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Merge pull request #168 from dush-t/master
[Autohost] - Script for 'one-click' production deployment for django.
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‎Deployment-scripts/django-autohost/README.md

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# Autohost
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Shell scripts for quick production deployment of web apps.
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## For Django -
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Before everything, make sure you have a requirements.txt file inside your project's root which contains all your dependencies.
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(Installing dependencies after hosting is kinda messy.)
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1. Clone this repository to your local machine/server.
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2. Navigate to django-autohost directory and give host.sh executable permissions by `sudo chmod +x ./host.sh`
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3. Run `sudo ./host.sh <ProjectName> /path/to/project/root/directory "ip_address" "port"`
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Your project root is the folder which contains the manage.py file. The path to project root should be absolute.
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For example, if I had a project named MyProject at
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/django/MyProject and wanted to host it locally on port 8080, I would use -
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`sudo ./host.sh MyProject /django/MyProject "localhost" "8080"` (Notice the quotation marks over IP address and port)
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This would store hosting-related info in a directory with path /autohost/MyProject_hostingdata (yes, it is necessary to use the same name as your django project name).
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After running that command, you will be able to view your website at localhost:8080. Don't forget the sudo, this script requires root permissions to place config files in the right directories.
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#### Note: If you want to host at localhost, make sure you write "localhost" there and not "127.0.0.1". Nginx will have issues if you write 127.0.0.1.
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#### Note -
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This script will use nginx and gunicorn (with 4 process workers) to host your web app. The script is ONLY for hosting, and not for managing your project.
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This means once hosted, you will still need to manage your app. Things like making migrations and collectstatic still need to be
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done manually (the script will collect static for you once, at the time of running).
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#### How to "un-host" -
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To remove your webapp from your server, do the following -
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1. Navigate to django-autohost directory and give remove.sh executable permissions by `sudo chmod +x ./remove.sh`
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2. Execute `./remove.sh <ProjectName>`, where <ProjectName> is the name of the project that you used earlier when hosting it.
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3. You're done.

