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  • Carlspring Ltd.
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@msievers
msievers / [Spring, JMH] Howto integrate JMH benchmarks with Spring.md
Last active February 24, 2025 04:23
[Spring, JMH] Howto integrate JMH benchmarks with Spring

Motivation

Integrate JMH (Java Microbenchmarking Harness) with Spring (Boot) and make developing and running benchmarks as easy and convinent as writing tests.

Idea

Wrap the necessary JMH boilerplate code within JUnit to benefit from all the existing test infrastructure Spring (Boot) provides. It should be as easy and convinent to write benchmarks as it is to write tests.

TL;DR;

@superseb
superseb / 1_README.md
Last active October 16, 2024 08:32
Generate Rancher 2 cluster/node agent definitions

Generate Rancher 2 cluster/node agents definitions

This is not official documentation/tooling, use with caution

This generate the Kubernetes definitions of the cattle-cluster-agent Deployment and cattle-node-agent DaemonSet, in case it's accidentally removed/server-url was changed/certficates were changed. It is supposed to run on every cluster Rancher manages. If you have custom clusters created in Rancher, see Kubeconfig for Custom clusters created in Rancher how to obtain the kubeconfig to directly talk to the Kubernetes API (as usually it doesn't work via Rancher anymore). For other clusters, use the tools provided by the provider to get the kubeconfig.

IMPORTANT: You get the cluster/node agents definitions from Rancher, and you apply them to the cluster that is created/managed so you need to switch kubeconfig to point to that cluster before applying them.

Running it

@mjpitz
mjpitz / gremlin.d.ts
Created June 27, 2018 03:51
Typescript definition for apache tinkerpop's gremlin-javascript library. Makes for easy use with Typescript language.
declare module "gremlin" {
export namespace driver {
import TraversalStrategy = process.TraversalStrategy;
import Traversal = process.Traversal;
import Bytecode = process.Bytecode;
import GraphSONReader = structure.io.GraphSONReader;
import GraphSONWriter = structure.io.GraphSONWriter;
export class RemoteConnection {
constructor(url: string);
@superseb
superseb / cleanup.sh
Last active August 13, 2024 07:31
Cleanup host added as custom to Rancher 2.0
#!/bin/sh
# OUTDATED: please refer to the link below for the latest version:
# https://github.com/rancherlabs/support-tools/blob/master/extended-rancher-2-cleanup/extended-cleanup-rancher2.sh
docker rm -f $(docker ps -qa)
docker volume rm $(docker volume ls -q)
cleanupdirs="/var/lib/etcd /etc/kubernetes /etc/cni /opt/cni /var/lib/cni /var/run/calico /opt/rke"
for dir in $cleanupdirs; do
echo "Removing $dir"
rm -rf $dir
done
@YurkaninRyan
YurkaninRyan / welcome-to-the-wild-west.html
Created February 1, 2018 20:58
Why am I a developer again?
<html xmlns:o="urn:schemas-microsoft-com:office:office"
xmlns:w="urn:schemas-microsoft-com:office:word"
xmlns:m="http://schemas.microsoft.com/office/2004/12/omml"
xmlns="http://www.w3.org/TR/REC-html40">
<head>
<meta name=Title content="">
<meta name=Keywords content="">
<meta http-equiv=Content-Type content="text/html; charset=utf-8">
<meta name=ProgId content=Word.Document>
@shirakaba
shirakaba / setup.md
Last active February 7, 2025 20:29
Configuring Nexus as a private registry for npm packages

Get the details to connect to your Nexus-managed npm repository

Note: Nexus group repositories (good example in this StackOverflow question) are out of this tutorial's scope. In any case, deployment to group repositories is currently still an open issue for Nexus 3 (and not intended ever to be implemented in Nexus 2). Thus, it is assumed that we'll push & pull to/from the same repository, and ignore the idea of groups hereon in.

  1. Ask your sysadmin for a username & password allowing you to log into your organistation's Nexus Repository Manager.

  2. Test the login credentials on the Nexus Repository manager at: http://localhost:8081/nexus/#view-repositories (localhost in our case is replaced by a static IP, and can only be connected to over VPN). If your organisation requires a VPN to connect to it, connect to that VPN before proceeding with this tutori

@staaldraad
staaldraad / awk_netstat.sh
Last active March 26, 2025 14:46
AWK to get details from /proc/net/tcp and /proc/net/udp when netstat and lsof are not available
# Gawk version
# Remote
grep -v "rem_address" /proc/net/tcp | awk '{x=strtonum("0x"substr($3,index($3,":")-2,2)); for (i=5; i>0; i-=2) x = x"."strtonum("0x"substr($3,i,2))}{print x":"strtonum("0x"substr($3,index($3,":")+1,4))}'
# Local
grep -v "rem_address" /proc/net/tcp | awk '{x=strtonum("0x"substr($2,index($2,":")-2,2)); for (i=5; i>0; i-=2) x = x"."strtonum("0x"substr($2,i,2))}{print x":"strtonum("0x"substr($2,index($2,":")+1,4))}'
# No Gawk
# Local
grep -v "rem_address" /proc/net/tcp | awk 'function hextodec(str,ret,n,i,k,c){
@Luzifer
Luzifer / README.md
Last active March 31, 2025 18:54
Running docker-compose as a systemd service

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
@dghubble
dghubble / kubeception.md
Last active April 24, 2025 02:03
Running QEMU/KVM and Nested Kubernetes on Bare-Metal Kubernetes
@clrung
clrung / Jenkinsfile
Created May 5, 2017 21:48
#!groovy
import groovy.json.JsonOutput
import java.util.Optional
import hudson.tasks.test.AbstractTestResultAction
import hudson.model.Actionable
import hudson.tasks.junit.CaseResult
def speedUp = '--configure-on-demand --daemon --parallel'
def nebulaReleaseScope = (env.GIT_BRANCH == 'origin/master') ? '' : "-Prelease.scope=patch"