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Netdevops Developer Environments with Vagrant Do It Like They Do on the Developer Channel! Stuart Clark Netdevops Evangelist DEVNET-1365

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Netdevops Developer Environments with Vagrant Do It Like They Do on the Developer Channel! Stuart Clark Netdevops Evangelist DEVNET-1365 #CLUS NetDevOps Developer Environments with Vagrant Do it like they do on the Developer Channel! Stuart Clark NetDevOps Evangelist DEVNET-1365 #CLUS Agenda • Vagrant 101 • Our first network vagrant up! • Vagrant + Ansible Provisioning • Multi-Node Topologies • The right tool for the right job… • How to do it yourself! DEVNET-1365 © 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public 3 Cisco Webex Teams Questions? Use Cisco Webex Teams (formerly Cisco Spark) to chat with the speaker after the session How 1 Find this session in the Cisco Events App 2 Click “Join the Discussion” 3 Install Webex Teams or go directly to the team space 4 Enter messages/questions in the team space Webex Teams will be moderated cs.co/ciscolivebot#DEVNET-1365 by the speaker until June 18, 2018. #CLUS © 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public 44 Preparation Steps to Follow Along (or after) Workstation Requirements • Python Windows Workstation Caveats • 2.7.10 or higher • Vagrant & VirtualBox work great • 3.6.2 or higher • Ansible not supported on Windows (control station) • pip & virtual environment • Python scripts to create Vagrant boxes • ”git” command line tools require Linux or OS X • Vagrant • VirtualBox • Homebrew (Apple OS X) #CLUS DEVNET-1365 © 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public 6 Setup your Workstation • Clone the Repository • Setup Python Virtual Environment • Get Vagrant Box # From your “code” directory $ https://github.com/CiscoDevNet/learning_lab_vagrant_netprog_code $ cd learning_lab_vagrant_netprog_code $ ls –l README.md lab01 lab02 lab03 $ virtualenv venv --python=python3.6 $ source venv/bin/activate $ pip install –r lab03/requirements.txt #CLUS DEVNET-1365 © 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public 7 Vagrant 101 Development Environments Made Easy • Open Source Develop Tooling by lab\ $ vagrant init nxos/7.0.3.I7.3 lab\ $ vagrant up HashiCorp Bringing machine 'default' up with 'virtualbox' www.vagrantup.com provider... ==> default: Importing box ‘nxos/7.0.3.I7.3'... ==> default: Forwarding ports... • Simple configuration file stored default: 830 (guest) => 2223 (host) with code default: 80 (guest) => 2224 (host) default: 443 (guest) => 2225 (host) • “easy to configure, reproducible, default: 22 (guest) => 2222 (host) and portable work environments” lab\ $ vagrant ssh Nexus9000v# • Multi-Platform for both guest and host #CLUS DEVNET-1365 © 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public 9 Key Terms and Concepts • Vagrantfile (venv) lab\ $ ls lab02/ Vagrantfile • Configuration file for vagrant (venv) lab\ $ vagrant box list • centos/7 (virtualbox, 1611.01) Box iosxe/16.06.02 (virtualbox, 0) • Base images for different iosxr/6.1.2 (virtualbox, 0) nxos/7.0.3.I7.3 (virtualbox, 0) individual environments ubuntu/trusty64 (virtualbox, 20160323.0.0) • Provider (venv) lab\ $ vagrant box add nxos/7.0.3.I7.3 n9000v.box • Virtualization technology (venv) lab\ $ vagrant global-status used by vagrant id name provider state directory ------------------------------------------------------- • Default is VirtualBox, many 8d1eaec default virtualbox saved ~/coding/BRKDEV-1368 other supported #CLUS DEVNET-1365 © 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public 10 Vagrant Commands • vagrant init box name • vagrant provision • Initialize a new Vagrantfile in a • Re-run configured provisioner (eg Ansible) directory • vagrant box list • vagrant up / halt / destroy • Display list of available boxes • Start, stop, and delete an environment • vagrant status / global-status • Display current status of environments • Vagrant suspend / resume lab\ $ vagrant suspend • Pause and restart an environment ==> default: Saving VM state and suspending • vagrant ssh [machine] lab\ $ vagrant resume ==> default: Resuming suspended VM... • Connect via SSH to a running environment lab\ $ vagrant port 830 (guest) => 2223 (host) • vagrant port 22 (guest) => 2222 (host) • View the nat’d ports for the lab\ $ vagrant ssh environment Nexus9000v# #CLUS DEVNET-1365 © 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public 11 Explore Vagrant with Basic Linux VMs • Create new project directory lab\ $ mkdir vagrant_explore lab\ $ cd vagrant_explore • Initialize a new Vagrant environment vagrant_explore\ $ vagrant init hashicorp/precise64 • Bring it up vagrant_explore\ $ vagrant up #CLUS DEVNET-1365 © 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public 12 Explore Vagrant with Basic Linux VMs • Connect to your environment vagrant_explore\ $ vagrant ssh