ninjarobot

Trace .NET Core Applications on Linux with strace

Troubleshooting a running application can be difficult, usually it starts around checking log output and then following through the likely code paths to get an idea of where a failure may occur. In a development environment, you might attach a debugger a step through source, but troubleshooting isn't always that convenient. There are several helpful tools that can assist, but one that gives the most comprehensive view of a running application is strace. With strace you are able to see all of the system calls an application makes to get a detailed understanding of what is going on "under the hood" in order to troubleshoot an issue.

Take a simple "hello world" F# application, the kind you get from dotnet new console -lang F# -n strace-sample". Build it with dotnet build and then launch it with strace to get a trace of all the system calls in a file called trace.log(adjusting for your build output path if on a different framework vers

innovia

#!/bin/bash
set -e
set -o pipefail

# Add user to k8s using service account, no RBAC (must create RBAC after this script)
if [[ -z "$1" ]] || [[ -z "$2" ]]; then
 echo "usage: $0 <service_account_name> <namespace>"
 exit 1
fi

jgsqware

On master and nodes

Pull images form internet access laptop

docker pull gcr.io/google_containers/kube-apiserver-amd64:v1.5.0
docker pull gcr.io/google_containers/kube-controller-manager-amd64:v1.5.0
docker pull gcr.io/google_containers/kube-proxy-amd64:v1.5.0
docker pull gcr.io/google_containers/kube-scheduler-amd64:v1.5.0
docker pull weaveworks/weave-npc:1.8.2
docker pull weaveworks/weave-kube:1.8.2

chenrui333

FROM amazonlinux:latest

MAINTAINER rui.chen <rui.chen@harvardbusiness.org> 

ADD pingfederate-8.3.0.zip /

RUN yum install -y unzip wget 

RUN wget --no-cookies --header "Cookie: gpw_e24=xxx; oraclelicense=accept-securebackup-cookie;" "http://download.oracle.com/otn-pub/java/jdk/8u91-b14/jdk-8u91-linux-x64.rpm" && \
	yum install -y jdk-8u91-linux-x64.rpm 

t413

#!/usr/bin/env sh
## update.sh - manage a OpenWRT LetsEncrypt https instalation
# HOWTO: 
# - put update.sh in its own directory (like /root/.https)
# - run ./update.sh your.domain.com (that domain needs to point to your router)
#  * this get an issued cert from letsencrypt.org using the webroot verification method
#  * also installs curl and ca-certificates packages
# - use crontab -e; add the line `0 0 * * * "/root/.https/update.sh" >>/root/.https/log.txt 2>&`
#  * this runs the update every day, logging everything to log.txt
#

stevejenkins

# MOVED TO https://github.com/stevejenkins/unifi-linux-utils

squarism

Tabs and Windows

Function	Shortcut
New Tab	⌘ + T
Close Tab or Window	⌘ + W (same as many mac apps)
Go to Tab	⌘ + Number Key (ie: ⌘2 is 2nd tab)
Go to Split Pane by Direction	⌘ + Option + Arrow Key
Cycle iTerm Windows	⌘ + backtick (true of all mac apps and works with desktops/mission control)

ryancurrah

#cloud-config
#type: master

---
hostname: master01
users:
  - name: core
    passwd: $6$rounds=4096$qTfXAnCBjkQ326$zRFWfe45s3quKvxl2pax1Ml44PCPNQQYXcJ.r0FfkN5jwecdipepTLMNEQCsAcGJkH5NA6BCPr4VIGJNftBIe.
    groups:
      - sudo

4Evergreen4

ColorForeground=#f2f2e5e5bcbc
ColorBackground=#323230302f2f
ColorCursor=#d65bc4cd8ca1
ColorPalette=#323230302f2f;#cccc24241d1d;#989897971a1a;#d7d799992121;#454585858888;#b1b162628686;#68689d9d6a6a;#929283837474;#1d1d20202121;#fbfb49493434;#b8b8bbbb2626;#fafabdbd2f2f;#8383a5a59898;#d3d386869b9b;#8e8ec0c07c7c;#b9b9a6a69393

abyx

var HEADER_NAME = 'MyApp-Handle-Errors-Generically';
var specificallyHandleInProgress = false;

angular.module('myApp').factory('RequestsErrorHandler', ['$q', function($q) {
    return {
        // --- The user's API for claiming responsiblity for requests ---
        specificallyHandled: function(specificallyHandledBlock) {
            specificallyHandleInProgress = true;
            try {
                return specificallyHandledBlock();