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fix: keep OAuth flow working on read-only container roots
The DCR client registry created its storage directory eagerly in __init__,
and DCR_STORAGE_PATH defaulted to /var/lib/aegis-mcp — a path that is neither
created in the image nor mounted as a writable volume. Under the hardened
read-only docker-compose, every /oauth/authorize, /oauth/token, and /register
call hit `mkdir('/var/lib/aegis-mcp')` on a read-only filesystem, raising an
unhandled OSError and returning a bare "Internal Server Error" during login.

- oauth_flow.py: defer the storage-dir mkdir from __init__ to _persist (the
  only write path). authorize/token only read the registry, so they no longer
  require a writable filesystem and stop 500-ing.
- docker/Dockerfile: create and chown /var/lib/aegis-mcp.
- docker-compose.yml + docker/docker-compose.yml: add a persistent
  aegis-mcp-data volume mounted at /var/lib/aegis-mcp so DCR registrations
  survive restarts.
- .env.example: document DCR_STORAGE_PATH and set PUBLIC_BASE_URL to the real
  MCP host.
- README.md: spell out exact values (Gitea host, MCP host, callback URL, MCP
  URL) and add a "required writable volumes" section explaining the cause of
  the login 500.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-06-14 16:28:52 +02:00

83 lines
1.7 KiB
YAML

services:
aegis-mcp:
profiles: ["prod"]
build:
context: .
dockerfile: docker/Dockerfile
container_name: aegis-gitea-mcp
restart: unless-stopped
env_file:
- .env
environment:
ENVIRONMENT: production
MCP_HOST: ${MCP_HOST:-127.0.0.1}
ALLOW_INSECURE_BIND: ${ALLOW_INSECURE_BIND:-false}
expose:
- "8080"
volumes:
- aegis-mcp-logs:/var/log/aegis-mcp
- aegis-mcp-data:/var/lib/aegis-mcp
- ./policy.yaml:/app/policy.yaml:ro
read_only: true
tmpfs:
- /tmp
security_opt:
- no-new-privileges:true
cap_drop:
- ALL
user: "1000:1000"
networks:
- proxy
healthcheck:
test:
[
"CMD",
"python",
"-c",
"import httpx; httpx.get('http://127.0.0.1:8080/health', timeout=5)",
]
interval: 30s
timeout: 10s
retries: 3
start_period: 10s
aegis-mcp-dev:
profiles: ["dev"]
build:
context: .
dockerfile: docker/Dockerfile
container_name: aegis-gitea-mcp-dev
restart: unless-stopped
env_file:
- .env
environment:
ENVIRONMENT: development
MCP_HOST: 127.0.0.1
ALLOW_INSECURE_BIND: false
LOG_LEVEL: DEBUG
EXPOSE_ERROR_DETAILS: true
ports:
- "127.0.0.1:${MCP_PORT:-8080}:8080"
volumes:
- ./src:/app/src:ro
- ./policy.yaml:/app/policy.yaml:ro
- aegis-mcp-logs:/var/log/aegis-mcp
- aegis-mcp-data:/var/lib/aegis-mcp
security_opt:
- no-new-privileges:true
cap_drop:
- ALL
user: "1000:1000"
networks:
- proxy
volumes:
aegis-mcp-logs:
driver: local
aegis-mcp-data:
driver: local
networks:
proxy:
external: true