Update ReadMe.md

Signed-off-by: DocRock3r <docrock3r@noreply.localhost>

ReadMe.md

@@ -1,8 +1,14 @@
 # Ubuntu Server Essentials
-A collection of scripts intended to simplify setting up and maintianing an Ubuntu server 
+A collection of scripts and tutorials intended to simplify setting up and maintianing an Ubuntu server 
 
 ## Scripts
 [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  
+[Portainer Server](Scripts/Portainer-Server.sh) - Install Docker and Portainer Server  
+[Portainer Agent](Scripts/Portainer-Agent.sh) - Install Docker and Portianer Agent  
 [Update](Scripts/Update.sh) - Update and clean up unused packages  
+[Change Hostname](Scripts/change_hostname.sh) - Change the hostname for the system  
+
+## Tutorials
+[Expand Drive Space](Tutorials/expand_drive_space.md)  
+[Mount Drive At Boot](Tutorials/automount_drive_at_boot.md)

Scripts/Portainer-Agent.sh

@@ -0,0 +1,25 @@
+#! /bin/bash
+
+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 agent
+    echo "Installing Portainer agent..."
+    sudo docker run -d -p 9001:9001 --name portainer_agent --restart=always -v /var/run/docker.sock:/var/run/docker.sock -v /var/lib/docker/volumes:/var/lib/docker/volumes -v /:/host portainer/agent:lts 1>/dev/null
+    echo "Done" ;;

Scripts/USE-AIO.sh

@@ -4,10 +4,12 @@ clear
 echo "What do you want to do?"
 echo "1. Install Docker"
 echo "2. Install Docker + Portainer Server"
-echo "3. Update system"
+echo "3. Install Docker + Portianer Agent"
-echo "4. Exit"
+echo "4. Update System"
+echo "5. Change Hostname"
+echo "00. Exit"
 echo ""
-echo -n "enter your selection: " 
+echo -n "enter your selection(1-5)(00 to exit): " 
 
 while :
 do
@@ -22,12 +24,14 @@ case $choice in
     sudo install -m 0755 -d /etc/apt/keyrings 1>/dev/null 
     sudo curl -fsSL https://download.docker.com/linux/ubuntu/gpg -o /etc/apt/keyrings/docker.asc 1>/dev/null 
     sudo chmod a+r /etc/apt/keyrings/docker.asc 1>/dev/null 
+
     # Add the repository to Apt sources:
     echo \
     "deb [arch=$(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";;
@@ -39,22 +43,49 @@ case $choice in
     sudo install -m 0755 -d /etc/apt/keyrings 1>/dev/null 
     sudo curl -fsSL https://download.docker.com/linux/ubuntu/gpg -o /etc/apt/keyrings/docker.asc 1>/dev/null 
     sudo chmod a+r /etc/apt/keyrings/docker.asc 1>/dev/null 
+
     # Add the repository to Apt sources:
     echo \
     "deb [arch=$(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..."
+3)  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 agent
+    echo "Installing Portainer agent..."
+    sudo docker run -d -p 9001:9001 --name portainer_agent --restart=always -v /var/run/docker.sock:/var/run/docker.sock -v /var/lib/docker/volumes:/var/lib/docker/volumes -v /:/host portainer/agent:lts 1>/dev/null
+    echo "Done" ;;
+
+4)  echo "Updating repository..."
     sudo apt-get update 1>/dev/null
     echo "Done"
     echo "Installing updates..."
@@ -64,12 +95,40 @@ case $choice in
     sudo apt-get autoremove -y 1>/dev/null
     echo "Done" ;;
 
-4)  echo "Exiting..."
+5)  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" ;;
+
+00)  echo "Exiting..."
     exit ;;
+
 *)  echo "Invalid option" ;;
 
 esac
 
-echo -n "enter your selection: " 
+echo ""
+echo ""
+echo -n "enter your selection(1-5)(00 to exit): " 
 
 done

Scripts/change_hostname.sh

@@ -0,0 +1,26 @@
+#! /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"

