Breaking change in Docker Compose 1.23.0 (fixed in QuantRocket version 1.4.1)

[Brian]

QuantRocket is not working properly with the latest version of Docker Compose.

The problem

Docker Compose used to name containers like this:

quantrocket_ibg1_1

I.e. {project}_{service}_{index}. But starting with the latest version of Compose (1.23.0), it names them with a random slug at the end:

quantrocket_ibg1_1_3d084c3d4b2a

This has broken QuantRocket's ability to determine the service name of containers (e.g. ibg1) and leads to symptoms such as thinking there is a container called ibg11.

Docker introduced this change without any warning or deprecation period and broke quite a few apps in the process.

Short term solution

For now, please downgrade to an earlier version of Docker:

• Mac users: download Docker for Mac 18.06.1-ce-mac73 2018-08-29
• Windows users: download Docker for Windows 18.06.1-ce-win73 2018-08-29 (don't update to newer versions if prompted)
• Linux users: use Docker Compose 1.22.0.

Mac and Windows users: the downgraded version will likely prompt you to upgrade; don't upgrade.

Long term solution

A new QuantRocket release will be out ASAP that works with the latest version of Docker Compose.

[snhuber83]

I would use the opportunity to rewrite the code in a way that it is not relying on the service names from docker-compose at all. That makes it also a lot easier to deploy the solution for instance on Kubernetes.

[Brian]

Compatibility with Docker Compose 1.23.0 is fixed in QuantRocket 1.4.1. Please follow the instructions to update your deployment.