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A development team needs to containerize an application named 'cust475605674\ A Dockerfile has been created and now the docker build command needs to be run using the current folder to find the Dockerfile. build the image and create a local repository named 'cust321453857-rep' that points to that image. Which command must be used?
Suggested Answer: A
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To build a Docker image using the current folder and a specified Dockerfile, and then tag the image with a specific name for the local repository, the following command is used:
docker build: This command builds a Docker image from a Dockerfile.
-t cust321453857-rep: The -t option tags the resulting image with the specified name (cust321453857-rep).
-f Dockerfile: The -f option specifies the Dockerfile to use for building the image.
Command:
docker build -t cust321453857-rep -f Dockerfile .
Docker Build Command: Docker Build
31 comments · newest first
OS
Osvaldo
11 months ago
I’m not sure about this, but I thought the Dockerfile should be specified with a path.
RE
Rebeca
11 months ago
I think option C is missing the `-t` flag too.
AR
Artie
11 months ago
Wait, why is there a `.txt` in option B? That seems off.
BI
Billy
11 months ago
Definitely going with option A! Looks right to me.
ER
Ernest
12 months ago
The correct command should include the `-t` flag for tagging.
TE
Tess
12 months ago
I think the `-f` flag is important for specifying the Dockerfile, but I’m confused about the file extension in some of these options.
AL
Alva
1 year ago
I feel like option A is close, but I’m not sure if it needs the `.` at the end to indicate the current directory.
MI
Mitsue
1 year ago
I remember practicing a similar question where we had to specify the Dockerfile location, but I can't recall if it was `-f` or something else.
ER
Erick
1 year ago
I think the command should include the `-t` flag for tagging the image, but I'm not sure if the syntax is exactly right.
WI
Wilson
1 year ago
This seems straightforward. I think option A is the correct answer, but I'll quickly review the other options just to be sure.
EL
Elliott
1 year ago
I'm a bit confused by the specific details in the question. I'll need to double-check the Docker documentation to make sure I'm using the right commands.
AP
Apolonia
1 year ago
I'm pretty confident I know the answer to this one. The key is using the correct syntax for the docker build command.
DE
Detra
1 year ago
Okay, let me think this through step-by-step. We need to build an image and create a local repository for it, so I'll need to use the right Docker commands.
GL
Glory
1 year ago
Hmm, this looks like a tricky one. I'll need to carefully read through the question and options to make sure I understand exactly what it's asking.
AR
Arlene
2 years ago
Option A is the way to go. If you're not using the -t flag, how are you supposed to show off your mad Docker skills at the next team meeting?
KA
Kanisha
2 years ago
I'm going with A as well. Gotta love those straightforward Docker commands, am I right? It's like a secret language that only the true DevOps masters understand.
DU
Dulce
2 years ago
Definitely option A. It's the only one that makes sense. The other options either have the wrong flags or the wrong file name. This is a no-brainer, folks.
NE
Nell
2 years ago
Yes, option A is the only one that includes the tag and the correct file name.
NA
Natalya
2 years ago
I agree, option A is the way to go. The other options are not correct.
PE
Percy
2 years ago
Option A is the correct one. It specifies the tag and the Dockerfile.
LE
Leatha
2 years ago
Option A seems to be the way to go. I mean, who wants to name their Dockerfile 'Dockerfile.txt'? That's just asking for trouble!
DE
Denny
2 years ago
Allene: Agreed, let's use docker build -t cust321453857-rep -f Dockerfile.
JU
Justine
2 years ago
User 3: Let's go with option A then.
AL
Allene
2 years ago
User 2: Yeah, naming it 'Dockerfile.txt' seems like a bad idea.
MA
Marshall
2 years ago
User 1: I agree, option A is the best choice.
RO
Ronny
2 years ago
I think the correct answer is A. The command 'docker build -t cust321453857-rep -f Dockerfile' will build the image and create a local repository named 'cust321453857-rep' that points to that image. The -t flag is used to tag the image with a name, and the -f flag specifies the location of the Dockerfile.
DO
Dottie
2 years ago
Let's go ahead and run 'docker build -t cust321453857-rep -f Dockerfile' to containerize the application.
PA
Paola
2 years ago
Yes, using the -t flag to tag the image and -f flag to specify the Dockerfile location is the right approach.
RO
Ronnie
2 years ago
I agree, option A is the correct command to use.
GI
Gilberto
2 years ago
I agree with Fallon, option A makes sense because it specifies the tag and the Dockerfile.
FA
Fallon
2 years ago
I think the answer is A.