[enh] Backup/restore scripts. WIP

manifest.json

@@ -2,6 +2,9 @@
     "name": "Searx",
     "id": "searx",
     "packaging_format": 1,
+    "requirements": {
+        "yunohost": ">> 2.3.15"
+    },
     "description": {
         "en": "A privacy-respecting, hackable metasearch engine",
         "fr": "Un méta-moteur de recherche respectueux de la vie privée et bidouillable" 

scripts/backup

@@ -0,0 +1,35 @@
+#!/bin/bash
+
+# causes the shell to exit if any subcommand or pipeline returns a non-zero status
+set -e
+
+# Source YNH helpers
+. /usr/share/yunohost/helpers
+
+# This is 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 $YNH_APP_INSTANCE_NAME
+#    - the first time the app is installed, YNH_APP_INSTANCE_NAME = ynhexample
+#    - the second time the app is installed, YNH_APP_INSTANCE_NAME = ynhexample__2
+#    - ynhexample__{N} for the subsequent installations, with N=3,4, ...
+# The app instance name is probably what you are interested the most, since this is
+# guaranteed to be unique. This is a good unique identifier to define installation path,
+# db names, ...
+app=$YNH_APP_INSTANCE_NAME
+
+# Retrieve arguments
+domain=$(sudo yunohost app setting $app domain)
+
+# Backup directory location for the app from where the script is executed and 
+# which will be compressed afterward
+backup_dir=$YNH_APP_BACKUP_DIR
+
+# Backup sources & data
+ynh_backup "/opt/yunohost/$app" "sources"
+
+# Copy Nginx conf
+sudo mkdir -p ./conf
+ynh_backup "/etc/uwsgi/apps-available/$app.ini" "conf/searx.ini"
+ynh_backup "/opt/yunohost/$app/searx/settings.yml" "conf/settings.yml"
+ynh_backup "/etc/nginx/conf.d/$domain.d/$app.conf" "conf/nginx.conf"

scripts/restore

@@ -0,0 +1,123 @@
+#!/bin/bash
+
+# causes the shell to exit if any subcommand or pipeline returns a non-zero status
+set -e
+
+# Source YNH helpers
+. /usr/share/yunohost/helpers
+
+# This is 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 $YNH_APP_INSTANCE_NAME
+#    - the first time the app is installed, YNH_APP_INSTANCE_NAME = ynhexample
+#    - the second time the app is installed, YNH_APP_INSTANCE_NAME = ynhexample__2
+#    - ynhexample__{N} for the subsequent installations, with N=3,4, ...
+# The app instance name is probably what you are interested the most, since this is
+# guaranteed to be unique. This is a good unique identifier to define installation path,
+# db names, ...
+app=$YNH_APP_INSTANCE_NAME
+
+# Get old parameter of the app
+domain=$(sudo yunohost app setting $app domain)
+path=$(sudo yunohost app setting $app path)
+is_public=$(sudo yunohost app setting $app is_public)
+
+# Check domain/path availability
+sudo yunohost app checkurl $domain$path -a $app
+if [[ ! $? -eq 0 ]]; then
+    echo "There is already an app on this URL : $domain$path" | sudo tee /dev/stderr
+    exit 1
+fi
+
+final_path=/opt/yunohost/searx
+if [ -d $final_path ]; then
+    echo "There is already a directory: $final_path " | sudo tee /dev/stderr
+    exit 1
+fi
+
+nginx_conf=/etc/nginx/conf.d/$domain.d/$app.conf
+if [ -f $nginx_conf ]; then
+    echo "There is already a nginx conf file at this path: $nginx_conf " | sudo tee /dev/stderr
+    exit 1
+fi
+
+# Run install script
+# sudo bash -c "./install $domain $path $is_public $app"
+
+
+# Path need a trailing slash, and location does not.
+# See conf/nginx.conf* usage
+location=$path
+if [[ ! $path == */ ]]; then
+    # no trailing slash, so add it
+    path=$path/
+fi
+if [[ ! "$location" == "/" ]]; then
+    # remove possible trailing slash
+    location=${location%/}
+fi
+
+# Save specific settings
+sudo yunohost app setting searx is_public -v $is_public
+
+# Check depends installation
+sudo apt-get install git build-essential libxslt-dev python-dev python-virtualenv python-pybabel zlib1g-dev libffi-dev libssl-dev python-lxml uwsgi uwsgi-plugin-python -y
+
+# Check Swap
+if [ $(sudo swapon -s | wc -l) = 1 ];
+then
+    # It is NOT possible to setup a swap file on a tmpfs filesystem
+    mount | grep /tmp | grep tmpfs > /dev/null 2>&1
+    if [ $? = 1 ];
+    then
+        tmp_swap_file=/tmp/searx_swapfile
+    else
+        tmp_swap_file=/var/cache/searx_swapfile
+    fi
+    sudo dd if=/dev/zero of=$tmp_swap_file bs=1M count=256
+    sudo chmod 600 $tmp_swap_file
+    sudo mkswap $tmp_swap_file
+    sudo swapon $tmp_swap_file
+fi
+
+# Restore sources
+final_path=/opt/yunohost/searx
+sudo cp -a "./sources" $final_path
+
+# Init virtualenv
+sudo virtualenv --system-site-packages $final_path
+sudo bash -c "source $final_path/bin/activate && pip install -r $final_path/requirements-ynh.txt"
+
+# Disable swapfile
+if [[ -v "$tmp_swap_file" ]];
+then
+    sudo swapoff $tmp_swap_file
+    sudo rm -f $tmp_swap_file
+fi
+
+#Configuration Searx
+sudo cp "./conf/settings.yml" "$final_path/searx/settings.yml"
+
+# Set permissions to searx directory
+sudo useradd searx -d $final_path
+sudo chown searx:searx -R $final_path
+
+# Copy uwsgi config
+sudo cp "./conf/searx.ini" "/etc/uwsgi/apps-available/$app.ini"
+sudo ln -s "/etc/uwsgi/apps-available/$app.ini" /etc/uwsgi/apps-enabled/
+
+# Nginx conf
+sudo cp "conf/nginx.conf" $nginx_conf
+
+## Reload Nginx and regenerate SSOwat conf
+sudo service nginx reload
+sudo service uwsgi restart
+sudo yunohost service add uwsgi -l /var/log/uwsgi/app/searx.log
+
+if [ "$is_public" = "Yes" ];
+then
+    sudo yunohost app setting searx unprotected_uris -v "/"
+fi
+sudo yunohost app ssowatconf
+