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【kubernetes】ubuntu14.04 64位 搭建kubernetes过程

时间:2016-07-02 18:53:01      阅读:349      评论:0      收藏:0      [点我收藏+]

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背景:

Kubernetes介绍:http://kubernetes.io/docs/getting-started-guides/

github地址:https://github.com/kubernetes/kubernetes

在ubuntu上安装文档官方地址:http://kubernetes.io/docs/getting-started-guides/ubuntu/

 

环境:

  • Master:
    • Ubunut14.04
    • 192.168.27.135(NAT)         
  • Minion1:
    • Ubuntu14.04
    • 192.168.27.136(NAT) 
  • Minion2:
    • Ubuntu14.04
    • 192.168.27.137(NAT) 

 

准备工作:

需要在三个节点上安装docker和ssh,安装ssh:

$ sudo apt-get install openssh-server
$ sudo service ssh start

安装docker:

sudo apt-get install docker-engine

 

安装Kubernetes:

1、在Master上,首先创建一个工作目录,执行:

$ git clone https://github.com/kubernetes/kubernetes.git

 

2、下载完后,进入kubernetes目录,修改kubernetes/cluster/ubuntu/config-default.sh文件:

root@192.168.127.135 root@192.168.27.136 root@192.168.27.137

 

3、安装kubernetes:

$ cd  kubernetes/cluster
$ KUBERNETES_PROVIDER=ubuntu ./kube-up.sh

 

成功安装的截图如下:

技术分享

 

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访问页面:

技术分享

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遇到的各种坑:

1、重启master节点,如何恢复?

这个问题弄了我至少3小时才搞定,因为我是准备直接重新执行一遍上面步骤的第三步,也就是再执行一次kube-up.sh,然而我发现每次该脚本都会从github上下载etcd、flanneld和kubernetes包,这个包有1.4G大小,可想而知要耽误多少时间。然后我就只能慢慢找这段脚本在哪执行的,最后发现在kubernetes/cluster/ubuntu/下的download-release.sh,也就是下图中的文件。所以我就把文件的内容改了,改成下面代码中的样子,目的是不让它每次都下。随后呢,我的做法是把第一次成功安装的文件备份一下,也就是把kubernetes/cluster/ubuntu/binaries这个目录备份起来,然后直接拷到重启后的master的对应目录。然后再执行kube-up.sh,之后就OK啦!

技术分享

 

#!/bin/bash

# Copyright 2015 The Kubernetes Authors All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

# Download the etcd, flannel, and K8s binaries automatically and stored in binaries directory
# Run as root only

# author @resouer @WIZARD-CXY
set -e

#function cleanup {
  # cleanup work
  #rm -rf flannel* kubernetes* etcd* binaries
#}
#trap cleanup SIGHUP SIGINT SIGTERM

pushd $(dirname $0)
mkdir -p binaries/master
mkdir -p binaries/minion

# flannel
FLANNEL_VERSION=${FLANNEL_VERSION:-"0.5.5"}
echo "Prepare flannel ${FLANNEL_VERSION} release ..."
grep -q "^${FLANNEL_VERSION}\$" binaries/.flannel 2>/dev/null || {
#  curl -L  https://github.com/coreos/flannel/releases/download/v${FLANNEL_VERSION}/flannel-${FLANNEL_VERSION}-linux-amd64.tar.gz -o flannel.tar.gz
#  tar xzf flannel.tar.gz
#  cp flannel-${FLANNEL_VERSION}/flanneld binaries/master
 # cp flannel-${FLANNEL_VERSION}/flanneld binaries/minion
  echo ${FLANNEL_VERSION} > binaries/.flannel
}

# ectd
ETCD_VERSION=${ETCD_VERSION:-"2.3.1"}
ETCD="etcd-v${ETCD_VERSION}-linux-amd64"
echo "Prepare etcd ${ETCD_VERSION} release ..."
grep -q "^${ETCD_VERSION}\$" binaries/.etcd 2>/dev/null || {
#  curl -L https://github.com/coreos/etcd/releases/download/v${ETCD_VERSION}/${ETCD}.tar.gz -o etcd.tar.gz
#  tar xzf etcd.tar.gz
#  cp ${ETCD}/etcd ${ETCD}/etcdctl binaries/master
  echo ${ETCD_VERSION} > binaries/.etcd
}

function get_latest_version_number {
  local -r latest_url="https://storage.googleapis.com/kubernetes-release/release/stable.txt"
  if [[ $(which wget) ]]; then
    wget -qO- ${latest_url}
  elif [[ $(which curl) ]]; then
    curl -Ss ${latest_url}
  else
    echo "Couldn‘t find curl or wget.  Bailing out." >&2
    exit 4
  fi
}

KUBE_VERSION=$(get_latest_version_number | sed s/^v//)

# k8s
echo "Prepare kubernetes ${KUBE_VERSION} release ..."
grep -q "^${KUBE_VERSION}\$" binaries/.kubernetes 2>/dev/null || {
#  curl -L https://github.com/kubernetes/kubernetes/releases/download/v${KUBE_VERSION}/kubernetes.tar.gz -o kubernetes.tar.gz
#  tar xzf kubernetes.tar.gz
#  pushd kubernetes/server
#  tar xzf kubernetes-server-linux-amd64.tar.gz
#  popd
#  cp kubernetes/server/kubernetes/server/bin/kube-apiserver #     kubernetes/server/kubernetes/server/bin/kube-controller-manager #     kubernetes/server/kubernetes/server/bin/kube-scheduler binaries/master
#  cp kubernetes/server/kubernetes/server/bin/kubelet #     kubernetes/server/kubernetes/server/bin/kube-proxy binaries/minion
#  cp kubernetes/server/kubernetes/server/bin/kubectl binaries/
  echo ${KUBE_VERSION} > binaries/.kubernetes
}

#rm -rf flannel* kubernetes* etcd*

echo "Done! All your binaries locate in kubernetes/cluster/ubuntu/binaries directory"
popd

 

【kubernetes】ubuntu14.04 64位 搭建kubernetes过程

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原文地址:http://www.cnblogs.com/puyangsky/p/5635751.html

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