Use docker registry and CI

docker/Dockerfile_app

@@ -7,10 +7,10 @@ FROM eclipse-temurin:17-jdk
 WORKDIR /tmp/compile/
 COPY ./ .
 COPY --from=0 /tmp/build/dist/ ./src/main/resources/static/
-RUN ./gradlew --no-daemon build -x test
+RUN ./gradlew --no-daemon bootJar
 
 FROM eclipse-temurin:17-jre
 WORKDIR /app
-RUN apt update && apt install -y libpcap0.8
+RUN apt update && apt install -y libpcap0.8 && rm -rf /var/lib/apt/lists/*
 COPY --from=1 /tmp/compile/build/libs/packmate-*-SNAPSHOT.jar app.jar
 EXPOSE 65000

docker/Dockerfile_db

@@ -1,14 +0,0 @@
-FROM postgres:15.1
-
-ARG POSTGRES_USER
-ARG POSTGRES_PASSWORD
-ARG POSTGRES_DB
-
-ENV POSTGRES_USER ${POSTGRES_USER}
-ENV POSTGRES_PASSWORD ${POSTGRES_PASSWORD}
-ENV POSTGRES_DB ${POSTGRES_DB}
-
-COPY docker/postgresql.conf /tmp/postgresql.conf
-COPY docker/update_db_config.sh /docker-entrypoint-initdb.d/_update_db_config.sh
-
-EXPOSE 65001