. But now the two terms are getting fused.

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---
title: '#90DaysOfDevOps - Plan > Code > Build > Testing > Release > Deploy > Operate > Monitor > - Day 5'
published: false
description: 90DaysOfDevOps - Plan > Code > Build > Testing > Release > Deploy > Operate > Monitor >
tags: 'devops, 90daysofdevops, learning'
cover_image: null
canonical_url: null
id: 1048830
---
## Plan > Code > Build > Testing > Release > Deploy > Operate > Monitor >
Today we are going to focus on the individual steps from start to finish and the continuous cycle of an Application in a DevOps world.

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---
title: '#90DaysOfDevOps - DevOps - The real stories - Day 6'
published: false
description: 90DaysOfDevOps - DevOps - The real stories
tags: 'devops, 90daysofdevops, learning'
cover_image: null
canonical_url: null
id: 1048855
---
## DevOps - The real stories
DevOps to begin with was seen to be out of reach for a lot of us as we didn't have companies like Netflix or a fortune 500 company practising it but I think that now it's beginning to sway into the normal as businesses start adopting a DevOps practice.

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---
title: '#90DaysOfDevOps - The Big Picture: Learning a Programming Language - Day 7'
published: false
description: 90DaysOfDevOps - The Big Picture DevOps & Learning a Programming Language
tags: 'devops, 90daysofdevops, learning'
cover_image: null
canonical_url: null
id: 1048856
---
## The Big Picture: DevOps & Learning a Programming Language
I think it is fair to say to be successful in the long term as a DevOps engineer you've got to know at least one programming language at a foundational level. I want to take this first session of this section to explore why this is such a critical skill to have, and hopefully, by the end of this week or section, you are going to have a better understanding of the why, how and what to do to progress with your learning journey.

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---
title: '#90DaysOfDevOps - Setting up your DevOps environment for Go & Hello World - Day 8'
published: false
description: 90DaysOfDevOps - Setting up your DevOps environment for Go & Hello World
tags: 'devops, 90daysofdevops, learning'
cover_image: null
canonical_url: null
id: 1048857
---
## Setting up your DevOps environment for Go & Hello World
Before we get into some of the fundamentals of Go we should get Go installed on our workstation and do what every "learning programming 101" module teaches us which is to create the Hello World app. As this one is going to be walking through the steps to get Go installed on your workstation we are going to attempt to document the process in pictures so people can easily follow along.

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---
title: '#90DaysOfDevOps - Let''s explain the Hello World code - Day 9'
published: false
description: 90DaysOfDevOps - Let's explain the Hello World code
tags: 'devops, 90daysofdevops, learning'
cover_image: null
canonical_url: null
id: 1099682
---
## Let's explain the Hello World code
### How Go works

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---
title: '#90DaysOfDevOps - The Go Workspace - Day 10'
published: false
description: 90DaysOfDevOps - The Go Workspace
tags: 'devops, 90daysofdevops, learning'
cover_image: null
canonical_url: null
id: 1048701
---
### The Go Workspace
On [Day 8](day08.md) we briefly covered the Go workspace to get Go up and running to get to the demo of `Hello #90DaysOfDevOps` But we should explain a little more about the Go workspace.

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---
title: '#90DaysOfDevOps - Variables & Constants in Go - Day 11'
published: false
description: 90DaysOfDevOps - Variables & Constants in Go
tags: 'devops, 90daysofdevops, learning'
cover_image: null
canonical_url: null
id: 1048862
---
Before we get into the topics for today I want to give a massive shout out to [Techworld with Nana](https://www.youtube.com/watch?v=yyUHQIec83I) and this fantastic concise journey through the fundamentals of Go.
On [Day8](day08.md) we set our environment up, on [Day9](day09.md) we walked through the Hello #90DaysOfDevOps code and on [Day10](day10.md)) we looked at our Go workspace and went a little deeper into compiling and running the code.

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---
title: '#90DaysOfDevOps - Getting user input with Pointers and a finished program - Day 12'
published: false
description: 90DaysOfDevOps - Getting user input with Pointers and a finished program
tags: 'devops, 90daysofdevops, learning'
cover_image: null
canonical_url: null
id: 1048864
---
## Getting user input with Pointers and a finished program
Yesterday ([Day 11](day11.md)), we created our first Go program that was self-contained and the parts we wanted to get user input for were created as variables within our code and given values, we now want to ask the user for their input to give the variable the value for the end message.

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---
title: '#90DaysOfDevOps - Tweet your progress with our new App - Day 13'
published: false
description: 90DaysOfDevOps - Tweet your progress with our new App
tags: 'devops, 90daysofdevops, learning'
cover_image: null
canonical_url: null
id: 1048865
---
## Tweet your progress with our new App
On the final day of looking into this programming language, we have only just touched the surface here of the language but it is at that start that I think we need to get interested and excited and want to dive more into it.

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---
title: '#90DaysOfDevOps - The Big Picture: DevOps and Linux - Day 14'
published: false
description: 90DaysOfDevOps - The Big Picture DevOps and Linux
tags: 'devops, 90daysofdevops, learning'
cover_image: null
canonical_url: null
id: 1049033
---
## The Big Picture: DevOps and Linux
Linux and DevOps share very similar cultures and perspectives; both are focused on customization and scalability. Both of these aspects of Linux are of particular importance for DevOps.

