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Daniel Serodio dserodio

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dserodio / psql_check_ssl.sql
Created Aug 20, 2020
Check if PostgreSQL is using SSL
View psql_check_ssl.sql
SELECT, s.ssl, s.version, a.client_addr, a.usename, a.datname, a.query
FROM pg_stat_ssl AS s
JOIN pg_stat_activity AS a ON =;
-- You can see `t|f` in `ssl` field
dserodio /
Created Aug 12, 2020
Hide Google Sheets columns with zeros
function onOpen() {
// get active spreadsheet
var ss = SpreadsheetApp.getActiveSpreadsheet();
// create menu
var menu = [{name: "Hide columns", functionName: "hideColumns"},
dserodio /
Last active Apr 7, 2020
Useful for testing downtime while applying modifications in RDS
while true; do
date -Isec | sed -e 's/+00:00//' | tr '\n' ' '
pg_isready -h -U USER -d DB_NAME
sleep 1
done | tee connection-test-$(date -Imin).log
"""Replace 'name' tag with 'Name' and 'application' with 'Application'
import boto3
def uppercaseTagKeys(arn, name, application=None):
tags = {}
if name:
tags['Name'] = name
dserodio / Dockerfile
Last active Apr 12, 2019
Dockerfile for multi-stage build of a Ruby app which needs Node at build time (credits:
View Dockerfile
# Dockerfile for a multi-stage build of a Ruby app which needs Node at build time
# Thanks to for sharing
FROM ruby:2.5.1 as builder
RUN curl -sL | bash - &&\
curl -sS | apt-key add - &&\
echo "deb stable main" | tee /etc/apt/sources.list.d/yarn.list
dserodio /
Created Nov 12, 2018
Using Google Text to Speech (TTS) in Linux CLI
# gTTS (Google Text-to-Speech), a Python library and CLI tool to interface with Google Translate's text-to-speech API
pipsi install gTTS
sudo apt install mpg123
say() {
gtts-cli "$@" | mpg123 -
dserodio /
Last active Sep 13, 2019
Misc bash snippets
# Show timestamp for history output
export HISTTIMEFORMAT="%d/%m/%y %T "
dserodio /
Created Sep 24, 2018
Config. AWS PostgreSQL RDS to use pgbadger

Set the following properties in RDS:

log_min_duration_statement = 250
log_checkpoints = on
log_connections = on
log_disconnections = on
log_lock_waits = on
log_temp_files = 0
log_autovacuum_min_duration = 0
dserodio /
Created Aug 23, 2018
Sane `docker stats` for ECS #docker
# `docker stats` in Docker 17.06.2, used in ECS at the moment, shows container IDs instead of names
# see
docker stats $(docker ps --format={{.Names}})
dserodio /
Created Aug 9, 2018 — forked from citrusui/
"Dropdowns" in Markdown
How do I dropdown?
This is how you dropdown.

<summary>How do I dropdown?</summary>
This is how you dropdown.