intitial docker impl

Author: RayBytes

.env.example

@@ -0,0 +1,19 @@
+# Port
+PORT=8000
+
+# Auth dir
+CHATGPT_LOCAL_HOME=/data
+
+# show request/stream logs
+VERBOSE=false
+
+# OAuth client id (modify only if you know what you're doing)
+# CHATGPT_LOCAL_CLIENT_ID=app_EMoamEEZ73f0CkXaXp7hrann
+
+# Reasoning controls
+CHATGPT_LOCAL_REASONING_EFFORT=medium       # minimal|low|medium|high
+CHATGPT_LOCAL_REASONING_SUMMARY=auto        # auto|concise|detailed|none
+CHATGPT_LOCAL_REASONING_COMPAT=think-tags   # legacy|o3|think-tags|current
+
+# Force a specific model name
+# CHATGPT_LOCAL_DEBUG_MODEL=gpt-5

DOCKER.md

@@ -0,0 +1,39 @@
+# Docker Deployment
+
+## Quick Start
+1) Setup env:
+   cp .env.example .env
+
+2) Build the image:
+   docker compose build
+
+3) Login:
+   docker compose run --rm --service-ports chatmock-login login
+   - The command prints an auth URL, copy paste it into your browser.
+   - Server should stop automatically once it recieves the tokens and they are saved.
+
+4) Start the server:
+   docker compose up -d chatmock
+
+5) Free to use it in whichever chat app you like!
+
+## Configuration
+Set options in `.env` or pass environment variables:
+- `PORT`: Container listening port (default 8000)
+- `VERBOSE`: `true|false` to enable request/stream logs
+- `CHATGPT_LOCAL_REASONING_EFFORT`: minimal|low|medium|high
+- `CHATGPT_LOCAL_REASONING_SUMMARY`: auto|concise|detailed|none
+- `CHATGPT_LOCAL_REASONING_COMPAT`: legacy|o3|think-tags|current
+- `CHATGPT_LOCAL_DEBUG_MODEL`: force model override (e.g., `gpt-5`)
+- `CHATGPT_LOCAL_CLIENT_ID`: OAuth client id override (rarely needed)
+
+## Logs
+Set `VERBOSE=true` to include extra logging for debugging issues in upstream or chat app requests. Please include and use these logs when submitting bug reports.
+
+## Test
+
+```
+curl -s http://localhost:8000/v1/chat/completions \
+   -H 'Content-Type: application/json' \
+   -d '{"model":"gpt-5","messages":[{"role":"user","content":"Hello world!"}]}' | jq .
+```

Dockerfile

@@ -0,0 +1,22 @@
+FROM python:3.11-slim
+
+ENV PYTHONDONTWRITEBYTECODE=1 \
+    PYTHONUNBUFFERED=1
+
+WORKDIR /app
+
+COPY requirements.txt ./
+RUN pip install --no-cache-dir -r requirements.txt
+
+COPY . /app
+
+RUN mkdir -p /data
+
+COPY docker/entrypoint.sh /entrypoint.sh
+RUN chmod +x /entrypoint.sh
+
+EXPOSE 8000 1455
+
+ENTRYPOINT ["/entrypoint.sh"]
+CMD ["serve"]
+

chatmock/cli.py

@@ -11,6 +11,7 @@
 from .config import CLIENT_ID_DEFAULT
 from .oauth import OAuthHTTPServer, OAuthHandler, REQUIRED_PORT, URL_BASE
 from .utils import eprint, get_home_dir, load_chatgpt_tokens, parse_jwt_claims, read_auth_file
+import os
 
 
 def cmd_login(no_browser: bool, verbose: bool) -> int:
@@ -21,7 +22,8 @@ def cmd_login(no_browser: bool, verbose: bool) -> int:
         return 1
 
     try:
-        httpd = OAuthHTTPServer(("127.0.0.1", REQUIRED_PORT), OAuthHandler, home_dir=home_dir, client_id=client_id, verbose=verbose)
+        bind_host = os.getenv("CHATGPT_LOCAL_LOGIN_BIND", "127.0.0.1")
+        httpd = OAuthHTTPServer((bind_host, REQUIRED_PORT), OAuthHandler, home_dir=home_dir, client_id=client_id, verbose=verbose)
     except OSError as e:
         eprint(f"ERROR: {e}")
         if e.errno == errno.EADDRINUSE:

chatmock/oauth.py

@@ -1,6 +1,7 @@
 from __future__ import annotations
 
 import datetime
+import ssl
 import http.server
 import json
 import secrets
@@ -10,6 +11,8 @@
 import urllib.request
 from typing import Any, Dict, Tuple
 
