brainsiq

# Install procpath tool (use "python3 -m site --user-base" to find installation directory if needed)
> pip3 install --user procpath

# Get the right version of sqlite
> pip3 install --user apsw-wheels

# Start recording metrics
# i 5 - one datapoint every 5 seconds
# r 120 - 120 datapoints (omit r for continuous capture, and use ctrl+c to stop)
# d db.sqlite - a sqlite database

brainsiq

swagger: "2.0"
info:
  version: '1'
  title: Test API
  description: Test Apiary
host: api.test.com
schemes: [https]
consumes:
- application/json
produces:

brainsiq

# Search all files in current directory that were modified today for one of many strings (stored in /tmp/findStrings)

find -daystart -mtime 0 -type f | xargs grep -lF -f /tmp/findStrings

brainsiq

tcpdump -i any -q -s 0 -W 5 -C 10 port <port> -w /tmp/tcp_capture

# -i any (all interfaces)
# -q (less protocol info)
# -s 0 (capture the full packet)
# -W 5 -C 10 (rotate between 5 10MB files)


tcpdump -A -r /tmp/tcp_capture0

brainsiq

cluster=mycluster
service=myservice

# Construct a copy of the current task definition, copying over the necessary attributes
task_def_arn=$(aws ecs describe-services --cluster "$cluster" --service "$service" | jq -r '.services[0].deployments[0].taskDefinition')
task_def=$(aws ecs describe-task-definition --task-definition "$task_def_arn" | jq '.taskDefinition | { family:.family, containerDefinitions:.containerDefinitions}')

# Register as a new task and deploy it to the service. "wait" does not return until the service is stable (i.e. deployed).
new_task_def_arn=$(aws ecs register-task-definition --cli-input-json "$task_def" | jq -r '.taskDefinition.taskDefinitionArn')
aws ecs update-service --cluster "$cluster" --service "$service" --task-definition "$new_task_def_arn"

brainsiq

/**
* Benchmark creation of a timestamp ([n] ms from now), and from it creating a unix timestamp and native Date object
*/
const Benchmark = require('benchmark');
const moment = require('moment');

const suite = new Benchmark.Suite;
const msToAdd = 36000;
const msInSec = 1000;

brainsiq

Useful helper commands, added to ~/.zshrc

# Open a bash shell in a named container
function ctr-bash() { docker exec -it $1 /bin/bash }

# Start streaming logs from the current time
alias ctr-logstream='docker logs -f --since $(date +%s)'

brainsiq

events {}

http {
    include  /etc/nginx/mime.types;

    gzip on;
    gzip_disable "msie6";

    server {
        listen 8080;