Hands-On Microservices with Rust

Dockerfile

Now everything is ready to build and pack the microservice to an image. To do this, add the Dockerfile file to the folder with the microservice and add the following lines to it:

FROM rust:nightlyRUN USER=root cargo new --bin users-microserviceWORKDIR /users-microserviceCOPY ./Cargo.toml ./Cargo.tomlRUN cargo buildRUN rm src/*.rsCOPY ./src ./srcCOPY ./diesel.toml ./diesel.tomlRUN rm ./target/debug/deps/users_microservice*RUN cargo buildCMD ["./target/debug/users-microservice"]EXPOSE 8000

We created the image based on the rust:nightly images that we created earlier in this chapter. We set it using the FROM command. The next line creates a new crate:

RUN USER=root cargo new --bin users-microservice

You might ask why we did that and ...