+import certifi
+
 from .models import AuthBundle, PkceCodes, TokenData
 from .utils import eprint, generate_pkce, parse_jwt_claims, write_auth_file
 
@@ -34,6 +37,7 @@
   </html>
 """
 
+_SSL_CONTEXT = ssl.create_default_context(cafile=certifi.where())
 
 class OAuthHTTPServer(http.server.HTTPServer):
     def __init__(
@@ -174,7 +178,8 @@ def _exchange_code(self, code: str) -> Tuple[AuthBundle, str]:
                 data=data,
                 method="POST",
                 headers={"Content-Type": "application/x-www-form-urlencoded"},
-            )
+            ),
+            context=_SSL_CONTEXT,
         ) as resp:
             payload = json.loads(resp.read().decode())
 
@@ -242,7 +247,8 @@ def _maybe_obtain_api_key(
                 data=exchange_data,
                 method="POST",
                 headers={"Content-Type": "application/x-www-form-urlencoded"},
-            )
+            ),
+            context=_SSL_CONTEXT,
         ) as resp:
             exchange_payload = json.loads(resp.read().decode())
             exchanged_access_token = exchange_payload.get("access_token")
@@ -258,4 +264,3 @@ def _maybe_obtain_api_key(
         }
         success_url = f"{URL_BASE}/success?{urllib.parse.urlencode(success_url_query)}"
         return exchanged_access_token, success_url
-

docker-compose.yml

@@ -0,0 +1,37 @@
+version: "3.9"
+
+services:
+  chatmock:
+    build: .
+    image: chatmock:latest
+    container_name: chatmock
+    command: ["serve"]
+    env_file: .env
+    environment:
+      - CHATGPT_LOCAL_HOME=/data
+    ports:
+      - "8000:8000"
+    volumes:
+      - chatmock_data:/data
+      - ./prompt.md:/app/prompt.md:ro
+    healthcheck:
+      test: ["CMD-SHELL", "python -c \"import urllib.request,sys; sys.exit(0 if urllib.request.urlopen('http://127.0.0.1:8000/health').status==200 else 1)\" "]
+      interval: 10s
+      timeout: 5s
+      retries: 5
+      start_period: 5s
+
+  chatmock-login:
+    image: chatmock:latest
+    profiles: ["login"]
+    command: ["login"]
+    environment:
+      - CHATGPT_LOCAL_HOME=/data
+      - CHATGPT_LOCAL_LOGIN_BIND=0.0.0.0
+    volumes:
+      - chatmock_data:/data
+    ports:
+      - "1455:1455"
+
+volumes:
+  chatmock_data:

docker/entrypoint.sh

@@ -0,0 +1,39 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+export CHATGPT_LOCAL_HOME="${CHATGPT_LOCAL_HOME:-/data}"
+
+cmd="${1:-serve}"
+shift || true
+
+bool() {
+  case "${1:-}" in
+    1|true|TRUE|yes|YES|on|ON) return 0;;
+    *) return 1;;
+  esac
+}
+
+if [[ "$cmd" == "serve" ]]; then
+  PORT="${PORT:-8000}"
+  ARGS=(serve --host 0.0.0.0 --port "${PORT}")
+
+  if bool "${VERBOSE:-}" || bool "${CHATGPT_LOCAL_VERBOSE:-}"; then
+    ARGS+=(--verbose)
+  fi
+
+  if [[ "$#" -gt 0 ]]; then
+    ARGS+=("$@")
+  fi
+
+  exec python chatmock.py "${ARGS[@]}"
+elif [[ "$cmd" == "login" ]]; then
+  ARGS=(login --no-browser)
+  if bool "${VERBOSE:-}" || bool "${CHATGPT_LOCAL_VERBOSE:-}"; then
+    ARGS+=(--verbose)
+  fi
+
+  exec python chatmock.py "${ARGS[@]}"
+else
+  exec "$cmd" "$@"
+fi
+