Vagrant + Docker provider [+Puppet]
43 likes17,076 views
The document discusses the integration of Vagrant and Docker to automate the setup of development environments, emphasizing the benefits of speed, isolation, and resource management. It contrasts Vagrant with Docker, detailing commands, advantages, and how to use both tools together for better configuration management. Additionally, it provides links to tutorials, sample configurations, and best practices for utilizing Docker images within Vagrant environments.
![By Nicolas Poggi @ni_po
provider
July, 2014
Sources: https://github.com/npoggi/vagrant-docker
Docker Barcelona:
+
[+ ]](https://image.slidesharecdn.com/npoggivagrant-docker-140725100147-phpapp02/85/Vagrant-Docker-provider-Puppet-1-320.jpg)
![X
About Vagrant [+ puppet]
It’s all about AUTOMATION
Designed to build and setup replicable, isolated, [DEV] envs
Isolation (similar to docker)
Package code + environment
Multiplatform
Multiple Dev Envs
Distributable
Avoids having a central DEV server/s
Keep different versions
Simplifies Configuration Management
(Also Docker’s)
About puppet
World’s favorite Configuration Management tool](https://image.slidesharecdn.com/npoggivagrant-docker-140725100147-phpapp02/85/Vagrant-Docker-provider-Puppet-4-320.jpg)
![About Docker
Light-weight replacement for VMs in several scenarios
Also for Vagrant
Based on Linux containers
Adds abstraction layer
GIT like for OS images
Every step creates a different image
Docker hub integrates with github [and bitbucket]
Similar to Vagrant
Vagrantfile ~= Dockerfile
CONS
Complex commands](https://image.slidesharecdn.com/npoggivagrant-docker-140725100147-phpapp02/85/Vagrant-Docker-provider-Puppet-5-320.jpg)
![Saving state [and time] - Docker Hub
Get container CONTAINER_ID
docker ps
Commit image
docker commit [–m “my comment”] CONTAINER_ID user/repo[:tag]
(had permissions problems to the main repo)
Push image
docker push user/repo[:tag]](https://image.slidesharecdn.com/npoggivagrant-docker-140725100147-phpapp02/85/Vagrant-Docker-provider-Puppet-21-320.jpg)
![Final notes
Get back you DEV ENV!
Speedup development
R&D
+
[+ ]
Code
https://github.com/npoggi/vagrant-docker
Docker images
https://registry.hub.docker.com/u/npoggi/](https://image.slidesharecdn.com/npoggivagrant-docker-140725100147-phpapp02/85/Vagrant-Docker-provider-Puppet-28-320.jpg)
Vagrant + Docker provider [+Puppet]
- 1. By Nicolas Poggi @ni_po provider July, 2014 Sources: https://github.com/npoggi/vagrant-docker Docker Barcelona: + [+ ]
- 2. About Nicolas Poggi @ni_po Previous: Current: Organizing s:
- 3. Motivation
- 4. X About Vagrant [+ puppet] It’s all about AUTOMATION Designed to build and setup replicable, isolated, [DEV] envs Isolation (similar to docker) Package code + environment Multiplatform Multiple Dev Envs Distributable Avoids having a central DEV server/s Keep different versions Simplifies Configuration Management (Also Docker’s) About puppet World’s favorite Configuration Management tool
- 5. About Docker Light-weight replacement for VMs in several scenarios Also for Vagrant Based on Linux containers Adds abstraction layer GIT like for OS images Every step creates a different image Docker hub integrates with github [and bitbucket] Similar to Vagrant Vagrantfile ~= Dockerfile CONS Complex commands
- 6. Docker basics Command Description docker docker pull docker images docker ps docker run docker rm/rmi Lists commands Downloads container images Lists available images Lists running containers Executes a command in a container Deletes images
- 7. Docker tutorial https://github.com/harbur/docker-workshop By Dimitris Kapanidis @spiddy Initial Steps: 1. docker version 2. docker pull ubuntu 3. docker pull nginx 4. git clone https://github.com/harbur/docker-workshop
- 8. Docker advantages Speed lightweight Isolation Automation Portability Migration … more to come
- 9. Why Vagrant + Docker provider? Same reason on “why Docker” Get rid of the VM Free system resources No reserved RAM memory or CPU/s Get back control of your own machine! Same reasons on “why Vagrant” Best way to learn puppet, so a good way to learn docker Vagrant takes care of many manual chores … Makes sense! You are dealing with DEV environments Fewer security concerns Limited resources on laptops Keep active tens of different DEV environments …and vagrant up anything! Including docker vagrant up vs. sudo docker run -d -name image_name -p 8080:80 -t user/repo
- 10. Requirements 1.) Get a real open-source GNU OS …With the latest kernel, i.e., Archlinux Sorry Mac and Windows… Don’t cry, boot2dockerto the rescue Vagrant fires up the VM on non supported platforms Latest Vagrant version v1.6 > Latest Docker version v1.0 > Root access (for Docker)
- 11. Vagrant providers Official providers Virtualbox (DEFAULT) VMWare Amazon … Docker YES! Other providers
- 12. Basic Vagrant commands Vagrant Docker provider vagrant up provision ssh halt/suspend vagrant docker-logs docker-run NOTE: You can still use all of docker commands!
