Improve Dockerfile

Signed-off-by: baalajimaestro <me@baalajimaestro.me>

Dockerfile

@@ -1,8 +1,9 @@
-FROM nimlang/nim:alpine
+FROM nimlang/nim:alpine as builder
 
 RUN apk update && apk add git build-base curl bash openssl openssl-dev openssl-libs-static sqlite-dev sqlite-static
 
 COPY . /app
+WORKDIR /app
 
 # Build with necessary params to enable statically linking openssl, glibc and sqlite3
 RUN nimble build --passL:-L/usr/lib \
@@ -16,10 +17,16 @@ RUN nimble build --passL:-L/usr/lib \
                  --passl:-lcrypto \
                  --passL:-static \
                  -d:release \
-                 --opt:size
+                 --opt:size \
+                 --accept
 
 # Our binary lives in this image
 FROM gcr.io/distroless/base:latest
 
-COPY --from=builder nim_censor_bot /
+COPY --from=builder /app/nim_censor_bot /
+
+ENV DB_HOST="/data/censordata.db"
+
+VOLUME /data
+
 CMD ["./nim_censor_bot"]