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Slides from my All Day DevOps 2022 presentation entitled - Codified Manifestation of an Agile Release Train Enabling CI/CD for Highly Regulated Environments

ADDO_2022_CICID_Tom_Halpin.pdf

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TRACK: CI/CD CONTINUOUS EVERYTHING
NOVEMBER 10, 2022
Tom Halpin, Distinguished Engineer
Codified Manifestation of an
Agile Release Train - Enabling
CI/CD for Highly Regulated
Environments
TRACK: CI/CD CONTINUOUS EVERYTHING
Introduction
TRACK: CI/CD CONTINUOUS EVERYTHING
Tom Halpin
 Enablement - Distinguished Engineer working in a
DevOps enablement role.
 Coaching -Teams to transform how they work to a DevOps
model in support of product-aligned value streams.
 Facilitating - Scaled adaption of the associated culture,
practices, and tools across organizations.
 Third time presenting at ADDO highly recommend the
experience.
TRACK: CI/CD CONTINUOUS EVERYTHING
DevOps
An Imperfect Search for Perfection
TRACK: CI/CD CONTINUOUS EVERYTHING
• Three Ways – A Principle-based DevOps Framework
• First Way
• Principles of flow - work always flows in one direction – downstream.
• Second Way
• Principles of feedback - create, shorten and amplify feedback loops.
• Third Way
• Principles of continuous learning - continued experimentation, learn from
mistakes, and achieve mastery.
The Phoenix Project - Gene Kim, Kevin Behr, George Spafford
DevOps - Underlying Principles
TRACK: CI/CD CONTINUOUS EVERYTHING
You build it, you run it
"Giving developers operational responsibilities has greatly enhanced the quality of the
services, both from a customer and a technology point of view.
The traditional model is that you take your software to the wall that separates
development and operations and throw it over and then forget about it.
Not at Amazon. You build it, you run it. This brings developers into contact with the day-
to-day operation of their software. It also brings them into day-to-day contact with the
customer.
This customer feedback loop is essential for improving the quality of the service.“
Amazon CTO Werner Vogels - 2006 Interview
DevOps - Definition of Awesome
Ad

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ADDO_2022_CICID_Tom_Halpin.pdf

  • 1. TRACK: CI/CD CONTINUOUS EVERYTHING NOVEMBER 10, 2022 Tom Halpin, Distinguished Engineer Codified Manifestation of an Agile Release Train - Enabling CI/CD for Highly Regulated Environments
  • 2. TRACK: CI/CD CONTINUOUS EVERYTHING Introduction
  • 3. TRACK: CI/CD CONTINUOUS EVERYTHING Tom Halpin  Enablement - Distinguished Engineer working in a DevOps enablement role.  Coaching -Teams to transform how they work to a DevOps model in support of product-aligned value streams.  Facilitating - Scaled adaption of the associated culture, practices, and tools across organizations.  Third time presenting at ADDO highly recommend the experience.
  • 4. TRACK: CI/CD CONTINUOUS EVERYTHING DevOps An Imperfect Search for Perfection
  • 5. TRACK: CI/CD CONTINUOUS EVERYTHING • Three Ways – A Principle-based DevOps Framework • First Way • Principles of flow - work always flows in one direction – downstream. • Second Way • Principles of feedback - create, shorten and amplify feedback loops. • Third Way • Principles of continuous learning - continued experimentation, learn from mistakes, and achieve mastery. The Phoenix Project - Gene Kim, Kevin Behr, George Spafford DevOps - Underlying Principles
  • 6. TRACK: CI/CD CONTINUOUS EVERYTHING You build it, you run it "Giving developers operational responsibilities has greatly enhanced the quality of the services, both from a customer and a technology point of view. The traditional model is that you take your software to the wall that separates development and operations and throw it over and then forget about it. Not at Amazon. You build it, you run it. This brings developers into contact with the day- to-day operation of their software. It also brings them into day-to-day contact with the customer. This customer feedback loop is essential for improving the quality of the service.“ Amazon CTO Werner Vogels - 2006 Interview DevOps - Definition of Awesome
  • 7. TRACK: CI/CD CONTINUOUS EVERYTHING Dev-HRE-Ops Dev – Highly Regulated Environment - Ops
