Created
August 21, 2018 14:14
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Docker example
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from flask import Flask | |
from redis import Redis, RedisError | |
import os | |
import socket | |
redis = Redis(host='redis', db=0, socket_connect_timeout=2, socket_timeout=2) | |
app = Flask(__name__) | |
@app.route('/') | |
def hello(): | |
try: | |
visits = redis.incr("cnt") | |
except RedisError: | |
visits = "<i>Redis Error</i>" | |
html = "<h3>Hello {name}!</h3> <b>Hostname: {hostname}</b><br/> Visits: <i>{visits}</i>" | |
return html.format(name=os.getenv("NAME", "world"), hostname=socket.gethostname(), visits=visits) | |
if __name__=='__main__': | |
app.run(host='0.0.0.0', port=80) | |
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version: "3" | |
services: | |
web: | |
build: . | |
# image: friendlyhello #Create image as docker build -t friendlyhello . | |
ports: | |
- "4000:80" | |
links: | |
- redis | |
redis: | |
image: redis | |
volumes: | |
- "/Users/mabit/Documents/Nitin/NitinSandbox/dockery/pything01/data:/data" | |
command: redis-server --appendonly yes | |
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version: "3" | |
services: | |
web: | |
image: friendlyhello | |
deploy: | |
replicas: 1 | |
restart_policy: | |
condition: on-failure | |
resources: | |
limits: | |
cpus: "0.5" | |
memory: 50M | |
ports: | |
- "4000:80" | |
networks: | |
- webnet | |
redis: | |
image: redis | |
ports: | |
- "6379:6379" | |
volumes: | |
- "/Users/mabit/Documents/Nitin/NitinSandbox/dockery/pything01/data:/data" | |
deploy: | |
placement: | |
constraints: [node.role==manager] | |
command: redis-server --appendonly yes | |
networks: | |
- webnet | |
networks: | |
webnet: | |
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FROM python:2.7-slim | |
WORKDIR /app | |
ADD . /app | |
RUN pip install --trusted-host pypi.python.org -r requirements.txt | |
EXPOSE 80 | |
ENV NAME World | |
CMD [ "python", "app.py" ] |
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Flask | |
Redis |
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