首先

由于为了勉强学习，我一直在构建和破坏TungstenFabric，为了节省时间，我开始探索一次性搭建的方法。

在这篇文章中，我们参考了Openstack和TungstenFabric的官方建设指南。但是，我们也认为使用Kubernetes和TungstenFabric或helm也是可能的。※我们计划在下一篇文章中发布。

前提条件

请满足以下最低前提条件：
– RAM尽量多，本次大约使用13GB
– 硬盘至少50GB应该可以
– 我们使用的是MacOS作为操作系统，但是如果是Linux系列的，应该也没有问题
– 已经安装了最新的Vagrant和VirtualBox
– 当然要连接到互联网

我所使用的构建电脑如下：
· Macbook Pro（2017）13英寸内存16GB。

在我当前的环境中，只是勉强能够工作的感觉。
在这个步骤中，我只启动了必需的最少数量的docker容器。

Openstack和TungstenFabric(一体式)的建设

只需在以下文件中运行vagrant up。Vagrant会自动下载箱子文件。由于完成需要数十分钟，所以让我们放松一下眺望吧。
由于中途可能会发生超时，所以在这种情况下，请运行vagrant destroy，然后再次运行vagrant up。

Vagrant.configure("2") do |config|
  config.vm.box = "centos/7"
  config.vm.network "forwarded_port", guest: 80, host: 8080, host_ip: "127.0.0.1"
  config.vm.network "forwarded_port", guest: 8143, host: 8143, host_ip: "127.0.0.1"
  config.vm.define :node1 do |node|
    node.vm.hostname = "contrail"
    config.vm.provider "virtualbox" do |vb|
      vb.customize ["modifyvm", :id, "--memory", "13124", "--cpus", "2"]
    end
    config.vm.provision "shell", inline: <<-SHELL
      yum install git curl epel-release -y
      yum install ntp ansible-2.4.2.0 net-tools -y
      yum install python-pip -y
      pip install requests
      sudo mkdir -m 700 /root/.ssh
      sudo ssh-keygen -t rsa -N "" -f /root/.ssh/id_rsa
      sudo cat /root/.ssh/id_rsa.pub >> /root/.ssh/authorized_keys
      sudo cat /root/.ssh/id_rsa.pub >> /home/vagrant/.ssh/authorized_key
      row=`grep "ssh_connection" -n /etc/ansible/ansible.cfg | cut -d: -f1`
      sed -i "$row a ssh_args = -o ControlMaster=auto -o ControlPersist=60s -o StrictHostKeyChecking=no -o UserKnownHostsFile=\/dev\/null" /etc/ansible/ansible.cfg
      sudo git clone -b R5.0 http://github.com/Juniper/contrail-ansible-deployer
      sudo mv contrail-ansible-deployer /root
      sudo cat <<'EOF' > /root/contrail-ansible-deployer/config/instances.yaml
provider_config:
  bms:
    ssh_pwd: root
    ssh_user: root
    domainsuffix: local
instances:
  bms1:
    provider: bms
    ip: 10.0.2.15
    roles:
      config_database:
      config:
      control:
      analytics_database:
      analytics:
      webui:
      vrouter:
      openstack:
      openstack_compute:
contrail_configuration:
  RABBITMQ_NODE_PORT: 5673
  AUTH_MODE: keystone
  KEYSTONE_AUTH_URL_VERSION: /v3
  CONTRAIL_CONTAINER_TAG: r5.0.1
  OPENSTACK_VERSION: queens
kolla_config:
  kolla_globals:
    enable_haproxy: "no"
    enable_swift: "no"
    enable_ironic: "no"
  kolla_passwords:
    keystone_admin_password: contrail123
global_configuration:
  CONTAINER_REGISTRY: tungstenfabric
EOF
      sudo sed -i -e 's/PasswordAuthentication no/PasswordAuthentication yes/g' /etc/ssh/sshd_config
      systemctl restart sshd
      sleep 10
      cd /root/contrail-ansible-deployer;ansible-playbook -i inventory/ playbooks/configure_instances.yml -vvv
      sleep 10
      cd /root/contrail-ansible-deployer;ansible-playbook -i inventory/ playbooks/install_openstack.yml -vvv
      cd /root/contrail-ansible-deployer;ansible-playbook -i inventory/ playbooks/install_openstack.yml -vvv
      sleep 10
      for i in `docker ps | grep -e heat -e barbican | awk '{print $1}'`;do docker stop $i;done;
      cd /root/contrail-ansible-deployer;ansible-playbook -i inventory/ -e orchestrator=openstack playbooks/install_contrail.yml -vvv
      sleep 10
      sudo service ntpd start
      sleep 10
      yum install gcc python-level -y
      pip install python-openstackclient
      cp /etc/kolla/kolla-toolbox/admin-openrc.sh /root
      contrail-status
    SHELL
  end
end

