NetDevOps. Building New Culture around Infrastructure as Code and Automation. Tom Davies Sr. Manager,

Transcription

1 NetDevOps Building New Culture around Infrastructure as Code and Automation Tom Davies Sr. Manager,

2 Agenda The Dark Arts of Network Operations Making Change Easy: Configuration, Automation, Monitoring Fostering NetDevOps Culture What it takes to be a NetDevOps Engineer!

3 The Dark Art of Network Operations

4 Today s reality Functional but considered fragile Network configuration more art than science Tribal knowledge of key engineers

5 Every time we implement a network change something goes wrong Isn t it great, our switch hasn t been rebooted in 6 years We can t update/change the network, our business won t allow it * Paraphrased quotes from actual network operators

6 Network Operations Culture and Mindset Today Changes happen rarely Change seen as failure Organizations Today have a Culture of Fear Changes are big and complicated Problem occurs during change The team isn't well practiced. Change seen as high risk

7 Sequential and Manual Slow Infrastructure Provisioning

8 System Variation Snowflakes

9 Organic Configuration Unique Infrastructure Configuration

10 NetDevOps: Making Change Easy Inserting the Dev into Network Ops

11 Configuration, Automation & Monitoring: Principles Adopt Network as Code and Configuration Management strategies Implement a Continuous Development approach to network changes. Monitoring is about continuous health and improvement, not forensics. Never Copy-Paste Configuration Again!

12 Moving Toward Network as Code Store Network Configurations in Source Control Source Control is the Single Source of Truth Deploy Configurations with Programmatic APIs

13 Continuous Delivery Pipeline For Network Configuration Network Configuration stored in Source Control Changes are proposed in code branches CICD Build Servers deploy and test proposed configurations Successful configurations automatically deployed to Production

14 Networking Monitoring for NetDevOps Modern data analytics tools Single data feed point from network Query Engine Visualization Platform Learning and Analytics Scalable Storage Platform Action and Response New streaming telemetry protocols and standards Data Ingest and Processing Real-time data Actionable monitoring

15 The NetDevOps Tooling Stack Distributed Source Control Build Server Configuration Management Network Test Tooling Telemetry & Monitoring CLI NETCONF RESTCONF grpc SNMP Configuration Data YANG Data Model Network Device Operational Data Network Virtualization Platforms Development Environment Test Environment Production Environment

16 Fostering NetDevOps Culture

17 What is the DevOps Culture? Embrace failure Change is good Active collaboration Empowered accountability Feedback systems Automation

18 Consider the Network Stakeholders Network Builders Traditional networking teams Design, Build, and Maintain the Network Responsible for Care and Feeding Network Consumers The users of the network Looking to consume network services The network is a utility It should just work

19 The NetDevOps Culture and Mindset Changes happen rarely Changes are regular activities Change seen as failure Organizations Today have a Culture of Fear Changes are big and complicated Change seen as success NetDevOps will require a Culture of Change Each change is small Problem occurs during change The team isn't well practiced. Change was uneventful The team is well practiced Change seen as high risk Change was tested and verified

20 Why change?

21 Sequential and Manual Quickly Provision Infrastructure

22 Parallel and Automated Quickly Provision Infrastructure

23 System Variation No More Snowflakes

24 System Consistency No More Snowflakes

25 Organic Configuration Version Controlled Infrastructure

26 Infrastructure as Code Version Controlled Infrastructure

27 What it takes to be a NetDevOps Engineer!

28 Yesterday s Network Engineer Network Skills Spanning-Tree Routing Protocols QoS Programming Skills TCL EEM Expect Scripts VPN Design VOIP Fibre Channel Security Policy MPLS

29 The NetDevOps Engineer Network Skills Layer 2 & 3 Fundamentals Quality of Service Security and Segmentation Linux Networking Container Networking Cloud Networking IOT Networking Model Driven Programmability Network Function Virtualization Platform Skills Linux Administration Container Fundamentals Micro Service Platforms Cloud Fundamentals Programming Skills Data Formats (ex: JSON/YAML) Python and APIs (ex: REST) Source Control (ex: git) Configuration Management (ex: Ansible)

30 Need Help?

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32 Got more questions? Stay in touch! Tom facebook.com/ciscodevnet/

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