fix: Correct user references throughout codebase to use ADMIN_USER or current user

- Replace all NEW_USER references with ADMIN_USER or current user
- Fix Samba password prompt to use correct user instead of 'nasadmin'
- Update SSH, Docker, and Samba configurations to use proper user variables
- Ensure consistent user handling across all services
- Remove hardcoded 'nasadmin' references

lib/docker.sh

@@ -115,7 +115,7 @@ install_docker() {
         log_warning "No suitable non-root user found to add to docker group."
         if [[ "${CREATE_NEW_USER_IF_MISSING:-false}" == "true" ]]; then
             local create_user
-            create_user="${NEW_USER:-nasadmin}"
+            create_user="${ADMIN_USER:-${NEW_USER:-nasadmin}}"
             log_info "Creating user '$create_user' and adding to docker group..."
             handle_error sudo useradd -m -s /bin/bash "$create_user"
             handle_error sudo usermod -aG docker "$create_user"

lib/network.sh

@@ -203,16 +203,16 @@ configure_ssh() {
     fi
     
     # Create new user if not exists
-    if ! id "${ADMIN_USER:-$NEW_USER}" &>/dev/null; then
-        log_info "Creating user ${ADMIN_USER:-$NEW_USER}..."
-        sudo useradd -m -s /bin/bash "${ADMIN_USER:-$NEW_USER}"
-        sudo usermod -aG sudo "${ADMIN_USER:-$NEW_USER}"
+    if ! id "${ADMIN_USER:-$USER}" &>/dev/null; then
+        log_info "Creating user ${ADMIN_USER:-$USER}..."
+        sudo useradd -m -s /bin/bash "${ADMIN_USER:-$USER}"
+        sudo usermod -aG sudo "${ADMIN_USER:-$USER}"
         
         # Set password
-        local password=$(ask_password "Set password for user ${ADMIN_USER:-$NEW_USER}")
-        echo "${ADMIN_USER:-$NEW_USER}:$password" | sudo chpasswd
+        local password=$(ask_password "Set password for user ${ADMIN_USER:-$USER}")
+        echo "${ADMIN_USER:-$USER}:$password" | sudo chpasswd
         
-        add_rollback_action "sudo userdel -r ${ADMIN_USER:-$NEW_USER}"
+        add_rollback_action "sudo userdel -r ${ADMIN_USER:-$USER}"
     fi
     
     # Configure SSH hardening
@@ -232,7 +232,7 @@ ClientAliveInterval 300
 ClientAliveCountMax 2
 MaxAuthTries 3
 LoginGraceTime 60
-AllowUsers ${ADMIN_USER:-$NEW_USER}
+AllowUsers ${ADMIN_USER:-$USER}
 Protocol 2
 EOF
 
@@ -280,7 +280,7 @@ setup_samba() {
     # Create shared directory
     local share_dir="/srv/samba/shared"
     sudo mkdir -p "$share_dir"
-    sudo chown "${ADMIN_USER:-$NEW_USER}:${ADMIN_USER:-$NEW_USER}" "$share_dir"
+    sudo chown "${ADMIN_USER:-$USER}:${ADMIN_USER:-$USER}" "$share_dir"
     sudo chmod 755 "$share_dir"
     
     # Configure Samba
@@ -308,14 +308,14 @@ setup_samba() {
     browseable = yes
     writable = yes
     guest ok = no
-    valid users = ${ADMIN_USER:-$NEW_USER}
+    valid users = ${ADMIN_USER:-$USER}
     create mask = 0644
     directory mask = 0755
 EOF
 
     # Add Samba user
-    local samba_password=$(ask_password "Set Samba password for user ${ADMIN_USER:-$NEW_USER}")
-    echo -e "$samba_password\n$samba_password" | sudo smbpasswd -a "${ADMIN_USER:-$NEW_USER}"
+    local samba_password=$(ask_password "Set Samba password for user ${ADMIN_USER:-$USER}")
+    echo -e "$samba_password\n$samba_password" | sudo smbpasswd -a "${ADMIN_USER:-$USER}"
     sudo smbpasswd -e "${ADMIN_USER:-$NEW_USER}"
     
     # Start and enable Samba services

setup.sh

@@ -491,7 +491,7 @@ show_installation_summary() {
     echo
     log_info "Installation Summary:"
     echo "  ✓ System updated and secured"
-    echo "  ✓ User '${ADMIN_USER:-$NEW_USER}' created with sudo access"
+    echo "  ✓ User '${ADMIN_USER:-$USER}' created with sudo access"
     echo "  ✓ SSH configured on port ${SSH_PORT:-$DEFAULT_SSH_PORT}"
     echo "  ✓ Samba file sharing configured"
     echo "  ✓ Firewall configured and enabled"
@@ -531,7 +531,7 @@ show_installation_summary() {
 
 Installation Date: $(date)
 System IP Address: ${ip_address}
-Admin User: ${ADMIN_USER:-$NEW_USER}
+Admin User: ${ADMIN_USER:-$USER}
 SSH Port: ${SSH_PORT:-$DEFAULT_SSH_PORT}
 
 ------------------------------------------------------------
@@ -541,8 +541,8 @@ Installed Services and Access Information:
 SSH Access:
   - Host: ${ip_address}
   - Port: ${SSH_PORT:-$DEFAULT_SSH_PORT}
-  - User: ${ADMIN_USER:-$NEW_USER}
-  - Command: ssh -p ${SSH_PORT:-$DEFAULT_SSH_PORT} ${ADMIN_USER:-$NEW_USER}@${ip_address}
+  - User: ${ADMIN_USER:-$USER}
+  - Command: ssh -p ${SSH_PORT:-$DEFAULT_SSH_PORT} ${ADMIN_USER:-$USER}@${ip_address}
 
 EOF
 
@@ -677,7 +677,7 @@ EOF
     echo
     log_warning "Important: Please save the following information:"
     echo "  - SSH Port: ${SSH_PORT:-$DEFAULT_SSH_PORT}"
-    echo "  - Admin User: ${ADMIN_USER:-$NEW_USER}"
+    echo "  - Admin User: ${ADMIN_USER:-$USER}"
     echo "  - Configuration saved in: ${CONFIG_FILE}"
     echo "  - Installation log: ${LOG_FILE}"
     echo "  - Services summary: ${summary_file}"