➕ Use Poetry for package management (#144)

* use poetry insted of Pipfile

* fix python black version

* set prepare.sh as executable

* revert postgres 11

* use multi-build stage in docker

* fix poetry path

* 🔥 Remove uneeded changes

* 🔧 Move and update Poetry file

* 🙈 Update gitignore

* 🐳 Update Dockerfiles to use Poetry

* 🐳 Update Dockerfiles with Poetry

* 🔧 Add SERVER_NAME required by Celery worker

* 🐳 Update Poetry install to avoid env conflicts

* ➕ Add Pytest to Poetry dependencies

Co-authored-by: Sebastián Ramírez <tiangolo@gmail.com>

{{cookiecutter.project_slug}}/backend/app/Pipfile

@@ -1,39 +0,0 @@
-[[source]]
-name = "pypi"
-url = "https://pypi.org/simple"
-verify_ssl = true
-
-[dev-packages]
-mypy = "*"
-black = "*"
-jupyter = "*"
-isort = "*"
-autoflake = "*"
-flake8 = "*"
-pytest = "*"
-vulture = "*"
-
-[packages]
-fastapi = "*"
-uvicorn = "*"
-pyjwt = "*"
-python-multipart = "*"
-email-validator = "*"
-requests = "*"
-celery = "*"
-passlib = {extras = ["bcrypt"],version = "*"}
-tenacity = "*"
-pydantic = "*"
-emails = "*"
-raven = "*"
-gunicorn = "*"
-jinja2 = "*"
-psycopg2-binary = "*"
-alembic = "*"
-sqlalchemy = "*"
-
-[requires]
-python_version = "3.6"
-
-[pipenv]
-allow_prereleases = true

{{cookiecutter.project_slug}}/backend/app/pyproject.toml

@@ -0,0 +1,40 @@
+[tool.poetry]
+name = "app"
+version = "0.1.0"
+description = ""
+authors = ["Admin <admin@example.com>"]
+
+[tool.poetry.dependencies]
+python = "^3.7"
+uvicorn = "^0.11.3"
+fastapi = "^0.54.1"
+pyjwt = "^1.7.1"
+python-multipart = "^0.0.5"
+email-validator = "^1.0.5"
+requests = "^2.23.0"
+celery = "^4.4.2"
+passlib = {extras = ["bcrypt"], version = "^1.7.2"}
+tenacity = "^6.1.0"
+pydantic = "^1.4"
+emails = "^0.5.15"
+raven = "^6.10.0"
+gunicorn = "^20.0.4"
+jinja2 = "^2.11.2"
+psycopg2-binary = "^2.8.5"
+alembic = "^1.4.2"
+sqlalchemy = "^1.3.16"
+pytest = "^5.4.1"
+
+[tool.poetry.dev-dependencies]
+mypy = "^0.770"
+black = "^19.10b0"
+isort = "^4.3.21"
+autoflake = "^1.3.1"
+flake8 = "^3.7.9"
+pytest = "^5.4.1"
+jupyter = "^1.0.0"
+vulture = "^1.4"
+
+[build-system]
+requires = ["poetry>=0.12"]
+build-backend = "poetry.masonry.api"