WGDashboard/entrypoint.sh
2024-10-23 16:57:40 +02:00

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No EOL
9.2 KiB
Bash

#!/bin/bash
echo "------------------------- START ----------------------------"
echo "Starting the WireGuard Dashboard Docker container."
ensure_installation() {
# When using a custom directory to store the files, this part moves over and makes sure the installation continues.
echo "Checking if everything is present."
if [ -z "$(ls -A "${WGDASH}")" ]; then
echo "Detected empty directory, moving over..."
# Moving over source files. (This does not include src/db and src/wg-dashboard.ini folder and file.)
mv -v /setup/app/* "${WGDASH}"
if [ ! -d "/data/db" ]; then
echo "Creating database dir"
mkdir /data/db
ln -s /data/db ${WGDASH}/src/db
fi
if [ ! -f "/data/wg-dashboard.ini" ]; then
echo "Creating wg-dashboard.ini file"
touch /data/wg-dashboard.ini
ln -s /data/wg-dashboard.ini ${WGDASH}/src/wg-dashboard.ini
fi
python3 -m venv "${WGDASH}"/src/venv
. "${WGDASH}/src/venv/bin/activate"
mv /usr/lib/python3.12/site-packages/psutil* "${WGDASH}"/src/venv/lib/python3.12/site-packages
mv /usr/lib/python3.12/site-packages/bcrypt* "${WGDASH}"/src/venv/lib/python3.12/site-packages
chmod +x "${WGDASH}"/src/wgd.sh
cd "${WGDASH}"/src || exit
./wgd.sh install
echo "Looks like the installation succesfully moved over."
else
echo "Looks like everything is present. Or the directory is not empty."
fi
# This first step is to ensure the wg0.conf file exists, and if not, then its copied over from the ephemeral container storage.
# This is done so WGDashboard it works out of the box
if [ ! -f "/etc/wireguard/wg0.conf" ]; then
echo "Standard wg0 Configuration file not found, grabbing template."
cp -a "/setup/conf/wg0.conf" "/etc/wireguard/wg0.conf"
echo "Setting a secure private key." # SORRY 4 BE4 - Daan
local privateKey=$(wg genkey)
sed -i "s|^PrivateKey =$|PrivateKey = ${privateKey}|g" /etc/wireguard/wg0.conf
sed -i "s|^PrivateKey *=.*$|PrivateKey = ${privateKey}|g" /etc/wireguard/wg0.conf
echo "Done setting template."
else
echo "Existing wg0 configuration file found, using that."
fi
}
clean_up() {
printf "\n------------------------ CLEAN UP --------------------------\n"
# Cleaning out previous data such as the .pid file and starting the WireGuard Dashboard. Making sure to use the python venv.
echo "Looking for remains of previous instances..."
local pid_file="${WGDASH}/src/gunicorn.pid"
if [ -f "$pid_file" ]; then
echo "Found old pid file, removing."
rm $pid_file
else
echo "No pid remains found, continuing."
fi
# Also check for Python caches (pycache) inspired by https://github.com/shuricksumy
echo "Looking for remains of pycache..."
local pycache="${WGDASH}/src/__pycache__"
if [ -d "$pycache" ]; then
local pycache_filecount=$(find "$pycache" -maxdepth 1 -type f | wc -l)
if [ "$pycache_filecount" -gt 0 ]; then
echo "Found old pycaches, removing."
rm -rf "$pycache"/*
else
echo "No pycaches found, continuing."
fi
else
echo "No pycaches found, continuing."
fi
# Cleaning up the logs from the previous instance.
echo "Cleaning log directory..."
local logdir="${WGDASH}/src/log"
find $logdir -name 'access_*.log' -exec rm {} +
find $logdir -name 'error_*.log' -exec rm {} +
echo "Removed unneeded logs!"
}
set_envvars() {
printf "\n------------- SETTING ENVIRONMENT VARIABLES ----------------\n"
# Path to the configuration file (exists because of previous function).
local config_file="/opt/wireguarddashboard/src/wg-dashboard.ini"
# Check if the file is empty
if [ ! -s "$config_file" ]; then
echo "Config file is empty. Creating [Peers] section."
# Create [Peers] section with initial values
{
echo "[Peers]"
echo "remote_endpoint = ${public_ip}"
echo "peer_global_dns = ${global_dns}"
} > "$config_file"
else
echo "Config file is not empty"
cat /opt/wireguarddashboard/src/wg-dashboard.ini
# Check and update the DNS if it has changed
current_dns=$(grep "peer_global_dns = " "$config_file" | awk '{print $NF}')
if [ "${global_dns}" != "$current_dns" ]; then
echo "Changing default DNS."
sed -i "s/^peer_global_dns = .*/peer_global_dns = ${global_dns}/" "$config_file"
else
echo "DNS is set correctly."
fi
# Determine the public IP and update if necessary
if [ "${public_ip}" = "0.0.0.0" ]; then
default_ip=$(curl -s ifconfig.me)
echo "Trying to fetch the Public-IP using ifconfig.me: ${default_ip}"
sed -i "s/^remote_endpoint = .*/remote_endpoint = ${default_ip}/" "$config_file"
else
current_ip=$(grep "remote_endpoint = " "$config_file" | awk '{print $NF}')
if [ "${public_ip}" != "$current_ip" ]; then
echo "Setting the Public-IP using given variable: ${public_ip}"
sed -i "s/^remote_endpoint = .*/remote_endpoint = ${public_ip}/" "$config_file"
fi
fi
fi
}
# === CORE SERVICES ===
start_core() {
printf "\n---------------------- STARTING CORE -----------------------\n"
echo "Activating Python venv and executing the WireGuard Dashboard service."