  • 8. TRACK: CI/CD CONTINUOUS EVERYTHING “Highly Regulated / Restricted Environment (HRE) - a physical or digital environment characterized by: air-gapped physical spaces, air-gapped computer systems, heightened access controls, segregation of duties, inability to discuss certain topics outside of specific physical spaces, and an inability to transport certain artifacts off premise.” DEVOPS BLOG - Jose Morales Highly Regulated Environment (HRE) - Definition
  • 9. TRACK: CI/CD CONTINUOUS EVERYTHING • Processes tightly controlled. • You build it, you run it remains the objective but is not always possible. • Regulatory environment drives both business investment and technical choices. • Security controls and governance processes mandated by regulatory environment. • Segregation of duties often a requirement. • Deploying changes more frequently often viewed as a risk to security and governance controls. • Application architecture can drive Dev-HRE-Ops outcomes. Dev-HRE-Ops - Implications
  • 10. TRACK: CI/CD CONTINUOUS EVERYTHING • Common misconception arises that HRE means you cannot “do” DevOps. • Dev-"HRE"-Ops is possible and desirable in support of HRE mandated processes. • Enablement of operation & support teams key to success in the last mile. • Cultural challenge as much as a technical challenge. • Important to include all stake-holders: squad members, operators, auditors, regulators & change control in Dev-HRE-Ops enablement efforts. Dev-HRE-Ops - Enabling
  • 11. TRACK: CI/CD CONTINUOUS EVERYTHING • Last mile challenges • Product development squads not allowed access to production systems. • Air-gapped server rooms & computer systems. • Restrictions can include • In region or in country personnel required. • Security clearance required. • Screen sharing prohibited. • Log sharing prohibited. • Access via secure devices. • Limited access to network services and associated resources. Dev-HRE-Ops - Last Mile Challenges
  • 12. TRACK: CI/CD CONTINUOUS EVERYTHING • Application architecture - microservices, loosely coupled, APIs etc. • Automate E2E value streams – using CI & CD codified pipelines • Have an everything as code mindset • PRs, CI/CD, Test Automation, Security Controls, Issues, Documentation, Infrastructure & Change Controls. • Codify compliance, access and regulatory requirements. • Make use of the available tools • Source Code Management - GitHub, GitLab, BitBucket etc. • Agile - Jira, Trello etc. • Orchestration - Jenkins, CircleCI, Travis CI, Cloud Native etc. • Binary Repositories - Artifactory, Nexus, Docker Registries etc. Dev-HRE-Ops - Approach
  • 13. TRACK: CI/CD CONTINUOUS EVERYTHING Dev-HRE-Ops - Enablement Application Architecture
  • 14. TRACK: CI/CD CONTINUOUS EVERYTHING • Application architecture has evolved over the past decade led by tech companies such as Meta, Netflix, AWS & others. • Increased demands on responsiveness, scalability & resilience drove a move to Cloud Native applications underpinned by DevOps methodologies & tools. • Applications developed were typically for green field environments, however majority of HRE applications are in brown field environments. • DevOps methodologies & tools can still be used to gain efficiencies when developing for HRE environments. Application Architecture - Evolution
  • 15. TRACK: CI/CD CONTINUOUS EVERYTHING "A microservice architecture – is an architectural pattern that arranges an application as a collection of loosely-coupled, fine-grained services, communicating through lightweight protocols." - Wikipedia Application Architecture - Microservices
  • 16. TRACK: CI/CD CONTINUOUS EVERYTHING Microservices typically  are run in dedicated processes.  can communicate via API over standard industry protocols.  address specific business capabilities.  are independently buildable.  are independently deployable typically using containers.  allow the choice of programming language and the choice of storage medium based on capabilities of squad and/or requirements of the business. Application Architecture - Microservices
  • 17. TRACK: CI/CD CONTINUOUS EVERYTHING Microservices Benefits  Scalability.  Resiliency.  Development Velocity.  Continuous Delivery / Deployment. Application Architecture - Microservices
  • 18. TRACK: CI/CD CONTINUOUS EVERYTHING • Great example of a Lambda Dance at scale. • Lambdas are used to build a landing page tailored to each and every customer upon authentication. Microservice Scaling - AWS Homepage
