feat: dockerfile

Dockerfile

@@ -0,0 +1,85 @@
+# syntax=docker/dockerfile:1
+
+# Comments are provided throughout this file to help you get started.
+# If you need more help, visit the Dockerfile reference guide at
+# https://docs.docker.com/engine/reference/builder/
+
+################################################################################
+# Create a stage for building the application.
+
+ARG RUST_VERSION=1.72.0
+ARG APP_NAME=monitoring
+FROM rust:${RUST_VERSION}-slim-bullseye AS build
+ARG APP_NAME
+WORKDIR /app
+
+
+
+RUN apt update
+RUN apt install -y libpq-dev libssl-dev pkg-config
+
+# Install ca-certificates needed for AWS sdk
+# RUN apt-get install -y --no-install-recommends ca-certificates
+# RUN apt-get install -y --no-install-recommends wget
+
+
+
+# Build the application.
+# Leverage a cache mount to /usr/local/cargo/registry/
+# for downloaded dependencies and a cache mount to /app/target/ for
+# compiled dependencies which will speed up subsequent builds.
+# Leverage a bind mount to the src directory to avoid having to copy the
+# source code into the container. Once built, copy the executable to an
+# output directory before the cache mounted /app/target is unmounted.
+RUN --mount=type=bind,source=src,target=src \
+    --mount=type=bind,source=Cargo.toml,target=Cargo.toml \
+    --mount=type=bind,source=Cargo.lock,target=Cargo.lock \
+    --mount=type=cache,target=/app/target/ \
+    --mount=type=cache,target=/usr/local/cargo/registry/ \
+    <<EOF
+set -e
+ls -la
+cargo build --locked --release
+cp ./target/release/$APP_NAME /bin/server
+EOF
+
+################################################################################
+# Create a new stage for running the application that contains the minimal
+# runtime dependencies for the application. This often uses a different base
+# image from the build stage where the necessary files are copied from the build
+# stage.
+#
+# The example below uses the debian bullseye image as the foundation for running the app.
+# By specifying the "bullseye-slim" tag, it will also use whatever happens to be the
+# most recent version of that tag when you build your Dockerfile. If
+# reproducability is important, consider using a digest
+# (e.g., debian@sha256:ac707220fbd7b67fc19b112cee8170b41a9e97f703f588b2cdbbcdcecdd8af57).
+FROM debian:12-slim AS final
+
+# Create a non-privileged user that the app will run under.
+# See https://docs.docker.com/develop/develop-images/dockerfile_best-practices/#user
+ARG UID=10001
+RUN apt update
+RUN apt install -y libpq-dev
+RUN apt-get install -y procps
+
+# Copy the executable from the "build" stage.
+COPY --from=build /bin/server /bin/
+# Copy all the app binaries
+# COPY --from=build /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/
+
+RUN adduser \
+    --disabled-password \
+    --gecos "" \
+    --home "/nonexistent" \
+    --shell "/sbin/nologin" \
+    --no-create-home \
+    --uid "${UID}" \
+    appuser
+USER appuser
+
+# Expose the port that the application listens on.
+EXPOSE 8080
+
+# What the container should run when it is started.
+CMD ["/bin/server"]

docker-compose.yml

@@ -30,6 +30,13 @@ services:
       - alertmanager-data:/data
     command: --config.file=/config/alertmanager.yml --log.level=debug 
 
+  monitoring:
+    build: .
+    env_file: 
+      - .env
+    ports:
+      - 8080:8080
+
 
 volumes:
   prometheus-data:

prometheus/prometheus.yml

@@ -5,7 +5,7 @@ global:
 scrape_configs:
   - job_name: "prometheus_monitoring"
     static_configs:
-      - targets: ["host.docker.internal:8081"]
+      - targets: ["host.docker.internal:8080"]
 
 rule_files:
   - "alerts.rules.yml"

src/server.rs

@@ -9,7 +9,7 @@ pub async fn run_metrics_server() {
         .route("/", get(root_handler))
         .route("/metrics", get(metrics_handler));
 
-    let addr = SocketAddr::from(([0, 0, 0, 0], 8081));
+    let addr = SocketAddr::from(([0, 0, 0, 0], 8080));
 
     info!("Server Started, listening on http://{}", addr);