Skip to content

Instantly share code, notes, and snippets.

View kiyo's full-sized avatar

Kiyohito Yamamoto kiyo

11 followers · 3 following
  • London
View GitHub Profile
@lizthegrey
lizthegrey / attributes.rb
Last active February 5, 2026 21:27
Hardening SSH with 2fa
default['sshd']['sshd_config']['AuthenticationMethods'] = 'publickey,keyboard-interactive:pam'
default['sshd']['sshd_config']['ChallengeResponseAuthentication'] = 'yes'
default['sshd']['sshd_config']['PasswordAuthentication'] = 'no'
@superseb
superseb / get_kubeconfig_custom_cluster_rancher2.sh
Last active October 13, 2023 05:51
Get kubeconfig for custom cluster in Rancher 2.x
#!/bin/bash
# Usage: ./get_kubeconfig_custom_cluster_rancher2.sh cluster_name
# Needs to be run on the server running `rancher/rancher` container
# Check if jq exists
command -v jq >/dev/null 2>&1 || { echo "jq is not installed. Exiting." >&2; exit 1; }
# Check if clustername is given
if [ -z "$1" ]; then
echo "Usage: $0 [clustername]"
@sandor-nemeth
sandor-nemeth / PropertyLogger.java
Last active October 14, 2025 12:05
Spring Boot - Log all configuration properties on application startup
package io.github.sandornemeth.spring;
import java.util.Arrays;
import java.util.stream.StreamSupport;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.context.event.ContextRefreshedEvent;
import org.springframework.context.event.EventListener;
import org.springframework.core.env.AbstractEnvironment;
@enricofoltran
enricofoltran / main.go
Last active December 30, 2025 18:52
A simple golang web server with basic logging, tracing, health check, graceful shutdown and zero dependencies
package main
import (
"context"
"flag"
"fmt"
"log"
"net/http"
"os"
"os/signal"
@joshbuchea
joshbuchea / semantic-commit-messages.md
Last active March 16, 2026 18:53
Semantic Commit Messages

Semantic Commit Messages

See how a minor change to your commit message style can make you a better programmer.

Format: <type>(<scope>): <subject>

<scope> is optional

Example

@reachlin
reachlin / prometheus.yml
Created April 19, 2017 07:06
sample prometheus configuration explained
// For all the confusing Prometheus configuration and
// regular expressions,
// explained in examples.
// Remember, there are default values for each item if it's missing.
// regex is (.*),
// replacement is $1,
// separator is ;
// ,and action is replace
@magnetikonline
magnetikonline / README.md
Last active March 13, 2026 00:36
List all Git repository objects by size.

List all Git repository objects by size

Summary

Bash script which will:

  • Iterate all commits made within a Git repository.
@so0k
so0k / kubectl.md
Last active February 19, 2026 16:57
Playing with kubectl output

Kubectl output options

Let's look at some basic kubectl output options.

Our intention is to list nodes (with their AWS InstanceId) and Pods (sorted by node).

We can start with:

kubectl get no
@Faheetah
Faheetah / Jenkinsfile.groovy
Last active February 27, 2026 11:52
Jenkinsfile idiosynchrasies with escaping and quotes
node {
echo 'Results included as an inline comment exactly how they are returned as of Jenkins 2.121, with $BUILD_NUMBER = 1'
echo 'No quotes, pipeline command in single quotes'
sh 'echo $BUILD_NUMBER' // 1
echo 'Double quotes are silently dropped'
sh 'echo "$BUILD_NUMBER"' // 1
echo 'Even escaped with a single backslash they are dropped'
sh 'echo \"$BUILD_NUMBER\"' // 1
echo 'Using two backslashes, the quotes are preserved'
sh 'echo \\"$BUILD_NUMBER\\"' // "1"
@clintkitson
clintkitson / docker machine, swarm, external volumes
Last active August 15, 2024 15:15
// Disable VirtualBox authentication
VBoxManage setproperty websrvauthlibrary null
// Start SOAP service so REX-Ray can talk to VirtualBox from the container host VMs
/Applications/VirtualBox.app/Contents/MacOS/vboxwebsrv -H 0.0.0.0 -v
// Create a Swarm cluster
docker-machine create --driver=virtualbox default
eval $(docker-machine env default)
TOKEN=$(docker run --rm swarm create)