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Golang Job Queue

A running example of the code from:

Step 1

Small refactorings made to original code:

When Istio Meets Jaeger - An Example of End-to-end Distributed Tracing

Kubernetes is great! It helps many engineering teams to realize the dream of SOA (Service Oriented Architecture). For the longest time, we build our applications around the concept of monolith mindset, which is essentially having a large computational instance running all services provided in an application. Things like account management, billing, report generation are all running from a shared resource. This worked pretty well until SOA came along and promised us a much brighter future. By breaking down applications to smaller components, and having them to talk to each other using REST or gRPC. We ~~hope~~ expect things will only get better from there but only to realize a new set of challenges awaits. How about cross services communication? How about observability between microservices such as logging or tracing? This post demonstrates how to set up OpenTracing inside a Kubernetes cluster that enables end-to-end tracing between serv

	-- show running queries (pre 9.2)
	SELECT procpid, age(clock_timestamp(), query_start), usename, current_query
	FROM pg_stat_activity
	WHERE current_query != '<IDLE>' AND current_query NOT ILIKE '%pg_stat_activity%'
	ORDER BY query_start desc;

	-- show running queries (9.2)
	SELECT pid, age(clock_timestamp(), query_start), usename, query
	FROM pg_stat_activity
	WHERE query != '<IDLE>' AND query NOT ILIKE '%pg_stat_activity%'

	# --------------------------------------------------------------------
	# Copyright (c) 2019 LINKIT, The Netherlands. All Rights Reserved.
	# Author(s): Anthony Potappel
	#
	# This software may be modified and distributed under the terms of the
	# MIT license. See the LICENSE file for details.
	# --------------------------------------------------------------------

	# If you see pwd_unknown showing up, this is why. Re-calibrate your system.
	PWD ?= pwd_unknown

	-- Create a group with read-only access
	CREATE ROLE readonly;

	-- Grant access on public sheme to existing tables
	GRANT USAGE ON SCHEMA public TO readonly;
	ALTER DEFAULT PRIVILEGES IN SCHEMA public GRANT SELECT ON TABLES TO readonly; -- grant access to future tables

	-- Grant access to specific database, repeat code below for each database
	GRANT CONNECT ON DATABASE db_name to readonly;
	ALTER DEFAULT PRIVILEGES IN SCHEMA public GRANT ALL ON TABLES TO readonly; -- grant access to future tables

	#!/bin/bash
	letsencrypt renew -m [EMAIL] --agree-tos
	for file in /etc/ipsec.d/private/*;
	do
	CERTDOMAIN=`basename $file .pem`;
	diff -q /etc/ipsec.d/private/${CERTDOMAIN}.pem /etc/letsencrypt/live/${CERTDOMAIN}/privkey.pem \|\| cp -L /etc/letsencrypt/live/${CERTDOMAIN}/privkey.pem /etc/ipsec.d/private/${CERTDOMAIN}.pem
	diff -q /etc/letsencrypt/live/${CERTDOMAIN}/cert.pem /etc/ipsec.d/certs/${CERTDOMAIN}.pem \|\| cp -L /etc/letsencrypt/live/${CERTDOMAIN}/cert.pem /etc/ipsec.d/certs/${CERTDOMAIN}.pem
	done
	ipsec restart

	#!/usr/bin/env bash

	export TAG=
	export COMMIT_SHA=
	export GITHUB_TOKEN=
	export GITHUB_USER=
	export GITHUB_REPO=
	export GO_BINARY_NAME=

	set -u -e -o pipefail