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Kakashi Liu kkc

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@kkc
kkc / get_or_create.py
Created September 8, 2020 07:40 — forked from jleclanche/get_or_create.py
SQLAlchemy get or create
def get_or_create(session, model, defaults=None, **kwargs):
"""
Get or create a model instance while preserving integrity.
"""
try:
return session.query(model).filter_by(**kwargs).one(), False
except NoResultFound:
if defaults is not None:
kwargs.update(defaults)
@kkc
kkc / AWS CLI VPC-Network
Created April 28, 2020 03:29
AWS CLI commands to build a sample VPC
aws> ec2 describe-vpcs
aws> ec2 create-vpc --cidr-block 10.0.0.0/16
aws> ec2 create-tags --resources vpc-f0bff594 --tags Key=Name,Value=sample-vpc
aws> ec2 describe-vpcs
aws> ec2 describe-internet-gateways
aws> ec2 create-internet-gateway
aws> ec2 create-tags --resources igw-6992410d --tags Key=Name,Value=sample-vpc-igw
aws> ec2 attach-internet-gateway --vpc-id vpc-f0bff594 --internet-gateway-id igw-6992410d
aws> ec2 describe-internet-gateways
aws> ec2 describe-subnets --query 'Subnets[?VpcId==`vpc-f0bff594`]'
@kkc
kkc / S3-Static-Sites.md
Created July 25, 2018 07:48 — forked from bradwestfall/S3-Static-Sites.md
Use S3 and CloudFront to host Static Single Page Apps (SPAs) with HTTPs and www-redirects. Also covers deployments.

S3 Static Sites

What this will cover

  • Host a static website at S3
  • Redirect www.website.com to website.com
  • Website can be an SPA (requiring all requests to return index.html)
  • Free AWS SSL certs
  • Deployment with CDN invalidation

Resources

@kkc
kkc / aws-sns-event-template-with-actual-ses-deliverynotification-sns-message
Created June 27, 2016 16:09 — forked from aaronhoffman/aws-sns-event-template-with-actual-ses-deliverynotification-sns-message
Lambda function to process a Amazon SES Delivery Notification message from a SNS Topic into a DynamoDB Table
{
"Records": [
{
"EventSource":"aws:sns",
"EventVersion":"1.0",
"EventSubscriptionArn":"arn:aws:sns:us-west-2:xxxx:xxxx",
"Sns": {
"Type":"Notification",
"MessageId":"88B1B251-2E92-4FC3-BFAA-E3BBD0BAB10A",
"TopicArn":"arn:aws:sns:us-west-2:881222951025:survey-tool-ses-delivery",
@kkc
kkc / function.js
Created April 12, 2016 20:29 — forked from vgeshel/function.js
AWS Lambda function for forwarding SNS notifications to Slack
console.log('Loading function');
const https = require('https');
const url = require('url');
// to get the slack hook url, go into slack admin and create a new "Incoming Webhook" integration
const slack_url = 'https://hooks.slack.com/services/...';
const slack_req_opts = url.parse(slack_url);
slack_req_opts.method = 'POST';
slack_req_opts.headers = {'Content-Type': 'application/json'};
@kkc
kkc / install-mongodb.sh
Created April 8, 2016 04:14 — forked from w0rldart/install-mongodb.sh
Installing MongoDB on Ubuntu 15.04
#!/bin/sh
##
## Bash install script for mongo 3.2 for Ubuntu 15.04, because of
## the replacement of upstart with systemd
##
## - AUTHOR: Alexandru Budurovici <https://w0rldart.com>
## - VERSION: 1.0
##
@kkc
kkc / s3etag.sh
Created January 12, 2016 08:45 — forked from emersonf/s3etag.sh
A Bash script to compute ETag values for S3 multipart uploads on OS X.
#!/bin/bash
if [ $# -ne 2 ]; then
echo "Usage: $0 file partSizeInMb";
exit 0;
fi
file=$1
if [ ! -f "$file" ]; then
@kkc
kkc / aws-multipartUpload.js
Created January 12, 2016 06:19 — forked from sevastos/aws-multipartUpload.js
Example AWS S3 Multipart Upload with aws-sdk for Node.js - Retries to upload failing parts
// Based on Glacier's example: http://docs.aws.amazon.com/AWSJavaScriptSDK/guide/examples.html#Amazon_Glacier__Multi-part_Upload
var fs = require('fs');
var AWS = require('aws-sdk');
AWS.config.loadFromPath('./aws-config.json');
var s3 = new AWS.S3();
// File
var fileName = '5.pdf';
var filePath = './' + fileName;
var fileKey = fileName;
@kkc
kkc / Front-end-Developer-Interview-Questions-TC.md
Created November 19, 2015 10:37 — forked from hanksudo/Front-end-Developer-Interview-Questions-TC.md
Front-end-Developer-Interview-Questions - 前端工程師面試問題集(繁體中文版)

前端工程師面試問題集

@版本 2.0.0

譯注：此翻譯版，主要給不能流利的讀英文的人看，相關專有名詞還是保留原文。翻譯不好地方請協助pull request.

此repository包含了一些前端開發的面試問題，來審查一個有潛力的面試者。這並不是建議你對同一個面試者問上所有的問 (那會花費好幾小時)。從列表中挑幾個題目，應該就夠幫助你審查面試者是否擁有你需要的技能。

Rebecca Murphey 的 Baseline For Front-End Developers 也是一篇很棒且值得讀的文章在你開始面試之前。

@kkc
kkc / gist:6fab0e917363b97beb13
Last active August 29, 2015 14:23 — forked from douglasjarquin/gist:2208690
rds-modify-db-parameter-group {param-group-name} \
--parameters="name=character_set_server, value=utf8, method=pending-reboot" \
--parameters="name=collation_server, value=utf8_general_ci, method=pending-reboot" \
--parameters="name=tmp_table_size, value={DBInstanceClassMemory/16}, method=pending-reboot" \
--parameters="name=max_heap_table_size, value={DBInstanceClassMemory/16}, method=pending-reboot" \
--parameters="name=query_cache_type, value=1, method=pending-reboot" \
--parameters="name=query_cache_size, value=131072, method=pending-reboot" \
--parameters="name=table_open_cache, value=2500, method=pending-reboot" \
--parameters="name=join_buffer_size, value={DBInstanceClassMemory/64}, method=pending-reboot" \
--parameters="name=thread_cache_size, value={DBInstanceClassMemory/12582880}, method=pending-reboot" \