60
votes
19
answers
787
views
How does one remove a Docker image?
I'm running Docker under Vagrant under OS X 10.8.4 (Mountain Lion), and whenever I try to delete a saved
47
votes
27
answers
2.3K
views
How to remove old and unused Docker images
When running Docker for a long time, there are a lot of images in system. How can I remove all unused Docker i
55
votes
29
answers
2.4K
views
Where are Docker images stored on the host machine?
I managed to find the containers under directory /var/lib/docker/containers, but I can't find the images.
53
votes
14
answers
2.9K
views
56
votes
14
answers
1.3K
views
How do I pass environment variables to Docker containers?
I'm new to Docker, and it's unclear how to access an external database from a container. Is the best
60
votes
15
answers
1.7K
views
How to deal with persistent storage (e.g. databases) in Docker
How do people deal with persistent storage for your Docker containers? I am currently using this approach: bu
65
votes
28
answers
1.9K
views
What is the difference between a Docker image and a container?
When using Docker, we start with a base image. We boot it up, create changes and those changes are saved in la
54
votes
9
answers
2.1K
views
How to force Docker for a clean build of an image
I have build a Docker image from a Docker file using the below command. $ docker build -t u12_core -f u12_cor
66
votes
30
answers
1.9K
views
How to remove old Docker containers
This question is related to Should I be concerned about excess, non-running, Docker containers?. I'm won
54
votes
26
answers
1.2K
views
How do I get into a Docker container's shell?
I'm getting started working with Docker. I'm using the WordPress base image and docker-compose. I&a
66
votes
30
answers
923
views
How to get a Docker container's IP address from the host
Is there a command I can run to get the container's IP address right from the host after a new container
60
votes
16
answers
1.2K
views
How to copy Docker images from one host to another without using a repository
How do I transfer a Docker image from one machine to another one without using a repository, no matter private
55
votes
30
answers
604
views
How to copy files from host to Docker container?
I am trying to build a backup and restore solution for the Docker containers that we work with. I have Docker
55
votes
17
answers
2.4K
views
What is the difference between CMD and ENTRYPOINT in a Dockerfile?
In Dockerfiles there are two commands that look similar to me: CMD and ENTRYPOINT. But I guess that there is a
43
votes
30
answers
2.4K
views
From inside of a Docker container, how do I connect to the localhost of the machine?
So I have a Nginx running inside a docker container, I have a mysql running on localhost, I want to connect to
61
votes
21
answers
2.9K
views
Docker: Copying files from Docker container to host
I'm thinking of using Docker to build my dependencies on a Continuous Integration (CI) server, so that I
57
votes
16
answers
592
views
What is the difference between the 'COPY' and 'ADD' commands in a Dockerfile?
What is the difference between the COPY and ADD commands in a Dockerfile, and when would I use one over the ot
54
votes
21
answers
2.9K
views
How is Docker different from a virtual machine?
I keep rereading the Docker documentation to try to understand the difference between Docker and a full VM. Ho
60
votes
8
answers
2.9K
views
Create new user in MySQL and give it full access to one database
I want to create a new user in MySQL and give it full access only to one database, say dbTest, that I create w
60
votes
24
answers
584
views
Find duplicate records in MySQL
I want to pull out duplicate records in a MySQL Database. This can be done with: SELECT address, count(id) a