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J. Elliot Taylor jaytaylor

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@jaytaylor
jaytaylor / bbolt-fault.log.md
Created June 28, 2018 06:27
For https://github.com/coreos/bbolt/issues/107

Got this from bbolt today, not sure what to make of it. Is this a known issue? Have I done something wrong?

Jun 28 00:11:24 andromeda.host andromeda[28574]: fatal error: fault
Jun 28 00:11:24 andromeda.host andromeda[28574]: unexpected fault address 0x7fd918028008
Jun 28 00:11:24 andromeda.host andromeda[28574]: [signal SIGSEGV: segmentation violation code=0x1 addr=0x7fd918000000 pc=0x95324d]
Jun 28 00:11:24 andromeda.host andromeda[28574]: goroutine 59 [running]:
Jun 28 00:11:24 andromeda.host andromeda[28574]: runtime.throw(0xb73dca, 0x5)
Jun 28 00:11:24 andromeda.host andromeda[28574]:         /usr/local/go/src/runtime/panic.go:616 +0x81 fp=0xc42007f198 sp=0xc42007f178 pc=0x42c851
Jun 28 00:11:24 andromeda.host andromeda[28574]: runtime.sigpanic()
@jaytaylor
jaytaylor / _README.md
Created April 16, 2018 16:42
hn-utils example favorites output for user: sharemywin

hn-utils favorites usage example

hackernews favorites output for user sharemywin

Package source code is available from jaytaylor.com/hn-utils.

Command

hn-utils -u sharemywin
@jaytaylor
jaytaylor / 0-example-pre-autopep8-formatting.py
Created April 6, 2018 18:36
autopep8 command: autopep8 --pep8-passes 2000 --verbose --aggressive --aggressive --ignore=E501,E722
#!/usr/bin/env python
# -*- coding: utf-8 -*-
import argparse
import sys
def main(args):
parser = argparse.ArgumentParser(
description='Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry\'s standard dummy text.. ',
argument_default=False,
@jaytaylor
jaytaylor / html2text-issue-28.go
Created March 19, 2018 15:59
Reference: https://github.com/jaytaylor/html2text/issues/28
package main
import (
"fmt"
"github.com/jaytaylor/html2text"
)
func main() {
inp := ` <html><head><meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3Diso-8859-=1"><style type=3D"text/css" style=3D"display:none;"><!-- P {margin-top:0;margi=n-bottom:0;} --></style></head><body dir=3D"ltr"><div id=3D"divtagdefaultwrapper" style=3D"font-size:12pt;color:#000000;font=-family:Calibri,Helvetica,sans-serif;" dir=3D"ltr"><p style=3D"margin-top:0;margin-bottom:0"><br></p><p style=3D"margin-top:0;margin-bottom:0"><br></p><div id=3D"Signature"><div id=3D"divtagdefaultwrapper" dir=3D"ltr" style=3D"font-size:12pt; color=:rgb(0,0,0); background-color:rgb(255,255,255); font-family:Calibri,Arial,H=elvetica,sans-serif,EmojiFont,&quot;Apple Color Emoji&quot;,&quot;Segoe UI =Emoji&quot;,NotoColorEmoji,&quot;Segoe UI Symbol&quot;,&quot;Android Emoji&=quot;,EmojiSymbols,EmojiFont,&quot;Apple Color Emoji&quot;,&quot;Segoe UI E=moji&quot;,NotoColorEmoji,&quot;Segoe UI Symbol&quot;,&quot;Android Emoji&q=uot;,EmojiSy
@jaytaylor
jaytaylor / macos-howto-kill-pid-listening-on-port.md
Created March 16, 2018 19:12
HOWTO: Kill PID occupying a port on macOS.

Mac OS X

HOWTO: Kill PID occupying a port on macOS.

lsof -t -i tcp:<port-number> | xargs kill

Example

@jaytaylor
jaytaylor / LXC-LXD-2.x-curl-API.md
Created March 4, 2018 22:56
HOWTO: Curl the LXD unix.socket file.

It is possible to use curl to query the LXD unix.socket directly:

curl --unix-socket /var/lib/lxd/unix.socket http:/1.0/containers | jq .

Example output:

{
@jaytaylor
jaytaylor / LXC_LXD_2.x_mount_errors.md
Last active February 24, 2018 02:04
LXC / LXD 2.0 Mount Permission Denied Errors

LXC / LXD 2.0 Mount Errors

2018-02-23

Symptom

root@ip-1-2-3-4:~# lxc list
cannot perform operation: mount /var/lib/snapd/hostfs/var/lib/lxd /var/lib/lxd -o nosuid,nodev,noexec,rbind,rslave: Permission denied
@jaytaylor
jaytaylor / k8s-gigawatt-messed-up-subnetting-networking-workaround.md
Last active February 24, 2018 00:27
Kubernetes kubeadm-setup.sh: Workaround for Gigawatt's crazy DC networking..

Initial symptoms

Kubernetes master setup went fine, but when I tried to join a kbminion slave node:

Checking whether docker can run container ...
Checking iptables default rule ...
@jaytaylor
jaytaylor / zfs-on-oracle-linux-7.md
Last active April 6, 2022 06:18 — forked from RulerOf/zfs-on-oracle-linux-7.md
Installing ZFS on Linux on Oracle Linux 7

Installing ZFS on Linux on Oracle Linux 7

We're going to add ZFS support to our Oracle Linux installation. We'll just add the ZFS on Linux Repo, verify the binary signature from GitHub, install the files, ensure the driver loads properly, and verify that it's functional. We'll save things like array creation for another document.

This is mostly a transcription of the process from the CentOS/RHEL ZoL installation manual.

Install the repo file

Add the ZFSonLinux repo and verify the fingerprint.

Note — manual fingerprint verification is atypical but we'll do it anyway just for kicks.

@jaytaylor
jaytaylor / log4j2.properties
Created January 26, 2018 23:36
Elasticsearch log4j2.properties file for hybrid console + disk-based logging, with rotation and expiration.
status = error
dest = err
name = PopertiesConfig
property.logDir = /var/log/elasticsearch
appender.console.type = Console
appender.console.name = STDOUT
appender.console.layout.type = PatternLayout
appender.console.layout.pattern = [%d{ISO8601}][%-5p][%-25c{1.}] %marker%m%n