Managing Docker images#

In this section, we discuss how to install and run trade-executor Docker images.

Preface#

trade-executor is distributed as a Docker image. Trade executor Docker images are available in Github Container Registry.

../_images/docker-image.drawio.svg
  • The image name is ghcr.io/tradingstrategy-ai/trade-executor

  • The Docker image packages Python interpreter and trade-executor co`mmand

  • It is automatically downloaded when you run docker or docker-compose command

  • Always pin down the Docker image version to a known good version for yourself

  • There shouldn’t be need to build your own Docker image, though we provide instructions for this for developers later on

  • The image is distributed using Github’s Container Registry (ghcr.io) - you need to docker login to this registry to download the image

Installing Docker#

```shell sudo -i apt install ca-certificates curl gnupg install -m 0755 -d /etc/apt/keyrings curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo gpg –dearmor -o /etc/apt/keyrings/docker.gpg sudo chmod a+r /etc/apt/keyrings/docker.gpg echo

“deb [arch=”$(dpkg –print-architecture)” signed-by=/etc/apt/keyrings/docker.gpg] https://download.docker.com/linux/ubuntu “$(. /etc/os-release && echo “$VERSION_CODENAME”)” stable” | sudo tee /etc/apt/sources.list.d/docker.list > /dev/null

apt update apt install docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin

# Make ubuntu user to use Docker # Note: not the safest method usermod -aG docker ubuntu

# Restart need to change to takes effect reboot now ```

Login to GHCR#

Docker images are distributed on Github Container Registry. The access is public, but you need to have an access token through your Github account.

To enable docker login to Github see how to set up Github access token to download Docker images from GHCR.

When you find your token you can do:

GITHUB_USERNAME=miohtama
# Your Personal Access Token (classic)
CR_PAT=ghp_mmc...
docker login ghcr.io --username=$GITHUB_USERNAME --password=$CR_PAT

The first run#

Start by setting up a command-line shell for the latest version of trade-executor. See here for the latest trade-executor releases.

export TRADE_EXECUTOR_VERSION=v163 && export TRADE_EXECUTOR_IMAGE=ghcr.io/tradingstrategy-ai/trade-executor:${TRADE_EXECUTOR_VERSION}
docker run $TRADE_EXECUTOR_IMAGE version

Should output:

Version: v163
Commit hash: 2bb422a35d2643265e38204af022560544294c52
Commit message: Fix build instructions

Docker Compose example#

After Docker runs from the command line, you can create a docker-compose.yml entry for your strategy. Compose configuration files are how Docker containers and instances are run.

You need to pass in local file system folders, or create a Docker volumes for

  • strategy/, or any path where your strategy module is

  • state/ where your strategy persistent state is stored

  • cache/ where downloaded datasets are stored

  • For webhook port we use 19006 in the example below. This needs to be any open ane unoccupied localhost port on your server.

Example docker-compose.yml:

version: "3.9"

# The base template for trade-executor live trading
x-trade-executor: &default-trade-executor
  image: ghcr.io/tradingstrategy-ai/trade-executor:${TRADE_EXECUTOR_VERSION}
  # All live executors have internal exception recovery mechanism,
  # If trade executor stops it must be manually restarted.
  # However webhook server stays around and can still take commands
  # even if the trade executor loop has stopped.
  restart: "no"
  mem_swappiness: 0
  volumes:
    # Map the path from where we load the strategy Python modules
    - ./strategy:/usr/src/trade-executor/strategy
    # Save the strategy execution state in the local filesystem
    - ./state:/usr/src/trade-executor/state
    # Cache the dataset downloads in the local filesystem
    - ./cache:/usr/src/trade-executor/cache
    # Save the log files to the local file system
    - ./logs:/usr/src/trade-executor/logs

  # This is the default trade-executor command to
  # launch as a daemon mode.
  # There are several subcommands.
  command: start

services:

  enzyme-polygon-eth-usdc:
    <<: *default-trade-executor
    container_name: enzyme-polygon-eth-usdc
    ports:
      - "127.0.0.1:19006:3456"
    env_file:
      - ~/secrets/enzyme-polygon-eth-usdc-final.env

We pin down our trade-executor version using TRADE_EXECUTOR_VERSION environment variable. See the repo for stable versions. Do not use latest tag as it is unstable, unless you build the Docker image yourself.

export TRADE_EXECUTOR_VERSION=v13

Now we can try this out. We invoke hello subcommand to see that the application launches correctly.

docker-compose run enzyme-polygon-eth-usdc version

Missing env files#

If you have several services in the same docker-compose.yml and docker-compose complains about missing .env files you can simply create empty files. E.g. touch ~/pancake-eth-usd-sma-final.env.