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Questions tagged [containers]

436 questions
9
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3 answers

Why LXC when there is linux-vserver?

I am no LXC expert, but as far as I know it is really similar to linux-vserver. If that is correct, I wonder why there is another player in the already crowded virtualization camp? What does LXC provide (or promise) that linux-vserver doesn't…
Luke404
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8
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5 answers

AWS ECS service not starting any tasks

I've set up a cluster, container, task and service on ECS. After I created the service, it appears to be running with '3 desired tasks', however no tasks are being created as pending or running. Effectively it seems to be doing nothing. My task…
Jack3311
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8
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2 answers

How to prevent docker-compose appending hashes to created container names?

I have a server with several lxc containers. In some of the containers there is a docker installed. Usually a docker compose action in these LXC containers results in container names with the format appname_service_1, e.g. wordpress_app_1 and…
simonszu
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8
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1 answer

Is it possible to add Active Directory to a windows container?

At my company we're currently developing a product which will eventually support authentication via OpenLDAP and Active Directory. We have configured a Windows Server 2016 and would like to create an isolated environment via windows containers to…
tftd
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8
votes
1 answer

Do I need a CPU that supports Virtuallization to do Containerization?

I've read that Containerization is cheaper than virtualization; I know that containerization uses less resources than virtualization since there's only one OS involved and no virtualized hardware. But do I need a CPU that supports virtualization to…
leeand00
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8
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3 answers

Scaling out Dokku infrastructure

I just finished setting up a Dokku-based infrastructure, but i'm curious about how to scale it. I followed this tutorial by Digital Ocean, but there's not mention of HA or scalability. Is it possible to load balance dokku instances? How to provide…
vinnylinux
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1 answer

How to find out PID of the container using crictl

Kubernetes is deprecating Docker as CRI engine. Now there is containerd and CRI-O, which can be used as an alternative to it. Both can be managed via crictl from cri-tools. I need some common way to find the PID of running container. Actually I need…
kvaps
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2 answers

Should I split up an application in multiple, linked, Docker containers or combine them into one?

Background I'm currently working on building an application which I want to deploy to Docker containers. The containers will run on a server of mine. I want to have the ability to run other applications on the same server without bloating up the…
Alex
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7
votes
3 answers

Publicly routable IPv6 linux container

My goal is to have a routable public IPv6 address for each of my docker containers. I want to be able to connect into and out of my containers using the IPv6 protocol. I'm using Linode and I've been assigned a public IPv6 pool: 2600:3c01:e000:00e2::…
daaku
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7
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1 answer

SECURITY: Should containers run TLS or can they rely on its sidecar?

I wonder how security experts think about making container traffic secure. Let's take a simple K8S cluster as an example. I guess we all agree that running HTTPS instead of HTTP within each container is more secure. I would normally configure a TLS…
xpepermint
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6
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4 answers

docker cron not working

I am trying to build a docker image which would have a cron. A cron which will delete files from particular location of docker file system. Below is my Dockerfile FROM ubuntu:latest MAINTAINER docker@ekito.fr RUN apt-get update && apt-get -y…
Shailesh Sutar
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6
votes
4 answers

which images dockerd starts automatically?

Once I have restarted the docker service on Ubuntu box with service docker restart it started some of the containers I didn't expect it to start. Why is that? Which config file/storage/whatever holdw information about which images should be…
Max Kosyakov
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6
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2 answers

Multi-container docker on AWS - Nginx use host machine /etc/hosts resolver

I have a multi-container docker environment on Amazon Elastic Beanstalk with the following Dockerrun.aws.json file: { "AWSEBDockerrunVersion": 2, "containerDefinitions": [ { "name": "web", "memoryReservation": 256,…
the_critic
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6
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1 answer

How to properly setup docker networks on Windows 2016?

I have already setup docker engine modules and I got NAT switch automatically created. My question is: if there is any chance I could use existing Hyper-V virtual switch for connecting my containers to? Can I also make my network connection…
katyn12
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6
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2 answers

Migrate FreeBSD Jails to Linux

we are running some jails in FreeBSD 10 and the decision has been made to decommission the FreeBSD server and migrate all the jails to Linux environment Red Hat 6 or 7. Is there a straight forward way of migrating BSD jails to linux -- as containers…
sandeep.s85
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