Zero-Touch Operations - Managing Your Network as Code

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2 BRKSDN-2644 Zero-Touch Operations - Managing Your Network as Code Xavier Mertens Global Systems Engineer - CGEM

3 Cisco Spark How Questions? Use Cisco Spark to communicate with the speaker after the session 1. Find this session in the Cisco Live Mobile App 2. Click Join the Discussion 3. Install Spark or go directly to the space 4. Enter messages/questions in the space cs.co/ciscolivebot#brksdn-2644

4 Agenda Introduction DevOps - the Story Concept of CI/CD Selected Components And Cisco DNA-Center? Conclusion

5 Belgium? Belgian Beer is clasified as Unesco world heritage The only country in the world with a beer pipeline Rich chocolate history known as Belgian chocolate Belgian Waffles anyone? Even in New York you find Belgian Style French Fries Hosting largest Airplane Fuel Storage in Europe (Ghent) CEPS (Central European Pipe System) pipeline system Belgium BRKSDN

6 Who is Xavier? Antwerp - Belgium Technology Science Nature

7 Who is Xavier? Networking Programmability Automation Assurance

8 Abstract Automating networking operations with infrastructure as code enables networking teams to adopt DevOps practices. You can propose high-level network-wide intent based changes, put them into version control, and subject them to peer review, testing and approval, before promoting these changes to production. Network changes are automatically halted and automatically rolled-back by the management infrastructure if your network displays unintended behavior. With Zero-Touch operations, continuous incremental evolution results in a more robust infrastructure rather than in-frequent large changes resulting in fewer network failures and freeing your operations teams from non-value added troubleshooting activities. BRKSDN

9 Demographics of this room 13% Network Engineers, Architects & IT Specialists Management, Business Development 17% 4% Operations 66% BRKSDN

10 DevOps The Story

11 Developers Writing code APIs Libraries (DLLs) Progressive Daily changes Let me try this :-) Operations Standards Stability MTTR Reach 5-nines Costs & Lost Prod. Please no Change

12 Confusion DevOps This is a cool new feature for the business let s get it out. Operations will not like it, they are so paranoid. Sigh, next change window is only in 3 months! Vlan 20 service-routing mdns-sd service-policy gui-permit-all IN service-policy gui-permit-all OUT redistribute mdns-sd Again a new feature? We are finally running stable. New config code and I bet I ll need a newer software too. Could I even take the risk? The business is working 24/7! Ellie from Development Jake from Operations BRKSDN

13 Collide or Co-exist?

14 General stages of DevOps Source Code Management Code Review Automated Testing Collaboration Release Configuration management

15 DevOps Find the compromise Tools & Culture are key Agile Tools Deliver faster Deliver More Frequently Remain accurate Test before you go Based On CALMS

16 DevOps & CALMS Culture Automation Lean Measurement Sharing

17 Culture Considerations This circle of trust is helping us forward like never before. We can circle from Devs to Ops and back! We find solutions. When it goes wrong we don t blame, we enhance! This ongoing documentation helps us further automate.

18 Balance the worlds with CI/CD A pipeline of trust, collaboration and balance BRKSDN

19 Concept of CI/CD

20 Definition Continuous Integration (CI) Software engineering approach Merging all developers copies into mainline Merge daily or even few times a day Source: BRKSDN

21 Definition of Continuous Delivery (CD) Software engineering approach Produce software in short cycles Reliably released at any time Aimed to reduce cost, time and risk Straight forward and repeatable Source: BRKSDN

22 DevOps Periodic Table Source: BRKSDN

23 CI/CD Pipeline Toolchain example Test Code/Commit CI/CD Build/ Notify Config Note: VIRL is a learning edtion. Cisco Modelling Labs (CML) is the corporate edition BRKSDN

24 Selection for this session Test Code/Commit CI/CD Build/ Notify Config Note: VIRL is a learning edtion. Cisco Modelling Labs (CML) is the corporate edition BRKSDN

25 Selected components

26 Jenkins

27 Jenkins Test Code/Commit CI/CD Build/ Config Notify BRKSDN

28 What is Jenkins </> L Build & Test Software/Code projects Continuous Integration Continuous Delivery Platform Large Plug-in Eco-System Integrates with Git, Github, VSTS, etc Large adoption within the software dev world BRKSDN

29 Jenkins First time login Create new pipelines Systems Settings & Plugins BRKSDN

30 Jenkins Setup your first pipeline task BRKSDN

31 Jenkins Setup your first pipeline task BRKSDN

32 Jenkins Setup your first pipeline task BRKSDN

33 Jenkins Setup your first pipeline task BRKSDN

34 Microsoft VSTS

35 Microsoft Visual Studio Team Services (2018) Test Code/Commit CI/CD Build/ Config Notify BRKSDN

36 Create a new repository for your CI/CD project BRKSDN

37 Service hooks can trigger external events BRKSDN

38 Create a service hook to Jenkins BRKSDN

39 Create a service hook to Jenkins Licensing: BRKSDN

40 Code editor

41 Popular Editors Insights based on 39,441 developers Source:

42 Visual Studio Code macos, Linux and Windows 100+ language support Syntax highlighting, auto-indentation, etc Free for private or corporate use License: BRKSDN

