garage_ynh/scripts/upgrade
2021-04-08 20:21:51 +02:00

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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..." --time --weight=1
app=$YNH_APP_INSTANCE_NAME
domain=$(ynh_app_setting_get --app=$app --key=domain)
path_url=$(ynh_app_setting_get --app=$app --key=path)
admin=$(ynh_app_setting_get --app=$app --key=admin)
final_path=$(ynh_app_setting_get --app=$app --key=final_path)
language=$(ynh_app_setting_get --app=$app --key=language)
db_name=$(ynh_app_setting_get --app=$app --key=db_name)
#=================================================
# CHECK VERSION
#=================================================
### This helper will compare the version of the currently installed app and the version of the upstream package.
### $upgrade_type can have 2 different values
### - UPGRADE_APP if the upstream app version has changed
### - UPGRADE_PACKAGE if only the YunoHost package has changed
### ynh_check_app_version_changed will stop the upgrade if the app is up to date.
### UPGRADE_APP should be used to upgrade the core app only if there's an upgrade to do.
upgrade_type=$(ynh_check_app_version_changed)
#=================================================
# ENSURE DOWNWARD COMPATIBILITY
#=================================================
ynh_script_progression --message="Ensuring downward compatibility..." --time --weight=1
#
# N.B. : the followings setting migrations snippets are provided as *EXAMPLES*
# of what you may want to do in some cases (e.g. a setting was not defined on
# some legacy installs and you therefore want to initiaze stuff during upgrade)
#
# If db_name doesn't exist, create it
#if [ -z "$db_name" ]; then
# db_name=$(ynh_sanitize_dbid --db_name=$app)
# ynh_app_setting_set --app=$app --key=db_name --value=$db_name
#fi
# If final_path doesn't exist, create it
#if [ -z "$final_path" ]; then
# final_path=/var/www/$app
# ynh_app_setting_set --app=$app --key=final_path --value=$final_path
#fi
### If nobody installed your app before 4.1,
### then you may safely remove these lines
# Cleaning legacy permissions
if ynh_legacy_permissions_exists; then
ynh_legacy_permissions_delete_all
ynh_app_setting_delete --app=$app --key=is_public
fi
if ! ynh_permission_exists --permission="admin"; then
# Create the required permissions
ynh_permission_create --permission="admin" --url="/admin" --allowed=$admin
fi
# Create a permission if needed
if ! ynh_permission_exists --permission="api"; then
ynh_permission_create --permission="api" --url "/api" --allowed="visitors" --show_tile="false" --protected="true"
fi
#=================================================
# BACKUP BEFORE UPGRADE THEN ACTIVE TRAP
#=================================================
ynh_script_progression --message="Backing up the app before upgrading (may take a while)..." --time --weight=1
# Backup the current version of the app
ynh_backup_before_upgrade
ynh_clean_setup () {
# Restore it if the upgrade fails
ynh_restore_upgradebackup
}
# Exit if an error occurs during the execution of the script
ynh_abort_if_errors
#=================================================
# STANDARD UPGRADE STEPS
#=================================================
# STOP SYSTEMD SERVICE
#=================================================
ynh_script_progression --message="Stopping a systemd service..." --time --weight=1
ynh_systemd_action --service_name=$app --action="stop" --log_path="/var/log/$app/$app.log"
#=================================================
# CREATE DEDICATED USER
#=================================================
ynh_script_progression --message="Making sure dedicated system user exists..." --time --weight=1
# Create a dedicated user (if not existing)
ynh_system_user_create --username=$app --home_dir="$final_path"
#=================================================
# DOWNLOAD, CHECK AND UNPACK SOURCE
#=================================================
if [ "$upgrade_type" == "UPGRADE_APP" ]
then
ynh_script_progression --message="Upgrading source files..." --time --weight=1
# Download, check integrity, uncompress and patch the source from app.src
ynh_setup_source --dest_dir="$final_path"
fi
# FIXME: this should be managed by the core in the future
# Here, as a packager, you may have to tweak the ownerhsip/permissions
# such that the appropriate users (e.g. maybe www-data) can access
# files in some cases.
# But FOR THE LOVE OF GOD, do not allow r/x for "others" on the entire folder -
# this will be treated as a security issue.
chmod 750 "$final_path"
chmod -R o-rwx "$final_path"
chown -R root: "$final_path"
chown root:$app "$final_path"
#=================================================
# NGINX CONFIGURATION
#=================================================
ynh_script_progression --message="Upgrading NGINX web server configuration..." --time --weight=1
# Create a dedicated NGINX config
ynh_add_nginx_config
#=================================================
# UPGRADE DEPENDENCIES
#=================================================
ynh_script_progression --message="Upgrading dependencies..." --time --weight=1
ynh_install_app_dependencies $pkg_dependencies
#=================================================
# PHP-FPM CONFIGURATION
#=================================================
ynh_script_progression --message="Upgrading PHP-FPM configuration..." --time --weight=1
# Create a dedicated PHP-FPM config
ynh_add_fpm_config
#=================================================
# SPECIFIC UPGRADE
#=================================================
# ...
#=================================================
#=================================================
# SETUP SYSTEMD
#=================================================
ynh_script_progression --message="Upgrading systemd configuration..." --time --weight=1
# Create a dedicated systemd config
ynh_add_systemd_config
#=================================================
# UPDATE A CONFIG FILE
#=================================================
### Same as during install
###
### The file will automatically be backed-up if it's found to be manually modified (because
### ynh_add_config keeps track of the file's checksum)
ynh_add_config --template="some_config_file" --destination="$final_path/some_config_file"
# FIXME: this should be handled by the core in the future
# You may need to use chmod 600 instead of 400,
# for example if the app is expected to be able to modify its own config
chmod 400 "$final_path/some_config_file"
chown $app:$app "$final_path/some_config_file"
### For more complex cases where you want to replace stuff using regexes,
### you shoud rely on ynh_replace_string (which is basically a wrapper for sed)
### When doing so, you also need to manually call ynh_store_file_checksum
###
### ynh_replace_string --match_string="match_string" --replace_string="replace_string" --target_file="$final_path/some_config_file"
### ynh_store_file_checksum --file="$final_path/some_config_file"
#=================================================
# GENERIC FINALIZATION
#=================================================
# SETUP LOGROTATE
#=================================================
ynh_script_progression --message="Upgrading logrotate configuration..." --time --weight=1
# Use logrotate to manage app-specific logfile(s)
ynh_use_logrotate --non-append
#=================================================
# INTEGRATE SERVICE IN YUNOHOST
#=================================================
ynh_script_progression --message="Integrating service in YunoHost..." --time --weight=1
yunohost service add $app --description="A short description of the app" --log="/var/log/$app/$app.log"
#=================================================
# START SYSTEMD SERVICE
#=================================================
ynh_script_progression --message="Starting a systemd service..." --time --weight=1
ynh_systemd_action --service_name=$app --action="start" --log_path="/var/log/$app/$app.log"
#=================================================
# UPGRADE FAIL2BAN
#=================================================
ynh_script_progression --message="Reconfiguring Fail2Ban..." --time --weight=1
# Create a dedicated Fail2Ban config
ynh_add_fail2ban_config --logpath="/var/log/nginx/${domain}-error.log" --failregex="Regex to match into the log for a failed login"
#=================================================
# RELOAD NGINX
#=================================================
ynh_script_progression --message="Reloading NGINX web server..." --time --weight=1
ynh_systemd_action --service_name=nginx --action=reload
#=================================================
# END OF SCRIPT
#=================================================
ynh_script_progression --message="Upgrade of $app completed" --time --last