Docker Questions

Sets the working directory for subsequent instructions.

Copies files or directories from the host machine to the image.

Exposes a port from the container to the host.

Executes a command within the Docker image.

When you want to limit the container's network access for security reasons

When you need to run a network monitoring tool inside the container

When you need to expose multiple ports from the container

When you want to connect the container to a specific VLAN on the host

Containers share the host kernel, while VMs have their own.

Containers are used only for development, while VMs are for production.

Containers cannot run on the cloud.

Containers require more resources than VMs.

Amazon S3

GitHub repositories

Microsoft Azure Blob Storage

Docker Hub

Improved performance by using a faster networking protocol

Reduced resource consumption by sharing network resources

Increased security by isolating containers on different networks

Simplified management by automatically connecting all containers to a single network

container:

image:

build:

from:

docker remove

docker rm

docker erase

docker delete

Reduced security as the container can access all ports and resources on the host

Limited network performance due to sharing the host's network bandwidth

Increased network overhead due to network address translation (NAT)

Increased complexity in configuring network settings for the container

docker stop -r <container_id>

docker delete <container_id>

docker rm <container_id>

docker kill <container_id>

Storing Docker images in a central repository

Building individual Docker images

Deploying Docker containers to production servers

Defining and managing multi-container Docker applications