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---
title: '#90DaysOfDevOps - Linux Commands for DevOps (Actually everyone) - Day 15'
published: false
description: 90DaysOfDevOps - Linux Commands for DevOps (Actually everyone)
tags: 'devops, 90daysofdevops, learning'
cover_image: null
canonical_url: null
id: 1048834
---
## Linux Commands for DevOps (Actually everyone)
I mentioned [yesterday](day14.md) that we are going to be spending a lot of time in the terminal with some commands to get stuff done.

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---
title: '#90DaysOfDevOps - Managing your Linux System, Filesystem & Storage - Day 16'
published: false
description: '90DaysOfDevOps - Managing your Linux System, Filesystem & Storage'
tags: 'devops, 90daysofdevops, learning'
cover_image: null
canonical_url: null
id: 1048702
---
## Managing your Linux System, Filesystem & Storage
So far we have had a brief overview of Linux and DevOps and then we got our lab environment set up using Vagrant [(Day 14)](day14.md), we then touched on a small portion of commands that will be in your daily toolkit when in the terminal and getting things done [(Day 15)](day15.md).

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---
title: '#90DaysOfDevOps - Text Editors - nano vs vim - Day 17'
published: false
description: 90DaysOfDevOps - Text Editors - nano vs vim
tags: 'devops, 90daysofdevops, learning'
cover_image: null
canonical_url: null
id: 1048703
---
## Text Editors - nano vs vim
The majority of your Linux systems are going to be servers and these are not going to have a GUI. I also mentioned in the last session that Linux is mostly made up of configuration files, to make changes you are going to need to be able to edit those configuration files to change anything on the system.

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---
title: '#90DaysOfDevOps - SSH & Web Server - Day 18'
published: false
description: 90DaysOfDevOps - SSH & Web Server
tags: 'devops, 90daysofdevops, learning'
cover_image: null
canonical_url: null
id: 1048733
---
## SSH & Web Server
As we have mentioned throughout you are going to most likely be managing lots of remote Linux servers, because of this, you will need to make sure that your connectivity to these remote servers is secure. In this section, we want to cover some of the basics of SSH that everyone should know that will help you with that secure tunnel to your remote systems.

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---
title: '#90DaysOfDevOps - Automate tasks with bash scripts - Day 19'
published: false
description: 90DaysOfDevOps - Automate tasks with bash scripts
tags: 'devops, 90daysofdevops, learning'
cover_image: null
canonical_url: null
id: 1048774
---
## Automate tasks with bash scripts
The shell that we are going to use today is the bash but we will cover another shell tomorrow when we dive into ZSH.

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---
title: '#90DaysOfDevOps - Dev workstation setup - All the pretty things - Day 20'
published: false
description: 90DaysOfDevOps - Dev workstation setup - All the pretty things
tags: 'devops, 90daysofdevops, learning'
cover_image: null
canonical_url: null
id: 1048734
---
## Dev workstation setup - All the pretty things
Not to be confused with us setting Linux servers up this way but I wanted to also show off the choice and flexibility that we have within the Linux desktop.

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---
title: '#90DaysOfDevOps - The Big Picture: DevOps and Networking - Day 21'
published: false
description: 90DaysOfDevOps - The Big Picture DevOps and Networking
tags: 'devops, 90daysofdevops, learning'
cover_image: null
canonical_url: null
id: 1048761
---
## The Big Picture: DevOps and Networking
As with all sections, I am using open and free training materials and a lot of the content can be attributed to others. In the case of the networking section a large majority of the content shown is from [Practical Networking](https://www.practicalnetworking.net/)'s free [Networking Fundamentals series](https://www.youtube.com/playlist?list=PLIFyRwBY_4bRLmKfP1KnZA6rZbRHtxmXi). It is mentioned in the resources as well as a link but it's appropriate to highlight this as from a community point of view, I have leveraged this course to help myself understand more about particular areas of technologies. This repository is a repository for my note taking and enabling the community to hopefully benefit from this and the listed resources.

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---
title: '#90DaysOfDevOps - The OSI Model - The 7 Layers - Day 22'
published: false
description: 90DaysOfDevOps - The OSI Model - The 7 Layers
tags: 'devops, 90daysofdevops, learning'
cover_image: null
canonical_url: null
id: 1049037
---
The content below comes mostly from Practical Networking's [Networking Fundamentals series](https://www.youtube.com/playlist?list=PLIFyRwBY_4bRLmKfP1KnZA6rZbRHtxmXi). If you prefer this content in video form, check out these two videos:
* [The OSI Model: A Practical Perspective - Layers 1 / 2 / 3](https://www.youtube.com/watch?v=LkolbURrtTs&list=PLIFyRwBY_4bRLmKfP1KnZA6rZbRHtxmXi&index=3)

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---
title: '#90DaysOfDevOps - Network Protocols - Day 23'
published: false
description: 90DaysOfDevOps - Network Protocols
tags: 'devops, 90daysofdevops, learning'
cover_image: null
canonical_url: null
id: 1048704
---
The content below comes mostly from Practical Networking's [Networking Fundamentals series](https://www.youtube.com/playlist?list=PLIFyRwBY_4bRLmKfP1KnZA6rZbRHtxmXi). If you prefer this content in video form, check out this video:
* [Network Protocols - ARP, FTP, SMTP, HTTP, SSL, TLS, HTTPS, DNS, DHCP](https://www.youtube.com/watch?v=E5bSumTAHZE&list=PLIFyRwBY_4bRLmKfP1KnZA6rZbRHtxmXi&index=12)

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---
title: '#90DaysOfDevOps - Network Automation - Day 24'
published: false
description: 90DaysOfDevOps - Network Automation
tags: 'devops, 90daysofdevops, learning'
cover_image: null
canonical_url: null
id: 1048805
---
## Network Automation
### Basics of network automation

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---
title: '#90DaysOfDevOps - Python for Network Automation - Day 25'
published: false
description: 90DaysOfDevOps - Python for Network Automation
tags: 'devops, 90daysofdevops, learning'
cover_image: null
canonical_url: null
id: 1049038
---
## Python for Network Automation
Python is the standard language used for automated network operations.

