initial commit

.env

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+export GOPATH="$HOME/go"
+export CGO_ENABLED=0
+export GOOS=darwin
+export GOARCH=arm64
+export POSTGRES_USER=$(whoami)
+export POSTGRES_PASS=""
+export IP_NODE=$(hostname)
+export IP_V4_ADDRESS=$(hostname)
+
+export SECRET_KEY_BASE=cyqpgMlaL59EKA4OQMFYT7JksQ6vTYMY
+export DATABASE_URL=postgresql://zoedsoupe@localhost:5432/rinha_dev

.envrc

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+use flake
+
+function transact {
+	args=("$@")
+	valor=$(printf '"valor": %d' ${args[2]})
+	tipo=$(printf '"tipo": "%s"' ${args[3]})
+	body=$(printf '{"descricao": "teste", %s, %s}' $valor $tipo)
+	url=$(printf 'http://localhost:4000/clientes/%d/transacoes' ${args[1]})
+
+	echo $valor
+	echo $tipo
+	echo $url
+
+	curl -X POST -H 'content-type: application/json' -d $body $url
+}

.github/workflows/ci.yml

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+name: ci
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    env:
+      GHCR_USERNAME: ${{ github.actor }}
+      GHCR_TOKEN: ${{ secrets.GHCR_TOKEN }}
+      FORCE_COLOR: 1
+    steps:
+      - uses: actions/checkout@v3
+      - name: Put back the git branch into git (Earthly uses it for tagging)
+        run: |
+          branch=""
+          if [ -n "$GITHUB_HEAD_REF" ]; then
+            branch="$GITHUB_HEAD_REF"
+          else
+            branch="${GITHUB_REF##*/}"
+          fi
+          git checkout -b "$branch" || true
+      - name: Docker Login
+        run: docker login https://ghcr.io --username "$GHCR_USERNAME" --password "$GHCR_TOKEN"
+      - name: Download latest earthly
+        run: "sudo /bin/sh -c 'wget https://github.com/earthly/earthly/releases/latest/download/earthly-linux-amd64 -O /usr/local/bin/earthly && chmod +x /usr/local/bin/earthly'"
+      - name: Earthly version
+        run: earthly --version
+
+      - name: Run builder
+        run: earthly -P --ci +build
+
+      - name: Run tests
+        run: earthly -P --ci +test
+
+      - name: Publish image
+        run: earthly -P --ci --push +docker

Dockerfile

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+FROM golang:1.22.0-alpine3.19 AS builder
+
+RUN apk update && apk add --no-cache git
+
+WORKDIR /app
+
+COPY . /app
+
+RUN go get -d -v
+
+ENV CGO_ENABLED=0
+ENV GOOS=linux
+ENV GOARCH=amd64
+
+# Build the binary.
+RUN go build -a -installsuffix cgo -ldflags="-w -s" -o rinha .
+RUN chmod +x ./rinha
+
+FROM alpine:3.19
+
+ENV LANG en_US.UTF-8
+ENV LANGUAGE en_US:en
+ENV LC_ALL en_US.UTF-8
+
+RUN apk add --no-cache ca-certificates
+
+COPY --from=builder --chown=nobody:root /app/rinha /usr/bin/rinha
+
+CMD ["/usr/bin/rinha"]

Earthfile

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+VERSION 0.7
+FROM golang:1.22.0-alpine3.19
+WORKDIR /rinha
+
+test:
+	COPY go.mod ./
+	COPY main.go ./
+	RUN go test
+
+build:
+	COPY go.mod ./
+	COPY main.go ./
+	RUN go build
+
+docker:
+	FROM DOCKERFILE .
+	ARG GITHUB_REPO=cciuenf/rinha-backend-2024-q1
+	SAVE IMAGE --push ghcr.io/$GITHUB_REPO:latest

config/init.sql

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+CREATE TABLE accounts (
+	id SERIAL PRIMARY KEY,
+	name VARCHAR(50) NOT NULL,
+	limit_amount INTEGER NOT NULL
+);
+
+CREATE TABLE transactions (
+	id SERIAL PRIMARY KEY,
+	account_id INTEGER NOT NULL,
+	amount INTEGER NOT NULL,
+	transaction_type CHAR(1) NOT NULL,
+	description VARCHAR(10) NOT NULL,
+	date TIMESTAMP NOT NULL DEFAULT NOW(),
+	CONSTRAINT fk_accounts_transactions_id
+		FOREIGN KEY (account_id) REFERENCES accounts(id)
+);
+
+CREATE TABLE balances (
+	id SERIAL PRIMARY KEY,
+	account_id INTEGER NOT NULL,
+	amount INTEGER NOT NULL,
+	CONSTRAINT fk_accounts_balances_id
+		FOREIGN KEY (account_id) REFERENCES accounts(id)
+);
+
+DO $$
+BEGIN
+	INSERT INTO accounts (name, limit_amount)
+	VALUES
+		('o barato sai caro', 1000 * 100),
+		('zan corp ltda', 800 * 100),
+		('les cruders', 10000 * 100),
+		('padaria joia de cocaia', 100000 * 100),
+		('kid mais', 5000 * 100);
+
+	INSERT INTO balances (account_id, amount)
+		SELECT id, 0 FROM accounts;
+END;
+$$;

