Use alpine dockerfile again

Dockerfile

@@ -1,14 +1,13 @@
-FROM rust
-RUN apt-get update -q && apt-get install -yq libsqlite3-dev libseccomp-dev \
-    && rm -rf /var/lib/apt/lists/*
+FROM alpine:edge
+RUN apk add --no-cache sqlite-dev libseccomp-dev
+RUN apk add --no-cache --virtual .build-rust rust cargo
 WORKDIR /usr/src/sn0int
 COPY . .
 RUN cargo build --release --verbose
 RUN strip target/release/sn0int
 
-FROM debian
-RUN apt-get update -q && apt-get install -yq libsqlite3-dev libseccomp-dev \
-    && rm -rf /var/lib/apt/lists/*
+FROM alpine:edge
+RUN apk add --no-cache libgcc sqlite-libs libseccomp
 COPY --from=0 /usr/src/sn0int/target/release/sn0int /usr/local/bin/sn0int
 VOLUME ["/data", "/cache"]
 ENV XDG_DATA_HOME=/data \

docs/install.rst

@@ -35,7 +35,7 @@ Docker
 
 .. code-block:: bash
 
-    $ docker run --rm --init -it -v $PWD/cache:/cache -v $PWD/data:/data kpcyrd/sn0int
+    $ docker run --rm --init -it -v $PWD/.cache:/cache -v $PWD/.data:/data kpcyrd/sn0int
 
 OpenBSD
 -------