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Functional Project Questions
Does the project present a DockerFile?
Try running the command docker image build [OPTIONS] PATH | URL | -
to build the image. (example : docker image build -f Dockerfile -t <name_of_the_image> .
).
student$ docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
<name of the image> latest 85a65d66ca39 7 seconds ago 795MB
Run the command docker images
to see all images. Does the docker image build as above?
Try running the command docker container run [OPTIONS] IMAGE [COMMAND] [ARG...]
to start the container. (example : docker container run -p <port_you_what_to_run> --detach --name <name_of_the_container> <name_of_the_image>
)
student$ docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
cc8f5dcf760f ascii-art-web-docker "./server" 6 seconds ago Up 6 seconds 0.0.0.0:8080->8080/tcp ascii-art-web
Run the command docker ps -a
to see all containers. Is the docker container running as above?
Try running the command docker exec [OPTIONS] CONTAINER COMMAND [ARG...]
. (example : docker exec -it <container_name> /bin/bash
) and do a ls -l
to see the file system.
student$ docker exec -it postgres /bin/bash
I have no name!@51c2efe2d366:/$ ls -l
drwxr-xr-x 1 root root 4096 Dec 28 15:31 bin
-rwxr-xr-x 2 root root 4096 Sep 8 10:51 server.go
drwxr-xr-x 2 root root 4096 Sep 8 10:51 templates
I have no name!@51c2efe2d366:/$ exit
exit