. "${WGDASH}"/src/venv/bin/activate
cd "${WGDASH}"/src || return
bash wgd.sh start
# Isolated peers feature, first converting the existing configuration files and the given names to arrays.
#
# WILL BE REMOVED IN FUTURE WHEN WGDASHBOARD ITSELF SUPPORTS THIS!!
#
local configurations=(/etc/wireguard/*)
IFS=',' read -r -a do_isolate <<< "${isolate}"
non_isolate=()
# Checking if there are matches between the two arrays.
for config in "${configurations[@]}"; do
local config=$(echo "$config" | sed -e 's|.*/etc/wireguard/||' -e 's|\.conf$||')
found=false
for interface in "${do_isolate[@]}"; do
if [[ "$config" == "$interface" ]]; then
found=true
break
fi
done
if [ "$found" = false ]; then
non_isolate+=("$config")
fi
done
# Isolating the matches.
for interface in "${do_isolate[@]}"; do
if [ "$interface" = "none" ]; then
echo "Found: $interface, stopping isolation checking."
break
else
if [ -f "/etc/wireguard/${interface}.conf" ]; then
echo "Isolating interface:" $interface
upblocking=$(grep -c "PostUp = iptables -I FORWARD -i ${interface} -o ${interface} -j DROP" /etc/wireguard/${interface}.conf)
downblocking=$(grep -c "PreDown = iptables -D FORWARD -i ${interface} -o ${interface} -j DROP" /etc/wireguard/${interface}.conf)
if [ "$upblocking" -lt 1 ] && [ "$downblocking" -lt 1 ]; then
sed -i "/PostUp =/a PostUp = iptables -I FORWARD -i ${interface} -o ${interface} -j DROP" /etc/wireguard/${interface}.conf
sed -i "/PreDown =/a PreDown = iptables -D FORWARD -i ${interface} -o ${interface} -j DROP" /etc/wireguard/${interface}.conf
fi
else
echo "Configuration for $interface does not seem to exist, continuing."
fi
fi
done
# Removing isolation for the configurations that did not match.
for interface in "${non_isolate[@]}"; do
if [ -f "/etc/wireguard/${interface}.conf" ]; then
echo "Removing Isolation if present for:" $interface
sed -i "/PostUp = iptables -I FORWARD -i ${interface} -o ${interface} -j DROP/d" /etc/wireguard/${interface}.conf
sed -i "/PreDown = iptables -D FORWARD -i ${interface} -o ${interface} -j DROP/d" /etc/wireguard/${interface}.conf
else
echo "Configuration for $interface does not seem to exist, continuing."
fi
done
# The following section takes care of enabling wireguard interfaces on startup. Using arrays and given arguments.
#
# WILL BE REMOVED IN FUTURE WHEN WGDASHBOARD ITSELF SUPPORTS THIS!!
#
IFS=',' read -r -a enable_array <<< "${enable}"
for interface in "${enable_array[@]}"; do
if [ "$interface" = "none" ]; then
echo "Found: $interface, stopping enabling checking."
break
else
echo "Enabling interface:" $interface
local fileperms=$(stat -c "%a" /etc/wireguard/${interface}.conf)
if [ $fileperms -eq 644 ]; then
echo "Configuration is world accessible, adjusting."
chmod 600 "/etc/wireguard/${interface}.conf"
fi
if [ -f "/etc/wireguard/${interface}.conf" ]; then
wg-quick up $interface
else
echo "No corresponding configuration file found for $interface doing nothing."
fi
fi
done
}
# === CLEAN UP ===
ensure_blocking() {
#printf "\n-------------- ENSURING CONTAINER CONTINUATION -------------\n"
sleep 1s
echo -e "\nEnsuring container continuation."
# This function checks if the latest error log is created and tails it for docker logs uses.
if find "/opt/wireguarddashboard/src/log" -mindepth 1 -maxdepth 1 -type f | read -r; then
latestErrLog=$(find /opt/wireguarddashboard/src/log -name "error_*.log" | head -n 1)
latestAccLog=$(find /opt/wireguarddashboard/src/log -name "access_*.log" | head -n 1)
tail -f "${latestErrLog}" "${latestAccLog}"
fi
# Blocking command in case of erroring. So the container does not quit.
sleep infinity
}
# Execute functions for the WireGuard Dashboard services, then set the environment variables
ensure_installation
set_envvars
clean_up
start_core
ensure_blocking