I have a Docker container specified through Dockerfile which has to be run with the -p flag in order to function properly. On my local machine, after running
docker run -d -p 5000:5000 blagtagger:v0.4.3
the port mapping is shown as 0.0.0.0:5000->5000/tcp and everything works smoothly.
Now, I need to deploy it on AWS Elastic Beanstalk, so I prepared my Dockerrun.aws.json file as follows:
{
"AWSEBDockerrunVersion": "1",
"Ports": [
{
"ContainerPort": 5000,
"HostPort": 5000
}
]
}
However, the container port does not seem to map to the host port correctly. The port mapping is shown as 5000/tcp.
How can I ask Beanstalk to set the mapping to 0.0.0.0:5000->5000/tcp?
It turns out there is no elegant way to accomplish this. Along the lines of the answers here and here, I added the following in a file named .ebextensions/01-commands.config:
commands:
00001_add_port_mapping:
cwd: /tmp
command: 'sed -i "s/docker run -d/docker run -p 5000:5000 -d/" /opt/elasticbeanstalk/hooks/appdeploy/enact/00run.sh'
and discarded the Dockerrun.aws.json file.