Update dockeraise.sh

dockeraise.sh

@@ -1,15 +1,25 @@
 #!/bin/bash
 
+export err="\033[1;31m[-]\033[m"
+export msg="\033[1;32m[+]\033[m"
+export info="\033[0;36m[:]\033[m"
+
 # Make sure the script is run as root
 if [[ $EUID -ne 0 ]]; then
-   echo "This script must be run as root" 1>&2
+   echo -e "${err} This script must be run as root." 1>&2
    exit 1
 fi
 
+# Check if Docker is already installed
+if [[ "$(command -v docker)" -ne "" ]]; then
+        echo -e "${err} Docker is already installed."
+        exit 1;
+fi
+
 # Install dependencies 
-echo "[:] Updating repositories..."
+echo -e "${info} Updating repositories..."
 apt-get update &> /dev/null 
-echo "[:] Installing dependencies..."
+echo -e "${info} Installing dependencies..."
 apt-get install -y \
     ca-certificates \
     curl \
@@ -18,30 +28,29 @@ apt-get install -y \
 
 # Add GPG key
 curl -fsSL https://download.docker.com/linux/debian/gpg | gpg --dearmor -o /usr/share/keyrings/docker-archive-keyring.gpg
-echo "[+] Added Docker's GPG key"
+echo -e "${add} Added Docker's GPG key"
 
 # Add repository
 echo \
   "deb [arch=$(dpkg --print-architecture) signed-by=/usr/share/keyrings/docker-archive-keyring.gpg] https://download.docker.com/linux/debian \
   $(lsb_release -cs) stable" | tee /etc/apt/sources.list.d/docker.list &> /dev/null
-echo "[+] Added Docker's stable repository"
+echo -e "${add} Added Docker's stable repository"
 
 # Install Docker
-echo "[:] Updating repositories..."
+echo -e "${info} Updating repositories..."
 apt-get update &> /dev/null
-echo "[:] Installing Docker. Please wait..."
+echo -e "${info} Installing Docker. Please wait..."
 apt-get install -y docker-ce docker-ce-cli containerd.io  &> /dev/null
-echo "[+] Docker successfully installed:"
+echo -e "${add} Docker successfully installed:" $(docker --version)
-docker --version
+
 
 # Install Docker Compose
 while true; do
     read -p "[?] Do you want to install Docker Compose? [y/n] " yn
     case $yn in
-        [Yy]* ) echo "[:] Installing Docker Compose. Please wait...";
+        [Yy]* ) echo -e "${info} Installing Docker Compose. Please wait...";
                apt-get install -y docker-compose  &> /dev/null ;
-               echo "[+] Docker Compose successfully installed:";
+               echo -e "${add} Docker Compose successfully installed:" $(docker-compose --version);
-               docker-compose --version;
                break;;
         [Nn]* ) break;;
         * ) ;;
@@ -53,7 +62,7 @@ while true; do
     read -p "[?] Do you want to create a Docker user? [y/n] " yn
     case $yn in
         [Yy]* ) read -p "Please choose an id for the new user/group: " id;
-               /usr/sbin/groupadd -g $id dockeruser && /usr/sbin/useradd dockeruser -u $id -g $id -m -s /bin/bash && echo "[+] Docker user created:" && id dockeruser; 
+               /usr/sbin/groupadd -g $id dockeruser && /usr/sbin/useradd dockeruser -u $id -g $id -m -s /bin/bash && echo "${add} Docker user created:" && id dockeruser; 
                break;;
         [Nn]* ) break;;
         * ) ;;
@@ -62,6 +71,6 @@ done
 
 # Enable Docker service at startup
 systemctl start docker.service docker.socket containerd && systemctl enable docker.service docker.socket containerd &> /dev/null
-echo "[+] Docker service started and enabled."
+echo -e "${msg} Docker service started and enabled."
 
-echo "Process completed. Run 'systemctl status docker' to check Docker's status."
+echo -e "${info} Process completed. Run '\033[0;36msystemctl status docker\033[m' to check Docker's status."