Tutorials/automount_drive_at_boot.md

@@ -0,0 +1,34 @@
+## 1. Find the location of the drive using `lsblk`
+- ex. `/dev/sdb`
+
+## 2. Make a new partition on the disk
+1. `fdisk /dev/[location of hdd]`  
+    - ex. `fdisk /dev/sdb`  
+2. `n` to make a new partiton  
+3. `w` to save changes  
+	
+## 3. Confirm that the new partition was created
+- `lsblk`
+    - ex. `/dev/sdb1`
+
+## 4. Make a file system on the new partiton
+- `mkfs -t ext4 /dev/[location of partition]`
+    - ex. `mkfs -t ext4 /dev/sdb1`
+	
+## 5. Make a directory to mount HDD to
+ - `sudo mkdir /mnt/hdd`
+
+## 6. Get the UUID for the drive to be mounted
+- `lsblk -fs`
+
+## 7. Make a backup of /etc/fstab
+- `sudo cp /etc/fstab /etc/fstab.bk`
+- In case anything goes wrong you can restore this backup version
+    - `sudo cp /etc/fstab.bk /etc/fstab`
+
+## 8. Add the new harddrive to /etc/fstab so that it is automatically mounted when the system boots
+1. `sudo nano /etc/fstab`
+2. add the line `UUID=[drive UUID] [mount location] ext4 defaults,auto,rw 0 0`
+    - ex. `UUID=4579acc6-e00d-433b-8087-0a75506e7a9c /mnt/hdd ext4 defaults,auto,rw 0 0`
+	
+## 9. Restart the system to confirm that drive mounts at boot

Tutorials/expand_drive_space.md

@@ -0,0 +1,42 @@
+# Add new partion and add partion to existing LVM	
+## 1. Add new partion using fdisk
+- `sudo fdisk /dev/[drive containing partition you want to expand]`  
+    - ex. if you want to expand partion sda3 you would use `sudo fdisk /dev/sda`  
+- use `p` to list partiton talble  
+use `F` to list free space on drive  
+use `n` to create a new partion  
+use `w` to save changes  
+
+## 2. Add new partion to existing LVM  
+- use `lsblk` to list all drives, partitions, and LVMs  
+### 2.1 Create a new physical volume (pv)  
+- `sudo pvcreate /dev/[partiton you want to use]`  
+    - ex. `sudo pvcreate /dev/sda4`  
+### 2.2 Identify the volume group (vg) you want to use  
+- you can use `sudo vgs` to list all available volume groups  
+### 2.3 Extend volume group  
+- `sudo vgextend [volume group] /dev/[partition]`  
+    - ex. `sudo vgextend ubuntu-vg /dev/sda4`  
+### 2.4 Identify the logical volume (lv) you want to use  
+- you can use `sudo lvs` to list all available logical volumes  
+### 2.5 Extend logical volume  
+- `sudo lvextend -l +100%FREE /dev/[volume group]/[logical volume]`  
+    - ex. `sudo lvextend -l +100%FREE /dev/ubuntu-vg/ubuntu-lv`  
+
+## 3. Resize filesystem so system sees changes  
+- `sudo resize2fs /dev/[volume group]/[logical volume]`  
+    - ex. `sudo resize2fs/dev/ubuntu-vg/ubuntu-lv`  
+
+
+
+
+# Expand existing partion  
+1. `sudo growpart /dev/[disk] [partition number]`  
+    - ex. `sudo growpart /dev/sda 3`  
+    - ***note the space between disk and partion number***  
+2. `sudo resize2fs /dev/[partition]`  
+    - ex. `sudo resize2fs /dev/sda3`  
+
+# Expand existing LVM to use whole partition  
+- `sudo lvextend -l +100%FREE /dev/[volume group]/[logical volume]`  
+    - ex. `sudo lvextend -l +100%FREE /dev/ubuntu-vg/ubuntu-lv`