with SSH # Now you’re inside the Vagrant VM • vagrant@precise64:~$ Explore lifecycle operations of vagrant@precise64:~$ pwd Vagrant vagrant@precise64:~$ exit # Back on your local workstation vagrant_explore\ $ vagrant status vagrant_explore\ $ vagrant suspend vagrant_explore\ $ vagrant resume vagrant_explore\ $ vagrant reload vagrant_explore\ $ vagrant destroy #CLUS DEVNET-1365 © 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public 13 Vagrantfile Basics # -*- mode: ruby -*- # vi: set ft=ruby : Vagrant is a Ruby application # All Vagrant configuration is done below. The "2" in Vagrant.configure # configures the configuration version (we support older styles for Majority of default # backwards compatibility). Please don't change it unless you know what Vagrantfile is comments # you're doing. Vagrant.configure("2") do |config| Start Configuration Block # Every Vagrant development environment requires a box. # You can search for boxes at https://vagrantcloud.com/search. config.vm.box = "hashicorp/precise64" Identify the box to use end End Configuration Block Note: Vagrant Boxes can include default settings* Partial* fileSimplified output displayed and editedfor presentation sample #CLUS DEVNET-1365 © 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public 14 Our first network vagrant up! Initialize your Vagrantfile lab\ $ cd lab01/ • View available boxes hands_on_1\ $ vagrant box list • Initialize new Vagrant File hands_on_1\ $ vagrant box add nxos/7.0.3.I7.3 ~/Downloads/nxosv-final.7.0.3.I7.3.box –force hands_on_1\ $ vagrant init nxos/7.0.3.I7.3 hands_on_1\ $ open Vagrantfile #CLUS DEVNET-1365 © 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public 16 Vagrantfile Basics (for Network Devices) # -*- mode: ruby -*- # vi: set ft=ruby : Vagrant.configure("2") do |config| # Every Vagrant development environment requires a box. You can search for Box Name # boxes at https://atlas.hashicorp.com/search. config.vm.box = ”nxos/7.0.3.I7.3" config.ssh.insert_key = false Don’t insert Vagrant public key. Recommended # Create a forwarded port mapping which allows access to a specific port # within the machine from a port on the host machine. config.vm.network "forwarded_port", guest: 830, host: 2223, id: "netconf" Forward local ports for config.vm.network "forwarded_port", guest: 80, host: 2224, id: ”http" API/App access. config.vm.network "forwarded_port", guest: 443, host: 2225, id: "restconf-ssl" SSH is forwarded by default # Create a private network, which allows host-only access to the machine # using a specific IP. config.vm.network :private_network, virtualbox__intnet: "link1", auto_config: false Create environment config.vm.network :private_network, virtualbox__intnet: "link2", auto_config: false networks. end ”eth1” connected to host by default Note: Vagrant Boxes can include default settings * Simplified and edited sample #CLUS DEVNET-1365 © 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public 17 Let’s add more interfaces and open up API Access • Open Vagrantfile • Add port forwarding • Add 2 Interfaces to Configuration • Specific positioning in file is irrelevant * Simplified and edited sample • * Must be within |config| block Vagrant.configure("2") do |config| config.vm.box = "nxos/7.0.3.I7.3" # Forward API Port config.vm.network :forwarded_port, guest: 80, host: 2224, id: 'http' # Create a private networks config.vm.network :private_network, virtualbox__intnet: "link1", auto_config: false config.vm.network :private_network, virtualbox__intnet: "link2", auto_config: false end or cp Vagrantfile.solution Vagrantfile #CLUS DEVNET-1365 © 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public 18 Start a Vagrant Environment lab01\ $ vagrant up • Start environment # Known ssh bug • View NAT’d ports for APIs # vagrant up 2nd time lab01\ $ vagrant up • Connect to running switch lab01\ $ vagrant port lab01\ $ vagrant ssh Note: Due to the nature of the Nexus 9000v shell, vagrant will report an error after starting the VM. This is expected, and does not indicate a problem. Simply enter vagrant up again to complete the setup successfully. #CLUS DEVNET-1365 © 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public 19 Explore the Vagrant Environment # Run from Vagrant Environment (ie vagrant ssh) • Baseline Configurations n9kv1# sh run | inc "username vagrant" • Logins – User / Cert Nexus9000v# sh run int mgmt0 • APIs Nexus9000v# sh run | inc feature • Interfaces Nexus900v# conf t • Open NX-API Developer Nexus9000v(config)# feature nxapi Sandbox # Exit from Vagrant Environment http://127.0.0.1:2224 • Make an API Call #CLUS DEVNET-1365 © 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public 20 Destroy Hands on Demo 1 lab01\ $ vagrant destroy • Destroy this environment #CLUS DEVNET-1365 © 2018 Cisco and/or its affiliates. All rights reserved. Cisco Public 21 Vagrant + Ansible Provisioning Come on..
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