docker build -t <image-name> --build-arg YOUR_ARG="<arg-value>" .

# -d: as deamon
# --rm: exit and remove
docker run -d -p 80:80 -p 443:443 --name <container-name> -v /opt/websites/app:/usr/share/nginx/html <image-name>

# enter the terminal
docker exec -it <container-name> /bin/bash

docker image remove <image-name>

docker container rm <container-name>

##
docker container rename <container-name> <new-container-name>
docker rm -f <container-name>

# build from github
docker build -t <image-name> <https://github.com/bndynet/docker.nginx.git[#<branch/tag>:<dir-for-context>]>

# Copy & Move 
## Export and import containers
docker export container-name | gzip > container-name.gz
zcat container-name.gz | docker import - container-name
## Container image migration - Using this method, the data volumes will not be migrated, but it preserves the data of the application created inside the container.
docker commit container-id image-name
## Save and load images
docker save image-name > image-name.tar
cat image-name.tar | docker load
## copy files from container into host which does not need a running container
docker cp your-file-path-in-container your-host-location

# Publish
docker build -t bndynet/image-name:1.0 .
docker push bndynet/image-name:1.0

Networking

Networking overview

# bridge: The default network driver
# host: use the host’s networking directly
docker --network bridge|host|overlay|ipvlan

Change the port for the existing container

You can change the port mapping by directly editing the hostconfig.json file at /var/lib/docker/containers/[hash_of_the_container]/hostconfig.json or /var/snap/docker/common/var-lib-docker/containers/[hash_of_the_container]/hostconfig.json, I believe, if You installed Docker as a snap.

You can determine the [hash_of_the_container] via the docker inspect <container_name> command and the value of the "Id" field is the hash.

1. Stop the container (docker stop <container_name>).
2. Stop docker service (per Tacsiazuma's comment)
3. Change the file.
4. Restart your docker engine (to flush/clear config caches).
5. Start the container (docker start <container_name>).

Example:

IMAGE_NAME = "bndynet/nginx"
CONTAINER_NAME = "web"

docker rm -f $CONTAINER_NAME || true
docker image rm $IMAGE_NAME || true
docker build -t $IMAGE_NAME .

docker run -d -p 80:80 -p 443:443 --name $CONTAINER_NAME -v /opt/website:/usr/share/nginx/html -v /etc/ssl:/etc/ssl $IMAGE_NAME

Mirrors

{
  "registry-mirrors": [
    "<https://registry.docker-cn.com>",
    "<http://hub-mirror.c.163.com>",
    "<https://docker.mirrors.ustc.edu.cn>"
  ]
}