I build image of flask app. When I try to send request from their container to service all is ok. Then I try to send request from another container.
docker network create web_server --driver bridge
docker run -dit --name server --network web_server test_container
docker run -dit --name client --network web_server python:3.8.9-slim-buster
And then do docker inspect web_server. Their all good.
Then
docker attach client
import requests
req = requests.get('http://server:8000/health')
There is an error: Failed to establish new connection
How could I fix this problem?
There is Dockerfile of server image
FROM registry.access.redhat.com/ubi8:8.4
WORKDIR /opt/pipeline
COPY . .
ARG MODEL=<link_to_repo>
RUN git clone ${MODEL} model
RUN python setup.py install
EXPOSE 8000
CMD [ "sh", "./app.sh" ]
config file:
bind = '127.0.0.1:8000'
backlog = 1024
workers = 1
worker_class = 'sync'
worker_connections = 1000
timeout = 42
keepalive = 2
reload = True
Run flask+gunicor by :
gunicorn -c config.py server:app
server.py:
from flask import Flask, jsonify, request
app = Flask(__name__)
@app.route(rule='/health', methods=['GET'])
def health():
return '200'
if __name__ == "__main__":
app.run()
Error log:
requests.exceptions.ConnectionError: HTTPSConnectionPool(host='server', port=8000): Max retries exceeded with url: /health (Caused by NewConnectionError('<urllib3.connection.HTTPSConnection object at 0x7f4b3690de20>: Failed to establish a new connection: [Errno 111] Connection refused'))
