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MultiCloud Classroom notes 30/Nov/20255 days ago

Public Networks vs Private Networks

A public network is directly accesible over internet
A private network is not directly accessible over internet.
- For private networks we have reserved ip ranges
  - 192.168.0.0/16 => 192.168.0.0 to 192.168.255.255
  - 172.16.0.0/12 => 172.16.0.0 to 172.31.255.255
  - 10.0.0.0/8 => 10.0.0.0 to ...

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DevOps Classroom notes 30/Nov/20255 days ago

What does it take to run a container

Things to have
- a docker installed on a system (docker host)
- docker image
Containers generally have server side applications which are accessible over network.
Docker supports port forwarding between container networks and host networks
Examine the following command wher...

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DevOps Classroom notes 29/Nov/20256 days ago

Creating Azure Kubernetes Service using Terraform

Ways of Working with Terraform:
- Ensure you are aware of manual creation steps and make a note of inputs
- For each resource created, express a desired state in terraform template
- For multi user working enable backends
- For multi user and multi environment enable backends + workspaces

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MultiCloud Classroom notes 29/Nov/20256 days ago

Creating networks

If we stick to decimals the possible subnet masks are
- 255.255.255.0 => 2^8 – 2 = 254
- 255.255.0.0 => 2^16 – 2 ~= 65000
- 255.0.0.0 => 2^24 – 2
If i want a network of size 500 then subnet mask would tb 255.255.0.0
To solve this problem we use CIDR (Classless interdomain Routing...

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DevOps Classroom notes 29/Nov/20256 days ago

Docker components

When we install docker we get the following components
- docker client
- docker daemon
- local storage
client => command line application
Docker can be installed on
- windows
- linux
- mac

Play with docker

We will use a href="h...

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