yuuichi-fujioka

sudo apt-get install qemu-utils
sudo modprobe nbd

sudo qemu-nbd --connect=/dev/nbd0 /full/path/to/qcow2/image/file

sudo mkdir /mnt/ubuntu

sudo mount /dev/nbd0p1 /mnt/ubuntu

mikelehen

/**
 * Fancy ID generator that creates 20-character string identifiers with the following properties:
 *
 * 1. They're based on timestamp so that they sort *after* any existing ids.
 * 2. They contain 72-bits of random data after the timestamp so that IDs won't collide with other clients' IDs.
 * 3. They sort *lexicographically* (so the timestamp is converted to characters that will sort properly).
 * 4. They're monotonically increasing.  Even if you generate more than one in the same timestamp, the
 *    latter ones will sort after the former ones.  We do this by using the previous random bits
 *    but "incrementing" them by 1 (only in the case of a timestamp collision).
 */

oneohthree

echo "$STRING" | iconv -t ascii//TRANSLIT | sed -r s/[^a-zA-Z0-9]+/-/g | sed -r s/^-+\|-+$//g | tr A-Z a-z

the2hill

#!/bin/bash
# This is meant to be executed from packer

if [ -z "$PACKER_BUILD_NAME" ] && [ -z "$PACKER_BUILDER_TYPE" ]; then
    echo "Do not run by hand, this is run by packer"
    exit 1
fi

export DEBIAN_FRONTEND=noninteractive

low-ghost

"""Creates a python socket client that will interact with javascript."""
import socket

socket_path = '/tmp/node-python-sock'
# connect to the unix local socket with a stream type
client = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
client.connect(socket_path)
# send an initial message (as bytes)
client.send(b'python connected')
# start a loop

harshavardhana

How to configure static website using Nginx with MinIO ?

1. Install nginx

2. Install minio

3. Install mc client

4. Create a bucket:

$ mc mb myminio/static
Bucket created successfully ‘myminio/static’.

tanaikech

Downloading Shared Files on Google Drive Using Curl

When the shared files on Google Drive is downloaded, it is necessary to change the download method by the file size. The boundary of file size when the method is changed is about 40MB.

File size < 40MB

CURL

filename="### filename ###"
fileid="### file ID ###"
curl -L -o ${filename} "https://drive.google.com/uc?export=download&id=${fileid}"

cheethoe

# This will use osd.5 as an example
# ceph commands are expected to be run in the rook-toolbox
1) disk fails
2) remove disk from node
3) mark out osd. `ceph osd out osd.5`
4) remove from crush map. `ceph osd crush remove osd.5`
5) delete caps. `ceph auth del osd.5`
6) remove osd. `ceph osd rm osd.5`
7) delete the deployment `kubectl delete deployment -n rook-ceph rook-ceph-osd-id-5`
8) delete osd data dir on node `rm -rf /var/lib/rook/osd5`

StephenSorriaux

Installing Kubernetes on ArchLinux

Packages

pacman -S curl docker ebtables ethtool wget unzip

Also cfssl is needed but available on AUR, using pacaur

pacaur -S cfssl

yellowcrescent

Notes on setting up a Kubernetes cluster on CoreOS (stable) with DigitalOcean's platform.

Partially stolen from this guide by kevashcraft

Spin up VMs

• Spin up 4 VMs with CoreOS Stable. One will be the master, the other 3 will be workers
• Tag them with k8s:master and k8s:worker respectively, along with a tag for the cluster
• Droplets can be created via your DO control panel, or by using doctl. Just change the CLUSTER_NAME, CLUSTER_DOMAIN, and SSHKEY_ID values below to match your own, then save the file to cluster_create.sh, chmod +x cluster_create.sh, then run it ./cluster_create.sh. If you don't already have doctl setup, it will probably be easier to just do this from the DO control panel if you only need to do a one-time setup for development.