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zeronet_ynh/scripts/install
2020-11-09 18:09:10 +05:30

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#!/bin/bash
#=================================================
# GENERIC START
#=================================================
# IMPORT GENERIC HELPERS
#=================================================
source _common.sh
source /usr/share/yunohost/helpers
#=================================================
# MANAGE SCRIPT FAILURE
#=================================================
ynh_clean_setup () {
### Remove this function if there's nothing to clean before calling the remove script.
true
}
# Exit if an error occurs during the execution of the script
ynh_abort_if_errors
#=================================================
# RETRIEVE ARGUMENTS FROM THE MANIFEST
#=================================================
domain=$YNH_APP_ARG_DOMAIN
path_url="/"
admin=$YNH_APP_ARG_ADMIN
### If it's a multi-instance app, meaning it can be installed several times independently
### The id of the app as stated in the manifest is available as $YNH_APP_ID
### The instance number is available as $YNH_APP_INSTANCE_NUMBER (equals "1", "2", ...)
### The app instance name is available as $YNH_APP_INSTANCE_NAME
### - the first time the app is installed, YNH_APP_INSTANCE_NAME = ynhexample
### - the second time the app is installed, YNH_APP_INSTANCE_NAME = ynhexample__2
### - ynhexample__{N} for the subsequent installations, with N=3,4, ...
### The app instance name is probably what interests you most, since this is
### guaranteed to be unique. This is a good unique identifier to define installation path,
### db names, ...
app=$YNH_APP_INSTANCE_NAME
datadir="/home/yunohost.app/${app}"
#=================================================
# CHECK IF THE APP CAN BE INSTALLED WITH THESE ARGS
#=================================================
### About --weight and --time
### ynh_script_progression will show to your final users the progression of each scripts.
### In order to do that, --weight will represent the relative time of execution compared to the other steps in the script.
### --time is a packager option, it will show you the execution time since the previous call.
### This option should be removed before releasing your app.
### Use the execution time, given by --time, to estimate the weight of a step.
### A common way to do it is to set a weight equal to the execution time in second +1.
### The execution time is given for the duration since the previous call. So the weight should be applied to this previous call.
ynh_script_progression --message="Validating installation parameters..."
### If the app uses nginx as web server (written in HTML/PHP in most cases), the final path should be "/var/www/$app".
### If the app provides an internal web server (or uses another application server such as uwsgi), the final path should be "/opt/yunohost/$app"
final_path=/var/www/$app
test ! -e "$final_path" || ynh_die --message="This path already contains a folder"
# Register (book) web path
ynh_webpath_register --app=$app --domain=$domain --path_url=$path_url
#=================================================
# STORE SETTINGS FROM MANIFEST
#=================================================
ynh_script_progression --message="Storing installation settings..."
ynh_app_setting_set --app=$app --key=domain --value=$domain
ynh_app_setting_set --app=$app --key=path --value=$path_url
ynh_app_setting_set --app=$app --key=admin --value=$admin
ynh_app_setting_set --app=$app --key=datadir --value=$datadir
#=================================================
# STANDARD MODIFICATIONS
#=================================================
# FIND AND OPEN A PORT
#=================================================
ynh_script_progression --message="Configuring firewall..."
### Use these lines if you have to open a port for the application
### `ynh_find_port` will find the first available port starting from the given port.
### If you're not using these lines:
### - Remove the section "CLOSE A PORT" in the remove script
# Find an available port
port=$(ynh_find_port --port=43110)
fs_port=$(ynh_find_port --port=15441)
ynh_app_setting_set --app=$app --key=port --value=$port
ynh_app_setting_set --app=$app --key=fs_port --value=$fs_port
# Optional: Expose this port publicly
# (N.B. : you only need to do this if the app actually needs to expose the port publicly.
# If you do this and the app doesn't actually need you are CREATING SECURITY HOLES IN THE SERVER !)
# Open the port
ynh_exec_warn_less yunohost firewall allow --no-upnp TCP $fs_port
#=================================================
# INSTALL DEPENDENCIES
#=================================================
ynh_script_progression --message="Installing dependencies..."
### `ynh_install_app_dependencies` allows you to add any "apt" dependencies to the package.
### Those deb packages will be installed as dependencies of this package.
### If you're not using this helper:
### - Remove the section "REMOVE DEPENDENCIES" in the remove script
### - Remove the variable "pkg_dependencies" in _common.sh
### - As well as the section "REINSTALL DEPENDENCIES" in the restore script
### - And the section "UPGRADE DEPENDENCIES" in the upgrade script
ynh_install_app_dependencies $pkg_dependencies
#=================================================
# DOWNLOAD, CHECK AND UNPACK SOURCE
#=================================================
ynh_script_progression --message="Setting up source files..."
