initial commit

.gitignore

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+dev-docker-data-cache
+node_modules

README.md

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+README.md

docker/compose/redis.yml

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+version: '3.7'
+services:
+  redis_dev:
+    # container_name: hero-dev-redis
+    image: redis:alpine
+    restart: always
+    volumes:
+      - ${PWD}/dev-docker-data-cache/redis-data:/data
+    command: ['redis-server', '--appendonly', 'yes', '--requirepass', 'redis_dev_password']
+    ports:
+      - ${DOCKER_REDIS_PORT_PUBLIC:-6760}:${DOCKER_REDIS_PORT:-6379}
+    networks:
+      - safe_redis_leader_dev

docker/compose/test.yml

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+version: '3.7'
+services:
+  safe_redis_leader_backend:
+    build:
+      context: ../../
+      dockerfile: ./docker/dockerfiles/Dockerfile
+    # container_name: safe_redis_leader_dev_backend
+    environment:
+      NODE_ENV: ${NODE_ENV}
+      DOCKER_REDIS_HOST: redis_dev
+      DOCKER_REDIS_PASSWORD: redis_dev_password
+      DOCKER_REDIS_PORT: ${DOCKER_REDIS_PORT:-6379}
+      NETWORK_NAME: safe_redis_leader_dev
+    tty: true
+    stdin_open: true
+    working_dir: /app
+    volumes:
+      - ${PWD}/docker:/docker:delegated
+      - ${PWD}/src:/app:delegated
+      - ${PWD}/package.json:/package.json
+      - ${PWD}/package-lock.json:/package-lock.json
+      - ${PWD}/.env:/.env
+      - ${PWD}/dev-docker-data-cache/test_node_modules:/node_modules:delegated
+      - ${PWD}/dev-docker-data-cache/package_node_modules:/app/node_modules:delegated
+      - /var/run/docker.sock:/var/run/docker.sock
+    user: root
+    command: >
+      sh -c 'npm install --ignore-scripts --save --loglevel verbose &&  ${COMPOSE_COMMAND}'
+    ports:
+      - 9220:9229
+    networks:
+      - safe_redis_leader_dev
+networks:
+  safe_redis_leader_dev:
+    name: safe_redis_leader_dev
+    driver: bridge
+# docker network ls -f driver=bridge --format "{{.ID}}" | xargs docker network inspect | grep Name

docker/dockerfiles/Dockerfile

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+FROM node:12-alpine3.10

docker/scripts/runner.js

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+const { spawn, exec } = require('child_process')
+
+async function run(){
+  let backendComposeCommand = 'npm run test'
+  const isTest = process.env.NODE_ENV === 'test'
+
+
+  let command = exec(
+    `mkdir -p ./dev-docker-data-cache && mkdir -p ./dev-docker-data-cache/node_modules && mkdir -p ./dev-docker-data-cache/redis-data`, 
+    {
+      env: {
+        ...process.env, 
+      }
+    }
+  )
+  await waitForCommandStatusWithStdout(command, {onError: ()=>new Error('could not create dev-docker-data-cache directories')})
+
+
+  const child2 = spawn(
+    `docker-compose`,  
+    [
+      "--project-name",
+      "safe-redis-leader",
+      "--project-directory",
+      "./docker/compose",
+      "-f",
+      "./docker/compose/test.yml",
+      "-f",
+      "./docker/compose/redis.yml",
+      "up", 
+      // "--build"
+    ], 
+    { 
+      env: {
+        ...process.env,
+        COMPOSE_COMMAND: backendComposeCommand
+      },
+      stdio: 'inherit'
+    }
+  );
+  
+  child2.on("exit", (code, signal)=>{
+    process.exit(code)
+  })
+
+}
+
+
+
+function waitForCommandStatusWithStdout(command, {onError}){
+  command.stdout.pipe(process.stdout)
+  command.stderr.pipe(process.stderr)
+
+
+  return new Promise((res,rej)=>command.on('close', (code) => {
+    if(code === 0){
+      res()
+    }
+    else{
+      rej(onError(code))
+    }
+  }))
+}
+
+
+run().catch((e)=>{
+  console.error(e)
+  process.exit(1)
+})
+
+

package-lock.json

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+{
+  "name": "safe-redis-leader",
+  "version": "0.0.1",
+  "lockfileVersion": 1
+}

package.json

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+{
+  "name": "safe-redis-leader",
+  "version": "0.0.1",
+  "description": "Redis leader election implementation that does not have any race conditions",
+  "main": "index.js",
+  "scripts": {
+    "test": "npm install && node ./docker/scripts/runner.js"
+  },
+  "author": "",
+  "license": "ISC"
+}

src/mochaConfig/mocha.opts

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+--reporter spec 
+--file ./mochaConfig/setup/index.js
+--exclude node_modules/**/*
+--timeout 10000

src/mochaConfig/setup/index.js

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+
+
+console.log('hello from setup!')

src/package.json

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+{
+  "name": "safe-redis-leader",
+  "version": "0.0.1",
+  "description": "Redis leader election implementation that does not have any race conditions",
+  "main": "index.js",
+  "scripts": {
+    "test": "NODE_ENV=test NODE_PATH='./' mocha $DEBUG_NODE $WATCH --watch --inspect-brk=0.0.0:9229 --opts ./mochaConfig/mocha.opts ./src/**/*.test.js"
+  },
+  "author": "",
+  "license": "ISC",
+  "devDependencies": {
+    "chai": "^4.2.0",
+    "dotenv": "^8.2.0",
+    "lodash": "^4.17.14",
+    "mocha": "^6.2.2",
+    "nock": "^12.0.2",
+    "nodemon": "^2.0.4"
+  }
+}

src/src/tests/index.test.js

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+
+describe("Main", function(){
+  it("should run", async function(){
+    console.log('it ran!')
+  })
+})