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---
title: '#90DaysOfDevOps - Building our Lab - Day 26'
published: false
description: 90DaysOfDevOps - Building our Lab
tags: 'devops, 90daysofdevops, learning'
cover_image: null
canonical_url: null
id: 1048762
---
## Building our Lab
We are going to continue our setup of our emulated network using EVE-NG and then hopefully get some devices deployed and start thinking about how we can automate the configuration of these devices. On [Day 25](day25.md) we covered the installation of EVE-NG onto our machine using VMware Workstation.

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---
title: '#90DaysOfDevOps - Getting Hands-On with Python & Network - Day 27'
published: false
description: 90DaysOfDevOps - Getting Hands-On with Python & Network
tags: 'devops, 90daysofdevops, learning'
cover_image: null
canonical_url: null
id: 1048735
---
## Getting Hands-On with Python & Network
In this final section of Networking fundamentals, we are going to cover some automation tasks and tools with our lab environment created on [Day 26](day26.md)

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---
title: '#90DaysOfDevOps - The Big Picture: DevOps & The Cloud - Day 28'
published: false
description: 90DaysOfDevOps - The Big Picture DevOps & The Cloud
tags: 'devops, 90daysofdevops, learning'
cover_image: null
canonical_url: null
id: 1048737
---
## The Big Picture: DevOps & The Cloud
When it comes to cloud computing and what is offered, it goes very nicely with the DevOps ethos and processes. We can think of Cloud Computing as bringing the technology and services whilst DevOps as we have mentioned many times before is about the process and process improvement.

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---
title: '#90DaysOfDevOps - Microsoft Azure Fundamentals - Day 29'
published: false
description: 90DaysOfDevOps - Microsoft Azure Fundamentals
tags: 'devops, 90daysofdevops, learning'
cover_image: null
canonical_url: null
id: 1048705
---
## Microsoft Azure Fundamentals
Before we get going, the winner of the Twitter poll was Microsoft Azure, hence the title of the page. It was close and also quite interesting to see the results come in over the 24 hours.

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---
title: '#90DaysOfDevOps - Microsoft Azure Security Models - Day 30'
published: false
description: 90DaysOfDevOps - Microsoft Azure Security Models
tags: 'devops, 90daysofdevops, learning'
cover_image: null
canonical_url: null
id: 1049039
---
## Microsoft Azure Security Models
Following on from the Microsoft Azure Overview, we are going to start with Azure Security and see where this can help in our day to day. For the most part, I have found the built-in roles have been sufficient but knowing that we can create and work with many different areas of authentication and configurations. I have found Microsoft Azure to be quite advanced with its Active Directory background compared to other public clouds.

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---
title: '#90DaysOfDevOps - Microsoft Azure Compute Models - Day 31'
published: false
description: 90DaysOfDevOps - Microsoft Azure Compute Models
tags: 'devops, 90daysofdevops, learning'
cover_image: null
canonical_url: null
id: 1049040
---
## Microsoft Azure Compute Models
Following on from covering the basics around security models within Microsoft Azure yesterday today we are going to look into the various compute services available to us in Azure.

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---
title: '#90DaysOfDevOps - Microsoft Azure Storage Models - Day 32'
published: false
description: 90DaysOfDevOps - Microsoft Azure Storage Models
tags: 'devops, 90daysofdevops, learning'
cover_image: null
canonical_url: null
id: 1048775
---
## Microsoft Azure Storage Models
### Storage Services

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---
title: '#90DaysOfDevOps - Microsoft Azure Networking Models + Azure Management - Day 33'
published: false
description: 90DaysOfDevOps - Microsoft Azure Networking Models + Azure Management
tags: 'devops, 90daysofdevops, learning'
cover_image: null
canonical_url: null
id: 1048706
---
## Microsoft Azure Networking Models + Azure Management
As if today marks the anniversary of Microsoft Azure and its 12th Birthday! (1st February 2022) Anyway, we are going to cover the networking models within Microsoft Azure and some of the management options for Azure. So far we have only used the Azure portal but we have mentioned other areas that can be used to drive and create our resources within the platform.

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---
title: '#90DaysOfDevOps - Microsoft Azure Hands-On Scenarios - Day 34'
published: false
description: 90DaysOfDevOps - Microsoft Azure Hands-On Scenarios
tags: 'DevOps, 90daysofdevops, learning'
cover_image: null
canonical_url: null
id: 1048763
---
## Microsoft Azure Hands-On Scenarios
The last 6 days have been focused on Microsoft Azure and the public cloud in general, a lot of this foundation had to contain a lot of theory to understand the building blocks of Azure but also this will nicely translate to the other major cloud providers as well.

