2
Why DevOps?
• Cool new Applications are delayed because they don’t run in our production environments
• Outages due to Dev / Ops communication problems
• Releases fail due to environmental differences
3
DevOps Is NOT
• Giving the developers the root password
• A job title (ok, it is, but that doesn’t make sense)
• Asking Developers to be sys-admins or sys-admins to be developers
• A formalized process like ITIL or Scrum. Nor is it incompatible with those processes
4
DevOps is a philosophy
• Agile & Lean applied to the whole software delivery chain, not just developers– BizDevQaSecReleaseOps
• Driven by efficiency and consistency– Building applications– Building environments– Configuring applications and environments
• Optimizing software delivery end-to-end
5
DevOps needs People, Process and Tools
• People– Changes in behavior– Potential for new roles
• Process– Tweak SDLC processes for more responsiveness– Regular refinement
• Tools– Chain of complementary tools – Supporting people and process
6
Agenda: Process, People, Tools
• Process• People• Tools
7
Agenda: Process, People, Tools
• Process• People• Tools
8
Start updating Process: The Goal
• Goal: Unify the software delivery process across the SDLC– Reduce duplication of effort– Improve consistency– Embrace change– Remove known sources of error
9
Start Updating Process: Form a Team
• Establish a team that improves process
• Members:– Stakeholders across the SDLC• Devs, QA, Release, Ops, Security…
– More hands-on people than managers
10
Start Updating Process: Form a Team
• The team should meet:– Regularly (perhaps inline with Dev’s Sprints)– For post-mortem’s of outages and good releases
• Refining the Process– Start from current process– Respond with real change to real failures• “We should be more careful” doesn’t count
11
Start Updating Process: Ex. Refinements
• Because errors creep into the official builds…– Unify the CI and official builds and test nightly
• Because a new app wasn’t compatible with the live environment…– Involve sys-admins in early design phases– Setup test envs that more closely match Live
• Deployments failed due to manual error– Increase automation in deployment
12
Agenda: Process, People, Tools
• Process• People• Tools
13
People: Living DevOps
• Break down the Dev / Ops wall– Different roles are ok
• Involve members of “the other side” in your decisions.
• When in doubt, get a mediator
14
People: As Developers…
• Inform Ops early of new applications and other changes coming down the pipeline
• Include health and status monitoring in the app
• Consider involving Ops in early architecture meetings. They’ll ask:– So… how are you going to back that up?– What security protocols are we using?– Will it run in the cluster?
15
People: As Operations…
• Share network diagrams with interested developers.
• Support Dev and QA with “cheap” and disposable test environments
• Collaborate with QA to implement smoke testing for all environments
16
People: Facilitators
• Consider Dev / Ops facilitators
• Especially helpful if:– Cultural momentum seems insurmountable– Dev and Ops groups are geographically distant– Each party is attempting to use “DevOps” to
bludgeon the other into submission
17
People: Facilitators – Release Management
• Release Management– May already own the end-to-end process
• “System” knowledge is distributed and Release Managers are often already the hub– Distributed development– Offshore development– Outsource development– Outsourced IT operations
18
People: Facilitators – Env. Management
• Environment Management– Emerging group. Owns what goes into
environments and their configuration changes.
• Well positioned to maintain environment consistency and integrity.
19
People: Facilitators – Delivery Architect
• Chairs SDLC process group
• Strong technical skills– Understands writing, running, tuning and
monitoring complex apps
• Strong people skills– Has to bring many people together– Needs to be great at asking questions
20
Agenda: Process, People, Tools
• Process• People• Tools
“Man is a tool-using animal. Without tools he is nothing, with tools he is all” – Thomas Carlyle
21
Start updating Tools:
• Tools should support people and process across the SDLC– There is no single “DevOps” tool– Build a coherent tools chain– Tools should be reusable across silos
22
Start updating Tools: Types of Tools
• “How do we get our software from source code to a deployable package?”– Motivated by the need for an authoritative,
traceable deployable
• Build Systems: – Perform CI for developer feedback and official
builds for release. – CI build is the Official build– Store build output in an artifact repository
23
Start updating Tools: Types of Tools ctd.
• “How do we get a deployable package on to an environment?”– Motivated by high deployment effort and/or high
deployment risk
• Application Release Automation / Deployment– Replace manual steps and cobbled scripts– Consistent deployment process across
environments– Consider release management aspects like
approvals to match raw automation
24
Start updating Tools: Types of Tools ctd.
• “How do we create environments?” – Motivated by dev / prod environment variances– Need for frequent new test environments
• Virtualization and Environment Provisioning– Public / Private “clouds”– Installing and configuring middleware
25
Start updating Tools: Types of Tools ctd
• “How do we know it works?”
• Automated tests suites speed testing as changes are brought to production quickly
• Smoke tests can be incorporated in automated deployments to detect failures
26
Start updating Tools: Forming a Tool Chain
• Integrations– Direct integrations are the easiest links
• APIs– An API of some sort allows you to create an integration with current (and future) tools
• Conventions– Short of an integration, common conventions provide
an interface for adjacent tools
27
Summary
• The Dev / Ops gap is a sign of a broken system– The business wants change and stability– As a team, we can deliver it
• Examine processes and look for improvements often
• Expect to implement new tools, but do them to support new processes not for their own sake
28
Instigate change
You should reach out to people in other silos
29
References
http://urbancode.com/resources• Enterprise CD Maturity Model• Death to Manual Deployments!• Build & Deployment Automation for the Lean
Economy• ITIL Release Management and Automation
Urbancode.com/blogs/Twitter.com/UrbanCodeSoftFacebook.com/UrbanCodeSoftSlideshare.net/Urbancode
30
Yes, we sell products for this
• uBuild – Build automation and CI for the hard problems
• uDeploy– Deployment and release management
• uCloud (coming soon)– Environment provisioning for in-house PaaS
Recommended
