Merge pull request 'Add change hostname script' (#3) from wip into main

Reviewed-on: #3

ReadMe.md

@@ -2,5 +2,8 @@
 A collection of scripts intended to simplify setting up and maintianing an Ubuntu server 
 
 ## Scripts
-[Docker](Docker.sh) - Install Docker  
-[Portainer](Portainer.sh) - Install Docker and Portainer Server
+[All In One](Scripts/USE-AIO.sh) - All USE scripts combined together with a menu for selecting which one to run  
+[Docker](Scripts/Docker.sh) - Install Docker  
+[Portainer](Scripts/Portainer.sh) - Install Docker and Portainer Server  
+[Update](Scripts/Update.sh) - Update and clean up unused packages  
+[Change Hostname](Scripts/change_hostname.sh) - Change the hostname for the system

Scripts/USE-AIO.sh

@@ -0,0 +1,109 @@
+#! /bin/bash
+
+clear
+echo "What do you want to do?"
+echo "1. Install Docker"
+echo "2. Install Docker + Portainer Server"
+echo "3. Update System"
+echo "4. Change Hostname"
+echo "5. Exit"
+echo ""
+echo -n "enter your selection(1-4)(5 to exit): " 
+
+while :
+do
+
+read choice
+
+case $choice in 
+1)  echo "Installing Docker..."
+    # Add Docker's official GPG key:
+    sudo apt-get update 1>/dev/null 
+    sudo apt-get install ca-certificates curl -y 1>/dev/null 
+    sudo install -m 0755 -d /etc/apt/keyrings 1>/dev/null 
+    sudo curl -fsSL https://download.docker.com/linux/ubuntu/gpg -o /etc/apt/keyrings/docker.asc 1>/dev/null 
+    sudo chmod a+r /etc/apt/keyrings/docker.asc 1>/dev/null 
+
+    # Add the repository to Apt sources:
+    echo \
+    "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.asc] https://download.docker.com/linux/ubuntu \
+    $(. /etc/os-release && echo "${UBUNTU_CODENAME:-$VERSION_CODENAME}") stable" | \
+    sudo tee /etc/apt/sources.list.d/docker.list > /dev/null
+    sudo apt-get update 1>/dev/null 
+
+    # Install Docker
+    sudo apt-get install docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin -y 1>/dev/null 
+    echo "Done";;
+
+2)  echo "Installing Docker..."
+    # Add Docker's official GPG key:
+    sudo apt-get update 1>/dev/null 
+    sudo apt-get install ca-certificates curl -y 1>/dev/null 
+    sudo install -m 0755 -d /etc/apt/keyrings 1>/dev/null 
+    sudo curl -fsSL https://download.docker.com/linux/ubuntu/gpg -o /etc/apt/keyrings/docker.asc 1>/dev/null 
+    sudo chmod a+r /etc/apt/keyrings/docker.asc 1>/dev/null 
+
+    # Add the repository to Apt sources:
+    echo \
+    "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.asc] https://download.docker.com/linux/ubuntu \
+    $(. /etc/os-release && echo "${UBUNTU_CODENAME:-$VERSION_CODENAME}") stable" | \
+    sudo tee /etc/apt/sources.list.d/docker.list > /dev/null
+    sudo apt-get update 1>/dev/null 
+
+    # Install Docker
+    sudo apt-get install docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin -y 1>/dev/null
+    echo "Done"
+
+    #install Portianer server
+    echo "Installing Portainer..."
+    sudo docker volume create portainer_data 1>/dev/null
+    sudo docker run -d -p 8000:8000 -p 9443:9443 --name portainer --restart=always -v /var/run/docker.sock:/var/run/docker.sock -v portainer_data:/data portainer/portainer-ce:lts 1>/dev/null
+    echo "Done" ;;
+
+3)  echo "Updating repository..."
+    sudo apt-get update 1>/dev/null
+    echo "Done"
+    echo "Installing updates..."
+    sudo apt-get upgrade -y 1>/dev/null
+    echo "Done"
+    echo "Cleaning up unused packages..."
+    sudo apt-get autoremove -y 1>/dev/null
+    echo "Done" ;;
+
+4)  echo ""
+
+    #get current hostname and set it as value of old_host
+    old_host=$(hostname)
+
+    #make backups for hostname and hosts files
+    cp /etc/hostname /etc/hostname.bk
+    cp /etc/hosts /etc/hosts.bk
+
+    #ask user for new host name and set it as value for new_host
+    printf "%s\n" "Hostname must be between 1-63 characters long"
+    printf "%s\n" "Valid characters are (lower case a-z), (0-9), and (-)"
+    printf "%s" "enter new hostname:  "
+    read new_host
+
+    #replace old_host with new_host in hostname and hosts files
+    #set hostname to new_host
+    sed -i 's/'$old_host'/'$new_host'/' /etc/hostname
+    sed -i 's/'$old_host'/'$new_host'/' /etc/hosts
+    hostname $new_host
+
+    #confirm change and tell user to restart system
+    printf "%s\n" "Hostname changed from [$old_host] to [$new_host]"
+    printf "%s\n" "Reboot your system for the change to take effect" ;;
+
+5)  echo "Exiting..."
+    exit ;;
+
+*)  echo "Invalid option" ;;
+
+esac
+
+echo ""
+echo ""
+echo -n "enter your selection(1-4)(5 to exit): " 
+
+done

Scripts/Update.sh

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+#! /bin/bash
+
+
+sudo apt update
+sudo apt upgrade -y
+sudo apt autoremove -y

Scripts/change_hostname.sh

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+#! /bin/bash
+
+clear
+
+#get current hostname and set it as value of old_host
+old_host=$(hostname)
+
+#make backups for hostname and hosts files
+cp /etc/hostname /etc/hostname.bk
+cp /etc/hosts /etc/hosts.bk
+
+#ask user for new host name and set it as value for new_host
+printf "%s\n" "Hostname must be between 1-63 characters long"
+printf "%s\n" "Valid characters are (lower case a-z), (0-9), and (-)"
+printf "%s" "enter new hostname:  "
+read new_host
+
+#replace old_host with new_host in hostname and hosts files
+#set hostname to new_host
+sed -i 's/'$old_host'/'$new_host'/' /etc/hostname
+sed -i 's/'$old_host'/'$new_host'/' /etc/hosts
+hostname $new_host
+
+#confirm change and tell user to restart system
+printf "%s\n" "Hostname changed from [$old_host] to [$new_host]"
+printf "%s\n" "Reboot your system for the change to take effect"