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---
title: '#90DaysOfDevOps - The Big Picture: Git - Version Control - Day 35'
published: false
description: 90DaysOfDevOps - The Big Picture Git - Version Control
tags: 'devops, 90daysofdevops, learning'
cover_image: null
canonical_url: null
id: 1049041
---
## The Big Picture: Git - Version Control
Before we get into git, we need to understand what version control is and why? In this opener for Git, we will take a look at what version control is, and the basics of git.

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---
title: '#90DaysOfDevOps - Installing & Configuring Git - Day 36'
published: false
description: 90DaysOfDevOps - Installing & Configuring Git
tags: 'devops, 90daysofdevops, learning'
cover_image: null
canonical_url: null
id: 1048738
---
## Installing & Configuring Git
Git is an open source, cross-platform tool for version control. If you are like me, using Ubuntu or most Linux environments you might find that you already have git installed but we are going to run through the install and configuration.

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---
title: '#90DaysOfDevOps - Gitting to know Git - Day 37'
published: false
description: 90DaysOfDevOps - Gitting to know Git
tags: 'DevOps, 90daysofdevops, learning'
cover_image: null
canonical_url: null
id: 1048707
---
## Gitting to know Git
Apologies for the terrible puns in the title and throughout. I am surely not the first person to turn Git into a dad joke!

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---
title: '#90DaysOfDevOps - Staging & Changing - Day 38'
published: false
description: 90DaysOfDevOps - Staging & Changing
tags: 'devops, 90daysofdevops, learning'
cover_image: null
canonical_url: null
id: 1049042
---
## Staging & Changing
We have already covered some of the basics but putting things into a walkthrough makes it better for me to learn and understand how and why we are doing it this way. Before we get into any git-based services such as GitHub, git has its powers that we can take advantage of on our local workstation.

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---
title: '#90DaysOfDevOps - Viewing, unstaging, discarding & restoring - Day 39'
published: false
description: '90DaysOfDevOps - Viewing, unstaging, discarding & restoring'
tags: 'devops, 90daysofdevops, learning'
cover_image: null
canonical_url: null
id: 1048827
---
## Viewing, unstaging, discarding & restoring
Continuing from where we finished yesterday around some of the commands that we have with git and how to leverage git with your projects. Remember we have not touched GitHub or any other git-based services yet this is all to help you keep control of your projects locally at the moment, but they will all become useful when we start to integrate into those tools.

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---
title: '#90DaysOfDevOps - Social Network for code - Day 40'
published: false
description: 90DaysOfDevOps - Social Network for code
tags: 'devops, 90daysofdevops, learning'
cover_image: null
canonical_url: null
id: 1049044
---
## Social Network for code
Exploring GitHub | GitLab | BitBucket

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---
title: '#90DaysOfDevOps - The Big Picture: Containers - Day 42'
published: false
description: 90DaysOfDevOps - The Big Picture Containers
tags: 'devops, 90daysofdevops, learning'
cover_image: null
canonical_url: null
id: 1048826
---
## The Big Picture: Containers
We are now starting the next section and this section is going to be focused on containers in particular we are going to be looking into Docker getting into some of the key areas to understand more about Containers.

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---
title: '#90DaysOfDevOps - What is Docker & Getting installed - Day 43'
published: false
description: 90DaysOfDevOps - What is Docker & Getting installed
tags: 'devops, 90daysofdevops, learning'
cover_image: null
canonical_url: null
id: 1048739
---
## What is Docker & Getting installed
In the previous post, I mentioned Docker at least once and that is because Docker is innovative in making containers popular even though they have been around for such a long time.

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---
title: '#90DaysOfDevOps - Docker Images & Hands-On with Docker Desktop - Day 44'
published: false
description: 90DaysOfDevOps - Docker Images & Hands-On with Docker Desktop
tags: 'devops, 90daysofdevops, learning'
cover_image: null
canonical_url: null
id: 1048708
---
## Docker Images & Hands-On with Docker Desktop
We now have Docker Desktop installed on our system. (If you are running Linux then you still have options but no GUI but docker does work on Linux.)[Install Docker Engine on Ubuntu](https://docs.docker.com/engine/install/ubuntu/) (Other distributions also available.)

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---
title: '#90DaysOfDevOps - The anatomy of a Docker Image - Day 45'
published: false
description: 90DaysOfDevOps - The anatomy of a Docker Image
tags: 'DevOps, 90daysofdevops, learning'
cover_image: null
canonical_url: null
id: 1048777
---
## The anatomy of a Docker Image
In the last session, we covered some basics of how we can use Docker Desktop combined with DockerHub to deploy and run some verified images. A recap on what an image is, you won't forget things if I keep mentioning them.

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---
title: '#90DaysOfDevOps - Docker Compose - Day 46'
published: false
description: 90DaysOfDevOps - Docker Compose
tags: 'devops, 90daysofdevops, learning'
cover_image: null
canonical_url: null
id: 1048740
---
## Docker Compose
The ability to run one container could be great if you have a self-contained image that has everything you need for your single use case, where things get interesting is when you are looking to build multiple applications between different container images. For example, if I had a website front end but required a backend database I could put everything in one container but better and more efficient would be to have its container for the database.

