new: add Dockerfile and compose.yaml

Dockerfile

@@ -0,0 +1,17 @@
+FROM mcr.microsoft.com/dotnet/sdk:8.0@sha256:35792ea4ad1db051981f62b313f1be3b46b1f45cadbaa3c288cd0d3056eefb83 AS build-env
+WORKDIR /Octobot
+
+# Copy everything
+COPY . ./
+# Restore as distinct layers
+RUN dotnet restore
+# Load build argument with publish options
+ARG PUBLISH_OPTIONS
+# Build and publish a release
+RUN dotnet publish ./TeamOctolings.Octobot.csproj $OPTIONS -o out
+
+# Build runtime image
+FROM mcr.microsoft.com/dotnet/runtime:8.0@sha256:a335dccd3231f7f9e2122691b21c634f96e187d3840c8b7dbad61ee09500e408
+WORKDIR /Octobot
+COPY --from=build-env /Octobot/out .
+ENTRYPOINT ["./TeamOctolings.Octobot"]

compose.yaml

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+services:
+  wireguard:
+    container_name: wireguard
+    image: jordanpotter/wireguard
+    cap_add:
+      - NET_ADMIN
+      - SYS_MODULE
+    sysctls:
+      net.ipv4.conf.all.src_valid_mark: 1
+    volumes:
+      - /etc/wireguard/octobot.conf:/etc/wireguard/wg0.conf
+    restart: unless-stopped
+
+  octobot:
+    build:
+      context: .
+      args:
+        - PUBLISH_OPTIONS
+    environment:
+      - BOT_TOKEN
+    network_mode: service:wireguard
+    depends_on:
+      - wireguard