Jetrelay

A basic jetstream relay

See here for an explanation.

Jetrelay reads the following env vars:

• JETRELAY_PORT (required) - the port to listen to
• UPSTREAM_URL (required) - the upstream relay to mirror
• RUNTIME_DIRECTORY (required) - the directly to keep runtime data in
• RUST_LOG - logging level ("warn", "debug", etc.)

Also, each client consumes 3 fds, so you'll want to increase the fd limit if you expect a lot of clients.

Quick start

Using systemd-run:

$ cargo build --release
$ systemd-run --user --pty \
    -EJETRELAY_PORT=7375 \
    -EUPSTREAM_URL="wss://<some jetstream server>/subscribe" \
    -pRuntimeDirectory=jetrelay \
    -pLimitNOFILE=65535 \
    ./target/release/jetrelay

Or the old-school way (pollutes your shell's environment):

$ cargo build --release
$ export JETRELAY_PORT=7375
$ export RUNTIME_DIRECTORY=$(mktemp -d)
$ export UPSTREAM_URL="wss://<some jetstream server>/subscribe"
$ ulimit -n 65535
$ ./target/release/jetrelay