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---
title: '#90DaysOfDevOps - Docker Networking & Security - Day 47'
published: false
description: 90DaysOfDevOps - Docker Networking & Security
tags: 'devops, 90daysofdevops, learning'
cover_image: null
canonical_url: null
id: 1049078
---
## Docker Networking & Security
During this container session so far we have made things happen but we have not looked at how things have worked behind the scenes either from a networking point of view also we have not touched on security, that is the plan for this session.

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---
title: '#90DaysOfDevOps - Alternatives to Docker - Day 48'
published: false
description: 90DaysOfDevOps - Alternatives to Docker
tags: 'devops, 90daysofdevops, learning'
cover_image: null
canonical_url: null
id: 1048807
---
## Alternatives to Docker
I did say at the very beginning of this section that we were going to be using Docker, simply because resource wise there is so much and the community is very big, but also this was really where the indents to making containers popular came from. I would encourage you to go and watch some of the history around Docker and how it came to be, I found it very useful.

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---
title: '#90DaysOfDevOps - The Big Picture: Kubernetes - Day 49'
published: false
description: 90DaysOfDevOps - The Big Picture Kubernetes
tags: 'devops, 90daysofdevops, learning'
cover_image: null
canonical_url: null
id: 1049049
---
## The Big Picture: Kubernetes
In the last section we covered Containers, Containers fall short when it comes to scale and orchestration alone. The best we can do is use docker-compose to bring up multiple containers together. When it comes to Kubernetes which is a Container Orchestrator, this gives us the ability to scale up and down in an automated way or based on a load of your applications and services.

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---
title: '#90DaysOfDevOps - Choosing your Kubernetes platform - Day 50'
published: false
description: 90DaysOfDevOps - Choosing your Kubernetes platform
tags: 'devops, 90daysofdevops, learning'
cover_image: null
canonical_url: null
id: 1049046
---
## Choosing your Kubernetes platform
I wanted to use this session to break down some of the platforms or maybe distributions is a better term to use here, one thing that has been a challenge in the Kubernetes world is removing complexity.

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---
title: '#90DaysOfDevOps - Deploying your first Kubernetes Cluster - Day 51'
published: false
description: 90DaysOfDevOps - Deploying your first Kubernetes Cluster
tags: 'DevOps, 90daysofdevops, learning'
cover_image: null
canonical_url: null
id: 1048778
---
## Deploying your first Kubernetes Cluster
In this post we are going to get a Kubernetes cluster up and running on our local machine using minikube, this will give us a baseline Kubernetes cluster for the rest of the Kubernetes section, although we will look at deploying a Kubernetes cluster also in VirtualBox later on. The reason for choosing this method vs spinning a managed Kubernetes cluster up in the public cloud is that this is going to cost money even with the free tier, I shared some blogs though if you would like to spin up that environment in the previous section [Day 50](day50.md).

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---
title: '#90DaysOfDevOps - Setting up a multinode Kubernetes Cluster - Day 52'
published: false
description: 90DaysOfDevOps - Setting up a multinode Kubernetes Cluster
tags: 'devops, 90daysofdevops, learning'
cover_image: null
canonical_url: null
id: 1049050
---
## Setting up a multinode Kubernetes Cluster
I wanted this title to be "Setting up a multinode Kubernetes cluster with Vagrant" but thought it might be a little too long!

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---
title: '#90DaysOfDevOps - Rancher Overview - Hands On - Day 53'
published: false
description: 90DaysOfDevOps - Rancher Overview - Hands On
tags: 'devops, 90daysofdevops, learning'
cover_image: null
canonical_url: null
id: 1048742
---
## Rancher Overview - Hands On
In this section we are going to take a look at Rancher, so far everything we have done has been in the cli and using kubectl but we have a few good UIs and multi-cluster management tools to give our operations teams good visibility into our cluster management.

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---
title: '#90DaysOfDevOps - Kubernetes Application Deployment - Day 54'
published: false
description: 90DaysOfDevOps - Kubernetes Application Deployment
tags: 'devops, 90daysofdevops, learning'
cover_image: null
canonical_url: null
id: 1048764
---
## Kubernetes Application Deployment
Now we finally get to deploying some applications into our clusters, some would say this is the reason Kubernetes exists, for Application delivery.

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---
title: '#90DaysOfDevOps - State and Ingress in Kubernetes - Day 55'
published: false
description: 90DaysOfDevOps - State and Ingress in Kubernetes
tags: 'DevOps, 90daysofdevops, learning'
cover_image: null
canonical_url: null
id: 1048779
---
## State and Ingress in Kubernetes
In this closing section of Kubernetes, we are going to take a look at State and ingress.

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---
title: '#90DaysOfDevOps - The Big Picture: IaC - Day 56'
published: false
description: 90DaysOfDevOps - The Big Picture IaC
tags: 'devops, 90daysofdevops, learning'
cover_image: null
canonical_url: null
id: 1048709
---
## The Big Picture: IaC
Humans make mistakes! Automation is the way to go!

