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CloudFoundryin1Box之Lattice使用介紹-創(chuàng)新互聯(lián)

本文在介紹關(guān)于CloudFoundry in 1 Box的基礎(chǔ)上,重點(diǎn)探討了Lattice的使用具體步驟,步驟簡(jiǎn)單易上手操作,文章內(nèi)容步步緊湊,希望大家根據(jù)這篇文章可以有所收獲。

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1. Lattice簡(jiǎn)介

Lattice是一個(gè)很有意思的項(xiàng)目,設(shè)計(jì)目標(biāo)是為Cloud Foundry的開發(fā)人員提供一個(gè)最小的App運(yùn)行時(shí)環(huán)境,所以它只選擇了Cloud Foundry中與App運(yùn)行相關(guān)的組件,從而組成了一個(gè)最簡(jiǎn)化的開發(fā)測(cè)試Cloud Foundry App的環(huán)境。

CloudFoundry in 1 Box之Lattice使用介紹

如上圖所示,Lattice僅包含如下組件

  • Router:負(fù)責(zé)訪問App請(qǐng)求的routing

  • Diego:Cloud Foundry App的運(yùn)行時(shí)環(huán)境

  • Blob store: App staging的存儲(chǔ)空間

  • loggregator:log服務(wù)器,供app開發(fā)者查看app運(yùn)行時(shí)日志

下面我們就來一步一步搭建一個(gè)Lattice環(huán)境

2. 環(huán)境準(zhǔn)備

筆者采用的事Cent OS 7.2作為宿主機(jī)的操作系統(tǒng),VirtualBox為虛擬機(jī)平臺(tái)

2.1 安裝以來的軟件包

# rpm -Uvh http://mirror.pnl.gov/epel/7/x86_64/e/epel-release-7-5.noarch.rpm # yum install -y vim git screen kernel* libX11 qt SDL SDL-devel libxml2-devel \                libvpx libpng libXt libXmu libxslt libxslt-devel openssl \                 openssl-devel libXcursor libXinerama qt qt-devel wget gcc unzip ntpdate net-tools

2.2 安裝Ruby環(huán)境

筆者使用rbenv來安裝和管理ruby

# git clone git://github.com/sstephenson/rbenv.git $HOME/.rbenv # git clone https://github.com/sstephenson/ruby-build.git $HOME/.rbenv/plugins/ruby-build  # echo 'export PATH="$HOME/.rbenv/bin:$PATH"' >> ~/.bash_profile  # echo 'eval "$(rbenv init -)"' >> ~/.bash_profile  # source ~/.bash_profile  # rbenv install 2.3.0  # rbenv global 2.1.3 # gem install bundle # gem install nokogiri — --use-system-libraries

2.3安裝Vagrant

# wget https://releases.hashicorp.com/vagrant/1.8.1/vagrant_1.8.1_x86_64.rpm # rpm -Uvh vagrant_1.8.1_x86_64.rpm

驗(yàn)證vagrant

# vagrant --version Vagrant 1.8.1

2.4 安裝VirtualBox

# wget http://download.virtualbox.org/virtualbox/5.0.16/VirtualBox-5.0-5.0.16_105871_el7-1.x86_64.rpm # #安裝virtualbox時(shí)需要linux kernel的源代碼,設(shè)置KERN_DIR環(huán)境變量指示kernel源代碼路徑 # export KERN_DIR=/usr/src/kernels/<your kernel dir> # rpm -Uvh VirtualBox-5.0-5.0.16_105871_el7-1.x86_64.rpm

驗(yàn)證virtualbox是否安裝成功

# VBoxManage --version 5.0.16r105871

3. 部署Lattice

3.1 從github上下載最新的lattice release

# wget https://github.com/cloudfoundry-incubator/lattice-release/releases/latest

3.2 解壓Lattice

#  gunzip lattice-bundle-<version>.zip

3.3 啟動(dòng)Lattice

# cd <lattice>/vagrant # vagrant up --provider=virtualbox

3.4 查看PCF-dev component

# cd <lattice>/vagrant # vagrant ssh ##登陸pcf-dev虛擬機(jī) # 登陸之后的pcf-dev虛擬機(jī) $ sudo -i # monit summary root@agent-id-pcfdev-0:~# monit summary The Monit daemon 5.2.4 uptime: 17m Process 'auctioneer'                running Process 'receptor'                  running Process 'bbs'                       running Process 'converger'                 running Process 'file_server'               running Process 'route_emitter'             running Process 'ssh_proxy'                 running Process 'rep'                       running Process 'rootfses'                  running Process 'garden'                    running File 'haproxy_config'               accessible Process 'haproxy'                   running Process 'router_configurer'         running Process 'tcp_emitter'               running Process 'routing-api'               running Process 'consul_agent'              running Process 'doppler'                   running Process 'gorouter'                  running Process 'loggregator_trafficcontroller' running Process 'metron_agent'              running Process 'nats'                      running Process 'route_registrar'           running Process 'etcd'                      running System 'system_lattice-colocated-0' running

