swarm集羣搭建

swarm集羣搭建

一鍵搭建請參考：https://github.com/shenshouer/swarm-cluster

環境準備

• coreos alpha 928.0.0
• vagrant
• virtualbox

配置

synced_folders.yaml:

- name: default
   source: .
   destination: /vagrant
   nfs: true
   mount_options: 'nolock,vers=3,udp,noatime'
   disabled: false

Vagrantfile:

require 'fileutils'
require 'yaml'

# Size of the cluster created by Vagrant
num_instances=4

# Read YAML file with mountpoint details
MOUNT_POINTS = YAML::load_file('synced_folders.yaml')

module OS
  def OS.windows?
    (/cygwin|mswin|mingw|bccwin|wince|emx/ =~ RUBY_PLATFORM) != nil
  end

  def OS.mac?
   (/darwin/ =~ RUBY_PLATFORM) != nil
  end

  def OS.unix?
    !OS.windows?
  end

  def OS.linux?
    OS.unix? and not OS.mac?
  end
end

# Change basename of the VM
instance_name_prefix="swarm"

Vagrant.configure("2") do |config|
  # always use Vagrants insecure key
  config.ssh.insert_key = false

  config.vm.box = "coreos-alpha"

  config.vm.provider :virtualbox do |v|
    # On VirtualBox, we don't have guest additions or a functional vboxsf
    # in CoreOS, so tell Vagrant that so it can be smarter.
    v.check_guest_additions = false
    v.memory = 2048
    v.cpus = 2
    v.functional_vboxsf     = false
  end

  # Set up each box
  (1..num_instances).each do |i|
    vm_name = "%s-%02d" % [instance_name_prefix, i]
    config.vm.define vm_name do |host|
      host.vm.hostname = vm_name
    host.vm.synced_folder ".", "/vagrant", disabled: true
    begin
      MOUNT_POINTS.each do |mount|
        mount_options = ""
        disabled = false
        nfs =  true
        if mount['mount_options']
        mount_options = mount['mount_options']
        end
        if mount['disabled']
        disabled = mount['disabled']
        end
        if mount['nfs']
        nfs = mount['nfs']
        end
        if File.exist?(File.expand_path("#{mount['source']}"))
        if mount['destination']
          host.vm.synced_folder "#{mount['source']}", "#{mount['destination']}",
            id: "#{mount['name']}",
            disabled: disabled,
            mount_options: ["#{mount_options}"],
            nfs: nfs
        end
        end
      end
    rescue
    end
      ip = "172.18.19.#{i+100}"
      host.vm.network :private_network, ip: ip

      host.vm.provision :shell, :inline => "/usr/bin/timedatectl set-timezone Asia/Shanghai ", :privileged => true
      host.vm.provision :docker, images: ["swarm:latest"]
      sedInplaceArg = OS.mac? ? " ''" : ""
    end
  end
end

創建swarm集羣

---

• swarm-01 172.18.19.101 as swarm master && consul
• swarm-02 172.18.19.102 as swarm master
• swarm-03 172.18.19.103 swarm node
• swarm-04 172.18.19.104 swarm node

設置服務發現後臺

docker run -d -p 8500:8500 --name=consul progrium/consul -server -bootstrap

創建swarm高可用集羣

# 在swarm-01節點
# docker run -d -p 4000:4000 swarm manage -H :4000 --replication --advertise <manager0_ip>:4000  consul://<consul_ip> 如：

docker run -d -p 4000:4000 swarm manage -H :4000 --replication --advertise 172.18.19.101:4000  consul://172.18.19.101:8500

# 在swarm-02節點
docker run -d -p 4000:4000 swarm manage -H :4000 --replication --advertise 172.18.19.102:4000  consul://172.18.19.101:8500

# 在swarm-03節點
docker run -d swarm join --advertise=172.18.19.103:2375 consul://172.18.19.101:8500

# 在swarm-04節點
docker run -d swarm join --advertise=172.18.19.104:2375 consul://172.18.19.101:8500