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---
title: '#90DaysOfDevOps - An intro to Terraform - Day 57'
published: false
description: 90DaysOfDevOps - An intro to Terraform
tags: 'devops, 90daysofdevops, learning'
cover_image: null
canonical_url: null
id: 1048710
---
## An intro to Terraform
"Terraform is a tool for building, changing, and versioning infrastructure safely and efficiently"

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---
title: '#90DaysOfDevOps - HashiCorp Configuration Language (HCL) - Day 58'
published: false
description: 90DaysOfDevOps - HashiCorp Configuration Language (HCL)
tags: 'devops, 90daysofdevops, learning'
cover_image: null
canonical_url: null
id: 1048741
---
## HashiCorp Configuration Language (HCL)
Before we start making stuff with Terraform we have to dive a little into HashiCorp Configuration Language (HCL). So far during our challenge, we have looked at a few different scripting and programming languages and here is another one. We touched on the [Go programming language](day07.md) then [bash scripts](day19.md) we even touched on a little python when it came to [network automation](day27.md)

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---
title: '#90DaysOfDevOps - Create a VM with Terraform & Variables - Day 59'
published: false
description: 90DaysOfDevOps - Create a VM with Terraform & Variables
tags: 'devops, 90daysofdevops, learning'
cover_image: null
canonical_url: null
id: 1049051
---
## Create a VM with Terraform & Variables
In this session, we are going to be creating a VM or two VMs using terraform inside VirtualBox. This is not normal, VirtualBox is a workstation virtualisation option and this would not be a use case for Terraform but I am currently 36,000ft in the air and as much as I have deployed public cloud resources this high in the clouds it is much faster to do this locally on my laptop.

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---
title: '#90DaysOfDevOps - Docker Containers, Provisioners & Modules - Day 60'
published: false
description: '90DaysOfDevOps - Docker Containers, Provisioners & Modules'
tags: 'devops, 90daysofdevops, learning'
cover_image: null
canonical_url: null
id: 1049052
---
## Docker Containers, Provisioners & Modules
On [Day 59](day59.md) we provisioned a virtual machine using Terraform to our local FREE VirtualBox environment. In this section, we are going to deploy a Docker container with some configuration to our local Docker environment.

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---
title: '#90DaysOfDevOps - Kubernetes & Multiple Environments - Day 61'
published: false
description: 90DaysOfDevOps - Kubernetes & Multiple Environments
tags: 'devops, 90daysofdevops, learning'
cover_image: null
canonical_url: null
id: 1048743
---
## Kubernetes & Multiple Environments
So far during this section on Infrastructure as code, we have looked at deploying virtual machines albeit to VirtualBox but the premise is the same really as we define in code what we want our virtual machine to look like and then we deploy. The same for Docker containers and in this session, we are going to take a look at how Terraform can be used to interact with resources supported by Kubernetes.

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---
title: '#90DaysOfDevOps - Testing, Tools & Alternatives - Day 62'
published: false
description: '90DaysOfDevOps - Testing, Tools & Alternatives'
tags: 'devops, 90daysofdevops, learning'
cover_image: null
canonical_url: null
id: 1049053
---
## Testing, Tools & Alternatives
As we close out this section on Infrastructure as Code we must mention testing our code, the various tools available and then some of the alternatives to Terraform to achieve this. As I said at the start of the section my focus was on Terraform because it is firstly free and open source, secondly, it is cross-platform and agnostic to environments. But there are also alternatives out there that should be considered but the overall goal is to make people aware that this is the way to deploy your infrastructure.

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---
title: '#90DaysOfDevOps - The Big Picture: Configuration Management - Day 63'
published: false
description: 90DaysOfDevOps - The Big Picture Configuration Management
tags: 'devops, 90daysofdevops, learning'
cover_image: null
canonical_url: null
id: 1048711
---
## The Big Picture: Configuration Management
Coming straight off the back of the section covering Infrastructure as Code, there is likely going to be some crossover as we talk about Configuration Management or Application Configuration Management.

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---
title: '#90DaysOfDevOps - Ansible: Getting Started - Day 64'
published: false
description: '90DaysOfDevOps - Ansible: Getting Started'
tags: 'devops, 90daysofdevops, learning'
cover_image: null
canonical_url: null
id: 1048765
---
## Ansible: Getting Started
We covered a little about what Ansible is in the [big picture session yesterday](day63.md) But we are going to get started with a little more information on top of that here. Firstly Ansible comes from RedHat. Secondly, it is agentless, connects via SSH and runs commands. Thirdly it is cross-platform (Linux & macOS, WSL2) and open-source (there is also a paid-for enterprise option) Ansible pushes configuration vs other models.

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---
title: '#90DaysOfDevOps - Ansible Playbooks - Day 65'
published: false
description: 90DaysOfDevOps - Ansible Playbooks
tags: 'devops, 90daysofdevops, learning'
cover_image: null
canonical_url: null
id: 1049054
---
### Ansible Playbooks
In this section we will take a look at the main reason that I can see at least for Ansible, I mean it is great to take a single command and hit many different servers to perform simple commands such as rebooting a long list of servers and saving the hassle of having to connect to each one individually.

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---
title: '#90DaysOfDevOps - Ansible Playbooks Continued... - Day 66'
published: false
description: 90DaysOfDevOps - Ansible Playbooks Continued...
tags: 'devops, 90daysofdevops, learning'
cover_image: null
canonical_url: null
id: 1048712
---
## Ansible Playbooks (Continued)
In our last section, we started with creating our small lab using a Vagrantfile to deploy 4 machines and we used the Linux machine we created in that section as our ansible control system.

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---
title: '#90DaysOfDevOps - Using Roles & Deploying a Loadbalancer - Day 67'
published: false
description: '90DaysOfDevOps - Using Roles & Deploying a Loadbalancer'
tags: 'devops, 90daysofdevops, learning'
cover_image: null
canonical_url: null
id: 1048713
---
## Using Roles & Deploying a Loadbalancer
In the last session, we covered roles and used the `ansible-galaxy` command to help create our folder structures for some roles that we are going to use. We finished up with a much tidier working repository for our configuration code as everything is hidden away in our role folders.

