Skip to content

Instantly share code, notes, and snippets.

View aleskiontherun's full-sized avatar

Aleksei Vesnin aleskiontherun

View GitHub Profile
@ruanbekker
ruanbekker / promtail_docker_logs.md
Last active May 31, 2024 23:52
Docker Container Logging using Promtail
@kquinsland
kquinsland / dummy0.netdev
Created December 3, 2019 02:54
How to get consul-agent and systemd.resolvd to co-exist peicefully and still be able to resolve *.consul hostsnames from within docker
# Creates a "dummy" network interface
# we'll configure this interface with a link-local address
# See: https://www.freedesktop.org/software/systemd/man/systemd.netdev.html
##
[NetDev]
Name=dummy0
Kind=dummy
#!/bin/bash
#
# The MIT License (MIT)
#
# Copyright (c) 2014 Mathias Leppich <mleppich@muhqu.de>
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
@scy
scy / opening-and-closing-an-ssh-tunnel-in-a-shell-script-the-smart-way.md
Last active June 10, 2024 09:43
Opening and closing an SSH tunnel in a shell script the smart way

Opening and closing an SSH tunnel in a shell script the smart way

I recently had the following problem:

  • From an unattended shell script (called by Jenkins), run a command-line tool that accesses the MySQL database on another host.
  • That tool doesn't know that the database is on another host, plus the MySQL port on that host is firewalled and not accessible from other machines.

We didn't want to open the MySQL port to the network, but it's possible to SSH from the Jenkins machine to the MySQL machine. So, basically you would do something like

ssh -L 3306:localhost:3306 remotehost