- 13. Docker provider for Vagrant 1.) Docker images 2.) Dockerfile Use a pre-built docker image Pros Easy Faster to deploy No need to deal with the Docker file Cons Less control Public images Build your own (w/ Vagrant) Cons More complex Slow to start (then is cached) Pros Custom made Privately managed For free Two alternative routes
- 14. Building a docker image in Vagrant The hard way
- 15. Dockerfile, the requisites for Vagrant 1. Import image FROM repo:tag 2. Create vagrant user 1. create password 2. sudo permissions and password-less 3. Configure SSH 1. Setup keys 4. Install base packages 5. Install Configuration Management system 1. Puppet, etc… 6. Expose SSH port 7. Run SSH as a daemon
- 16. Sample Docker file for vagrant https://github.com/npoggi/vagrant-docker/blob/master/Dockerfile
- 17. The Vagrantfile Optional: Setup docker a default provider Select If to build from a Dockerfile Or use a prebuilt docker image Set has.ssh to true Rest as usual in a Vagrantfile Ports, mounts Config management i.e., puppet Example https://github.com/npoggi/vagrant-docker/blob/master/Vagrantfile
- 18. Building, running, setting up, deploying, etc. just vagrant up
- 19. Use prebuilt docker images for Vagrant The easy way Examples at: https://hub.docker.com/u/npoggi/ https://registry.hub.docker.com/search?q=vagrant
- 20. Other ways to create images 1. Use docker 2. Docker Hub 1. Link your github project (public or private (at a cost)) 2. Select Automate build 3. Point to your Docker file 4. And … Wait for the build to complete!
- 21. Saving state [and time] - Docker Hub Get container CONTAINER_ID docker ps Commit image docker commit [–m “my comment”] CONTAINER_ID user/repo[:tag] (had permissions problems to the main repo) Push image docker push user/repo[:tag]
- 22. Try it yourself Install requirements (latest vagrant and docker) Basic usage: 1. git clone https://github.com/npoggi/vagrant-docker.git 2. cd vagrant-docker 3. sudo vagrant up Test: http://localhost:8080/ Advanced usage: For a vanilla image built using the same docker file: DOCKER_IMAGE='npoggi/vagrant-docker‘ sudo vagrant up --provision For a pre-provisioned image with the puppet config (saves time) DOCKER_IMAGE='npoggi/vagrant-docker-provisioned' sudo vagrant up --provision
- 23. Time improvements Vagrant virtualbox (default) Vagrant docker vagrant up: 30.6s vagrant halt: 7.1s vagrant up: 2.6s Vagrant halt: 2.3
- 24. Gotchas! …and annoyances Docker by default requires root permissions! Be ready for BUGS!!! Vagrant Docker provider less stable Doesn’t save to run docker commands occasionally Docker too… Renames in machines are a problem (manual work) Delete orphaned images with complex commands … Vagrant package command only for virtualbox Docker image downloads quite slow… …there is still Mac and Windows
- 25. Other considerations and Alternatives Can Docker replace vagrant use? Yes, but… Docker abstraction alternative to Vagrant: FIG http://orchardup.github.io/fig/ Alternatives to Docker in Vagrant vagrant-lxc plugin (not official) vs.
- 26. Future steps for the source code Multiple Vagrant-Docker machines Light-weight OS Boot2Docker, CoreOS, Project Atomic Vagrant + Docker provider+ Docker Inception kick! Docker patterns Terraform (for PROD)
- 27. Tips and tricks Update to the latest versions (i.e., github) Docker by default requires root permissions! Add your user to the docker group sudo usermod -a -G docker your_user; newgrp docker; #or relogin Change the default image dir (to control repo size) Edit the service description add -g /home/user/docker_images Delete “untagged/orphaned images” docker rmi $(docker images -a | grep "^<none>" | awk '{print $3}') Enable IPv4 forwarding to allow internet connections inside the containers
- 28. Final notes Get back you DEV ENV! Speedup development R&D + [+ ] Code https://github.com/npoggi/vagrant-docker Docker images https://registry.hub.docker.com/u/npoggi/
- 29. Credits and References Vagrant specific Main site: http://www.vagrantup.com/ Alternative to Docker: https://github.com/fgrehm/vagrant-lxc PROD Vagrant-like: http://www.terraform.io/ Docker specific Docker: https://www.docker.com/ Docker hub: https://registry.hub.docker.com Light-weight VM: https://github.com/boot2docker/boot2docker Fig (Vagrant alternative): http://orchardup.github.io/fig/ Puppet labs: http://puppetlabs.com/