执行“install_openstack.yml”Playbook两次是为了解决经常因超时而失败的问题。使用高规格的机器可能简单地解决这个问题。

[root@contrail ~]# contrail-status
~snip~
== Contrail control ==
control: active
nodemgr: active
named: active
dns: active

== Contrail config-database ==
nodemgr: initializing (Disk for DB is too low. )
zookeeper: active
rabbitmq: active
cassandra: active

== Contrail database ==
kafka: active
nodemgr: initializing (Disk for DB is too low. )
zookeeper: active
cassandra: active

== Contrail analytics ==
snmp-collector: active
query-engine: active
api: active
alarm-gen: active
nodemgr: active
collector: active
topology: active

== Contrail webui ==
web: active
job: active

== Contrail vrouter ==
nodemgr: active
agent: inactive

== Contrail config ==
svc-monitor: active
nodemgr: active
device-manager: active
api: active
schema: active

目前虽能运作，但因为要使用到极限的内存，所以非常的卡顿。因此，考虑以下方案：

Contrail Analytics的停止：停止Contrail Analytics

钨织布（Tungsten Fabric）的分析模块为实现网络可视化功能而消耗大量内存，如果面临内存不足问题，可以通过停止此模块使系统稳定。但需要注意的是，这样会导致web-ui的监控功能无法使用。停止方法有两种，一种是停止Docker容器，另一种是将其从Vagrant部署目标中移除。

停止Docker容器的模式

for i in `docker ps | grep -e analytics | awk '{print $1}'`;do docker stop $i;done;

将vagrant的部署目标排除的模式

请先将以下的Vagrantfile文件中的两行代码注释掉，然后执行vagrant up命令。

      #analytics_database:
      #analytics:

停下来的结果 de

当停止Docker容器模式时，请参考以下步骤：
停止analytics。

[root@contrail ~]# contrail-status
~snip~
== Contrail control ==
control: initializing (Collector connection down)
nodemgr: initializing (Collector connection down)
named: active
dns: active

== Contrail config-database ==
nodemgr: initializing (Disk for DB is too low. Collector connection down)
zookeeper: active
rabbitmq: active
cassandra: active

== Contrail database ==
kafka: inactive
nodemgr: inactive
zookeeper: inactive
cassandra: inactive

== Contrail analytics ==
snmp-collector: inactive
query-engine: inactive
api: inactive
alarm-gen: inactive
nodemgr: inactive
collector: inactive
topology: inactive

== Contrail webui ==
web: active
job: active

== Contrail vrouter ==
nodemgr: initializing (Collector connection down)
agent: active (Collector connection down)

== Contrail config ==
svc-monitor: initializing (Collector connection down)
nodemgr: initializing (Collector connection down)
device-manager: initializing (Collector connection down)
api: initializing (Collector connection down)
schema: initializing (Collector connection down)

[root@contrail ~]#

由于（收集器连接中断），这是因为停止了分析。这是预料之内的。

这样做会释放出相当大的内存空间。

[root@contrail ~]# free -h
              total        used        free      shared  buff/cache   available
Mem:            12G        7.0G        3.8G         13M        1.5G        5.0G
Swap:          2.0G        1.0M        2.0G
[root@contrail ~]#

以上