docker
intro
a short one
demo
yay
docker
- Heard of it?
- Used it?
Software
- Heard of it?
- Used it?
- Wrote it?
Environments
- development
- staging
- production
by machine role
Environments
- development - server-side
- development - client-side
- development - tests
- quality assurance
- operations
- etc
by team member role
Environments
- OS version, updates
- run-time (Java, .NET, nodejs)
- databases
- other software
- all of the above (combinations)
- matrix from hell [1]
setup
The matrix from hell
https://blog.docker.com/2013/08/paas-present-and-future/
Environments
- Phoenix server [2]
- Immutable server [3]
solutions
docker
- docker.com
- Platform for containerising software
- “Enables independence between applications” [4]
- VERY NICE
- what does it mean, though
again
docker
- Linux kernel black magic
- Not a new concept
- LXD by Canonical [5], etc
containers
docker
- standard unit of software
- stand-alone
- executable
- lightweight
containers
docker
virtual machine
https://www.docker.com/what-container
docker
- Linux (CentOS, Debian, etc.)
- OSX
- Windows (also Server)
- AWS, Azure, GC
- ARM (RaspberryPi) [6]
support
docker
- MSSQL (on Linux)
- IIS
windows?
docker
- https://www.docker.com/get-docker
- Community Edition
installing
docker
- via package manager
- https://docs.docker.com/engine/installation/linux/docker-ce/ubuntu/
installing on Linux
docker
- https://www.docker.com/docker-windows
- Hyper-V
- GUI
installing on Windows
docker
- https://www.docker.com/docker-mac
- MacOS hypervisor
installing on Mac
docker
- run a container
- Docker hub (store)
- Dockerfile
- docker build
- manage running containers
doing stuff
docker
pull
$ docker pull alpine:latestdocker
images
$ docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
alpine latest 37eec16f1872 13 hours ago 3.97MB
docker
run
$ docker run -it alpine cat /etc/issue$ docker run -it alpine /bin/shdocker
ps
$ docker ps$ docker ps -adocker
Dockerfile
FROM alpine:latest
CMD cat /etc/issuedocker
build
$ docker build -t myfirstimage .docker
https://github.com/codrineugeniu/docker-weather
demo
docker
docker-compose
docker
- containers are transient
Caveats
docker
- https://github.com/dockersamples/example-voting-app
further reading
References
- https://blog.docker.com/2013/08/paas-present-and-future/
- https://martinfowler.com/bliki/PhoenixServer.html
- https://martinfowler.com/bliki/ImmutableServer.html
- https://www.docker.com/what-docker
- https://linuxcontainers.org/lxd/introduction/
- https://blog.hypriot.com/getting-started-with-docker-on-your-arm-device/
docker intro
By andreimoustache
docker intro
docker - short intro and demo yay
