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@piraz
piraz / monitor_service.py
Last active April 6, 2022 02:58
Script that monitors a service running on systemd. If service is not running the script will try to start the service.
#!/bin/python
#
# Copyright 2016 Flavio Garcia
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
@bwbaugh
bwbaugh / ec2-ubuntu-16.04-swap.md
Last active September 27, 2019 06:27
EC2 swap file instructions. Gathered from several online articles / blogs / stackexchange.

Can check if you're using swap with sudo swapon --show and free -h.

EBS volume

Useful for t2.micro and other instances with no access to instance store. Use this if you prefer not to mess with the root volume.

  1. Create the EBS volume e.g., 1 GB.
@faulker
faulker / update_json.sql
Created October 27, 2016 18:40
Example of how to update a Postgresql JSON field using jsonb_set
update tests_summary_data set data = (jsonb_set(to_jsonb(data), '{misc,gap,pa}', '-1', false))::json where data->'misc'->'gap'->>'pa' = '0';