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Docker images, containers, hub, and everything related to the containerization platform
41
votes
Accepted
Understanding Docker layers
The docker inspect subcommand can be used on a docker image to reveal its nature of being a linked list of filesystem layers. … A file added by some docker instruction and removed by some later instruction is not present in the resulting filesystem but it is mentioned two times in the docker layers constituting the docker image …
17
votes
Accepted
Are there any drawbacks of using a deb package as if it was a container to deploy an applica...
First, while Docker is sometimes seen and used as a ad hoc packaging system, it actually solves a totally different problem: Docker is about running programs. … Docker has a “built-in” (paying) service for hosting artefacts it produces, the Docker Hub.
Now what are the strength of Debian packages over Docker images as a package system? …
8
votes
2
answers
1k
views
How to cache third party resources in a build pipeline?
What the is the best way to cover the two following cases when building docker images:
Caching files downloaded with a curl or wget.
Caching Debian packages. …
5
votes
Accepted
How to run experimental Docker features on CircleCI
This is the problem you are facing here: you want to run docker, but you do not have access to the daemon, only to a subset of its functions. …
4
votes
Accepted
How to structure DevOps related code and configs in a code repository?
The reason for this is that we want to consider artefacts (e.g. a docker image or a software package) as the objects of the following verbs:
build
test
deploy
to consider a minimal set of automated …
1
vote
Is Docker right for my use case?
The Docker system is conceived to easily describe and deploy services, especially micro-services, possibly on several hosts – e.g. a Docker swarm or a Kubernetes cluster. … When using both of them, the Debian package is used in the production of the Docker image, and your Dockerfile (the recipes used to prepare the Docker image describing the “virtualised system” ran in a …