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@ -1,13 +1,3 @@
---
title: '#90DaysOfDevOps - Tags, Variables, Inventory & Database Server config - Day 68'
published: false
description: '90DaysOfDevOps - Tags, Variables, Inventory & Database Server config'
tags: 'devops, 90daysofdevops, learning'
cover_image: null
canonical_url: null
id: 1048780
---
## Tags, Variables, Inventory & Database Server config
### Tags

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---
title: '#90DaysOfDevOps - All other things Ansible - Automation Controller (Tower), AWX, Vault - Day 69'
published: false
description: '90DaysOfDevOps - All other things Ansible - Automation Controller (Tower), AWX, Vault'
tags: 'devops, 90daysofdevops, learning'
cover_image: null
canonical_url: null
id: 1048714
---
## All other things Ansible - Automation Controller (Tower), AWX, Vault
Rounding out the section on Configuration Management I wanted to have a look into the other areas that you might come across when dealing with Ansible.

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---
title: '#90DaysOfDevOps - The Big Picture: CI/CD Pipelines - Day 70'
published: false
description: 90DaysOfDevOps - The Big Picture CI/CD Pipelines
tags: 'devops, 90daysofdevops, learning'
cover_image: null
canonical_url: null
id: 1048836
---
## The Big Picture: CI/CD Pipelines
A CI/CD (Continuous Integration/Continuous Deployment) Pipeline implementation is the backbone of the modern DevOps environment.

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---
title: '#90DaysOfDevOps - What is Jenkins? - Day 71'
published: false
description: 90DaysOfDevOps - What is Jenkins?
tags: 'DevOps, 90daysofdevops, learning'
cover_image: null
canonical_url: null
id: 1048745
---
## What is Jenkins?
Jenkins is a continuous integration tool that allows continuous development, testing and deployment of newly created code.

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---
title: '#90DaysOfDevOps - Getting hands-on with Jenkins - Day 72'
published: false
description: 90DaysOfDevOps - Getting hands-on with Jenkins
tags: 'DevOps, 90daysofdevops, learning'
cover_image: null
canonical_url: null
id: 1048829
---
## Getting hands-on with Jenkins
The plan today is to get some hands-on with Jenkins and make something happen as part of our CI pipeline, looking at some example code bases that we can use.

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@ -1,13 +1,3 @@
---
title: '#90DaysOfDevOps - Building a Jenkins Pipeline - Day 73'
published: false
description: 90DaysOfDevOps - Building a Jenkins Pipeline
tags: 'DevOps, 90daysofdevops, learning'
cover_image: null
canonical_url: null
id: 1048766
---
## Building a Jenkins Pipeline
In the last section, we got Jenkins deployed to our Minikube cluster and we set up a very basic Jenkins Pipeline, that didn't do much at all other than echo out the stages of a Pipeline.

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@ -1,13 +1,3 @@
---
title: '#90DaysOfDevOps - Hello World - Jenkinsfile App Pipeline - Day 74'
published: false
description: 90DaysOfDevOps - Hello World - Jenkinsfile App Pipeline
tags: 'devops, 90daysofdevops, learning'
cover_image: null
canonical_url: null
id: 1048744
---
## Hello World - Jenkinsfile App Pipeline
In the last section, we built a simple Pipeline in Jenkins that would push our docker image from our dockerfile in a public GitHub repository to our private Dockerhub repository.

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---
title: '#90DaysOfDevOps - GitHub Actions Overview - Day 75'
published: false
description: 90DaysOfDevOps - GitHub Actions Overview
tags: 'devops, 90daysofdevops, learning'
cover_image: null
canonical_url: null
id: 1049070
---
## GitHub Actions Overview
In this section, I wanted to move on and take a look at maybe a different approach to what we just spent time on. GitHub Actions is what we will focus on in this session.

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---
title: '#90DaysOfDevOps - ArgoCD Overview - Day 76'
published: false
description: 90DaysOfDevOps - ArgoCD Overview
tags: 'devops, 90daysofdevops, learning'
cover_image: null
canonical_url: null
id: 1048809
---
## ArgoCD Overview
“Argo CD is a declarative, GitOps continuous delivery tool for Kubernetes”

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---
title: '#90DaysOfDevOps - The Big Picture: Monitoring - Day 77'
published: false
description: 90DaysOfDevOps - The Big Picture Monitoring
tags: 'devops, 90daysofdevops, learning'
cover_image: null
canonical_url: null
id: 1048715
---
## The Big Picture: Monitoring
In this section we are going to talk about monitoring, what is it and why do we need it?

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@ -1,13 +1,3 @@
---
title: '#90DaysOfDevOps - Hands-On Monitoring Tools - Day 78'
published: false
description: 90DaysOfDevOps - Hands-On Monitoring Tools
tags: 'devops, 90daysofdevops, learning'
cover_image: null
canonical_url: null
id: 1049056
---
## Hands-On Monitoring Tools
In the last session, I spoke about the big picture of monitoring and I took a look into Nagios, there were two reasons for doing this. The first was this is a piece of software I have heard a lot of over the years so wanted to know a little more about its capabilities.

