Refactor rackula-install.sh to streamline installation

Removed checks for security headers config file and adjusted installation steps for Bun and Rackula.

ct/headers/rackula

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+    ____             __         __     
+   / __ \____ ______/ /____  __/ /___ _
+  / /_/ / __ `/ ___/ //_/ / / / / __ `/
+ / _, _/ /_/ / /__/ ,< / /_/ / / /_/ / 
+/_/ |_|\__,_/\___/_/|_|\__,_/_/\__,_/  
+                                       

ct/rackula.sh

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+#!/usr/bin/env bash
+source <(curl -fsSL https://raw.githubusercontent.com/community-scripts/ProxmoxVE/main/misc/build.func)
+# Copyright (c) 2021-2026 community-scripts ORG
+# Author: gVNS (ggfevans)
+# License: MIT | https://github.com/community-scripts/ProxmoxVE/raw/main/LICENSE
+# Source: https://github.com/RackulaLives/Rackula
+
+APP="Rackula"
+var_tags="${var_tags:-homelab}"
+var_cpu="${var_cpu:-1}"
+var_ram="${var_ram:-512}"
+var_disk="${var_disk:-8}"
+var_os="${var_os:-debian}"
+var_version="${var_version:-13}"
+var_arm64="${var_arm64:-yes}"
+var_unprivileged="${var_unprivileged:-1}"
+
+header_info "$APP"
+variables
+color
+catch_errors
+
+function update_script() {
+  header_info
+  check_container_storage
+  check_container_resources
+
+  if [[ ! -d /opt/rackula ]]; then
+    msg_error "No ${APP} Installation Found!"
+    exit 1
+  fi
+
+  if check_for_gh_release "rackula" "RackulaLives/Rackula"; then
+    msg_info "Stopping Services"
+    systemctl stop rackula-api nginx
+    msg_ok "Stopped Services"
+
+    create_backup /opt/rackula/data
+    CLEAN_INSTALL=1 fetch_and_deploy_gh_release "rackula" "RackulaLives/Rackula" "prebuild" "latest" "/opt/rackula" "rackula-lxc-*.tar.gz"
+    restore_backup
+
+    msg_info "Updating Configuration"
+    cp /opt/rackula/config/nginx.conf /etc/nginx/sites-available/rackula
+    cp /opt/rackula/config/security-headers.conf /etc/nginx/snippets/security-headers.conf
+    cp /opt/rackula/config/rackula-api.service /etc/systemd/system/rackula-api.service
+    if grep -q '^User=' /etc/systemd/system/rackula-api.service; then
+      sed -i 's/^User=.*/User=root/' /etc/systemd/system/rackula-api.service
+    else
+      sed -i '/^\[Service\]/a User=root' /etc/systemd/system/rackula-api.service
+    fi
+    if grep -q '^Group=' /etc/systemd/system/rackula-api.service; then
+      sed -i 's/^Group=.*/Group=root/' /etc/systemd/system/rackula-api.service
+    else
+      sed -i '/^\[Service\]/a Group=root' /etc/systemd/system/rackula-api.service
+    fi
+    mkdir -p /etc/systemd/system/nginx.service.d
+    cp /opt/rackula/config/nginx.service.d-override.conf /etc/systemd/system/nginx.service.d/override.conf
+    chown -R root:root /opt/rackula/frontend
+    find /opt/rackula/frontend -type d -exec chmod 755 {} \;
+    find /opt/rackula/frontend -type f -exec chmod 644 {} \;
+    chmod 750 /opt/rackula/data
+    msg_ok "Updated Configuration"
+
+    msg_info "Starting Services"
+    $STD nginx -t
+    systemctl daemon-reload
+    systemctl start nginx rackula-api
+    msg_ok "Started Services"
+    msg_ok "Updated successfully!"
+  fi
+  exit
+}
+
+start
+build_container
+description
+
+msg_ok "Completed Successfully!\n"
+echo -e "${CREATING}${GN}${APP} setup has been successfully initialized!${CL}"
+echo -e "${INFO}${YW} Access it using the following URL:${CL}"
+echo -e "${TAB}${GATEWAY}${BGN}http://${IP}${CL}"

