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Docker Network (VM)

Configure Docker daemon

 sudo cat << EOF > /etc/docker/daemon.json
{
  "bip": "192.168.100.1/24",
  "mtu": 1500,
 "default-address-pools":[

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# Author: Eric Pruitt (http://www.codevat.com)
# License: 2-Clause BSD (http://opensource.org/licenses/BSD-2-Clause)
# Description: This Makefile is designed to create a statically linked nginx
#       binary without any dependencies on the host system's version of glibc.

NGINX_VERSION=1.15.0
OPENSSL_VERSION=1.0.2o
PCRE_VERSION=8.42
ZLIB_VERSION=1.2.11

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## Do this on each swarm-node
# store containers attached to the bridge
gwbridge_users=$(docker network inspect --format '{{range $key, $val := .Containers}} {{$key}}{{end}}' docker_gwbridge | xargs -d' ' -I {} -n1 docker ps --format {{.Names}} -f id={})

# stop all containers
# if you have stacks that restart automatically, remove them via docker stack <stackName> rm
echo "$gwbridge_users" | xargs docker stop
docker network rm docker_gwbridge
docker network disconnect -f docker_gwbridge ingress
docker network rm docker_gwbridge

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CmdUtils.CreateCommand({
  name: "lmgtfy",
  synonyms: ["letmegooglethatforyou"],
  takes: {"words to google": noun_arb_text},
  icon: "http://letmegooglethatforyou.com/favicon.ico",
  description: "Replaces the selected words with a <a href=\"http://www.tinyurl.com\">TinyUrl</a> of the <a href=\"\">Let Me Google That For You</a> link",
  preview: function( pblock, urlToShorten ){
    pblock.innerHTML = "Replaces the selected URL with a tiny LMGTFY url.";
    var baseUrl = "http://tinyurl.com/api-create.php?url=http://letmegooglethatforyou.com/?q=";
    pblock.innerHTML = "Replaces the selected URL with ",

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version: '3.8'

services:
  
  # Database - Mongo DB
  mongo:
    image: mongo
    environment:
      MONGO_INITDB_ROOT_USERNAME: helpdev
      MONGO_INITDB_ROOT_PASSWORD: 123456

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One liner for deleting images from a v2 docker registry

Just plug in your own values for registry and repo/image name.

registry='localhost:5000'
name='my-image'
curl -v -sSL -X DELETE "http://${registry}/v2/${name}/manifests/$(
    curl -sSL -I \
        -H "Accept: application/vnd.docker.distribution.manifest.v2+json" \

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# These examples assume you have a container currently running.

# 1 Pipe from a file
sudo docker exec --interactive CONTAINER_NAME /bin/bash < the_beginning.sh | tee the_beginning_output.txt`

#2a Pipe by piping
echo "echo This is how we pipe to docker exec" | sudo docker exec --interactive CONTAINER_NAME /bin/bash - 

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The following documents a trial of using etcd, and confd to automatically configure a haproxy load balancer.

It is built using a combination of blogs, resources and experimentation, but provides a rough template of the approach that would allow a fully featured balancer to be configured from etcd keyvalues.

TODO

• Include systemd sidekick unit to automatically register the key's into ETCD based on a docker service (for example) being started
• A more complete haproxy template that builds a valid, complex haproxy that would be capable of dealing with Future PLC's balancer requirements

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# -*- coding: utf-8 -*-
import socket
import os

print("Connecting...")
if os.path.exists("/tmp/python_unix_sockets_example"):
    client = socket.socket(socket.AF_UNIX, socket.SOCK_DGRAM)
    client.connect("/tmp/python_unix_sockets_example")
    print("Ready.")
    print("Ctrl-C to quit.")

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#!/bin/bash
### BEGIN INIT INFO
# Provides: zram
# Required-Start:
# Required-Stop:
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: Virtual Swap Compressed in RAM
# Description: Virtual Swap Compressed in RAM
### END INIT INFO