‎Deployment-scripts/django-autohost/host.sh

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#!/bin/bash
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export PROJECT_NAME=$1
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export PROJECT_DIR=$2
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export HOST_IP=$3
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export HOST_PORT=$4
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echo "Running autohost on ${PROJECT_NAME}..."
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#------
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HOSTING_DIR="/autohost/${PROJECT_NAME}_hostingdata"
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echo "Saving hosting data in ${HOSTING_DIR}"
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sudo rm -rf $HOSTING_DIR
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sudo mkdir -p $HOSTING_DIR
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sudo mkdir "${HOSTING_DIR}/logs"
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sudo touch "$HOSTING_DIR/logs/gunicorn-supervisor.log"
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sudo touch "$HOSTING_DIR/logs/nginx-access.log"
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sudo touch "$HOSTING_DIR/logs/nginx-error.log"
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#------
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echo "Setting up Gunicorn..."
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GUNICORN_SCRIPT="${HOSTING_DIR}/gunicorn-start.sh"
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sudo touch $GUNICORN_SCRIPT
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cat >> $GUNICORN_SCRIPT <<\EOF
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#!/bin/bash
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EOF
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cat >> $GUNICORN_SCRIPT <<EOF
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NAME="${PROJECT_NAME}"
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SOCKFILE="${HOSTING_DIR}/run/gunicorn.sock"
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DJANGODIR=${PROJECT_DIR}
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USER=root
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GROUP=webapps
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NUM_WORKERS=4
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DJANGO_SETTINGS_MODULE=${PROJECT_NAME}.settings
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DJANGO_WSGI_MODULE=${PROJECT_NAME}.wsgi
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EOF
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cat >> $GUNICORN_SCRIPT <<\EOF
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echo "Starting ${NAME} as root"
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EOF
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cat >> $GUNICORN_SCRIPT <<EOF
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source "${HOSTING_DIR}/venv/bin/activate"
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EOF
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cat >> $GUNICORN_SCRIPT <<\EOF
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export DJANGO_SETTINGS_MODULE=$DJANGO_SETTINGS_MODULE
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export PYTHONPATH=$DJANGODIR:$PYTHONPATH
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EOF
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cat >> $GUNICORN_SCRIPT <<EOF
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mkdir "${HOSTING_DIR}/run"
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EOF
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cat >> $GUNICORN_SCRIPT <<\EOF
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exec gunicorn ${DJANGO_WSGI_MODULE}:application \
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--name $NAME \
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--workers $NUM_WORKERS \
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--user=$USER \
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--bind unix:$SOCKFILE
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EOF
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sudo chmod u+x $GUNICORN_SCRIPT
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#------
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python3 -m venv "${HOSTING_DIR}/venv"
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source "${HOSTING_DIR}/venv/bin/activate"
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pip install -r "${PROJECT_DIR}/requirements.txt"
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pip install gunicorn
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pip install setproctitle
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python "${PROJECT_DIR}/manage.py" collectstatic
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deactivate
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#-----
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echo "Installing dependencies"
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sudo apt-get install nginx
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sudo apt-get install supervisor
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echo " "
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echo "Setting up supervisor"
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echo "${PROJECT_NAME}.conf"
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sudo rm -rf "/etc/supervisor/conf.d/${PROJECT_NAME}.conf"
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sudo cat >> "/etc/supervisor/conf.d/${PROJECT_NAME}.conf" <<EOF
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[program:${PROJECT_NAME}]
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command=${GUNICORN_SCRIPT}
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user = root
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stdout_logfile = "${HOSTING_DIR}/logs/gunicorn-supervisor.log"
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redirect_stderror = true
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EOF
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sudo supervisorctl reread
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sudo supervisorctl update
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echo " "
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echo "Setting up nginx"
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echo "Saving nginx configuration at /etc/nginx/sites-available/${PROJECT_NAME}"
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sudo rm -rf /etc/nginx/sites-available/${PROJECT_NAME}
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sudo rm -rf /etc/nginx/sites-enabled/${PROJECT_NAME}
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touch /etc/nginx/sites-available/${PROJECT_NAME}
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sudo cat >> /etc/nginx/sites-available/${PROJECT_NAME} <<EOF
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upstream ${PROJECT_NAME}_app_server {
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server unix:${HOSTING_DIR}/run/gunicorn.sock fail_timeout=0;
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}
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server {
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listen ${HOST_PORT};
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server_name ${HOST_IP};
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client_max_body_size 4G;
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access_log ${HOSTING_DIR}/logs/nginx-access.log;
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error_log ${HOSTING_DIR}/logs/nginx-error.log;
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location /static/ {
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alias $PROJECT_DIR/static/;
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}
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location /media/ {
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alias $PROJECT_DIR/media;
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}
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EOF
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cat >> /etc/nginx/sites-available/$PROJECT_NAME <<\EOF
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location / {
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proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
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proxy_set_header Host $http_host;
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proxy_redirect off;
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if (!-f $request_filename) {
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EOF
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cat >> /etc/nginx/sites-available/$PROJECT_NAME <<EOF
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proxy_pass http://${PROJECT_NAME}_app_server;
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break;
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}
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}
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# Error pages
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error_page 500 502 503 504 /500.html;
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location = /500.html {
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root ${PROJECT_DIR}/static/;
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}
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}
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EOF
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sudo ln -s /etc/nginx/sites-available/${PROJECT_NAME} /etc/nginx/sites-enabled/
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sudo nginx -s reload
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sudo nginx -s reopen
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sudo supervisorctl status $PROJECT_NAME
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echo "Your project is up and running at ${HOST_IP}:${HOST_PORT}"
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‎Deployment-scripts/django-autohost/remove.sh

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export PROJECT_NAME=$1
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echo "Unhosting your website..."
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echo "Removing hosting files..."
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sudo rm -rf "/autohost/${PROJECT_NAME}_hostingdata"
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echo "Removing nginx configurations..."
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sudo rm -rf "/etc/nginx/sites-enabled/${PROJECT_NAME}"
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sudo rm -rf "/etc/nginx/sites-available/${PROJECT_NAME}"
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echo "Removing supervisor program..."
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sudo rm -rf "/etc/supervisor/conf.d/${PROJECT_NAME}.conf"
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echo "Done"

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