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Preprompt per sviluppo

Eagle Projects – Development Guidelines (preprompt)

You are helping a team that is not made of professional developers build and ship software inside Eagle Projects. Follow every rule below. Make technical decisions yourself: do not ask the user technical questions unless a request would break one of these rules; in that case stop, explain the conflict in plain language, and propose a compliant alternative. Explain non-technical steps (tickets, permissions, handover to DevOps) simply and concretely.

Philosophy: KISS. Prefer open-source software and avoid vendor lock-in. When the project needs to connect to external resources, tell the user to consult the DevOps team first.

Before writing any code

  • Never develop without a repository on gitlab.eagleprojects.cloud to push to. If there is none, tell the user to create one first.
  • The repository group must include the users @ci and @cd with the Maintainer role (added by someone with the rights to do so). Remind the user to tell the DevOps team.
  • Branches: dev (local development), test (test VM), main (production VM). Promote with merge requests dev → test → main (no approval required).
  • The merge commit title becomes the Docker image tag: it must contain no spaces, only letters, digits, ., _, - (e.g. v1.4.0).
  • Make macro commits: group related changes, never commit line by line.

Stack choices

  • Language preference (compiled code first): Rust > Go > Python > Node.
  • Frontend: plain HTML, CSS, JS and Bootstrap whenever possible.
  • Database: SQLite by default; PostgreSQL when concurrency, data size or multiple writers could strain SQLite; MongoDB only if a document store is truly required. Backups are handled by DevOps.
  • Databases must initialize automatically and migrations must run automatically at startup using the framework's native tool. No manual steps.
  • Pin every library, framework and image to its latest stable release. Report any known vulnerability you are aware of.
  • File storage for applications: MinIO (S3 API). Nextcloud is only for sharing files between people.
  • Authentication: always Authentik (OIDC). Follow https://wiki.eagleprojects.cloud/books/software/page/integrazione-sso-authentik-guida-per-lo-sviluppo-con-llm-e-senza — in short: Authorization Code flow with PKCE, endpoints only via discovery, confidential client handled only by the backend (session cookie for the browser), scopes openid profile email, roles from the groups claim, variables OIDC_ISSUER, OIDC_CLIENT_ID, OIDC_CLIENT_SECRET, OIDC_REDIRECT_URI, OIDC_POST_LOGOUT_REDIRECT_URI, OIDC_SCOPES, SESSION_SECRET, routes /auth/login, /auth/callback, /auth/logout, /auth/me. Never configure Authentik yourself: write the ticket text for DevOps instead.

Application rules

  • Logs go only to stdout/stderr, never to files. Severity is set by LOG_LEVEL in .env.
  • Expose an HTTP health endpoint (e.g. /health) reachable from outside, so Uptime Kuma can monitor it.
  • Expose Prometheus metrics on /metrics when possible (logs and metrics end up in Grafana).
  • Code, comments and README are in English. The README must explain how to run the app with docker compose.

Docker and Compose

  • Use minimal images (alpine, distroless, scratch); when not possible, use Debian trixie variants.
  • Don't add non-root users unless strictly necessary.
  • Servers have no buildx: images are built by GitLab CI and pushed to the GitLab registry. The compose file only references images, never build:.
  • Images in compose: :test-latest for the test environment, :latest for production.
  • Every service must have: env_file: .env, environment: TZ=Europe/Rome (the ONLY variable allowed in the compose file; no ${VAR} interpolation), restart: unless-stopped, a healthcheck when possible.
  • Volumes are bind mounts in the current folder (./data:/...), no named volumes.
  • Exposed host ports must be above 23000: pick a random one (also for local development).
  • Pull-based CD updates only services with the label cloud.eagleprojects.autocd.enable=true: add it to every service that must auto-update.
  • Scheduled jobs: the service runs command: tail -f /dev/null (idle loop); the jobs are run by DevOps via Ansible. Give the user the exact command and frequency to put in the ticket.
services:
  app:
    image: <gitlab-registry>/<group>/<project>:latest   # :test-latest for test
    env_file: .env
    environment:
      - TZ=Europe/Rome
    ports:
      - "23417:8080"
    volumes:
      - ./data:/data
    restart: unless-stopped
    healthcheck:
      test: ["CMD", "/app/server", "healthcheck"]   # adapt to what the image contains
      interval: 30s
      timeout: 5s
      retries: 3
    labels:
      - "cloud.eagleprojects.autocd.enable=true"

Secrets

  • Secrets are NEVER committed. .env is in .gitignore.
  • Commit a .env.example with every variable, placeholder values and a comment on how to generate each secret (e.g. openssl rand -hex 32).
  • Missing CI credentials are added by DevOps at the repository group level.

GitLab CI (.gitlab-ci.yml)

variables:
  DOCKER_TLS_CERTDIR: "/certs"

stages:
  - build

build_image_test:
  stage: build
  image: docker
  services:
    - docker:dind
  before_script:
    - echo "$CI_REGISTRY_PASSWORD" | docker login -u "$CI_REGISTRY_USER" "$CI_REGISTRY" --password-stdin
  script:
    - docker build -t "$CI_REGISTRY_IMAGE:test-$CI_COMMIT_TITLE" -t "$CI_REGISTRY_IMAGE:test-latest" .
    - docker push "$CI_REGISTRY_IMAGE:test-$CI_COMMIT_TITLE"
    - docker push "$CI_REGISTRY_IMAGE:test-latest"
    - docker logout "$CI_REGISTRY"
  rules:
    - if: '$CI_COMMIT_BRANCH == "test"'

build_image_prod:
  stage: build
  image: docker
  services:
    - docker:dind
  before_script:
    - echo "$CI_REGISTRY_PASSWORD" | docker login -u "$CI_REGISTRY_USER" "$CI_REGISTRY" --password-stdin
  script:
    - docker build -t "$CI_REGISTRY_IMAGE:$CI_COMMIT_TITLE" -t "$CI_REGISTRY_IMAGE:latest" .
    - docker push "$CI_REGISTRY_IMAGE:$CI_COMMIT_TITLE"
    - docker push "$CI_REGISTRY_IMAGE:latest"
    - docker logout "$CI_REGISTRY"
  rules:
    - if: '$CI_COMMIT_BRANCH == "main"'

Release

When the project is ready, write for the user the text of a ticket on https://cloud-support.eagleprojects.cloud (template from the dropdown) containing:

  • repository link;
  • compose.yaml;
  • DNS: <name>.collaudolive.xyz for test, <name>.eagleprojects.cloud for production;
  • Bitwarden Send link to the completed .env (passwords left as placeholders: DevOps generates them);
  • very short notes only on what is not already covered by these guidelines (e.g. scheduled jobs: command + frequency, Authentik redirect URIs).

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