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class: title
Our training environment
Installing Docker
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For the hands on parts, we'll need Docker installed
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On Mac or Windows: the easiest solution is Docker Desktop
(it's free; with upsells for extra features)
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On Linux: the easiest solution is Docker CE
(Community Edition; a set of open source packages)
What is Docker?
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"Installing Docker" really means "Installing the Docker Engine and CLI".
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The Docker Engine is a daemon (a service running in the background).
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This daemon manages containers, the same way that a hypervisor manages VMs.
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We interact with the Docker Engine by using the Docker CLI.
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The Docker CLI and the Docker Engine communicate through an API.
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There are many other programs and client libraries which use that API.
class: in-person
tailhist
The shell history of the instructor is available online in real time.
Note the IP address of the instructor's virtual machine (A.B.C.D).
Open http://A.B.C.D:1088 in your browser and you should see the history.
The history is updated in real time (using a WebSocket connection).
It should be green when the WebSocket is connected.
If it turns red, reloading the page should fix it.
Checking our Docker install
Let's make sure that we can run a basic Docker command:
.small[
$ docker version
Client:
Version: 18.03.0-ce
API version: 1.37
Go version: go1.9.4
Git commit: 0520e24
Built: Wed Mar 21 23:10:06 2018
OS/Arch: linux/amd64
Experimental: false
Orchestrator: swarm
Server:
Engine:
Version: 18.03.0-ce
API version: 1.37 (minimum version 1.12)
Go version: go1.9.4
Git commit: 0520e24
Built: Wed Mar 21 23:08:35 2018
OS/Arch: linux/amd64
Experimental: false
]
???
:EN:Container concepts :FR:Premier contact avec les conteneurs
:EN:- What's a container engine? :FR:- Qu'est-ce qu'un container engine ?