rust-rpxy/docker

Docker Images of rpxy

The rpxy docker images are hosted both on Docker Hub and GitHub Container Registry.

Usage

There are several docker-specific environment variables.

• HOST_USER (default: user): User name executing rpxy inside the container.
• HOST_UID (default: 900): UID of HOST_USER.
• HOST_GID (default: 900): GID of HOST_USER
• LOG_LEVEL=debug|info|warn|error: Log level
• LOG_TO_FILE=true|false: Enable logging to the log file /rpxy/log/rpxy.log using logrotate. You should mount /rpxy/log via docker volume option if enabled. The log dir and file will be owned by the HOST_USER with HOST_UID:HOST_GID on the host machine. Hence, HOST_USER, HOST_UID and HOST_GID should be the same as ones of the user who executes the rpxy docker container on the host.
• WATCH=true|false (default: false): Activate continuous watching of the config file if true.

Then, all you need is to mount your config.toml as /etc/rpxy.toml and certificates/private keys as you like through the docker volume option. If WATCH=true, You need to mount a directory, e.g., ./rpxy-config/, including rpxy.toml on /rpxy/config instead of a file to correctly track file changes. This is a docker limitation. Even if WATCH=false, you can mount the dir onto /rpxy/config rather than /etc/rpxy.toml. A file mounted on /etc/rpxy is prioritized over a dir mounted on /rpxy/config.

See docker-compose.yml for the detailed configuration. Note that the file path of keys and certificates must be ones in your docker container.

Custom CAs for upstream TLS connections

To add a custom certificate, you must use a non-slim non-webpki image. Then mount /usr/local/share/ca-certificates in the container with your desired CAs each in a file like myca.crt. The certificates are accepted in PEM format but file extension must be crt.

e.g. -v rpxy/ca-certificates:/usr/local/share/ca-certificates

Differences among image tags of Docker Hub and GitHub Container Registry

Differences among tags are summarized as follows.

Latest Builds

• latest: Built from the main branch with default features, running on Ubuntu.
• latest-slim, slim: Built by musl from the main branch with default features, running on Alpine.
• latest-s2n, s2n: Built from the main branch with the http3-s2n feature, running on Ubuntu.

Nightly Builds

• nightly: Built from the develop branch with default features, running on Ubuntu.
• nightly-slim: Built by musl from the develop branch with default features, running on Alpine.
• nightly-s2n: Built from the develop branch with the http3-s2n feature, running on Ubuntu.

Caveats

Due to some compile errors of s2n-quic subpackages with musl, nightly-s2n-slim or latest-s2n-slim are not yet provided.

See ./docker/README.md for the differences on image tags.