项目部署

前言

docker这个技术已经非常成熟，同事的公司80%的项目都会用docker部署。

说docker简单，它也的确简单，只要Dockerfike和compose.yml配置好，整个项目两非常流畅和灵活。

说docker难，它也确实难，想要写好一份好的Dockerfile至少得了解docker分层的概念，充分利用分阶段构建来构建出最小最优的项目镜像。不同环境用不同的.env文件配置好compose，这都是非常考验经验又杀神的事，经常半天去了，环境还没搭建满意，就不说代码有没有码了。

构建顺序

# 首先构建数据库
# momgo
# redis

docker-compose.yaml

networks:
  wxyibu:
    name: wxyibu
    driver: bridge
    ipam:
      config:
        - subnet: 172.25.0.0/24

services:
  redis:
    image: redis:6.0.9
    container_name: wxyibu-redis
    networks:
      wxyibu:
        ipv4_address: 172.25.0.102
    # restart: unless-stopped
    volumes:
      - /home/test/Project/app/redis/redis.conf:/app/redis.conf
      - /home/test/Project/app/redis/data:/app/data
    command: redis-server /app/redis.conf
    ports:
      - "6379:6379"

  mongo:
    image: mongo:4.4
    container_name: wxyibu-mongodb
    networks:
      wxyibu:
        ipv4_address: 172.25.0.103
    environment:
      TZ: Asia/Shanghai
      MONGO_INITDB_ROOT_USERNAME: ${MONGO_INITDB_ROOT_USERNAME}
      MONGO_INITDB_ROOT_PASSWORD: ${MONGO_INITDB_ROOT_PASSWORD}
    volumes:
      - /home/test/Project/app/db/data:/app/data
      - /home/test/Project/app/db/log:/app/log
      - /home/test/Project/app/db/mongodb.yaml:/app/mongodb.yaml
      - ./init-mongo.js:/docker-entrypoint-initdb.d/init-mongo.js
    # restart: unless-stopped
    command: mongod --config /app/mongodb.yaml
    ports:
      - "27017:27017"

  # server:
  #   image: yibuwx-app-test:latest
  #   container_name: wxyibu-server
  #   networks:
  #     wxyibu:
  #       ipv4_address: 172.25.0.100
  #   command: /bin/bash
  #   ports:
  #    - "7001:7001"

Dockerfile

mongodb

初始化时创建一个权限账号：/docker-entrypoint-initdb.d/init-mongo.js

var dbname = ""
var username = ""
var passwd = ""


var db = db.getSiblingDB(dbname);
var currentTime = new Date();
var currentTimeBeijing = new Date(currentTime.getTime() + (8 * 60 * 60 * 1000));

db.createCollection("init")
db.init.insert({"init_time_UTC":currentTime, "init_time_Beijing":currentTimeBeijing })
db.createUser({user:username,pwd:passwd,roles:[{role:"dbOwner",db:dbname}]})

dockerfile

FROM mongo:4.4
LABEL maintainer="capsion@qq373704015"

# ARG DB_USER_NAME
# ARG DB_PASSWORD
ARG USER_UID
ARG USER_GID
ARG APP_PATH

# 设置 MongoDB 配置文件和初始化脚本的路径变量
# ENV MONGO_INITDB_ROOT_USERNAME=${DB_USER_NAME}
# ENV MONGO_INITDB_ROOT_PASSWORD=${DB_PASSWORD} 
ENV USER_UID=${USER_UID}
ENV USER_GID=${USER_GID}
ENV TZ=Asia/Shanghai

WORKDIR /app

# 复制 MongoDB 配置文件和初始化脚本
COPY ./init-mongo.js /docker-entrypoint-initdb.d/init-mongo.js

# 安装fixuid修复权限问题
# ADD https://github.com/boxboat/fixuid/releases/download/v0.6.0/fixuid-0.6.0-linux-amd64.tar.gz
ADD ./fixuid-0.6.0-linux-amd64.tar.gz /usr/local/bin

RUN chmod 4755 /usr/local/bin/fixuid 
RUN mkdir -p /etc/fixuid
RUN echo "user: ${USER_UID}" > /etc/fixuid/config.yml
RUN echo "group: ${USER_UID}" >> /etc/fixuid/config.yml

ENV PATH=$PATH:/app

ENTRYPOINT ["fixuid"]

# CMD ["mongod", "--config", "/app/mongodb.yaml"]
CMD ["/bin/bash","-c","while true; do echo hello world; sleep 3600; done"]

EXPOSE 27017

build.sh + docker-compose.yaml

# !/bin/bash
NETWORK_NAME='TyphoonUI'

# 指定 Docker Compose 文件路径（根据实际情况修改）
DOCKER_COMPOSE_FILE="./docker compose.yaml"

# 获取当前用户的用户名
CURRENT_USER=$(whoami)

# 获取当前用户的UID和GID
CURRENT_UID=$(id -u "$CURRENT_USER")
CURRENT_GID=$(id -g "$CURRENT_USER")
APP_PATH=/home/typhoon/app/db
MONGO_INITDB_ROOT_USERNAME=admin
MONGO_INITDB_ROOT_PASSWORD=admin.typhoon

# 将UID和GID设置为全局环境变量
export CURRENT_UID CURRENT_GID APP_PATH MONGO_INITDB_ROOT_USERNAME MONGO_INITDB_ROOT_PASSWORD

# 检查指定网络是否存在
docker network inspect "$NETWORK_NAME" &>/dev/null

# 如果返回非零状态，表示网络不存在
if [ $? -ne 0 ]; then
  echo "网络 $NETWORK_NAME 不存在，正在创建网络..."
  docker network create --subnet=173.25.0.0/24 "$NETWORK_NAME"
  if [ $? -eq 0 ]; then
    echo "网络 $NETWORK_NAME 创建成功"
  else
    echo "创建网络 $NETWORK_NAME 失败，脚本退出"
    exit 1
  fi
else
  echo "网络 $NETWORK_NAME 已经存在"
fi


# 执行 docker compose config，检查配置文件是否有效
docker compose config &>/dev/null

if [ $? -eq 0 ]; then
  echo "docker compose 配置有效，正在启动服务..."
  docker compose up -d
  if [ $? -eq 0 ]; then
    echo "docker compose 服务启动成功"
  else
    echo "docker compose 服务启动失败"
    exit 1
  fi
else
  echo "docker compose 配置无效，请检查配置文件"
  exit 1
fi

# 本文件需要配合build.sh使用
# 需要重新获取当前项目用户
# 使用docker部署容易发生权限问题
# 通过指定USER_GID和USER_UID来修复数据库文件挂载后的权限问题
networks:
  TyphoonUI:
    name: TyphoonUI
    driver: bridge
    external: true
    ipam:
      driver: default
      config:
        - subnet: 173.25.0.0/24
        
services:
  mongo:
    image: mongo:4.4
    container_name: TyphoonUI-mongodb
    user: "${CURRENT_UID}:${CURRENT_GID}"
    networks:
      TyphoonUI:
        ipv4_address: 173.25.0.101
    environment:
      TZ: Asia/Shanghai
      MONGO_INITDB_ROOT_USERNAME: ${MONGO_INITDB_ROOT_USERNAME}
      MONGO_INITDB_ROOT_PASSWORD: ${MONGO_INITDB_ROOT_PASSWORD}
    volumes:
      - ${APP_PATH}/db:/app
      - ${APP_PATH}/docker/init-mongo.js:/docker-entrypoint-initdb.d/init-mongo.js
    command: mongod --config /app/mongodb.yaml
    privileged: true
    ports:
      - "27018:27017"