主页 / 问题 / 1186714
Accepted
muturgan
Asked:2020-10-06 16:54:18 +0000 UTC2020-10-06 16:54:18 +0000 UTC

如何使用更新的图像重新启动容器？

  • 772

该文件docker-compose.yml包含以下条目：

...
mkvworker:
    image: название образа в нашем регистре (какого-то специфичного)
    // какого-то специфичного тэга у образа нет, но образ был перезалит
...

除此服务外，还有许多其他不应停止的服务正在运行。

如何在不停止其他服务的情况下重新启动 mkvworker 以便不使用缓存中的图像，但当前的图像是假脱机的？

提前致谢。

docker

1 个回答

  1. Best Answer

    首先，您使用以下命令显式拉取服务的映像

    docker-compose pull mkvworker

    如果您没有指定服务 ( mkvworker)，那么它将为给定的所有服务提取更新版本的图像docker-compose.yml。重启后

    docker-compose up -d --no-deps mkvworker

    现在是文档的一小段摘录

    $ docker-compose up --help
Builds, (re)creates, starts, and attaches to containers for a service.

Unless they are already running, this command also starts any linked services.

The `docker-compose up` command aggregates the output of each container. When
the command exits, all containers are stopped. Running `docker-compose up -d`
starts the containers in the background and leaves them running.

If there are existing containers for a service, and the service's configuration
or image was changed after the container's creation, `docker-compose up` picks
up the changes by stopping and recreating the containers (preserving mounted
volumes). To prevent Compose from picking up changes, use the `--no-recreate`
flag.

If you want to force Compose to stop and recreate all containers, use the
`--force-recreate` flag.

Usage: up [options] [--scale SERVICE=NUM...] [SERVICE...]

Options:
    -d, --detach               Detached mode: Run containers in the background,
                               print new container names. Incompatible with
                               --abort-on-container-exit.
    --no-color                 Produce monochrome output.
    --quiet-pull               Pull without printing progress information
    --no-deps                  Don't start linked services.
    --force-recreate           Recreate containers even if their configuration
                               and image haven't changed.
    --always-recreate-deps     Recreate dependent containers.
                               Incompatible with --no-recreate.
    --no-recreate              If containers already exist, don't recreate
                               them. Incompatible with --force-recreate and -V.
    --no-build                 Don't build an image, even if it's missing.
    --no-start                 Don't start the services after creating them.
    --build                    Build images before starting containers.
    --abort-on-container-exit  Stops all containers if any container was
                               stopped. Incompatible with -d.
    --attach-dependencies      Attach to dependent containers
    -t, --timeout TIMEOUT      Use this timeout in seconds for container
                               shutdown when attached or when containers are
                               already running. (default: 10)
    -V, --renew-anon-volumes   Recreate anonymous volumes instead of retrieving
                               data from the previous containers.
    --remove-orphans           Remove containers for services not defined
                               in the Compose file.
    --exit-code-from SERVICE   Return the exit code of the selected service
                               container. Implies --abort-on-container-exit.
    --scale SERVICE=NUM        Scale SERVICE to NUM instances. Overrides the
                               `scale` setting in the Compose file if present.

    这里我们感兴趣的部分：

    如果存在服务的现有容器，并且在创建容器后更改了服务的配置或映像，docker-compose up则通过停止并重新创建容器（保留已安装的卷）来获取更改。要防止 Compose 获取更改，请使用该--no-recreate 标志。

    在俄语中，它将up从更新的图像（如果有）重新创建容器，并且没有指定--no-recreate禁用所描述的重新创建的选项。

    PS 一个图像总是有一个标签，但如果没有明确指定，它被认为等于latest。

    • 1

相关问题