Docker-compose命令-build

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命令

docker-compose build

描述

Build or rebuild services
构建或重建服务

用法

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build [options] [--build-arg key=val...] [SERVICE...]

选项

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Options:
  --build-arg key=val  Set build-time variables for services.
  --compress           Compress the build context using gzip.
  --force-rm           Always remove intermediate containers.
  -m, --memory MEM     Set memory limit for the build container.
  --no-cache           Do not use cache when building the image.
  --no-rm              Do not remove intermediate containers after a successful build.
  --parallel           并行构建镜像
  --progress string    Set type of progress output (`auto`, `plain`, `tty`).
  --pull               Always attempt to pull a newer version of the image.
  -q, --quiet          Don't print anything to `STDOUT`.

注意

如果更改了Dockerfile文件,则可以重复执行build命令重新构建,注意需要同时更改compose文件中的image镜像版本

示例

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# 目录结构
$ tree
├── data
│   └── demo.txt
├── docker-compose.yml
└── Dockerfile
$ cat Dockerfile
FROM alpine:3.13
RUN sed -i 's/dl-cdn.alpinelinux.org/mirrors.aliyun.com/g' /etc/apk/repositories
CMD ["/bin/bash"]
$ cat docker-compose.yml
version: "3.8"
services:
  demo:
    build: .
    image: demo:1.1.0
    restart: always
    volumes:
      - ./data:/data
      - demo-logs:/logs
volumes:
  demo-logs:
# 构建服务镜像
$ docker-compose build
Building demo
Sending build context to Docker daemon  4.608kB
Step 1/3 : FROM alpine:3.13
 ---> 6b7b3256dabe
Step 2/3 : RUN sed -i 's/dl-cdn.alpinelinux.org/mirrors.aliyun.com/g' /etc/apk/repositories
 ---> Running in 90cfa4272c52
Removing intermediate container 90cfa4272c52
 ---> 7ce488d2353a
Step 3/3 : CMD ["/bin/bash"]
 ---> Running in 1695c25617d8
Removing intermediate container 1695c25617d8
 ---> 93e22893911b
Successfully built 93e22893911b
Successfully tagged demo:1.1.0
$ docker images
REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE
demo                1.1.0               bcfaf9c55c9b        3 seconds ago       5.62MB
alpine              3.13                6b7b3256dabe        4 months ago        5.62MB
# 验证镜像
$ docker run --rm demo:1.1.0 cat /etc/apk/repositories
https://mirrors.aliyun.com/alpine/v3.13/main
https://mirrors.aliyun.com/alpine/v3.13/community
# 更改Dockerfile文件,更改CMD为/bin/sh
$ cat Dockerfile
FROM alpine:3.13
RUN sed -i 's/dl-cdn.alpinelinux.org/mirrors.aliyun.com/g' /etc/apk/repositories
CMD ["/bin/sh"]
# 更改compose文件,更改image版本为1.1.1
$ grep image docker-compose.yml
    image: demo:1.1.1
# 重新构建镜像
$ docker-compose build
Step 3/3 : CMD ["/bin/sh"]
...
$ docker images
REPOSITORY          TAG                 IMAGE ID            CREATED              SIZE
demo                1.1.1               188c2693ff90        4 seconds ago        5.62MB
demo                1.1.0               bcfaf9c55c9b        About a minute ago   5.62MB

# 指定目录路径./app,注意默认为相对路径,和docker-compose.yml文件同级的目录
version: "3.8"
services:
  demo:
    build: app
    image: demo:1.2.0
# 指定目录下的Dockerfile文件,context也支持指定url或git仓库地址
version: "3.8"
services:
  demo:
    build:
      context: app
      dockerfile: Dockerfile-dev
    image: demo:1.2.1