43 Visual Studio Code BRKSDN

44 Visual Studio Code connect your repository (git) Windows CTRL+Shift+P; MAC: + +P; Linux: CTRL+Shift+P BRKSDN

45 Visual Studio Code connect your repository (git) BRKSDN

46 Visual Studio Code connect your repository (git) BRKSDN

47 Visual Studio Code connect your repository (git) BRKSDN

48 Visual Studio Code Congratulations BRKSDN

49 Ansible

50 Ansible Test Code/Commit CI/CD Build/ Config Notify BRKSDN

51 What is Ansible IT Automation Decrease Mistakes Remove Repetitive Tasks Simple language for Playbooks Infrastructure - Networks - Cloud & more BRKSDN

52 Ansible Playbook language

53 Ansible uses YAML YAML Ain't Markup Language (YAML) BRKSDN

54 Ansible uses YAML Human-readable Data Serialization Language Higly Structured BRKSDN

55 Yaml Decalarations Lists Associative Arrays Name: This is my name - list item 1 - list item 2 - list item 3 - name: run some show ios command: commands: sh version commands: sh cdp Indentation is used to logically devide. Use paces No Tabs! BRKSDN

56 Playing with Ansible

57 Testing basic ansible First playbook (CLI) ver.yml run a show version agains some core switches (Nexus) coreswitches is a variable defined in an inventory file This will store the result into an output file BRKSDN

58 Testing basic ansible First playbook (CLI) How does an inventory file looks like? [...] demarks the variable set Each line below consits of a hostname or IP-address of the target host BRKSDN

59 Testing basic ansible First playbook (CLI) 1. inventory (file) 1. ver.yml (file) BRKSDN

60 Testing basic ansible First playbook (CLI) 3. Run from CLI 4. Ansible results log BRKSDN

61 Testing basic ansible First playbook (CLI) 5. Content in the output file BRKSDN

62 Testing basic ansible First playbook (CLI) What if I don t want a playbook to ask for any password? This could be useful when integrating with Jenkins Your infrastructure username/password can be integrated in your inventory file BRKSDN

63 VIRL (CML)

64 VIRL (CML) Test Code/Commit CI/CD Build/ Config Notify BRKSDN

65 What is VIRL (CML) A scalable virtualization software platform that enables teams to design, build, test, and deploy real-world simulations in a virtual environment Leverages real network OS (routers, switches, etc) Virtualizes Network Topologies Offers APIs to Start Simulations BRKSDN

66 CML Supported Platforms IOS IOS XR IOS XE ASA Nexus Other Containers LXC IPerf Ostinato Virtualized in IOSv and IOSv L2 Virtualized in XRv & XRv 9000 Same Control-plane code Same Management plane code Same memory footprint Virtualized CSR1000v Virtualized ASAv Virtualized NX-OS 9000v Server Ubuntu Different CPU performance Different Forwarding plane code No ASIC emulation Virtual images are a representation of the OS and not of the hardware platform BRKSDN

67 VIRL vs CML Cisco Modeling Labs Corporate Edition Virtual Internet Routing Lab Personal Edition User Corporate Individual Number of users Unlimited Single User Cisco Node Limit 300 per system 20 Technical Support Cisco TAC Community Call Home Required No Yes. Weekly Usage Tracking send to Cisco No Yes. Can be disabled. Source: BRKSDN

68 Collaboration ChatOps Notification

69 Spark & Tropo Test Code/Commit CI/CD Build/ Config Notify BRKSDN

70 The Solution Cisco Cloud Collaboration Developer Platforms Open APIs & SDKs to integrate, extend, and customize Spark experiences Tropo Platform Cisco Spark Platform Open APIs for embedding voice and SMS services to enhance business processes Complete collaboration solution Connect people, services and business processes like never before Modular building blocks BRKSDN

71 Complementary Developer Platforms Cisco Spark for Devs Tropo Platform Complete collaboration service Building better teams Subscription-based pricing for enterprise IT feature set Make Spark experiences even better API as the product telephony centric use cases Vertical business application focus Pay-as-you-go Add communications to apps and business processes BRKSDN

72 Integrations & Bots APIs & SDKs INTEGRATED 72

73 And Cisco DNA-Center?

74 DevOps Periodic Table Source: BRKSDN

75 Cisco DNA Center 121 En BI / Monitoring Config / Provisioning Logging Testing Enterprise En Dna DNA Center BRKSDN

76 IOS XE 16.x Enables Cisco Solutions 3 rd Party Integration DIY Solutions DNA Center Standards Based Interoperability Model Driven Programmability Custom Development Model Driven Telemetry Policy Automation Analytics SDN Controllers CI/CD Tools NMS Systems Zero Touch Provisioning App Hosting Guest Shell (On Box Python) Intent-based Network Infrastructure Intent-based Network Infrastructure Intent-based Network Infrastructure BRKSDN

77 Conclusion

78 Conclusion Culture Remove the Wall DevOps for Automation Start creating your own toolchain

79 Confusion And before we go Ellie from Development Jake from Operations BRKSDN

80 Cisco Spark How Questions? Use Cisco Spark to communicate with the speaker after the session 1. Find this session in the Cisco Live Mobile App 2. Click Join the Discussion 3. Install Spark or go directly to the space 4. Enter messages/questions in the space cs.co/ciscolivebot#brksdn-2644

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82 Continue Your Education Demos in the Cisco campus Walk-in Self-Paced Labs Tech Circle Meet the Engineer 1:1 meetings Related sessions BRKSDN

83 Thank you

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