4. Deploy Windows Containers

Question 1

Containers

Answer 1

A means for rapidly deploying virtualized, isolated operating system environments for application deployment and execution through the use of a shared operating system image.

containers do not perform a boot sequence

Question 2

Namespace isolation

Answer 2

each container only has access to the resources that are available to it.

Question 3

Resource governance

Answer 3

a container only has access to a specified amount of processor cycles, system memory, network bandwidth, and other resources and no more.

Question 4

Windows Server containers

and hyper-v containers

Answer 4

Windows containers share the kernel with the host for trustworthy applications.

hyper-v containers are more isolated and have their own container. for untrustworthy applications.

Question 5

Building a Hyper-v Container

Answer 5

1. Expose Virtualization
2. build a vm
3. turn on mac address spoofing
4. docker run -it –isolation=hyper-v microsoft/windowsservercore ping -t localhost

Question 6

Dockerd.exe

Answer 6

the docker engine or the daemon that runs in the background

Question 7

docker.exe

Answer 7

The docker client, the command shell you use to create and manage containers.

Question 8

DockerFiles

Answer 8

script files that contain instructions for the creation of container images.

Question 9

Docker-Hub

Answer 9

the docker registry that is filled with images for importing and building containers.

Question 10

docker cloud

Answer 10

a cloud service you can use to deploy you containerized applications.

Question 11

Installing docker on windows server

Answer 11

Install-module -name dockermsftprovider -repository psgallery -force

install-package -name docker -providername dockermsftprovider

restart-computer -f

Question 12

Configuration file

Answer 12

the docker engine is a palin text configuration file in the form of a .json and can be used to configure things like startup options.

Question 13

Install a base operating system

Answer 13

docker.exe - Docker pull

Powershell - request-containerimage -repository microsoft/windowsservercore

Question 14

Tag an image

Answer 14

Tagging a container is a version control mechanism it allows you to differentiate between image versions.

docker client - docker tag imagename:tag

PowerShell - add-containerimagetag -imageidorname _______ -repositroy ____ -tag #.#

failing to add a tag number will tag the image with the word latest, this does not mean it will actually be the latest image though if you are not managing your images properly.

Question 15

Uninstall a docker operating system image

Answer 15

docker.exe - docker rmi

PowerShell - remove-containerimage

Question 16

docker start

Answer 16

starts a container when you add a container id to the end of the command

Question 17

docker stop

Answer 17

stops a container when you add a container id onto the end of the command.

Question 18

Docker Attach

Answer 18

allows you to connect to a running container.

Question 19

Docker Commit

Answer 19

Create a new image from the current image you are working with.

Question 20

docker rm

Answer 20

removes a container

Question 21

transparent network

Answer 21

The container is connected to the same network as the container host.

Question 22

Docker build

Answer 22

allows you to build a new image