Viacheslav Vasilyev avoidik

Docker - How to cleanup (unused) resources

Once in a while, you may need to cleanup resources (containers, volumes, images, networks) ...

delete volumes

// see: https://github.com/chadoe/docker-cleanup-volumes

$ docker volume rm $(docker volume ls -qf dangling=true)

$ docker volume ls -qf dangling=true | xargs -r docker volume rm

Step By Step Guide to Configure a CoreOS Cluster From Scratch

This guide describes how to bootstrap new Production Core OS Cluster as High Availability Service in a 15 minutes with using etcd2, Fleet, Flannel, Confd, Nginx Balancer and Docker.

Content

Introduction
- Tools Used
Basic Configuration

Step By Step Guide To Setup CI/CD With Docker Registry

Step-by-Step Guide how to install CI/CD with Docker Registry On Ubuntu 14.04 LTS from scratch.

Install Docker using Official Manual or just run:

sudo bash
apt-get update
apt-key adv --keyserver hkp://p80.pool.sks-keyservers.net:80 --recv-keys 58118E89F3A912897C070ADBF76221572C52609D

	- !policy
	id: conjur/authn-k8s/minikube/default
	owner: !group /k8s_admin
	body:
	- !webservice
	annotations:
	kubernetes/namespace: default

	- !host client

	Execute the following command and make a note of X-Auth-Token. You will need this token to use in all subsequent commands.

	curl -v -H 'X-Storage-User: system:root' -H 'X-Storage-Pass: testpass' http://10.80.83.68:8077/auth/v1.0
	In the following command examples we are using 'AUTH_tk65840af9f6f74d1aaefac978cb8f0899' as the X-Auth-Token. Replace this with the appropriate token you obtained in the above step.

	To create a container:

	curl -X PUT -H 'X-Auth-Token: AUTH_tk65840af9f6f74d1aaefac978cb8f0899' http://10.80.83.68:8077/v1/AUTH_system/mycontainer
	To list all containers in current account:

	# Reuse an existing ssh-agent on login, or create a new one. Append this to your .bashrc
	# I have no idea who the author of the original concept was for reusing agents. This
	# version also handles the case where the agent exists but has no keys.

	GOT_AGENT=0

	for FILE in $(find /tmp/ssh-* -type s -user ${LOGNAME} -name "agent.[0-9]*" 2>/dev/null)
	do
	SOCK_PID=${FILE##*.}

	# Create Virtual env for Kubespray and make it active
	virtualenv --system-site-packages kubespray_virtenv
	source kubespray_virtenv/bin/activate

	# Install Ansible and Kubespray to virtualenv
	pip install kubespray

	# Create kubespray config file
	cat > ~/.kubespray.yml << EOF
	kubespray_git_repo: "https://github.com/kubespray/kubespray.git"

	#!/bin/bash
	# Setup CentOS 7 host as AMI

	# Update base OS update, and install EPEL repo and Python Pip
	sudo yum -y update
	sudo yum –y install epel-release
	sudo yum -y install python-pip

	# Install Python add-ons:
	sudo pip install pystache

	#!/usr/bin/env python

	import getpass
	import json
	import requests
	import sys
	import urllib

	import boto3

	#!/bin/bash
	#
	# vault-ec2-auth.sh
	# Authenticates an EC2 instance to Hashicorp Vault
	#

	# configuration stored in environment variables in /etc/vault/client.conf
	# expected configuration (defaults are selected below if none is specified):
	# VAULT_ADDR = url of vault server
	# VAULT_ROLE = role name to authenticate as