docker-compose build --no-cache 不起作用

docker-compose build --no-cache 不起作用

我对其中一项服务的 Dockerfile 进行了一些更新,但在运行时,这些更改并未反映出来docker-compose build,甚至没有--no-cache选择。

我在运行之前添加了两个参数pip install -f requirements.txt,但它们不会在任何时候执行:它直接进入需求步骤。

$ docker-compose build --no-cache
mongo uses an image, skipping
postgres uses an image, skipping
elasticsearch uses an image, skipping
Building nucleo
Step 1/9 : FROM python:3.6
 ---> 2bb3204ab1d1
Step 2/9 : COPY core/ /container_core/
 ---> cc1eadcb80a3
Step 3/9 : WORKDIR /container_core
 ---> Running in e8afa25b9c9a
Removing intermediate container e8afa25b9c9a
 ---> f9b928dee6f5
Step 4/9 : RUN pip install -r requirements.txt
 ---> Running in 84f474edb526
^CERROR: Aborting.

docker-compose.yml

services:
    mongo:
        image: "mongo:4.0.5"
        container_name: compose_mongo
        restart: always
        environment:
            - MONGO_INITDB_ROOT_USERNAME=mongo
            - MONGO_INITDB_ROOT_PASSWORD=mongopass
        ports:
            - "27017:27017"
    core:
        build:
            context: /home/ivanleoncz/git/core
            dockerfile: Dockerfile
        container_name: compose_core
        depends_on:
            - mongo
        env_file:
            - .env
        ports:
            - "8000:8000"

Dockerfile

FROM python:3.6
COPY core/ /container_core/
WORKDIR /container_core
# must run before requirements
RUN pip install --upgrade pip
RUN pip install urllib3=1.20
# then, run the requirements
RUN pip install -r requirements.txt
CMD ["python3", "manage.py", "makemigrations", "app1"]
CMD ["python3", "manage.py", "makemigrations", "app2"]
CMD ["python3", "manage.py", "makemigrations", "app3"]
CMD ["python3", "manage.py", "migrate"]
CMD ["python3", "manage.py", "runserver"]

我正在使用 docker-compose 1.21.2 和 Ubuntu 18.04.2。

docker-compose尽管我描述了我想执行构建,但如何保证没有使用旧版本的Dockerfile,而没有任何缓存( --no-cache)?

答案1

我从与标签上docker-compose build --no-cache定义的目录不同的目录运行contextdocker-compose.yaml

core:
    build:
        context: /home/ivanleoncz/git/core
        dockerfile: Dockerfile

在这个不同的目录中,我正在更新我的 Dockerfile,在上下文目录中,我有一个过时的 Dockerfile

由于定义了上下文,因此/home/ivanleoncz/git/core/Dockerfile在过程中考虑了它docker-compose build --no-cache,而不是我当前目录中的 Dockerfile。

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