Refactor: first iteration of modular and dockerized approach

mosquitto/Dockerfile

@@ -0,0 +1,22 @@
+FROM eclipse-mosquitto:2.0
+
+RUN apk add --no-cache \
+    rust \
+    cargo \
+    build-base \
+    openssl-dev \
+    mosquitto-dev \
+    git
+
+RUN git clone https://github.com/wiomoc/mosquitto-jwt-auth.git /jwt-auth
+WORKDIR /jwt-auth
+RUN cargo build --release
+
+RUN mkdir -p /usr/lib/mosquitto && \
+    cp target/release/libmosquitto_jwt_auth.so /usr/lib/mosquitto/
+
+RUN apk del build-base git
+
+COPY mosquitto.conf /mosquitto/config/mosquitto.conf
+COPY public_key.pem /mosquitto/config/public_key.pem
+RUN chown -R mosquitto:mosquitto /mosquitto/config