Labs/Prerequisites.md

 On this page, you will learn how to install all necessary software to run the labs.
 
+# Delete old version of Go if already installed
+
+```bash
+sudo rm -rf /usr/local/go
+```
+
+# Download Go
+
+## Check for latest system updates using the commands below
+
+```bash
+sudo apt update
+sudo apt upgrade
+```
+
+## Download Go using wget
+
+```bash
+wget https://go.dev/dl/go1.20.3.linux-amd64.tar.gz
+```
+
+## Extract the libraries using the tar command and placing it in the correct location
+
+```bash
+sudo tar -C /usr/local/ -xzf go1.20.3.linux-amd64.tar.gz
+cd /usr/local/
+```
+
+## Check if path for Go is already set
+
+```bash
+echo $PATH
+```
+
+## Set path for Go if not set
+
+```bash
+sudo nano $HOME/.profile
+export PATH=$PATH:/usr/local/go/bin
+export GOPATH=$HOME/go
+source $HOME/.profile
+cat $HOME/.profile
+```
+
+## Optional: Set Go path to use with sudo
+
+```bash
+sudo visudo
+```
+
+And add by secure_path at the end:
+
+```bash
+:/usr/local/go/bin
+```
+
+## Check Go version
+
+```bash
+go version
+```
+
+Use
+
+```bash
+ source ~/.profile
+```
+
+to reload your profile in the current shell.
+
+If an error occurs it is recommended to log in again, so the .profile can be applied correctly.
+
+# Install Docker
+
+Use the [**Installation Guide**](https://docs.docker.com/engine/install/) for Windows, MacOS and Linux to install Docker on your machine.
+
+# Install Containerlab
+
+```bash
+bash -c "$(curl -sL https://get.containerlab.dev)"
+```
+
+# Install Make
+
+```bash
+sudo apt install make
+```
+
+# Download the repositories
+
+## Get the goSDN repository from the Gitlab site
+
+Go into the directory where you want to have this repository.  
+
+Get it with SSH:
+
+```bash
+git clone git@code.fbi.h-da.de:danet/gosdn.git
+```
+
+or with HTTPS:
+
+```bash
+git clone https://code.fbi.h-da.de/danet/gosdn.git
+```
+
+You can find the repository with this [link](https://code.fbi.h-da.de/danet/gosdn):
+
+```bash
+https://code.fbi.h-da.de/danet/gosdn
+```
+### Run command init the submodules in the repository gosdn
+
+```bash
+cd gosdn
+git submodule update --init --recursive
+```
+
+## Get the gNMI target repository from the Gitlab site
+
+Get it with SSH:
+
+```bash
+cd ..
+git clone git@code.fbi.h-da.de:danet/gnmi-target.git
+```
+
+or with HTTPS:
+
+```bash
+cd ..
+git clone https://code.fbi.h-da.de/danet/gnmi-target.git
+```
+
+You can find the repository with this [link](https://code.fbi.h-da.de/danet/gnmi-target):
+
+```bash
+https://code.fbi.h-da.de/danet/gnmi-target
+```
+
+### Run command to build the docker image for the gNMI target
+
+Firstly, go to your local gnmi-target repository
+
+```bash
+cd gnmi-target
+```
+Next, build the image:
+
+```bash
+git checkout develop
+make container
+```
+## Login to the code.fbi.h-da.de Repository
+
+```bash
+sudo docker login registry.code.fbi.h-da.de
+```