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Deploying Mastodon on Digital Ocean
source link: https://www.tuicool.com/articles/hit/7JrUV32
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Mastodon is the new social media platform, a decentralized alternative to Twitter that is currently blowing up. This is a step by step guide on how to run your own Mastodon instance on Digital Ocean .
Set up a Droplet
Create a new docker droplet:
This droplet has almost everything we will need preinstalled.
You will receive an email from DO with the credentials you can use to log in to start setting up the server.
Connect to the server as a root user, using ip and password from the email:
ssh root@[ip-from-email]
You will be prompted to change the default password, so do that.
Then create a new user with the username you like, and grant him the sudo powers:
adduser ray gpasswd -a ray sudo
Connect domain name
Let's also immediately point your domain name to the droplet. After buying the domain(I recommend using namecheap ), change the Custom DNS settings to look like this:
Then, in DO's networking tab, create a domain, and add an A record pointing to the droplet:
Now you will be able to ssh into your server using your new username and a domain name:
ssh [email protected]
Install and configure basic stuff
Update and upgrade all the software:
sudo apt-get update && sudo apt-get upgrade
Install nginx(we'll use it to serve our droplet on the right port), and your favorite text editor:
sudo apt-get install nginx emacs
Now let's add docker to the sudo group, that will allow us to run all the docker commands without sudo:
sudo usermod -aG docker $USER sudo service docker restart
Clone and configure Mastodon
Clone the repo and cd into it:
git clone https://github.com/tootsuite/mastodon.git cd mastodon
Now let's configure some settings. First, rename the file .env.production.sample
into .env.production
and open it.
Set the database username/password settings:
DB_USER=your_username DB_NAME=your_databasename DB_PASS=your_password
Set your domain name:
LOCAL_DOMAIN=hackertribe.io
And enable https:
LOCAL_HTTPS=true
Run docker-compose run --rm web rake secret
to generate PAPERCLIP_SECRET, SECRET_KEY_BASE, and OTP_SECRET.
Configure the email server
Create a SendGrid account, go to Settings > API Keys, and generate an API key.
Then set up the config like this:
SMTP_SERVER=smtp.sendgrid.net SMTP_PORT=587 SMTP_LOGIN=apikey SMTP_PASSWORD= [email protected]
(for SMTP_LOGIN literally just use "apikey")
Configure the site info
Open the file /mastodon/config/settings.yml
, and enter the information about your instance(title, description, etc).
Build the containers
Before we can build the containers, we need to add a swap file, without it my $10/month droplet was running out of memory during the build process. To add swap, execute these commands:
sudo fallocate -l 1G /swapfile sudo chmod 600 /swapfile sudo mkswap /swapfile sudo swapon /swapfile
(you can read more in depth about it here )
Now let's finally build our containers! (It will take a few minutes)
docker-compose build docker-compose up -d
(the -d flag means that we want to run it in the background mode. You can try running it without this flag, and you will see the log of everything that's going on on the screen)
Create the DB and migrate
Now we need to run several commands in the db container to create the database.
SSH into the container:
docker exec -i -t mastodon_db_1 /bin/bash
Switch to the postgres user:
su - postgres
Create a user for your db(use the username and password you've just set in the .env.production)
createuser -P your_username
Create a database, giving the ownership rights to the user:
createdb your_databasename -O your_username
Now you can get back to your own user, and run the migrations:
docker-compose run --rm web rails db:migrate
Precompile assets
Now you can precompile the assets:
docker-compose run --rm web rails assets:precompile
After this has finished, restart the containers:
docker stop $(docker ps -a -q) && docker-compose up -d
And now your mastodon instance will run on yourdomain.com:3000!!
Setting up nginx and SSL
First, follow this guide to generate SSL keys and set up the basic nginx configuration.
Then, because the docker containers are serving the application on the port 3000, we will need to use nginx to proxy all the requests to them.
Create the file /etc/nginx/sites-enabled/mastodon_nginx.conf
, and copy the settings from here .
Now, after you restart nginx:
sudo /etc/init.d/nginx restart
It will serve your Mastodon instance!
Conclusion
Congratulations =) Create an account, test things, and invite some people to use your instance!
I also recommend submitting a link to your instance to this list to make it easier for people to discover it.
Also, always feel free to toot at me at @[email protected] , I will be happy to answer your questions =)
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