Yashi CLI for Jinja2 template renderer Dockerfile set-up

The Docker WORKDIR is at /app, and the entrypoint starts with yashi, and therefore only the arguments to yashi should be part of the command.

You are recommended to use stdin and stdout to run yasha.

cat ./app.conf.j2 \
    | docker run -i \
        -v "$PWD/vars/":/app/vars/ \
        guangie88/yasha:latest \
        -v /app/vars/dev.toml - \
    > ./app.conf

The above command assumes that both the Jinja2 template file app.conf.j2, and the value file ./vars/dev.toml exist. It applies the values from ./vars/dev.toml to app.conf.j2, and writes the output to app.conf.