lhotari

GitHub Actions debugging tip: You can connect to the running build with ssh and get a shell within the GitHub Actions runner VM.

The recommended approach is to run the build in a PR in your own fork and make only temporary changes to enable the ssh shell. GitHub Actions runs within your own fork when you open a PR to your own fork. Before opening the PR, it's useful to sync your fork's master branch with origin/master. Please check instructions for "Personal GitHub Actions CI" in the dev mailing list archives.

Here's an example of SSH debugging I have: lhotari/pulsar-helm-chart#1 . I removed all other GitHub Actions workflows and added this action step to the workflow where I wanted to connect with ssh:

      - name: Setup upterm session
        uses: lhotari/action-upterm@v1
 with:

lhotari

#!/bin/bash
registry=localhost:32000
repositories=$(curl ${registry}/v2/_catalog)
for repo in $(echo "${repositories}" | jq -r '.repositories[]'); do
  echo $repo
  tags=$(curl -sSL "http://${registry}/v2/${repo}/tags/list" | jq -r '.tags[]')
  for tag in $tags; do
    echo $tag
    curl -v -sSL -X DELETE "http://${registry}/v2/${repo}/manifests/$(
      curl -sSL -I \

lhotari

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lhotari

#!/usr/bin/env python3
# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements.  See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership.  The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License.  You may obtain a copy of the License at
# 
#   http://www.apache.org/licenses/LICENSE-2.0

lhotari

#!/bin/bash
sudo apt-get update
sudo apt-get install --install-recommends linux-generic-hwe-18.04 xserver-xorg-hwe-18.04

sudo mkdir /etc/default/grub.d

# adjust i915 related kernel parameters
# references for different settings:
# intel_iommu=igfx_off - https://bugs.archlinux.org/task/55629
# intel_idle.max_cstate=4

lhotari

apt-get install autojump zsh tig git htop vim wget
apt-get install apt-transport-https ca-certificates curl software-properties-common

apt-get install libgnome-keyring-dev && (cd /usr/share/doc/git/contrib/credential/gnome-keyring && make)

apt-get install indicator-sysmonitor
apt-get install keepass2

curl -fsSL https://download.docker.com/linux/ubuntu/gpg | apt-key add -
add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable"

lhotari

sudo apt-get install linux-generic-hwe-16.04 linux-image-generic-hwe-16.04 linux-tools-generic-hwe-16.04 linux-image-extra-virtual-hwe-16.04
sudo apt-get install xserver-xorg-hwe-16.04 

lhotari

#!/bin/bash
# Disables Spotlight / mdworker and Time Machine backups for all build and .gradle directories under the working directory.
/usr/bin/find . '(' -name build -or -name .gradle ')' -exec touch "{}/.metadata_never_index" \;
/usr/bin/find . '(' -name build -or -name .gradle ')' -exec xattr -w com.apple.metadata:com_apple_backup_excludeItem com.apple.backupd "{}" \;

lhotari

// Example of using StAX to split a large XML document and parse a single element using XmlSlurper

import javax.xml.stream.XMLInputFactory
import javax.xml.stream.XMLStreamReader
import javax.xml.transform.Transformer
import javax.xml.transform.TransformerFactory
import javax.xml.transform.sax.SAXResult
import javax.xml.transform.stax.StAXSource

def url = new URL("http://repo2.maven.org/maven2/archetype-catalog.xml")

lhotari

import javax.management.DynamicMBean;
import javax.management.MBeanException;
import javax.management.ReflectionException;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;

public class DiagnosticCommandMBeanHelper {

    public static String threadPrint() throws ReflectionException, MBeanException {
        try {