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1
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2answers
36 views

Only start a Docker container after process in other container is operational

I'm trying to deploy 3 Docker containers, having a dependency relation amongst them (A -> B -> C). Now, each container is supposed to run an Akka-Spray instance, on top of a JVM instance. The ...
3
votes
3answers
101 views

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 ...
0
votes
0answers
26 views

Docker container for on-demand deployment of other Docker containers

I have read the "Getting Started" introduction on Docker's website, but I still have one question I could not find an answer to: Is it possible to set up a Docker container which can create other ...
0
votes
1answer
40 views

OpenVZ Container Restart

I'm wondering if there are any public scripts to automatically restart OpenVZ containers on certain load amount / high cpu. Trying to limit my containers on my personal machine, thanks.
1
vote
1answer
246 views

How to add a file to a docker container which has no root permissions?

I'm trying to add a file to a Docker image built from the official tomcat image. That image does not seem to have root rights, as I'm logged in as user tomcat if I run bash: docker run -it tomcat ...
1
vote
1answer
86 views

communication between containers in docker other than sockets/network

Is there any to way to communicate among docker containers other than via sockets/network? May be it can be IPC or some other means. Is it feasible? I have read docker documentation which says we ...
0
votes
2answers
105 views

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 ...
0
votes
1answer
69 views

Docker attach to curses process

I'm trying to use docker attach to attach to curses-based graphical process: $ docker run --name irssi -it pandrew/irssi irssi When you detach from this process using ^P^Q and reattach with docker ...
2
votes
0answers
49 views

LXC containers act differently on difrent servers [closed]

I have two physical servers A and B. I wanted to upgrade them from Ubuntu 12.04 to 14.04. Here is my current setup (if I'm left out any info here, let me know and I'll add it): Server A: Ubuntu ...
2
votes
1answer
608 views

Can a Docker container uses the full CPU power and memory of the host OS?

I am new to Docker, but I have experience of using VM and hypervisor. Referring to Docker introduction and this image, Docker containers are isolated but share the same host OS. If we deploy only 1 ...
5
votes
1answer
573 views

Proper way of handling LXC containers on btrfs

Lets say we have one server with lxc installed, and a lxc container used for as a base img /var/lib/lxc/ubuntu_base. For simplicity let's forget the config changes after copying the base img. some ...
0
votes
2answers
1k views

LXC Container Networking

I just started to experiment with LXC containers. I was able to create a container and start it up but I cannot get dhcp to assign the container an IP address. If I assign a static address the ...
20
votes
3answers
2k views

How to handle security updates within Docker containers?

When deploying applications onto servers, there is typically a separation between what the application bundles with itself and what it expects from the platform (operating system and installed ...
0
votes
0answers
200 views

Configure Nginx with multiple lxc containers, virtual hosts and subdomains

I want to use multiple (at least 3) lxc containers running Apache2 on port 80. I want to configure Nginx such that www.mydomain.com serves the content on the host machine while sub1.mydomain.com , ...
0
votes
3answers
453 views

Reverse Proxy Linux Containers

I am trying to set up a reverse proxy on my ubuntu 14.04 host so that I can run multiple websites, each in their own LXC container (one day docker but one step at a time). In this example the ...
0
votes
1answer
119 views

Taskset not working properly in OpenVZ container

In a Debian OpenVZ container, I'm trying to use taskset to pin a process to a core, but it doesn't work: root@foo:/# taskset -c -p 0 1754 pid 1754's current affinity list: 0-7 pid 1754's new affinity ...
0
votes
2answers
369 views

Force an LXC container to use its own IP address

Sorry if this question has already been asked. I could not find it, I have this setup : +---------------------------------------------------------------------------------------------+ |HOST ...
12
votes
2answers
4k views

Linux containers (LXC) on Red Hat/CentOS EL6 - lxc-create versus libvirt?

