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import asyncio
import sys

from aiohttp import ClientSession, ClientTimeout


def seq_iter(seq, step=10):
    if not seq:
        return seq
    from_idx, to_idx, seq_len = 0, step, len(seq)

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Nginx TLS SNI routing, based on subdomain pattern

Nginx can be configured to route to a backend, based on the server's domain name, which is included in the SSL/TLS handshake (Server Name Indication, SNI).
This works for http upstream servers, but also for other protocols, that can be secured with TLS.

prerequisites

• at least nginx 1.15.9 to use variables in ssl_certificate and ssl_certificate_key.
• check nginx -V for the following:

  ...
  TLS SNI support enabled

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##
## tinyproxy.conf -- tinyproxy daemon configuration file
##
## This example tinyproxy.conf file contains example settings
## with explanations in comments. For decriptions of all
## parameters, see the tinproxy.conf(5) manual page.
##

#
# User/Group: This allows you to set the user and group that will be

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RESOURCE="/${OSS_BUCKET_NAME}/${OBJECT_NAME}"
CONTENT_MD5=$(openssl dgst -md5 -binary "${FILEPATH}" | openssl enc -base64)
CONTENT_TYPE=$(file -ib "${FILEPATH}" |awk -F ";" '{print $1}')
DATE_VALUE="`TZ=GMT date +'%a, %d %b %Y %H:%M:%S GMT'`"
STRING_TO_SIGN="PUT\n${CONTENT_MD5}\n${CONTENT_TYPE}\n${DATE_VALUE}\n${RESOURCE}"
SIGNATURE=$(echo -e -n $STRING_TO_SIGN | openssl dgst -sha1 -binary -hmac $OSS_ACCESS_KEY_SECRET | openssl enc -base64)
URL="http://${OSS_BUCKET_NAME}.${OSS_REGION}.aliyuncs.com/${OBJECT_NAME}"
curl -i -q -X PUT -T "${FILEPATH}" \
  -H "Host: ${OSS_BUCKET_NAME}.${OSS_REGION}.aliyuncs.com" \
  -H "Date: ${DATE_VALUE}" \

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## Install Consul
1. download consul
```
wget https://releases.hashicorp.com/consul/1.7.3/consul_1.7.3_linux_amd64.zip
```

2. unzip to `/usr/bin` 

```
sudo unzip consul_1.7.3_linux_amd64.zip -d /usr/bin

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import os
import signal
import subprocess

# Making sure to use virtual environment libraries
activate_this = "/home/ubuntu/tensorflow/bin/activate_this.py"
exec(open(activate_this).read(), dict(__file__=activate_this))

# Change directory to where your Flask's app.py is present
os.chdir("/home/ubuntu/Desktop/Medium/keras-and-tensorflow-serving/flask_server")

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DROP TABLE IF EXISTS location;

CREATE TABLE IF NOT EXISTS `location` (
  `locId` int(11) unsigned NOT NULL AUTO_INCREMENT,
  `country` varchar(2) DEFAULT NULL,
  `region` varchar(2) DEFAULT NULL,
  `city` varchar(1000) DEFAULT NULL,
  `postalCode` varchar(10) DEFAULT NULL,
  `latitude` float DEFAULT NULL,
  `longitude` float DEFAULT NULL,

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#!/usr/bin/env python3
# Use: ./subnet.py <ip/cidr>
# Alt: ./subnet.py <ip> <mask>

import sys

if __name__=="__main__":
    addr = [0, 0, 0, 0]
    mask = [0, 0, 0, 0]
    cidr = 0

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#!/usr/bin/env python3
# Use: ./subnet.py <ip/cidr>
# Alt: ./subnet.py <ip> <mask>

import sys

if __name__=="__main__":
    addr = [0, 0, 0, 0]
    mask = [0, 0, 0, 0]
    cidr = 0