Eun

// usage:
// testDB := testhelpers.NewTestDatabase(t)
// defer testDB.Close(t)
// println(testDB.ConnectionString(t))
package testhelpers

import (
	"context"
	"fmt"
	"testing"

swinton

Verified commits made easy with GitHub Actions

So you want to commit changes generated by a GitHub Actions workflow back to your repo, and have that commit signed automatically?

Here's one way this is possible, using the REST API, the auto-generated GITHUB_TOKEN, and the GitHub CLI, gh, which is pre-installed on GitHub's hosted Actions runners.

You don't have to configure the git client, just add a step like the one below... Be sure to edit FILE_TO_COMMIT and DESTINATION_BRANCH to suit your needs.

franky47

import React from 'react';
import { useWindowSize } from 'react-use';

// 100vh is broken on mobile (Chrome, Safari):
// https://chanind.github.io/javascript/2019/09/28/avoid-100vh-on-mobile-web.html

export default function use100vh() {
  const ref = React.useRef();
  const { height } = useWindowSize();

haproxytechblog

#
# This is the ultimate HAProxy 2.0 "Getting Started" config
# It demonstrates many of the features available which are now available 
# While you may not need all of these things, this can serve
# as a reference for your own configurations.
#
# Have questions?  Check out our community Slack:
# https://slack.haproxy.org/
#

gricard

If you enjoyed reading this, I'm intending to do more blogging like this over here: https://cdgd.tech

This is not a complaint about Webpack or v4 in any way. This is just a record of my process trying it out so I could provide feedback to the webpack team

Hmm... I don't see any docs for 4.0 on https://webpack.js.org. I guess I'll just wing it. All I need to do is npm i -D webpack@next, right?

+ webpack@4.0.0-beta.2

marwei

Kafka 0.11.0.0 (Confluent 3.3.0) added support to manipulate offsets for a consumer group via cli kafka-consumer-groups command.

1. List the topics to which the group is subscribed

kafka-consumer-groups --bootstrap-server <kafkahost:port> --group <group_id> --describe

Note the values under "CURRENT-OFFSET" and "LOG-END-OFFSET". "CURRENT-OFFSET" is the offset where this consumer group is currently at in each of the partitions.

2. Reset the consumer offset for a topic (preview)

Luzifer

Running docker-compose as a systemd service

Files

File	Purpose
/etc/compose/docker-compose.yml	Compose file describing what to deploy
/etc/systemd/system/docker-compose-reload.service	Executing unit to trigger reload on docker-compose.service
/etc/systemd/system/docker-compose-reload.timer	Timer unit to plan the reloads
/etc/systemd/system/docker-compose.service	Service unit to start and manage docker compose

miry

variable "server_ip" {
  default = "10.0.0.2"
}

variable "server_hostname" {
  default = "node01"
}

# Ubuntu reference for hostnamectl: http://manpages.ubuntu.com/manpages/trusty/man1/hostnamectl.1.html
resource "null_resource" "set-hostname" {

DavidWells

Aligning images

This is a guide for aligning images.

See the full Advanced Markdown doc for more tips and tricks

left alignment

bastman

Docker - How to cleanup (unused) resources

Once in a while, you may need to cleanup resources (containers, volumes, images, networks) ...

delete volumes

// see: https://github.com/chadoe/docker-cleanup-volumes

$ docker volume rm $(docker volume ls -qf dangling=true)

$ docker volume ls -qf dangling=true | xargs -r docker volume rm