config/nginx.conf

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+events {
+    worker_connections 1000;
+}
+
+http {
+    access_log off;
+    sendfile   on;
+
+    upstream api {
+        server api01:4000;
+        server api02:4001;
+    }
+
+    server {
+        listen 9999;
+
+        location / {
+            proxy_pass http://api;
+        }
+    }
+}
+

config/postgresql.conf

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+# -----------------------------
+# PostgreSQL configuration file
+# -----------------------------
+
+listen_addresses = '*'
+
+# RESOURCE USAGE
+max_connections = 30
+
+# QUERY TUNING
+random_page_cost = 1.1
+effective_io_concurrency = 30

docker-compose.yml

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+version: "3.5"
+
+services:
+  api01: &api
+    image: ghcr.io/cciuenf/rinha-backend-2024-q1:latest
+    hostname: api01
+    environment:
+      - DATABASE_URL=postgresql://postgres:postgres@db:5432/rinha
+      - IP_V4_ADDRESS=192.0.1.11
+      - IP_NODE=192.0.1.12
+
+    ports:
+      - "4000:4000"
+    depends_on:
+      db:
+        condition: service_healthy
+    deploy:
+      resources:
+        limits:
+          cpus: "0.6"
+          memory: "200MB"
+    networks:
+      erlcluster:
+        ipv4_address: 192.0.1.11
+
+  api02:
+    <<: *api 
+    hostname: api02
+    environment:
+      - DATABASE_URL=postgresql://postgres:postgres@db:5432/rinha
+      - IP_V4_ADDRESS=192.0.1.12
+      - IP_NODE=192.0.1.11
+    ports:
+      - "4000:4001"
+    networks:
+      erlcluster:
+        ipv4_address: 192.0.1.12
+
+  nginx:
+    image: nginx:latest
+    volumes:
+      - ./config/nginx.conf:/etc/nginx/nginx.conf:ro
+    depends_on:
+      - api01
+      - api02
+    ports:
+      - "9999:9999" 
+    deploy:
+      resources:
+        limits:
+          cpus: "0.17"
+          memory: "10MB"
+    networks:
+      erlcluster:
+        ipv4_address: 192.0.1.13
+
+  db:
+    image: postgres:latest
+    hostname: db
+    environment:
+      - POSTGRES_PASSWORD=postgres
+      - POSTGRES_USER=postgres
+      - POSTGRES_DB=rinha
+    ports:
+      - "5432:5432"
+    volumes:
+      - ./config/init.sql:/docker-entrypoint-initdb.d/init.sql
+      - ./config/postgresql.conf:/etc/postgresql/postgresql.conf
+    command: postgres -c config_file=/etc/postgresql/postgresql.conf
+    deploy:
+      resources:
+        limits:
+          cpus: "0.13"
+          memory: "140MB"
+    healthcheck:
+      test: [ "CMD-SHELL", "pg_isready -U postgres -d rinha" ]
+      interval: 4s
+      timeout: 2s
+      retries: 5
+    networks:
+      erlcluster:
+        ipv4_address: 192.0.1.14
+
+networks:
+  erlcluster:
+    driver: bridge
+    ipam:
+      driver: default
+      config:
+        - subnet: "192.0.1.0/24"

flake.nix

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+{
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs?rev=9a2dd8e4798be098877175e835eb8e23b85f2c33";
+    flake-parts.url = "github:hercules-ci/flake-parts";
+    systems.url = "github:nix-systems/default";
+  };
+
+  outputs = {
+    flake-parts,
+    systems,
+    ...
+  } @ inputs:
+    flake-parts.lib.mkFlake {inherit inputs;} {
+      systems = import systems;
+      perSystem = {pkgs, ...}: {
+        devShells.default = with pkgs;
+          mkShell {
+            name = "rinha-go";
+            packages = with pkgs;
+              [go_1_22 nginx postgresql]
+              ++ lib.optional stdenv.isLinux [inotify-tools]
+              ++ lib.optional stdenv.isDarwin [
+                darwin.apple_sdk.frameworks.CoreServices
+                darwin.apple_sdk.frameworks.CoreFoundation
+              ];
+          };
+      };
+    };
+}