codex · Docker Compose

Codex is OpenAI's coding agent CLI, packaged on the agentimg foundations. This page runs it on Docker Compose with copy-paste examples; every file in this directory is shown below exactly as it exists in the repository.

See the tool overview for image variants, tags, and registries.

Requirements

Docker or a compatible runtime
OPENAI_API_KEY set in your environment (never baked into the image)

Files in this directory

`compose.sh`

bash

#!/usr/bin/env bash
set -euo pipefail

case "${WORKSPACE:-}" in
  /*) ;;
  "") echo "Set WORKSPACE to an absolute host path." >&2; exit 2 ;;
  *) echo "WORKSPACE must be an absolute host path: $WORKSPACE" >&2; exit 2 ;;
esac

script_dir=$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")" && pwd)
cd "$script_dir"
exec docker compose "$@"

`docker-compose.yml`

yaml

# WORKSPACE="$PWD" ./compose.sh run --rm codex
name: codex

services:
  codex:
    image: ${CODEX_IMAGE:-ghcr.io/hambn/codex:latest}
    environment:
      OPENAI_API_KEY: ${OPENAI_API_KEY:?set OPENAI_API_KEY}
    volumes:
      - ${WORKSPACE:?Set WORKSPACE to an absolute host path}:/workspace
    stdin_open: true
    tty: true
    networks: [codex]

networks:
  codex:
    name: codex

`airgapped.docker-compose.yml`

yaml

# WORKSPACE="$PWD" ./compose.sh -f airgapped.docker-compose.yml run --build --rm codex
name: codex-airgapped

services:
  codex:
    build:
      context: ../../images/ubuntu-browser
    image: local/codex:ubuntu-browser
    pull_policy: never
    environment:
      OPENAI_API_KEY: ${OPENAI_API_KEY:?set OPENAI_API_KEY}
    volumes:
      - ${WORKSPACE:?Set WORKSPACE to an absolute host path}:/workspace
    stdin_open: true
    tty: true
    networks: [codex]

networks:
  codex:
    name: codex-airgapped

More examples

Point the stack at a different workspace

bash

WORKSPACE=/srv/projects/my-app ./compose.sh run --rm codex

Use a pinned image

bash

CODEX_IMAGE=ghcr.io/hambn/codex:<tag> ./compose.sh run --rm codex