Docker cheat-sheet
create a image from a running container
docker commit -m " commit messange" -a "author info" <container-id/name> username/iamgename:tag
ex: docker commit -m "added server" -a "arif istiak" 0123asd123 aistiak/saas_apache:v3.2
- -m is commit message
- -a is author info
run bash in a container in interactive mode
docker exec -it <container-id/name> bash
ex: docker exec -it yguyg123gy bash
tag an image
docker tah <base-img-name> <new-name>:<tag-name>
if we want to push the image to docker hub then we would have to tag it like
docker tag <base-img-name> <docker-hub-username>/<new-img-name>:<tag>
ex docker tag ubuntu:latest aisrika/ubuntu:my-svr
push a image to docker hub
- have to be logged into docker hub
- image name has to be in format like
username/imagename:tag ex: aistiak/saas_apache:v2.3
- docker push <image-name>
RUN VS CMD in DockerFile
RUN is run agains the image & CMD is agains the container
CMD can be used only once in a dockerfile
HackMD
