Just one dockerfile to simplify things a little and reduce repetition

.github/workflows/backend.yml

@@ -25,11 +25,11 @@ jobs:
 
     - name: Build, release and call telemetry executable
       working-directory: ./backend
-      run: cargo run --bin telemetry --release -- --help
+      run: cargo run --bin telemetry_core --release -- --help
 
     - name: Build, release and call shard executable
       working-directory: ./backend
-      run: cargo run --bin shard --release -- --help
+      run: cargo run --bin telemetry_shard --release -- --help
 
     - name: Login to Dockerhub
       uses: docker/login-action@v1

backend/Dockerfile

@@ -10,15 +10,15 @@ RUN cargo build --${PROFILE} --bins
 # MAIN IMAGE FOR PEOPLE TO PULL --- small one#
 FROM debian:buster-slim
 LABEL maintainer="Parity Technologies"
-LABEL description="Polkadot Telemetry backend shard, static build"
+LABEL description="Polkadot Telemetry backend shard/core binaries, static build"
 
 ARG PROFILE=release
 WORKDIR /usr/local/bin
 
 COPY --from=builder /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/
-COPY --from=builder /app/target/$PROFILE/shard /usr/local/bin
+COPY --from=builder /app/target/$PROFILE/telemetry_shard /usr/local/bin
+COPY --from=builder /app/target/$PROFILE/telemetry_core /usr/local/bin
 RUN apt-get -y update && apt-get -y install openssl && apt-get autoremove -y && apt-get clean && rm -rf /var/lib/apt/lists/
 
 EXPOSE 8000
 
-ENTRYPOINT ["shard"]

backend/README.md

@@ -15,4 +15,4 @@ As we move to a sharded version of this telemetry server, this set of architectu
 
 # Deployment
 
-A `shard.Dockerfile` and `telemetry.Dockerfile` exist to build the Shard and Telemetry Core binaries into docker containers. A `docker-compose.yaml` in the root of the repository can serve as an example of these services, along with the UI, running together.
+A `Dockerfile` exists which builds the Shard and Telemetry Core binaries into an image. A `docker-compose.yaml` in the root of the repository can serve as an example of these services, along with the UI, running together.

backend/telemetry.Dockerfile

@@ -1,24 +0,0 @@
-FROM paritytech/ci-linux:production as builder
-
-ARG PROFILE=release
-WORKDIR /app
-
-COPY . .
-
-RUN cargo build --${PROFILE} --bins
-
-# MAIN IMAGE FOR PEOPLE TO PULL --- small one#
-FROM debian:buster-slim
-LABEL maintainer="Parity Technologies"
-LABEL description="Polkadot Telemetry backend core, static build"
-
-ARG PROFILE=release
-WORKDIR /usr/local/bin
-
-COPY --from=builder /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/
-COPY --from=builder /app/target/$PROFILE/telemetry /usr/local/bin
-RUN apt-get -y update && apt-get -y install openssl && apt-get autoremove -y && apt-get clean && rm -rf /var/lib/apt/lists/
-
-EXPOSE 8000
-
-ENTRYPOINT ["telemetry"]

docker-compose.yml

@@ -15,9 +15,10 @@ services:
       - 3000
   telemetry-backend-shard:
     build:
-      dockerfile: shard.Dockerfile
+      dockerfile: Dockerfile
       context: ./backend/
     command: [
+      'telemetry_shard',
       '--listen', '0.0.0.0:8001',
       '--core', 'http://telemetry-backend-core:8000/shard_submit'
     ]
@@ -27,9 +28,10 @@ services:
       - 8001
   telemetry-backend-core:
     build:
-      dockerfile: telemetry.Dockerfile
+      dockerfile: Dockerfile
       context: ./backend/
     command: [
+      'telemetry_core',
       '--listen', '0.0.0.0:8000'
     ]
     ports: