New Script: Authelia (#2060)

* fixed subscription nag removal

* Authelia + Dev env

* unbound var fix

* fixes

* service start and update function

* remove dev env

* remove dev env

* Apply suggestions from code review

Co-authored-by: Tobias <96661824+CrazyWolf13@users.noreply.github.com>

* Update authelia.sh

* Update authelia-install.sh

---------

Co-authored-by: Slaviša Arežina <58952836+tremor021@users.noreply.github.com>
Co-authored-by: Tobias <96661824+CrazyWolf13@users.noreply.github.com>

install/authelia-install.sh

@@ -0,0 +1,84 @@
+#!/usr/bin/env bash
+
+# Copyright (c) 2021-2025 community-scripts ORG
+# Author: thost96 (thost96)
+# License: MIT | https://github.com/community-scripts/ProxmoxVE/raw/main/LICENSE
+# Source: https://www.authelia.com/
+
+source /dev/stdin <<< "$FUNCTIONS_FILE_PATH"
+color
+verb_ip6
+catch_errors
+setting_up_container
+network_check
+update_os
+
+msg_info "Installing Dependencies"
+$STD apt-get install -y \
+  curl \
+  sudo \
+  mc 
+msg_ok "Installed Dependencies"
+
+msg_info "Installing Authelia"
+RELEASE=$(curl -s https://api.github.com/repos/authelia/authelia/releases/latest | grep "tag_name" | awk '{print substr($2, 2, length($2)-3) }')
+wget -q "https://github.com/authelia/authelia/releases/download/${RELEASE}/authelia_${RELEASE}_amd64.deb"
+$STD dpkg -i "authelia_${RELEASE}_amd64.deb"
+msg_ok "Install Authelia completed"
+
+msg_info "Setting Authelia up"
+touch /etc/authelia/emails.txt
+JWT_SECRET=$(openssl rand  -hex 64)
+SESSION_SECRET=$(openssl rand  -hex 64)
+STORAGE_KEY=$(openssl rand  -hex 64)
+DOMAIN=$(hostname -d)
+
+cat <<EOF >/etc/authelia/users.yml
+users:
+  authelia:
+    disabled: false
+    displayname: "Authelia Admin"
+    password: "$argon2id$v=19$m=65536,t=3,p=4$ZBopMzXrzhHXPEZxRDVT2w$SxWm96DwhOsZyn34DLocwQEIb4kCDsk632PuiMdZnig"
+    groups: []
+EOF
+
+cat <<EOF >/etc/authelia/configuration.yml
+authentication_backend:
+  file:
+    path: /etc/authelia/users.yml
+access_control:
+  default_policy: one_factor
+session:
+  secret: "${SESSION_SECRET}"
+  name: 'authelia_session'
+  same_site: 'lax'
+  inactivity: '5m'
+  expiration: '1h'
+  remember_me: '1M'
+  cookies:
+    - domain: "${DOMAIN}"
+      authelia_url: "https://auth.${DOMAIN}"
+storage:
+  encryption_key: "${STORAGE_KEY}"
+  local:
+    path: /etc/authelia/db.sqlite
+identity_validation:
+  reset_password:
+    jwt_secret: "${JWT_SECRET}"
+    jwt_lifespan: '5 minutes'
+    jwt_algorithm: 'HS256'
+notifier:
+  filesystem:
+    filename: /etc/authelia/emails.txt
+EOF
+systemctl enable -q --now authelia
+msg_ok "Authelia Setup completed"
+
+motd_ssh
+customize
+
+msg_info "Cleaning up"
+rm -f "authelia_${RELEASE}_amd64.deb"
+$STD apt-get -y autoremove
+$STD apt-get -y autoclean
+msg_ok "Cleaned"