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wireguard_ynh/scripts/upgrade
2022-01-29 12:16:37 +00:00

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#!/bin/bash
#=================================================
# GENERIC START
#=================================================
# IMPORT GENERIC HELPERS
#=================================================
source _common.sh
source /usr/share/yunohost/helpers
#=================================================
# LOAD SETTINGS
#=================================================
ynh_script_progression --message="Loading installation settings..." --weight=1
app=$YNH_APP_INSTANCE_NAME
domain=$(ynh_app_setting_get --app=$app --key=domain)
path_url=$(ynh_app_setting_get --app=$app --key=path)
port=$(ynh_app_setting_get --app=$app --key=port)
port_wg=$(ynh_app_setting_get --app=$app --key=port_wg)
final_path=$(ynh_app_setting_get --app=$app --key=final_path)
architecture=$YNH_ARCH
#=================================================
# CHECK VERSION
#=================================================
upgrade_type=$(ynh_check_app_version_changed)
#=================================================
# BACKUP BEFORE UPGRADE THEN ACTIVE TRAP
#=================================================
ynh_script_progression --message="Backing up the app before upgrading (may take a while)..." --weight=1
# Backup the current version of the app
ynh_backup_before_upgrade
ynh_clean_setup () {
# restore it if the upgrade fails
ynh_restore_upgradebackup
}
# Exit if an error occurs during the execution of the script
ynh_abort_if_errors
#=================================================
# ENSURE DOWNWARD COMPATIBILITY
#=================================================
ynh_script_progression --message="Ensuring downward compatibility..." --weight=1
# If final_path doesn't exist, create it
if [ -z "$final_path" ]; then
final_path=/opt/yunohost/$app
ynh_app_setting_set --app=$app --key=final_path --value=$final_path
fi
# Change port if WireGuard port is the same as WireGuard UI's
if [ $port -eq $port_wg ]
then
ynh_app_setting_delete --app=$app --key=port
port=$(ynh_find_port --port=$(($port_wg+1)))
ynh_app_setting_set --app=$app --key=port --value=$port
# Let's remove the unused is_public key too
ynh_app_setting_delete --app=$app --key=is_public
fi
# WireGuard UI should be private, really.
if ynh_permission_has_user --permission=main --user=visitors
then
ynh_permission_update --permission=main --remove=visitors
fi
# Downgrade linux-image-$arch if updated to the buster-backports version
linuximage_version=$(ynh_package_version --package=linux-image-$architecture)
if [[ $linuximage_version == *"bpo10"* ]]
then
# Downgrading using ynh_package_install apt command without "--no-remove" and with "--allow-downgrades"
# It will remove wireguard-ynh-deps and wireguard but they will be reinstalled throught upgrade process
ynh_apt --allow-downgrades --option Dpkg::Options::=--force-confdef \
--option Dpkg::Options::=--force-confold install linux-image-$architecture/stable
#Remove backports kernel if running on it and send a mail to the admin to ask him to reboot
linuxkernel_version=$(uname -r)
if [[ $linuxkernel_version == *"bpo"* ]]
then
ynh_package_remove linux-image-$linuxkernel_version
echo "You've been using an experimental version of wireguard_ynh, which was using the backports version of the linux kernel.