### `ynh_setup_source` is used to install an app from a zip or tar.gz file,
### downloaded from an upstream source, like a git repository.
### `ynh_setup_source` use the file conf/app.src
ynh_app_setting_set --app=$app --key=final_path --value=$final_path
# Download, check integrity, uncompress and patch the source from app.src
ynh_setup_source --dest_dir="$final_path"
#=================================================
# NGINX CONFIGURATION
#=================================================
ynh_script_progression --message="Configuring nginx web server..."
### `ynh_add_nginx_config` will use the file conf/nginx.conf
# Create a dedicated nginx config
ynh_add_nginx_config
#=================================================
# CREATE DEDICATED USER
#=================================================
ynh_script_progression --message="Configuring system user..."
# Create a system user
ynh_system_user_create --username=$app
#=================================================
# SETUP SYSTEMD
#=================================================
ynh_script_progression --message="Configuring a systemd service..."
### `ynh_systemd_config` is used to configure a systemd script for an app.
### It can be used for apps that use sysvinit (with adaptation) or systemd.
### Have a look at the app to be sure this app needs a systemd script.
### `ynh_systemd_config` will use the file conf/systemd.service
### If you're not using these lines:
### - You can remove those files in conf/.
### - Remove the section "BACKUP SYSTEMD" in the backup script
### - Remove also the section "STOP AND REMOVE SERVICE" in the remove script
### - As well as the section "RESTORE SYSTEMD" in the restore script
### - And the section "SETUP SYSTEMD" in the upgrade script
# Create a dedicated systemd config
ynh_add_systemd_config
#=================================================
# SETUP APPLICATION WITH CURL
#=================================================
### Use these lines only if the app installation needs to be finalized through
### web forms. We generally don't want to ask the final user,
### so we're going to use curl to automatically fill the fields and submit the
### forms.
# Set right permissions for curl install
mkdir -p $datadir/data
mkdir -p $datadir/log
chown -R $app: $final_path
chown -R $app: $datadir
#=================================================
# INTEGRATE SERVICE IN YUNOHOST
#=================================================
ynh_script_progression --message="Integrating service in YunoHost..."
### `yunohost service add` integrates a service in YunoHost. It then gets
### displayed in the admin interface and through the others `yunohost service` commands.
### (N.B. : this line only makes sense if the app adds a service to the system!)
### If you're not using these lines:
### - You can remove these files in conf/.
### - Remove the section "REMOVE SERVICE INTEGRATION IN YUNOHOST" in the remove script
### - As well as the section "INTEGRATE SERVICE IN YUNOHOST" in the restore script
### - And the section "INTEGRATE SERVICE IN YUNOHOST" in the upgrade script
yunohost service add $app --description "$app service" --others_var="$fs_port $datadir" --log "$datadir/log/debug-last.log" --needs_exposed_ports "$fs_port"
### Additional options starting with 3.8:
###
### --needs_exposed_ports "$port" a list of ports that needs to be publicly exposed
### which will then be checked by YunoHost's diagnosis system
### (N.B. DO NOT USE THIS is the port is only internal !!!)
###
### --test_status "some command" a custom command to check the status of the service
### (only relevant if 'systemctl status' doesn't do a good job)
###
### --test_conf "some command" some command similar to "nginx -t" that validates the conf of the service
###
### Re-calling 'yunohost service add' during the upgrade script is the right way
### to proceed if you later realize that you need to enable some flags that
### weren't enabled on old installs (be careful it'll override the existing
### service though so you should re-provide all relevant flags when doing so)
###
#=================================================
# START SYSTEMD SERVICE
#=================================================
ynh_script_progression --message="Starting a systemd service..."
### `ynh_systemd_action` is used to start a systemd service for an app.
### Only needed if you have configure a systemd service
### If you're not using these lines:
### - Remove the section "STOP SYSTEMD SERVICE" and "START SYSTEMD SERVICE" in the backup script
### - As well as the section "START SYSTEMD SERVICE" in the restore script
### - As well as the section"STOP SYSTEMD SERVICE" and "START SYSTEMD SERVICE" in the upgrade script
### - And the section "STOP SYSTEMD SERVICE" and "START SYSTEMD SERVICE" in the change_url script
# Start a systemd service
ynh_systemd_action --service_name=$app --action="start" --log_path="$datadir/log/debug-last.log"
#=================================================
# SETUP SSOWAT
#=================================================
ynh_script_progression --message="Configuring SSOwat..."
# Restrict access to admin only
yunohost app addaccess --users=$admin $app
#=================================================
# RELOAD NGINX
#=================================================
ynh_script_progression --message="Reloading nginx web server..."
ynh_systemd_action --service_name=nginx --action=reload
#=================================================
# END OF SCRIPT
#=================================================
ynh_script_progression --message="Installation of $app completed"