mcastelino

Trying Kata Containers with Firecracker (and QEMU)

Clearlinux bundles Kata Containers as well a firecracker.

To quickly experience how Kata Containers can be used to setup a cluster that can run Kubernetes with different types of isolation mechanisms we have created a simple developer enviornment. With this you can run workloads with runc (using cgroups, namespaces provided by the host kernel for isolation), Kata with QEMU/KVM (uses VT-x for isolation and QEMU as the hypervisor) and Kata with Firecracker (uses VT-x for isolation and the minimal Firecracker VMM).

hakib

class TimeLimitedPaginator(Paginator):
    """
    Paginator that enforced a timeout on the count operation.
    When the timeout is reached a "fake" large value is returned instead,

    Why does this hack exist? On every admin list view, Django issues a
    COUNT on the full queryset. There is no simple workaround. On big tables,
    this COUNT is extremely slow and makes things unbearable. This solution
    is what we came up with.
    """

Speedy1991

What is this gist?

Explanation of a fullstack deployment of wagtail in a dockerized environment with Nginx, Elasticsearch, Postgres and Memcached

Required Skills:

• docker
• docker-compose
• get a local wagtail site running

wallyqs

import asyncio
import json
import logging
import signal
import aiohttp
import platform

from aiohttp import web
from datetime import datetime
from nats.aio.client import Client as NATS

jdoss

[Path]
PathChanged=/etc/systemd/network/wg0.network
PathChanged=/etc/systemd/network/wg0.netdev

[Install]
WantedBy=multi-user.target

andrewstuart

image: docker.mydomain.com/build/kube-go-make

variables:
  DOCKER_TAG: docker.mydomain.com/myapp/home:$CI_COMMIT_REF_SLUG
  DOCKER_HOST: tcp://localhost:2375
  DOCKER_DRIVER: overlay
  PROD_RSYNC_HOST: myprodserver.com
  DOMAIN: mydomain.com
  CHART_DIR: chart

insom

#!/bin/bash
modprobe ipv6
modprobe udp_tunnel
modprobe ip6_udp_tunnel
ip link add dev wg0 type wireguard
wg setconf wg0 /etc/wireguard/config
wg showconf wg0
brctl addbr internet
brctl stp internet on
ip link set up dev wg0

ruanbekker

Docs - LXD Helpful Docs:
https://www.stgraber.org/2016/03/30/lxd-2-0-image-management-512/
https://www.flockport.com/flockport-first-look-at-lxd/
http://insights.ubuntu.com/2016/03/14/the-lxd-2-0-story-prologue/

Docs - Installation:
http://insights.ubuntu.com/2016/03/14/the-lxd-2-0-story-prologue/

Docs - API:
https://linuxcontainers.org/lxd/getting-started-cli/

JPvRiel

References:

• Ubuntu Community Wiki - PinningHowto
• Debian Wiki - AptPreferences

Overview

Priority values

From man page: man apt_preferences

andrewchilds

# Clubhouse / git / deploy utility functions
#
# API docs: https://clubhouse.io/api
#
# Assuming the following:
# 1. We have a range of git commits that represent the changes being deployed
# 2. Our git branches and pull requests use the username/ch123/story-name format,
#    so that "ch123" ends up in a commit message
# 3. We have a Clubhouse API token set to the $CLUBHOUSE_API_TOKEN environment variable
#