PuppetConf 2017: What’s in the Box?!- Leveraging Puppet Enterprise & Docker- Tricia Radcliffe, AppDynamics & Grace Andrews, Puppet
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“Docker, Docker, Docker.” It’s a phrase we hear often, but what are containers, what can they be used for, and why should you know more about them? In this session, Grace (Puppet) and Tricia (AppDynamics) will introduce attendees to Docker and help them build and deploy their first container with Puppet. They will leverage the docker_image_build module from the Puppet Forge and take attendees through the proper workflow for coupling Docker and Puppet together. The session will focus on how to use some of the newest Docker features, such as multi-stage build files and password stores within Docker so you can pass "secrets" to a swarm for login credentials. The goal is to provide newcomers with a working proficiency of how to get started deploying containers using Puppet as their automation tool.
![How Puppet Works
1. Define your desired state
2. Simulate configuration4. Report
3. Enforce configuration
service { ‘ntpd’:
ensure => running,
enable => true,
subscribe => File[‘/etc/ntp.conf’],
}](https://image.slidesharecdn.com/andrewsandradcliff-dockerandpuppetpuppetconf2017-171025161313/85/PuppetConf-2017-What-s-in-the-Box-Leveraging-Puppet-Enterprise-Docker-Tricia-Radcliffe-AppDynamics-Grace-Andrews-Puppet-7-320.jpg)
![[@NaukriEngineering] Docker 101](https://cdn.slidesharecdn.com/ss_thumbnails/dockerbasics1-161109085245-thumbnail.jpg?width=560&fit=bounds)
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PuppetConf 2017: What’s in the Box?!- Leveraging Puppet Enterprise & Docker- Tricia Radcliffe, AppDynamics & Grace Andrews, Puppet
- 2. What’s in the box?!: Leveraging Puppet Enterprise and Docker Grace Andrews + Tricia Radcliffe Sales Engineer Puppet Sales Engineer AppDynamics
- 3. Agenda What is Puppet => Automating Infrastructure for CI/CD Why use Puppet What is Docker => Moving to Containers Why use Docker How do we Build => Ship => Run from Puppet Puppet Docker Build Puppet Docker Run QUESTIONS
- 4. The Puppet Show Let’s talk about automation!
- 5. Automate for speed, reliability and security Define with a common language Gain situational awareness Orchestrate change intelligently Ensure security & compliance What’s needed to deliver and operate modern software simply, at scale and securely Across devices, through the stack
- 6. Puppet Master Windows Server Linux Server Network Device Puppet Architecture
- 7. How Puppet Works 1. Define your desired state 2. Simulate configuration4. Report 3. Enforce configuration service { ‘ntpd’: ensure => running, enable => true, subscribe => File[‘/etc/ntp.conf’], }
- 8. 1. Read the Puppet code and compile a catalog of every configuration and the relationships between them 2. Deliver the catalog to the node 3. Based on the catalog, determine the order in which to enforce the desired state 4. Report on what changes, if any, took place How Puppet Works
- 9. Anatomy of a Run 2. Catalog 3. Report 1. Facts
- 10. Packaging + out-of-the-box scalability User interface Open Source Puppet Role-based access control Visualization & reporting Orchestration Supported modules Supported platform Service Training Support Integrations Puppet Enterprise Overview
- 11. Docker Time Let’s talk about containers!
- 13. What is a Container? ● Standardized packaging for software and dependencies ● Isolate apps from each other ● Share the same OS Kernel ● Works for all major Linux distributions ● Containers native to Windows Server 2016
- 14. Containers are not VMs ● Isolated namespaces ● Shared resources ● Quick to boot ● Smaller footprint CONTAINERS ● Isolated resources ● Full OS + App ● Longer to boot ● Larger footprint VMs
- 15. Different but not mutually exclusive
- 16. Some Docker Vocabulary Docker Image The basis of a Docker container. Represents a full application Docker Container The standard unit in which the application service resides and executes Docker Engine Creates, ships and runs Docker containers deployable on a physical or virtual, host locally, in a datacenter or cloud service provider Registry Service (Docker Hub or Docker Trusted Registry) Cloud or server based storage and distribution service for your images
- 17. Docker Community Edition Ideal for developers and small teams. Supported on Desktops, Cloud, Open Source OS •The latest Docker version with integrated tooling to build, test and run container apps •Available for free with software maintenance for the latest shipping version •Integrated and optimized for developer desktops, Linux servers and clouds.
- 19. Build, Ship, Run Workflow Developers IT Operations BUILD Development Environments SHIP Create & Store Images RUN Deploy, Manage, Scale
- 20. Dockerfiles What is a Dockerfile? • Instructions on how to build a Docker image • Looks very similar to “native” commands • With image_build module you do not have to know how to create a Dockerfile
- 21. Foraging in the Forge puppetlabs/docker_platform ● installs, configures, and manages the Docker daemon and Docker containers. puppetlabs/image_build ● Builds Docker images from current puppet code. Puppetconf Repo ● Module that has the examples we used to build a docker image and puppet files to run docker containers. Modules to use **module dependencies will be downloaded automatically IF you download from the CLI
- 22. What’s Happening
- 23. DEMO
- 24. Docker Commands # list images available on Docker Host docker image ls # show running containers on Docker Host docker container ps # run a container docker run –d –p 8069:80 --name puppet-nginx tchung02/puppet-nginx # stop a container docker container stop <container id> # upload image to Docker Hub docker push tchung02/puppet-nginx:3.0
- 25. RECAP 1. Set Up Puppet Deployment a. Stand up master + agents b. download modules c. clone Puppetconf repo. d. puppetlabs/image_build e. Builds Docker images from current puppet code. f. Puppetconf Repo g. Module that deploys a container running a …. What did we do? **module dependencies will be downloaded automatically IF you download from the CLI
- 26. Honorable Mentions Scott Coulton => Docker Capt. (AUS), Software Eng. @Puppet ‘Zero to Kubernetes’ => Thu., Oct 12, 3:15pm Scott’s Blog Post => https://scottydoesntknow.io/puppet-loves-docker/ Gert Drapers => VP Engineering Cloud, Containers, Discovery & Insights @ Puppet ‘State of Union: Containers at Puppet’ => Thu., Oct 12, 11:45am Jeremy Adams => 2015 Docker Demo; Puppet Senior SE Manager Mike G. Coleman => Docker 101 Catweb Repo Rilindo F. => Linux Academy How-To Jesus Garcia => Puppet City Sean Techavatnavisal => Puppet SE Mark Wilkerson => Software Engineer @ Twitch/Amazon