啟動(dòng)后的Lattice虛擬機(jī)配置了兩塊網(wǎng)卡,一塊用來連接CloudFoundry網(wǎng)絡(luò),使用10.0.2.15/24;一塊用來和宿主機(jī)通信,使用IP 192.168.11.11. Lattice默認(rèn)的域名為local.lattice.cf

如果設(shè)有http/https proxy,需要執(zhí)行如下步驟

export no_proxy=192.168.11.11,local.lattice.cf

至此,Lattice環(huán)境準(zhǔn)備完畢。

4. 部署app到Lattice

4.1 安裝Lattice CLI

# curl -O http://receptor.local.lattice.cf/v1/sync/linux/ltc # chmod +x ltc

4.2 Lattice target

Lattice默認(rèn)的域名為local.lattice.cf, *.local.lattice.cf會(huì)被解析到192.168.11.11

# ping xyz.local.lattice.cf PING xyz.local.pcfdev.io (192.168.11.11) 56(84) bytes of data. 64 bytes from 192.168.11.11: icmp_seq=1 ttl=64 time=0.818 ms 64 bytes from 192.168.11.11: icmp_seq=2 ttl=64 time=1.45 ms 64 bytes from 192.168.11.11: icmp_seq=3 ttl=64 time=1.33 ms 64 bytes from 192.168.11.11: icmp_seq=4 ttl=64 time=1.69 ms 64 bytes from 192.168.11.11: icmp_seq=5 ttl=64 time=1.25 ms ^C --- xyz.local.pcfdev.io ping statistics --- 5 packets transmitted, 5 received, 0% packet loss, time 4006ms rtt min/avg/max/mdev = 0.818/1.311/1.696/0.292 ms# lattice target local.pcfdev.io API location set.

4.3 部署App

因?yàn)閘attice環(huán)境僅包含運(yùn)行Cloud Foundry App的最小環(huán)境,不包含任何buildpack,所以使用Lattice運(yùn)行Cloud Foundry App需要兩個(gè)步驟

  1. build Cloud Foundry droplet,在這個(gè)步驟中,需要顯示指定buildpack,以ruby app為例

# ltc build-droplet helloruby https://github.com/cloudfoundry/ruby-buildpack Uploading application bits... Uploaded. Submitted build of helloruby 04/20 22:30:00.57 [BUILD|0] Successfully created container 04/20 22:30:06.20 [DROPLET|0] Deleted http://local.lattice.cf:8444/blobs/helloruby-bits.zip. 04/20 22:30:06.22 [DROPLET|0] Exit status 0 04/20 22:30:06.39 [BUILD|0] Exit status 0 04/20 22:30:27.50 [BUILD|0] -------> Buildpack version 1.6.16 04/20 22:30:27.68 [BUILD|0]        Downloaded [https://pivotal-buildpacks.s3.amazonaws.com/ruby/binaries/shared/bundler-1.11.2.tgz] 04/20 22:30:31.68 [BUILD|0] -----> Compiling Ruby/Rack 04/20 22:30:32.38 [BUILD|0]        Downloaded [https://pivotal-buildpacks.s3.amazonaws.com/concourse-binaries/ruby/ruby-2.3.0-linux-x64.tgz] 04/20 22:31:07.03 [BUILD|0] -----> Using Ruby version: ruby-2.3.0 04/20 22:31:07.48 [BUILD|0] ###### WARNING: 04/20 22:31:07.48 [BUILD|0]        remove the `.bundle/` folder from your repo and add it to your `.gitignore` file. 04/20 22:31:07.48 [BUILD|0]        You have the `.bundle/config` file checked into your repository 04/20 22:31:07.48 [BUILD|0]        https://devcenter.heroku.com/articles/bundler-configuration 04/20 22:31:07.48 [BUILD|0]        It contains local state like the location of the installed bundle 04/20 22:31:07.48 [BUILD|0]        as well as configured git local gems, and other settings that should 04/20 22:31:07.48 [BUILD|0] -----> Installing dependencies using bundler 1.11.2 04/20 22:31:07.48 [BUILD|0]        not be shared between multiple checkouts of a single repo. Please 04/20 22:31:08.27 [BUILD|0]        Downloaded [https://pivotal-buildpacks.s3.amazonaws.com/ruby/binaries/cflinuxfs2/libyaml-0.1.6.tgz] 04/20 22:31:11.03 [BUILD|0]        Running: bundle install --without development:test --path vendor/bundle --binstubs vendor/bundle/bin -j4 --deployment 04/20 22:31:14.33 [BUILD|0]        Fetching gem metadata from https://ruby.taobao.org/.... 04/20 22:31:14.63 [BUILD|0]        Fetching version metadata from https://ruby.taobao.org/.. 04/20 22:31:15.49 [BUILD|0]        Installing kgio 2.9.2 with native extensions 04/20 22:31:15.63 [BUILD|0]        Installing rake 10.4.2 04/20 22:31:15.82 [BUILD|0]        Installing rack 1.6.0 04/20 22:31:17.23 [BUILD|0]        Installing raindrops 0.13.0 with native extensions 04/20 22:31:17.40 [BUILD|0]        Installing rdiscount 2.1.7.1 with native extensions 04/20 22:31:54.47 [BUILD|0]        Installing tilt 1.4.1 04/20 22:31:54.77 [BUILD|0]        Using bundler 1.11.2 04/20 22:31:55.19 [BUILD|0]        Installing rack-protection 1.5.3 04/20 22:31:56.16 [BUILD|0]        Installing sinatra 1.4.5 04/20 22:32:38.00 [BUILD|0]        Bundle complete! 7 Gemfile dependencies, 10 gems now installed. 04/20 22:32:38.00 [BUILD|0]        Gems in the groups development and test were not installed. 04/20 22:32:38.00 [BUILD|0]        Bundled gems are installed into ./vendor/bundle. 04/20 22:32:38.04 [BUILD|0]        Bundle completed (87.00s) 04/20 22:32:38.06 [BUILD|0]        Cleaning up the bundler cache. 04/20 22:32:40.00 [BUILD|0] -----> Writing config/database.yml to read from DATABASE_URL 04/20 22:32:41.31 [BUILD|0] ###### WARNING: 04/20 22:32:41.31 [BUILD|0]        You have the `.bundle/config` file checked into your repository 04/20 22:32:41.31 [BUILD|0]        It contains local state like the location of the installed bundle 04/20 22:32:41.31 [BUILD|0]        as well as configured git local gems, and other settings that should 04/20 22:32:41.31 [BUILD|0]        not be shared between multiple checkouts of a single repo. Please 04/20 22:32:41.31 [BUILD|0]        remove the `.bundle/` folder from your repo and add it to your `.gitignore` file. 04/20 22:32:41.31 [BUILD|0]        https://devcenter.heroku.com/articles/bundler-configuration 04/20 22:32:58.50 [BUILD|0] Exit status 0 04/20 22:32:59.45 [DROPLET|0] Uploaded /tmp/droplet to http://local.lattice.cf:8444/blobs/helloruby-droplet.tgz. 04/20 22:32:59.49 [DROPLET|0] Exit status 0 # tc list-droplets Droplet        Created At        Size helloruby    04/20 14:32:59.00    20.3M

