(this document is a work-in-progress, it is not complete, so you should visit this document from time to time to see if anything has changed) The AWS Solution Architect Associate exam content contains these sections: Domain 1: Design Secure Architectures (30%) 1.1: Design secure access to AWS resources. Cross account …

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Python Virtual Environments If you're running myltiple python project on your computer, you may want use a tool that handles python virtual environments, for reasons such as: be able to install different libraries and modules for each project Use different versions of python for different projects This is especially …

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(this post if part of the material I cover in my devops course) What is DNS Informally, we could say that DNS (Domain Name System) allows users to use names instead of IP addresses. The initial thinking was that names are easier to remember and work with, so users will find it easier to use them. In fact, DNS is part …

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(this post if part of the material I cover in my devops course) NAT - What problem are we going to solve There are several types of NAT (Network Address Translation) We are going to address here the most complex one, because it is what you would usually encounter in your home/caffee etc. Other types of NAT are usefull …

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(this post if part of the material I cover in my devops course) About Parameter Expansion This post is based on th shell parameter expansion documentation. The ‘$’ character introduces several expansions: parameter expansion command substitution arithmetic expansion Parameter expansion mainly replaces a parameter …

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(this post if part of the material I cover in my devops course) About tilde expansion This post is based on the bash tilde expansion documentation. Let's say that you enter several letters, and them the ~ (tilde) character. If non of the letters are quoted, then bash will try to treat these letters as a login name. It …

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(this post if part of the material I cover in my devops course) About Brace Expansions This post is based on the documentation of bash brace expansion. Brace expansion is a mechanism that creates strings The basic syntax is: optional preanble (an opening string) a series of comma-separated strings or a sequence …

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(this post if part of the material I cover in my devops course) Shell Operation Covered here in bash documentation. The shell reads its input from one of these: an input from a file from a string supplied as an argument to the -c invocation option from the user’s terminal Breaks the input into words and operators, …

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(these posts are part of the material I cover in my devops course) Create a demo repository Create a new demo repository in github and clone twice: 1cd ../../a/demo/ 2git clone <your demo repository url> 3cd ../../b/demo/ 4git clone <your demo repository url> Create basic feature1 branch (same in both …

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(these posts are part of the material I cover in my devops course) Create Repositories Go to your github account anc create a public repository. (I have created one called demo) This is just a training session, so you will remove this repository when you're done. Locally, create a working directory (called demowork), …

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