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181 lines
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7.3 KiB
Markdown
181 lines
No EOL
7.3 KiB
Markdown
# Objective
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This guide will provide you with a working relay to test and configure to your liking.
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If you are familiar with NixOS/Flakes, then [installing the NixOS module](https://github.com/astro/buzzrelay?tab=readme-ov-file#build) is by far the easier route!
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If you're not ready to take the NixOS plunge, here's another option to install the FediBuzz relay on server with a recent release of Ubuntu.
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## Hardware
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The official buzzrelay is attached to hundreds of instances and has thousands of followers with a configuration similar to the requirements listed below.
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* 1 Core
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* 1 GB RAM
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If you're connecting to the fedi.buzz relay and perhaps one or two others on your own relay, this should be more than enough.
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One caveat here. FediBuzz has an option for individual users to utilize relays as well by "following" a relay actor, like `@tag-dogsofmastodon@relay.com`.
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If you promote this alternative route and many individuals start connecting to your relay, it will cause more outgoing traffic and queue processing, therefore increasing your hardware requirements.
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# Domain Name
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You'll need a domain or subdomain to run this application. For example, a subdomain of `https://relay.{yourdomain}`.
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# SSL Certificate
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An SSL certificate associated to your relay's domain name is required. This certificate should be added to your reverse proxy.
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Additionally, ensure the TLS configuration is properly set up to facilitate secure connections.
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Please refer to your reverse proxy's documentation for the specific steps required to complete this process.
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# Initial Server Installs
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These packages are required for rust / cargo to work.
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```
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sudo apt-get update
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sudo apt-get install pkg-config libssl-dev libsystemd-dev git cargo curl
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```
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## Rust and related tooling install
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Ensure Rust is installed on your server. Ubuntu has a rustc installation included by default, but it is likely not the latest version. In addition, you may prefer to use rustup to manage your install. Check out [the official installation guide](https://www.rust-lang.org/tools/install).
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## PostgreSQL
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A PostgreSQL database is needed for this application. This [installation guide](https://www.digitalocean.com/community/tutorials/how-to-install-and-use-postgresql-on-ubuntu-22-04) will assist with the initial install.
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Create the relay user for the database. This command creates a user named relay and then prompts for a password.
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```
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sudo -u postgres createuser -P relay
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```
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Then create the database and grant all privileges to the relay user.
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```
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sudo -u postgres psql
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createdb -O relay buzzrelay
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\c buzzrelay
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GRANT ALL PRIVILEGES ON ALL TABLES IN SCHEMA public TO relay;
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GRANT ALL PRIVILEGES ON ALL SEQUENCES IN SCHEMA public TO relay;
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GRANT ALL PRIVILEGES ON ALL FUNCTIONS IN SCHEMA public TO relay;
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ALTER DEFAULT PRIVILEGES IN SCHEMA public GRANT ALL PRIVILEGES ON TABLES TO relay;
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ALTER DEFAULT PRIVILEGES IN SCHEMA public GRANT ALL PRIVILEGES ON SEQUENCES TO relay;
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ALTER DEFAULT PRIVILEGES IN SCHEMA public GRANT ALL PRIVILEGES ON FUNCTIONS TO relay;
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```
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## Querying the database
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A cheat sheet for getting to the database.
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```
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psql -U relay -h localhost -d buzzrelay
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\c buzzrelay
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```
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# Redis
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It's not necessary to install this, it is not used by the core relay. Just comment out the associated lines in the YAML file.
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This was used if you are going to host the page shown at [https://fedi.buzz](https://fedi.buzz) which doesn't come with this relay configuration.
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## Pull GitHub Repo
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```
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git clone https://github.com/astro/buzzrelay.git
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```
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# Update config.yaml
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Move into the project folder and open the config.yaml
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```shell
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sudo vim config.yaml
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```
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## Streams
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* Leave the fedibuzz stream as is.
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* Comment out the first example.
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* Change the last example to your instance's url and token.
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* Add as many others as desired.
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## Additional filters for streams
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If you have a token for an instance that you are using to connect to a mastodon public stream, you're not limited to just the federated stream of all posts. If you want to get more granular, these [streaming timelines](https://docs.joinmastodon.org/methods/streaming/) work, too.
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<details><summary><b>View additional filter details</b></summary>
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All of the items listed below have a /local/ version as well if you want to get REALLY granular and only pick up posts from the local instance.
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> This does not work for the default fedibuzz relay stream, only for mastodon servers for which you have an access token.
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**Public remote posts only - federated posts excluding local ones**
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You can also pass a "only_media" parameter in the querystring and get back only posts with some type of attachment (audio, image, or video) Cool!
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```http
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GET /api/v1/streaming/public/remote?only_media={true|false}&access_token={yourAccessToken} HTTP/1.1
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```
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**Public posts with a specific hashtag**
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>This one does not has the only_media parameter unfortunately.
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```http
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GET /api/v1/streaming/hashtag?tag={yourTag}&access_token={yourAccessToken} HTTP/1.1
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```
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**Watch a list for posts**
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For the user with the associated token, you can create a list of accounts and pass the list_id to this query. It will return only posts from those accounts.
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```http
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GET /api/v1/streaming/list?list={yourListId}&access_token={yourAccessToken} HTTP/1.1
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```
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</details>
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### Hostname
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Set it to your domain. I used the sub-domain format of "relay.{yourdomain}"
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### Listen Port
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Update if necessary for your proxy configuration.
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### Private Key File
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Generate a new RSA key pair for signing ActivityPub messages. Note using this command also sets the appropriate permissions values.
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Run these commands from the root of the project.
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```bash
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openssl genrsa -out private-key.pem 4096
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openssl rsa -in private-key.pem -pubout -out public-key.pem
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```
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## PostgreSQL Password
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I used the default user and dbname listed in the config file. Update the password as needed.
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# Build it
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From the root of the buzzrelay project, with the config.yaml finalized, run the following.
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```
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cargo build --release
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```
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This creates a compiled version in the target/release folder.
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From the root of the project, you can run this command to start up the app:
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```
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cargo run --release config.yaml
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```
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If you see redis errors, be sure to comment out those lines in the config.yaml - it is NOT needed.
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With the fedi relay public stream enabled, I did see the following error stream quite often, showing that the uri is missing, which it is.
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```
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2024-03-23T03:39:34.773184Z TRACE buzzrelay::relay: data: {"created_at":"2024-03-23T03:39:33.020Z","url":"https://some.instance/notes/9r73vj18yk","content":"<p><a href=\"https://some.instance/@some.user\" class=\"u-url mention\">@some.user</a><span> Some Content</p>","account":{"username":"some.user","display_name:":"some.display.name","url":"https://some.instance/@some.user","bot":true},"tags":[],"sensitive":false,"mentions":[],"language":"ja","media_attachments":[],"reblog":null}
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2024-03-23T03:39:48.745870Z ERROR buzzrelay::relay: parse error: missing field `uri` at line 1 column 746
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```
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However, even with that error, plenty of content is getting pushed to my instance.
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# Try it out
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Check the homepage of your new relay for instructions on how to add your desired entries to a fediverse server and start pulling in posts.
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You should see entries being added to your federated timeline.
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You've got a basic working relay to test with. Congratulations! 🎉 |