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Details

https://github.com/coreos/coreos-kubernetes/blob/master/Documentation/kubernetes-networking.md

Summary

*Master node(s):*
TCP 6443* Kubernetes API Server

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1. Initializes cluster master node:

 kubeadm init --apiserver-advertise-address $(hostname -i)

2. Initialize cluster networking:

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#!/bin/bash
# Usage: $0 myuser


k_user=${1}
#...

# 1. Step one: This new User generate a private key 

openssl genrsa -out ${k_user}.pem 2048

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brew install nginx

# Docroot is: /usr/local/var/www

# The default port has been set in /usr/local/etc/nginx/nginx.conf to 8080 so that
# nginx can run without sudo.

# nginx will load all files in /usr/local/etc/nginx/servers/.

# To have launchd start nginx now and restart at login:

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Configuration

Put the file alongside the ansible.cfg (root project)

Usage

invenotry example

192.168.11.23 ansible_host=mynode.example.com

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# https://superuser.com/a/802544/217352

# http://mywiki.wooledge.org/BashFAQ/050#I_only_want_to_pass_options_if_the_runtime_data_needs_them

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#!/bin/bash

yum install -y java-1.8.0-openjdk-devel
yum install -y wget
wget -O /etc/yum.repos.d/jenkins.repo https://pkg.jenkins.io/redhat/jenkins.repo
rpm --import https://pkg.jenkins.io/redhat/jenkins.io.key
yum install -y jenkins
systemctl enable jenkins
systemctl start jenkins

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To provide software in the form of Docker Images, it requires a build system and an infrastructure that creates the images as part of a Continuous Integration and, if necessary, stores them in a Docker Registry. For open source projects there are offers in the cloud, from Travis CI to build on Dockerhub itself. For in-house development, the infrastructure for the build is often called Jenkins, and with good reason. To install a Jenkins - whether for the whole company, the team or locally for testing - there are many ways.

An installation of operating system packages or ZIP archives is one possibility, but leaves many things open (eg the Java version) and may depend on the operating system. Obviously - and also very trendy - is starting Jenkins itself as a Docker container. Starting Jenkins in a container is easy. It is possible to run Docker in a container, but it does not matter which way it is connected to some configuration.

jenkins_in_docker_for_docker Jenkins in the container accesses the Docker Execut

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kubectl get po --all-namespaces --field-selector 'status.phase==Failed' -o json | kubectl delete -f -

kubectl get po --all-namespaces --field-selector 'status.phase==Evicted' -o json | kubectl delete -f -

kubectl get po --all-namespaces --field-selector 'status.phase==Pending' -o json | kubectl delete -f -

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cat <<EOF | kubectl  apply -f -   
apiVersion: extensions/v1beta1
kind: DaemonSet
metadata:
  name: disk-checker
  labels:
    tier: monitoring
    app: disk-checker
    version: v1
spec: