Docker使用缓存编写生成命令，复制到Docker时不拾取更改的文件

我有一个由两个服务组成的

docker compose.yml

文件（都基于DockerFile）。我曾经构建过一次图像（使用命令：

docker compose build

），并且在我运行此命令（

docker compose up

）后，它们就启动并运行了。
我必须更改其中一个服务所使用的源代码，但是，当我重新生成图像时（

docker compose build

），代码更改在运行服务后没有反映出来（

docker compose up

）

docker compose.yml

version: '2'

services:
  serviceOne:
    build:
      context: ./ServerOne
      args:
          PORT: 4000
    ports:
      - "4000:4000"
    env_file:
      - ./ServerOne/.env
    environment:
      - PORT=4000
  serviceTwo:
    build:
      context: ./serviceTwo
      args:
          PORT: 3000
    ports:
      - "3000:3000"
    env_file:
      - ./serviceTwo/.env
    environment:
      - PORT=3000
      - serviceOne_URL=http://serviceOne:4000/
    depends_on:
      - serviceOne  

FROM node:8.10.0

RUN mkdir -p /app
WORKDIR /app
ADD package.json package-lock.json /app/
RUN npm install
COPY . /app/
RUN npm build
EXPOSE ${ACC_PORT}
CMD [ "npm", "start" ]

FROM node:8.10.0

RUN mkdir -p /app
WORKDIR /app
ADD package.json package-lock.json /app/
RUN npm install
COPY . /app/
RUN npm build
EXPOSE ${ACC_PORT}
CMD [ "npm", "start" ]

serviceOne/DockerFile

version: '2'

services:
  serviceOne:
    build:
      context: ./ServerOne
      args:
          PORT: 4000
    ports:
      - "4000:4000"
    env_file:
      - ./ServerOne/.env
    environment:
      - PORT=4000
  serviceTwo:
    build:
      context: ./serviceTwo
      args:
          PORT: 3000
    ports:
      - "3000:3000"
    env_file:
      - ./serviceTwo/.env
    environment:
      - PORT=3000
      - serviceOne_URL=http://serviceOne:4000/
    depends_on:
      - serviceOne  

FROM node:8.10.0

RUN mkdir -p /app
WORKDIR /app
ADD package.json package-lock.json /app/
RUN npm install
COPY . /app/
RUN npm build
EXPOSE ${ACC_PORT}
CMD [ "npm", "start" ]

FROM node:8.10.0

RUN mkdir -p /app
WORKDIR /app
ADD package.json package-lock.json /app/
RUN npm install
COPY . /app/
RUN npm build
EXPOSE ${ACC_PORT}
CMD [ "npm", "start" ]

serviceTwo/DockerFile

version: '2'

services:
  serviceOne:
    build:
      context: ./ServerOne
      args:
          PORT: 4000
    ports:
      - "4000:4000"
    env_file:
      - ./ServerOne/.env
    environment:
      - PORT=4000
  serviceTwo:
    build:
      context: ./serviceTwo
      args:
          PORT: 3000
    ports:
      - "3000:3000"
    env_file:
      - ./serviceTwo/.env
    environment:
      - PORT=3000
      - serviceOne_URL=http://serviceOne:4000/
    depends_on:
      - serviceOne  

FROM node:8.10.0

RUN mkdir -p /app
WORKDIR /app
ADD package.json package-lock.json /app/
RUN npm install
COPY . /app/
RUN npm build
EXPOSE ${ACC_PORT}
CMD [ "npm", "start" ]

FROM node:8.10.0

RUN mkdir -p /app
WORKDIR /app
ADD package.json package-lock.json /app/
RUN npm install
COPY . /app/
RUN npm build
EXPOSE ${ACC_PORT}
CMD [ "npm", "start" ]

以下是第二次运行docker compose时的输出。
这是在运行COPY和npm build命令时如何再次使用缓存的图像

如何更改DockerFile或docker compose文件，以便部署新的源代码

---

您可以通过在

上添加来强制生成忽略缓存，但这会降低性能（运行所有命令并为每个命令创建后续映像），是否有其他方法？是的，生成会稍微慢一点。但它将拥有最新的代码。