Now wireguard_ynh use a DKMS module allowing itself to be used with the stable kernel, then the backports one was removed and a reboot is needed to go back to the stable one." > mail_to_send
ynh_send_readme_to_admin --app_message="mail_to_send" --recipients="admin" --type=upgrade
fi
fi
# Drop sudoers file if present
if [ -f "/etc/sudoers.d/${app}_ynh" ]; then
ynh_secure_remove /etc/sudoers.d/${app}_ynh
fi
# Remove deprecated services
if systemctl list-units --full -all | grep -Fq "wireguard_ui_conf.path"; then
systemctl disable --now --quiet wireguard_ui_conf.path
ynh_secure_remove --file="/etc/systemd/system/wireguard_ui_conf.path"
fi
if systemctl list-units --full -all | grep -Fq "wireguard_ui_conf.service"; then
systemctl disable --now --quiet wireguard_ui_conf.service
ynh_secure_remove --file="/etc/systemd/system/wireguard_ui_conf.service"
fi
#=================================================
# STANDARD UPGRADE STEPS
#=================================================
# STOP SYSTEMD SERVICE
#=================================================
ynh_script_progression --message="Stopping a systemd service..." --weight=1
ynh_systemd_action --service_name=wireguard_ui --action="stop" --line_match="Stopped WireGuard UI" --log_path="systemd" --timeout=30
ynh_systemd_action --service_name=wireguard@wg0 --action="stop"
#=================================================
# DOWNLOAD, CHECK AND UNPACK SOURCE
#=================================================
if [ "$upgrade_type" == "UPGRADE_APP" ]
then
ynh_script_progression --message="Upgrading source files..." --weight=1
# Download, check integrity, uncompress and patch the source from app.src
ynh_setup_source --dest_dir="$final_path" --source_id="$architecture"
fi
#=================================================
# UPDATE A CONFIG FILE
#=================================================
ynh_script_progression --message="Updating a configuration file..." --weight=1
# Update configuration for the Web UI
ynh_add_config --template="../conf/wireguard-ui.env" --destination="$final_path/wireguard-ui.env"
#=================================================
# NGINX CONFIGURATION
#=================================================
ynh_script_progression --message="Upgrading NGINX web server configuration..." --weight=1
# Create a dedicated nginx config
ynh_add_nginx_config
#=================================================
# UPGRADE DEPENDENCIES
#=================================================
ynh_script_progression --message="Upgrading dependencies..." --weight=7
#TODO: remove buster-backports kernel
# Add buster-backports gpg key
ynh_install_repo_gpg --key="https://ftp-master.debian.org/keys/archive-key-10.asc" --name="$app"
# Add buster-backports repo
ynh_add_repo --uri="http://deb.debian.org/debian" --suite="buster-backports" --component="main" --name="$app"
# Add pin-priority for wireguard packages
ynh_pin_repo --package="wireguard*" --pin="origin deb http://deb.debian.org/debian buster-backports main" --priority=995 --name="$app"
# Update the list of package with the new repo
ynh_package_update
ynh_add_app_dependencies --package="$pkg_dependencies"
# Remove buster-backports repo and pin-priority
ynh_remove_extra_repo --name=$app
#=================================================
# CREATE DEDICATED USER
#=================================================
ynh_script_progression --message="Making sure dedicated system user exists..." --weight=1
# Create a dedicated user (if not existing)
ynh_system_user_create --username=$app
#=================================================
# SETUP SYSTEMD
#=================================================
ynh_script_progression --message="Upgrading systemd configuration..." --weight=1
# Create a dedicated systemd config for the web UI
ynh_add_systemd_config --service=wireguard_ui --template=wireguard_ui.service
# Create dedicated systemd configs for starting and monitoring WireGuard's configuration
cp ../conf/wireguard@.service /etc/systemd/system/wireguard@.service
cp ../conf/wireguard@.path /etc/systemd/system/wireguard@.path
systemctl daemon-reload
systemctl enable --quiet wireguard@wg0.service
systemctl enable --quiet --now wireguard@wg0.path
#=================================================
# ENABLE PORT FORWARDING
#=================================================
ynh_script_progression --message="Enabling port forwarding..." --weight=1
ynh_add_config --template="../conf/sysctl.conf" --destination="/etc/sysctl.d/$app.conf"
sysctl -p /etc/sysctl.d/$app.conf
#=================================================
# GENERIC FINALIZATION
#=================================================
# SECURE FILES AND DIRECTORIES
#=================================================
# Set permissions to app files
chmod 750 "$final_path"
chmod -R o-rwx "$final_path"
chown -R $app: "$final_path"
chmod 750 /etc/wireguard
chmod -R o-rwx /etc/wireguard
chown -R $app: /etc/wireguard
#=================================================
# INTEGRATE SERVICE IN YUNOHOST
#=================================================
ynh_script_progression --message="Integrating service in YunoHost..." --weight=1
yunohost service add wireguard@wg0 --description="WireGuard VPN" --needs_exposed_ports="$port_wg" --test_status="wg show | grep wg0"
yunohost service add wireguard_ui --description="WireGuard UI"
#=================================================
# START SYSTEMD SERVICE
#=================================================
ynh_script_progression --message="Starting the systemd service for the UI..." --weight=1
# Start a systemd service
ynh_systemd_action --service_name=wireguard_ui --action="start" --line_match="http server started" --log_path="systemd" --timeout=30
#=================================================
# RELOAD NGINX
#=================================================
ynh_script_progression --message="Reloading nginx web server..." --weight=1
ynh_systemd_action --service_name=nginx --action=reload
#=================================================
# END OF SCRIPT
#=================================================
ynh_script_progression --message="Upgrade of $app completed. You may need to reboot your server before being able to start the WireGuard service." --last