  • 19. TRACK: CI/CD CONTINUOUS EVERYTHING Dev-HRE-Ops - Enablement Pipelines As Code
  • 20. TRACK: CI/CD CONTINUOUS EVERYTHING  How do we build for and deploy to very complex environments with many moving parts?  CI/CD Pipelines allow squads to integrate & deliver code which implements business features as they are developed • CI - Continuous Integration • CD - Continuous Deployment / Continuous Delivery  Pipelines furthermore can be • Implemented as code. • Stored in the application source code management repository. • Developed using the squads preferred development tools & methodologies. Pipelines as Code
  • 21. TRACK: CI/CD CONTINUOUS EVERYTHING Pipelines as Code
  • 22. TRACK: CI/CD CONTINUOUS EVERYTHING  Development squad using an Agile backlog • All code in a centralized source code management system. • Build quality in to applications via high degree of automated testing. • Work in small batches using short lived (one to several days) feature branches when developing a capability or fixing a bug. • Continuously submit changes to main branch via Pull Requests (PRs). • Every code commit automatically triggers CI pipeline which builds the code, runs automated unit tests, code quality checks & static application security tests etc. • Pipeline run results (pass/fail) results are directly available from the PR providing timely and accurate feedback to the squad. Pipelines as Code - Continuous Integration
  • 23. TRACK: CI/CD CONTINUOUS EVERYTHING • Person reviewing the PR will not merge the request to master if any of the checks or tests ran from the CI pipeline fail. • When a pull request is merged to the main branch the pipeline can – Build a binary artifact. – Deploy the artifact to a binary package repository, a docker registry or even to a pre-production staging server. – Run additional test cycles. Pipelines as Code - Continuous Integration
  • 24. TRACK: CI/CD CONTINUOUS EVERYTHING • Continuous Deployment is where every change merged to master following the successful execution of a CI pipeline results in the build, test and deployment of a binary package to production. • This is not acceptable in the majority of HRE environments, where unplanned changes are not allowed. • HRE environments typically prefer a more predictable release cycle, ideally with the release change logs available for inspection and approval in advance. Pipelines as Code - Continuous Deployment
  • 25. TRACK: CI/CD CONTINUOUS EVERYTHING  Similar to Continuous Deployment but where a release to production requires a business decision and human intervention • Approvals can be managed via PRs created in an agreed repository.  Continuous Delivery is both aligned with the deployment requirements for HRE environments and the 3 ways of DevOps • Errors detected early in the pipelines. • Packages only built when pipelines succeed. • Always have a package ready for production. • Change control and release controls codified. • Culture of experimentation fostered. • Feedback acted upon via the squad's Agile backlog. Pipelines as Code - Continuous Delivery
  • 26. TRACK: CI/CD CONTINUOUS EVERYTHING Dev-HRE-Ops - Enablement Scaling - Codified Release Train
  • 27. TRACK: CI/CD CONTINUOUS EVERYTHING  Pipeline as code approach scales well for HRE environments.  Multiple squads working in an Agile manner on different capabilities.  Feedback used to drive innovation & to build the functionality the business requires. Scaling Pipelines as Code - Release Train
  • 28. TRACK: CI/CD CONTINUOUS EVERYTHING Scaling Pipelines as Code - Release Train
  • 29. TRACK: CI/CD CONTINUOUS EVERYTHING Conclusions
  • 30. TRACK: CI/CD CONTINUOUS EVERYTHING • Dev-"HRE"-Ops is both possible and desirable. • Last mile poses challenges to DevOps definition of awesome. • Operational & support team enablement essential to success. • Cultural challenge as much as a technical challenge. • Everything as code mindset important • Make use of the available tools. • Pipelines as code automate delivery end to end. • Codify compliance and regulatory requirements. • Scalable to the Release Train level. Dev-HRE-Ops - Conclusions
  • 31. TRACK: CI/CD CONTINUOUS EVERYTHING • Key takeaway - it’s a journey - an imperfect search for perfection. This is the "3" ways. Dev-HRE-Ops - Conclusions
  • 32. TRACK: CI/CD CONTINUOUS EVERYTHING Q&A That’s All Folks