install/rackula-install.sh

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+#!/usr/bin/env bash
+
+# Copyright (c) 2021-2026 community-scripts ORG
+# Author: gVNS (ggfevans)
+# License: MIT | https://github.com/community-scripts/ProxmoxVE/raw/main/LICENSE
+# Source: https://github.com/RackulaLives/Rackula
+
+source /dev/stdin <<<"$FUNCTIONS_FILE_PATH"
+color
+verb_ip6
+catch_errors
+setting_up_container
+network_check
+update_os
+
+msg_info "Installing Dependencies"
+$STD apt install -y nginx
+msg_ok "Installed Dependencies"
+
+msg_info "Installing Bun"
+export BUN_INSTALL="/opt/bun"
+curl -fsSL https://bun.sh/install | $STD bash
+ln -sf /opt/bun/bin/bun /usr/local/bin/bun
+msg_ok "Installed Bun"
+
+fetch_and_deploy_gh_release "rackula" "RackulaLives/Rackula" "prebuild" "latest" "/opt/rackula" "rackula-lxc-*.tar.gz"
+
+msg_info "Setting up Rackula"
+mkdir -p /opt/rackula/data /etc/nginx/snippets
+SECURITY_HEADERS_SRC="/opt/rackula/config/security-headers.conf"
+cp "$SECURITY_HEADERS_SRC" /etc/nginx/snippets/security-headers.conf
+chown -R root:root /opt/rackula/frontend
+find /opt/rackula/frontend -type d -exec chmod 755 {} \;
+find /opt/rackula/frontend -type f -exec chmod 644 {} \;
+chmod 750 /opt/rackula/data
+
+API_WRITE_TOKEN=$(openssl rand -hex 32)
+cat <<EOF >/opt/rackula/data/.env
+RACKULA_API_WRITE_TOKEN=${API_WRITE_TOKEN}
+CORS_ORIGIN=http://localhost
+ALLOW_INSECURE_CORS=false
+EOF
+chmod 600 /opt/rackula/data/.env
+
+cat <<EOF >/etc/nginx/snippets/rackula-api-token.conf
+map \$host \$rackula_api_write_token {
+  default "${API_WRITE_TOKEN}";
+}
+map \$host \$rackula_has_api_write_token {
+  default 1;
+}
+EOF
+chmod 640 /etc/nginx/snippets/rackula-api-token.conf
+msg_ok "Set up Rackula"
+
+msg_info "Configuring nginx"
+cp /opt/rackula/config/nginx.conf /etc/nginx/sites-available/rackula
+rm -f /etc/nginx/sites-enabled/default
+ln -sf /etc/nginx/sites-available/rackula /etc/nginx/sites-enabled/rackula
+$STD nginx -t
+msg_ok "Configured nginx"
+
+msg_info "Creating Services"
+cp /opt/rackula/config/rackula-api.service /etc/systemd/system/rackula-api.service
+if grep -q '^User=' /etc/systemd/system/rackula-api.service; then
+  sed -i 's/^User=.*/User=root/' /etc/systemd/system/rackula-api.service
+else
+  sed -i '/^\[Service\]/a User=root' /etc/systemd/system/rackula-api.service
+fi
+if grep -q '^Group=' /etc/systemd/system/rackula-api.service; then
+  sed -i 's/^Group=.*/Group=root/' /etc/systemd/system/rackula-api.service
+else
+  sed -i '/^\[Service\]/a Group=root' /etc/systemd/system/rackula-api.service
+fi
+mkdir -p /etc/systemd/system/nginx.service.d
+cp /opt/rackula/config/nginx.service.d-override.conf /etc/systemd/system/nginx.service.d/override.conf
+systemctl daemon-reload
+systemctl enable -q nginx rackula-api
+systemctl restart nginx rackula-api
+msg_ok "Created Services"
+
+motd_ssh
+customize
+cleanup_lxc