如何使用 Elastic Beanstalk 将主机中的文件夹挂载到 Docker 容器？

Question

I have a Dockerfile.aws.json :

{
    "AWSEBDockerrunVersion": "1",
    "Ports": [{
        "ContainerPort": "5000",
        "HostPort": "5000"
    }],
    "Volumes": [{
        "HostDirectory": "/tmp/download/models",
        "ContainerDirectory": "/models"
    }],
    "Logging": "/var/log/nginx"
}

In .ebextensions/download.config , I have:

sources:
  /tmp/download: https://example.com/models.zip

But in my container, /models never gets created. What am I doing wrong?

Answer 1

I tried to replicate the issue, but could not. In my tests the Volumes work as expected.

However, you can do some troubleshooting using runlike tool to inspect the command used to actually run your container. The tool allow you to check if the EB correctly mounts the volume:

docker run --name=funny_driscoll --hostname=628fc70a4331 --env=PORT=8080 --env=PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin --volume=/tmp/fffff:/models --expose=8080 --restart=no --detach=true eb14d2391001./testapp

To use it, login to the EB instance and install it:

sudo yum install python-pip

sudo pip install runlike

# check running container
sudo docker ps 

# inspect the docker run command
runlike <container_id>

This will enable to confirm whether the docker run correctly contains --volume= as well as other configuration options.