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docker - 复制失败：构建上下文之外的禁止路径 docker compose

问题描述

这是项目结构

Project
 /deployment
   /Dockerfile
   /docker-compose.yml
 /services
   /ui
     /widget

这是码头文件

FROM node:14

WORKDIR /app

USER root

# create new user (only root can do this) and assign owenership to newly created user
RUN echo "$(date '+%Y-%m-%d %H:%M:%S'): ======> Setup Appusr" \
    && groupadd -g 1001 appusr \
    && useradd -r -u 1001 -g appusr appusr \
    && mkdir /home/appusr/ \
    && chown -R appusr:appusr /home/appusr/\
    && chown -R appusr:appusr /app

# switch to new created user so that appuser will be responsible for all files and has access
USER appusr:appusr

COPY ../services/ui/widget/ /app/
COPY ../.env /app/

# installing deps
RUN npm install

和码头工人撰写

版本：“3.4”

x-env: &env
  HOST: 127.0.0.1

services:
  widget:
    build:
      dockerfile: Dockerfile
      context: .
    ports:
      - 3002:3002
    command:
      npm start
    environment:
      <<: *env
    restart: always

并从中project/deplyment/docker-compose up显示

Step 6/8 : COPY ../services/ui/widget/ /app/
ERROR: Service 'widget' failed to build : COPY failed: forbidden path outside the build context: ../services/ui/widget/ ()

我设置了错误的上下文吗？

标签： dockerdocker-compose

解决方案

您不能COPY或ADD文件存在于当前路径之外Dockerfile。

您应该将这两个目录移动到 where Dockerfileis 然后更改Dockerfile为：

COPY ./services/ui/widget/ /app/
COPY ./.env /app/

或使用volumesin docker-compose，并删除两COPY行。

所以，你docker-compose应该是这样的：

x-env: &env
  HOST: 127.0.0.1

services:
  widget:
    build:
      dockerfile: Dockerfile
      context: .
    ports:
      - 3002:3002
    command:
      npm start
    environment:
      <<: *env
    restart: always
    volumes:
      - /absolute/path/to/services/ui/widget/:/app/
      - /absolute/path/to/.env/:/app/

这应该是您的Dockerfile if you use 卷indocker-compose`：

FROM node:14

WORKDIR /app

USER root

# create new user (only root can do this) and assign owenership to newly created user
RUN echo "$(date '+%Y-%m-%d %H:%M:%S'): ======> Setup Appusr" \
    && groupadd -g 1001 appusr \
    && useradd -r -u 1001 -g appusr appusr \
    && mkdir /home/appusr/ \
    && chown -R appusr:appusr /home/appusr/\
    && chown -R appusr:appusr /app

# switch to new created user so that appuser will be responsible for all files and has access
USER appusr:appusr

# installing deps
RUN npm install

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