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@ -1,13 +1,3 @@
---
title: '#90DaysOfDevOps - The Big Picture: Log Management - Day 79'
published: false
description: 90DaysOfDevOps - The Big Picture Log Management
tags: 'devops, 90daysofdevops, learning'
cover_image: null
canonical_url: null
id: 1049057
---
## The Big Picture: Log Management
A continuation of the infrastructure monitoring challenges and solutions, log management is another puzzle piece to the overall observability jigsaw.

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---
title: '#90DaysOfDevOps - ELK Stack - Day 80'
published: false
description: 90DaysOfDevOps - ELK Stack
tags: 'devops, 90daysofdevops, learning'
cover_image: null
canonical_url: null
id: 1048746
---
## ELK Stack
In this session, we are going to get a little more hands-on with some of the options we have mentioned.

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@ -1,13 +1,3 @@
---
title: '#90DaysOfDevOps - Fluentd & FluentBit - Day 81'
published: false
description: 90DaysOfDevOps - Fluentd & FluentBit
tags: 'devops, 90daysofdevops, learning'
cover_image: null
canonical_url: null
id: 1048716
---
## Fluentd & FluentBit
Another data collector that I wanted to explore as part of this observability section was [Fluentd](https://docs.fluentd.org/). An Open-Source unified logging layer.

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@ -1,13 +1,3 @@
---
title: '#90DaysOfDevOps - EFK Stack - Day 82'
published: false
description: 90DaysOfDevOps - EFK Stack
tags: 'devops, 90daysofdevops, learning'
cover_image: null
canonical_url: null
id: 1049059
---
### EFK Stack
In the previous section, we spoke about ELK Stack, which uses Logstash as the log collector in the stack, in the EFK Stack we are swapping that out for FluentD or FluentBit.

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---
title: '#90DaysOfDevOps - Data Visualisation - Grafana - Day 83'
published: false
description: 90DaysOfDevOps - Data Visualisation - Grafana
tags: 'devops, 90daysofdevops, learning'
cover_image: null
canonical_url: null
id: 1048767
---
## Data Visualisation - Grafana
We saw a lot of Kibana over this section around Observability. But we have to also take some time to cover Grafana. But also they are not the same and they are not completely competing against each other.

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---
title: '#90DaysOfDevOps - The Big Picture: Data Management - Day 84'
published: false
description: 90DaysOfDevOps - The Big Picture Data Management
tags: 'devops, 90daysofdevops, learning'
cover_image: null
canonical_url: null
id: 1048747
---
## The Big Picture: Data Management
![](Images/Day84_Data1.png)

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---
title: '#90DaysOfDevOps - Data Services - Day 85'
published: false
description: 90DaysOfDevOps - Data Services
tags: 'devops, 90daysofdevops, learning'
cover_image: null
canonical_url: null
id: 1048781
---
## Data Services
Databases are going to be the most common data service that we come across in our environments. I wanted to take this session to explore some of those different types of Databases and some of the use cases they each have. Some we have used and seen throughout the challenge.

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---
title: '#90DaysOfDevOps - Backup all the platforms - Day 86'
published: false
description: 90DaysOfDevOps - Backup all the platforms
tags: 'devops, 90daysofdevops, learning'
cover_image: null
canonical_url: null
id: 1049058
---
## Backup all the platforms
During this whole challenge, we discussed many different platforms and environments. One thing all of those have in common is the fact they all need some level of data protection!

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---
title: '#90DaysOfDevOps - Hands-On Backup & Recovery - Day 87'
published: false
description: 90DaysOfDevOps - Hands-On Backup & Recovery
tags: 'devops, 90daysofdevops, learning'
cover_image: null
canonical_url: null
id: 1048717
---
## Hands-On Backup & Recovery
In the last session, we touched on [Kopia](https://kopia.io/) an Open-Source backup tool that we used to get some important data off to a local NAS and off to some cloud-based object storage.

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@ -1,13 +1,3 @@
---
title: '#90DaysOfDevOps - Application Focused Backup - Day 88'
published: false
description: 90DaysOfDevOps - Application Focused Backups
tags: 'devops, 90daysofdevops, learning'
cover_image: null
canonical_url: null
id: 1048749
---
## Application-Focused Backups
We have already spent some time talking about data services or data-intensive applications such as databases on [Day 85](day85.md). For these data services, we have to consider how we manage consistency, especially when it comes to application consistency.

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---
title: '#90DaysOfDevOps - Disaster Recovery - Day 89'
published: false
description: 90DaysOfDevOps - Disaster Recovery
tags: 'devops, 90daysofdevops, learning'
cover_image: null
canonical_url: null
id: 1048718
---
## Disaster Recovery
We have mentioned already how different failure scenarios will warrant different recovery requirements. When it comes to Fire, Flood and Blood scenarios we can consider these mostly disaster situations where we might need our workloads up and running in a completely different location as fast as possible or at least with near-zero recovery time objectives (RTO).

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---
title: '#90DaysOfDevOps - Data & Application Mobility - Day 90'
published: false
description: 90DaysOfDevOps - Data & Application Mobility
tags: 'devops, 90daysofdevops, learning'
cover_image: null
canonical_url: null
id: 1048748
---
## Data & Application Mobility
Day 90 of the #90DaysOfDevOps Challenge! In this final session, I am going to cover the mobility of our data and applications. I am specifically going to focus on Kubernetes but the requirement across platforms and between platforms is something that is an ever-growing requirement and is seen in the field.