Merge branch 'poc' into 'master'

PoC with user creation - closes #149

See merge request !1

.gitlab-ci.yml

+stages:
+  - prepare
+  - tests
+  - build
+  - push
+  - deploy
+
+
+tests:
+  stage: tests
+  image: python:3.9
+  script:
+    - apt-get update && apt-get install libldap2-dev libsasl2-dev && apt-get clean
+    - pip install -r requirements.txt
+    - flake8
+#    - pytest --cov --cov-report term --cov-report xml --junitxml=report.xml
+  artifacts:
+    reports:
+      cobertura: coverage.xml
+      junit: report.xml
+  variables:
+    PIP_CACHE_DIR: "$CI_PROJECT_DIR/.cache/pip"
+  cache:
+    paths:
+      - .cache/pip
+.registry:
+  before_script:
+    - echo -n $CI_REGISTRY_PASSWORD | podman login -u $CI_REGISTRY_USER --password-stdin $CI_REGISTRY
+
+build:
+  stage: build
+  image: quay.io/podman/stable
+  extends: .registry
+  script:
+    - podman pull $CI_REGISTRY_IMAGE:latest || true
+    - >
+      podman build 
+      --pull
+      --build-arg http_proxy=$http_proxy
+      --build-arg https_proxy=$https_proxy
+      --build-arg no_proxy=$no_proxy
+      --cache-from $CI_REGISTRY_IMAGE:latest
+      --tag $CI_REGISTRY_IMAGE:dev
+      .
+
+    - podman push $CI_REGISTRY_IMAGE:dev
+
+push latest:
+  variables:
+    GIT_STRATEGY: none
+  image: quay.io/podman/stable
+  stage: push
+  extends: .registry
+  only:
+    - master
+  script:
+    - podman pull $CI_REGISTRY_IMAGE:dev
+    - podman tag $CI_REGISTRY_IMAGE:dev $CI_REGISTRY_IMAGE:latest
+    - podman push $CI_REGISTRY_IMAGE:latest
+
+push tag:
+  variables:
+    GIT_STRATEGY: none
+  image: quay.io/podman/stable
+  stage: push
+  extends: .registry
+  only:
+    - tags
+  script:
+    - podman pull $CI_REGISTRY_IMAGE:dev
+    - podman tag $CI_REGISTRY_IMAGE:dev $CI_REGISTRY_IMAGE:$CI_COMMIT_REF_NAME
+    - podman push $CI_REGISTRY_IMAGE:$CI_COMMIT_REF_NAME

Dockerfile

+from python:3.9
+#run apt-get update && apt-get install libldap2-dev libsasl2-dev && apt-get clean && rm -rf /var/lib/apt/lists/*
+copy requirements.txt /
+run pip install -r /requirements.txt
+#ENV FLASK_APP=usersservice
+#ENV FLASK_ENV=development
+WORKDIR /app
+#cmd python main.py
+#cmd flask run --host=0.0.0.0
+#CMD waitress-serve --port 5000 --call 'gateway:create_app'
+CMD gunicorn --bind 0.0.0.0:5000 wsgi:app --access-logfile -
+#CMD waitress-serve --port 5000 --call 'gateway:create_app'
+copy app /app

Makefile

+TAG = latest
+APP = $(shell basename $(CURDIR))
+build:
+	docker build -t $(APP):$(TAG) .
+
+run:
+	docker run  --rm -e FLASK_ENV=development -p 5000:5000 -it $(APP):$(TAG)
+
+test:
+	docker run  --rm -e FLASK_ENV=development -it $(APP):$(TAG) pytest --cov --cov-report=term --cov=report=xml
+
+lint:
+	docker run  --rm -e FLASK_ENV=development -it $(APP):$(TAG) flake8

app/gateway/__init__.py

+from flask import Flask
+from flask_cors import CORS
+from flask_graphql import GraphQLView
+from gateway.schema import schema
+
+
+def create_app(test_config=None):
+    app = Flask(__name__, instance_relative_config=True)
+    app.logger.setLevel("DEBUG")
+
+    app.add_url_rule(
+        "/graphql",
+        view_func=GraphQLView.as_view(
+            "graphql",
+            schema=schema,
+            graphiql=True
+        )
+    )
+
+    CORS(app)
+    return app

app/gateway/schema.py

+from graphene import ObjectType, Schema, Field, List
+import gateway.schema_user as schema_user
+
+
+class Query(ObjectType):
+    user = Field(schema_user.User)
+    users = List(schema_user.User)
+
+    resolve_user = schema_user.resolve_user
+    resolve_users = schema_user.resolve_users
+
+
+class Mutations(ObjectType):
+    user_register = schema_user.RegisterUser.Field()
+
+
+schema = Schema(query=Query, mutation=Mutations)

app/gateway/schema_user.py

+import requests
+import os
+from graphene import ObjectType, String, Field, Mutation
+
+
+def resolve_user(root, infp):
+    return User()
+
+
+def resolve_users(root, infp):
+    return [User(sn="s2")]
+
+
+class User(ObjectType):
+    class Meta:
+        description = 'a user'
+    sn = String()
+    gn = String()
+    mail = String()
+    login = String()
+
+
+class RegisterUser(Mutation):
+    class Arguments:
+        sn = String(required=True)
+        gn = String(required=True)
+        mail = String(required=True)
+        login = String(required=True)
+        password = String(required=True)
+    user = Field(User)
+    error = String()
+
+    def mutate(root, info, sn, gn, mail, login, password):
+        print("Creating user:",
+              sn,
+              gn,
+              login,
+              mail)
+        usersservice_endpoint = os.environ.get('USERSSERVICE_ENDPOINT')
+        response = requests.post(usersservice_endpoint, json={
+            "sn": sn,
+            "gn": gn,
+            "login": login,
+            "password": password,
+            "mail": mail,
+        })
+        if response.status_code == 409:
+            return {'error': "User already exists: " +
+                    str(response.content)}
+        if response.status_code == 400:
+            return {'error': "Bad request. TODO better messaging: " +
+                    str(response.content)}
+
+        j = response.json()
+        del(j['password'])
+        user = RegisterUser(User(**j))
+#            sn = j['sn'],
+#            gn = j['gn'],
+#            login = j['login'],
+#            mail = j['mail']
+#        ))
+        return user

app/wsgi.py

+from gateway import create_app
+
+app = create_app()

requirements.txt

+aniso8601==7.0.0
+attrs==21.4.0
+certifi==2021.10.8
+charset-normalizer==2.0.9
+click==8.0.3
+coverage==6.2
+flake8==4.0.1
+Flask==2.0.2
+Flask-Cors==3.0.10
+Flask-GraphQL==2.0.1
+graphene==2.1.9
+graphql-core==2.3.2
+graphql-relay==2.0.1
+graphql-server-core==1.2.0
+greenlet==1.1.2
+gunicorn==20.1.0
+idna==3.3
+iniconfig==1.1.1
+itsdangerous==2.0.1
+Jinja2==3.0.3
+MarkupSafe==2.0.1
+mccabe==0.6.1
+packaging==21.3
+pluggy==1.0.0
+promise==2.3
+py==1.11.0
+pycodestyle==2.8.0
+pyflakes==2.4.0
+pyparsing==3.0.6
+pytest==6.2.5
+pytest-cov==3.0.0
+requests==2.26.0
+Rx==1.6.1
+singledispatch==3.7.0
+six==1.16.0
+toml==0.10.2
+tomli==2.0.0
+typing-extensions==3.10.0.2
+urllib3==1.26.7
+waitress==2.0.0
+Werkzeug==2.0.2