It's tricky trying to stay within the good graces of Red Hat and still plan for system longevity... I've been a proponent of Linux Containers (LXC) for over a year. My initial installations were ...
1
vote
1answer
67 views

Accessing a container from another container using the public IP of the host

I've some issues configuring properly the network in proxmox. In short, from a container, I can reach any web server outside (ex: google.com), but I can't reach the web server on my container. The ...
0
votes
1answer
75 views

Linux Containers (LXC) : lx-execute and networking

I have a question about LXC Containers. I have some containers, if I lxc-start them, they come up with networking fine, but I want to just be able to run commands against them using lxc-execute, ...
0
votes
1answer
65 views

Read in effective RAM usage on Linux

I'm running some programs on *nix inside of a container and I'm attempting to closely calculate the amount of RAM my process is using. It is my understanding that this information should be under ...
0
votes
1answer
163 views

headless linux server for web serving tasks

I only need to run text-based applications on my server. think LAMP + ssh. It seems unnecessary to install entire distributions, like ubuntu, just to fire up apache and serve up my one web app. ...
6
votes
1answer
488 views

Prevent fork bomb inside docker container

I am currently struggling with limiting number of processes for user which I called sandbox. I configured processes limit inside /etc/security/limits.conf like this: sandbox hard nproc ...
0
votes
1answer
643 views

why docker not executing init as lxc

Docker is not running init. So services are not started during startup. Lxc runs init during lxc-start.Since Docker is using lxc why it is not running init. What are the advantages of not running init ...
3
votes
0answers
79 views

Configuring Container with bridges and vlans (server only?)

I have two groups of lxc contianers on a server and want to isolate their network traffic for security reasons. I will be using port forwarding so the containers much each have separate IP's. I know I ...
1
vote
1answer
287 views

How to list disk space usages of all containers on an OpenVZ server?

I have an OpenVZ server with 46 containers. How do I get a list of all the containers with their corresponding disk usage?
-3
votes
1answer
529 views

dotCloud Docker vs traditional VM [closed]

I am new to Docker. What are the major differences between Docker and traditional VM? Is Docker stable enough for daily use?
1
vote
1answer
150 views

How is Apache 1.3 compressing?

More specifically, I would like suggestions as to how my server is encoding in gzip compressed format. We have once OC4J container that serves gzip transfer encoding, and others do not. Trying to ...
1
vote
2answers
640 views

How to detach a Solaris non-global zone when zoneadm detach is not available?

I have an old Solaris 10U1 that does not have zoneadm detach command. Only the following subcommands are supported: help boot halt ready reboot list verify install uninstall I need this to move ...
0
votes
1answer
195 views

placing war file in the webapps subdirectory of the servlet container’s installation directory

i am trying to install a particular software and it is asking me to place the .war file in the webapps subdirectory of the servlet container's installation directory. I am not sure which location is ...
0
votes
1answer
950 views

OpenVZ Can't initialize containers after install

I have installed OpenVZ on centos 6 on a dedicated server. I followed quick installation guide on openvz wiki. After installing thru yum, I don't know why, but grub.conf wasn't automatically updated ...
1
vote
0answers
170 views

auto add ip to containers using openvz commandline

looking to script some container creation. Is there a way to use the PBAS auto add ip function at the node's command line? Something like this. vzctl set CTID --ipadd AUTO_IP_ADDY --save I could ...
0
votes
1answer
99 views

How To Create User's Virtualization Environment

what i want to do is to create user virtulized environment (online) i want to create an environment that my user connect to my server online & they will have there own online pc .. may be its ...
5
votes
3answers
2k views

Explain in Plain English what is LXC and for what it is useful [closed]

What is LXC? For what it is useful? What are the differences between LXC and common virtualization?
1
vote
2answers
483 views

Isolating websites on a shared host using container solutions

Isolating websites on a single machine from each other the underlying OS (i.e. without using a bare-metal hypervisor such as ESX) can be achieved using "container" technologies, such as: chroot ...
8
votes
3answers
3k views

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 ...
0
votes
2answers
285 views

Encryption container for multiple people

I was just wondering if anyone may have come across a product that would allow for a container based encryption to be used by multiple people, in a Windows Server setup. I wanted to see if there ...
1
vote
4answers
919 views

OpenVZ Host is the source IP address rather than actual web surfers?

I am experiencing something a little bit odd. I'm running OpenZV on a CentOS 5 server. It appears that on containers the source IP address that say Apache webserver sees a request from is the OpenVZ ...
4
votes
7answers
475 views

What's the benefit of using “containers” in the datacenter as opposite to regular installation

I have just seen this video: Google container data center tour What is not quite clear to me is, what's the benefit from placing the servers inside containers?