2. 啟動(dòng)droplet

# ltc launch-droplet helloruby helloruby No port specified. Defaulting to 8080. Creating App: helloruby .04/20 22:37:00.15 [APP|0] Creating container .04/20 22:37:01.77 [APP|0] Successfully created container ..............04/20 22:37:16.10 [HEALTH|0] healthcheck failed 04/20 22:37:16.14 [HEALTH|0] Exit status 1 04/20 22:37:16.56 [SSH|0] {"timestamp":"1461163036.562246799","source":"sshd","message":"sshd.started","log_level":1,"data":{}} 04/20 22:37:16.81 [HEALTH|0] healthcheck failed 04/20 22:37:16.83 [HEALTH|0] Exit status 1 .04/20 22:37:17.54 [HEALTH|0] healthcheck failed 04/20 22:37:17.57 [HEALTH|0] Exit status 1 .04/20 22:37:18.04 [APP|0] I, [2016-04-20T14:37:18.041860 #10]  INFO -- : Refreshing Gem list 04/20 22:37:18.26 [APP|0] I, [2016-04-20T14:37:18.253960 #10]  INFO -- : listening on addr=0.0.0.0:8080 fd=9 04/20 22:37:18.27 [APP|0] I, [2016-04-20T14:37:18.266758 #10]  INFO -- : master process ready 04/20 22:37:18.27 [HEALTH|0] healthcheck passed 04/20 22:37:18.31 [APP|0] I, [2016-04-20T14:37:18.280764 #43]  INFO -- : worker=0 ready 04/20 22:37:18.32 [APP|0] I, [2016-04-20T14:37:18.284959 #49]  INFO -- : worker=2 ready 04/20 22:37:18.33 [APP|0] I, [2016-04-20T14:37:18.305195 #46]  INFO -- : worker=1 ready 04/20 22:37:18.35 [HEALTH|0] Exit status 0 helloruby is now running. App is reachable at: http://helloruby.local.lattice.cf http://helloruby-8080.local.lattice.cf

上文描述的就是Lattice使用和部署的詳細(xì)內(nèi)容,具體使用情況還需要大家自己動(dòng)手實(shí)驗(yàn)使用過才能領(lǐng)會(huì)。如果想了解更多相關(guān)內(nèi)容,歡迎關(guān)注創(chuàng)新互聯(lián)行業(yè)資訊頻道!

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文章名稱:CloudFoundryin1Box之Lattice使用介紹-創(chuàng)新互聯(lián)
本文來源:http://m.newbst.com/article42/dcdchc.html

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