Docker Pipeline plugin in Jenkins - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to build a Docker image named 'myapp' using the Docker Pipeline plugin.

Jenkins

docker.build('[1]')

Drag options to blanks, or click blank then click option'

Abuild

Bimage

Cmyapp

Dcontainer

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'build' or 'container' instead of the image name.

Leaving the argument empty.

The docker.build() function requires the image name as a string argument. Here, 'myapp' is the correct image name.

2fill in blank

medium

Complete the code to run a Docker container from the image 'myapp' and execute the command 'echo Hello'.

Jenkins

docker.image('myapp').[1]('echo Hello')

Drag options to blanks, or click blank then click option'

Arun

Bbuild

Cinside

Dstart

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'build' which is for building images.

Using 'inside' which is for running commands inside an existing container context.

The run() method runs a container from the specified image and executes the given command inside it.

3fill in blank

hard

Fix the error in the code to push the Docker image 'myapp' to the registry.

Jenkins

docker.image('myapp').[1]()

Drag options to blanks, or click blank then click option'

Apush

Bpublish

Cupload

Ddeploy

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'publish' or 'upload' which are not valid methods.

Using 'deploy' which is unrelated to Docker image pushing.

The push() method uploads the Docker image to the configured Docker registry.

4fill in blank

hard

Fill both blanks to run a command inside a Docker container with a custom environment variable.

Jenkins

docker.image('myapp').inside("-e [1]=[2]") {
  sh 'printenv'
}

Drag options to blanks, or click blank then click option'

AMY_VAR

BVALUE

CENV_VAR

D123

Attempts:

3 left

💡 Hint

Common Mistakes

Swapping variable name and value.

Using invalid method names or flags.

The inside() method runs commands inside a container. The -e flag sets environment variables. Here, 'MY_VAR' is the variable name and 'VALUE' is its value.

5fill in blank

hard

Fill all three blanks to build a Docker image, tag it with 'latest', and push it to the registry.

Jenkins

def app = docker.[1]('[2]')
app.[3]()

Drag options to blanks, or click blank then click option'

Abuild

Bmyapp:latest

Cpush

Drun

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'run' instead of 'push' to upload the image.

Omitting the tag in the image name.

First, docker.build() builds the image with the tag 'myapp:latest'. Then, push() uploads it to the registry.