[bfops/ci-caching]: use custom docker-compose file

Author: bfops

.github/Dockerfile

@@ -0,0 +1,4 @@
+FROM rust:1.90.0
+RUN mkdir -p /stdb/data
+COPY ./target/debug/spacetimedb-standalone ./target/debug/spacetimedb-cli /usr/local/bin/
+COPY ./crates/standalone/config.toml /stdb/data/config.toml

.github/docker-compose.yml

@@ -0,0 +1,42 @@
+services:
+  node:
+    labels:
+      app: spacetimedb
+    build:
+      context: ../
+      dockerfile: ./Dockerfile
+      args:
+        CARGO_PROFILE: dev
+    volumes:
+      - ./crates/standalone:/usr/src/app/crates/standalone
+      - ./crates/core:/usr/src/app/crates/core
+      - ./crates/client-api:/usr/src/app/crates/client-api
+      - ./crates/lib:/usr/src/app/crates/lib
+      - ./crates/sats:/usr/src/app/crates/sats
+      - ./crates/bindings:/usr/src/app/crates/bindings
+      - ./crates/bindings-macro:/usr/src/app/crates/bindings-macro
+      - ./crates/bindings-sys:/usr/src/app/crates/bindings-sys
+      - ./crates/vm:/usr/src/app/crates/vm
+      - ./crates/metrics:/usr/src/app/crates/metrics
+      - ./crates/client-api-messages:/usr/src/app/crates/client-api-messages
+      - ./Cargo.toml:/usr/src/app/Cargo.toml
+      - ./flamegraphs:/usr/src/app/flamegraphs
+      - key_files:/etc/spacetimedb
+      - /stdb
+    ports:
+      - "3000:3000"
+      # Postgres
+      - "5432:5432"
+    entrypoint: spacetimedb-standalone start --data-dir=/stdb/data --jwt-pub-key-path=/etc/spacetimedb/id_ecdsa.pub --jwt-priv-key-path=/etc/spacetimedb/id_ecdsa --pg-port 5432
+    privileged: true
+    environment:
+      RUST_BACKTRACE: 1
+      ENV: dev
+    networks:
+      - spacetimedb_default
+
+networks:
+  spacetimedb_default:
+    name: spacetimedb_default
+volumes:
+  key_files:

.github/workflows/ci.yml

@@ -78,7 +78,7 @@ jobs:
         run: cargo build -p spacetimedb-cli -p spacetimedb-standalone -p spacetimedb-update
       - name: Build and start database (Linux)
         if: runner.os == 'Linux'
-        run: docker compose up -d
+        run: docker compose up -f .github/docker-compose.yml -d
       - name: Build and start database (Windows)
         if: runner.os == 'Windows'
         run: |