added dockerfiles

for building the stuff

backend/task/Dockerfile

@@ -0,0 +1,14 @@
+FROM rust:1.88.0
+
+WORKDIR /app
+
+COPY ./task ./task
+COPY ./cache ./cache
+COPY ./storage ./storage
+
+RUN mkdir /app/posts
+RUN cargo build --release --manifest-path ./task/Cargo.toml
+
+EXPOSE 3000
+
+CMD ['cargo', 'run', '--manifest-path', '/app/task/Cargo.toml']