Questions concerning container in Digital container format, programming, type theory, Operating system-level virtualization, Web container, etc.

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How are snap applications being protected?

How are snap applications being protected when we look at different aspects? Runtime protections? Memory protections? Differences to ordinary processes? Differences to VMs? Storage protections? ...
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23 views

Move phys interface to lxc container

I’m trying to move wlan0 to my LXC(Ubuntu 14.04) container "cn1" In config file I have : lxc.network.type = phys lxc.network.link = wlan2 lxc.network.flags = up lxc.network.name = wifi2 I ...
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31 views

Start a Xenial lxc container on a Trusty machine

I'm having trouble starting a xenial lxc container on my trusty machine. I had no problems installing the container (by following this guide, which also allowed me to create and start some other ...
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0answers
53 views

LXD container disk and block I/O limits. EDIT: Its a zfs pool limit

There is a container running on my system and it is is giving me the (28: No space left on device) error message. I tried to troubleshoot the problem and I see why it probably is complaining: bas@...
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1answer
22 views

How to mount encfs in a LXC container

When trying to mount, I have the following error: container# encfs /toto /mnt EncFS Password: fuse: device not found, try 'modprobe fuse' first fuse failed. Common problems: - fuse kernel module ...
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45 views

Can someone with root access enter in a LXD container and see its contents?

If I have a running LXD container, can someone enter into the mount point and see/access contents of it? I'm seeking for a method for virtualization that prevents this, KVM could be a good choice, ...
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1answer
86 views

Is it possible to install rocket (rkt) in ubuntu?

Is it possible to install rocket rkt (CLI for running app container in linux) in ubuntu? How?I just want to try it out without setting up a virtual machine and installing CoreOs.
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12 views

What are the minimum CPU specifications to run containers?

Apologies if this has been asked before, but what are the minimum CPU specifications to be able to use LXC (or LXD) on 16.04? Can my CPU do so? When I run sudo lshw -C cpu | grep product I get ...
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24 views

container error in juju ok in lxd 'even the latest' version

I get some trouble to deploy container ... i can ssh them in lxc but the unit stay in "STATE DNS:ERROR" juju debug-log show nothing ? thanks in advance JP
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16 views

How can i use lxc instead of vmware/virtualbox to virtualize an older version of ubuntu?

For compatibility reasons, i need to run an older version (14.04).Using vmware/and or virtualbox is both slow (gui part) and has a significant impact on my laptop battery life. Is there an easy way to ...
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11 views

lxc - p2p1 does not come back after lxc-stop

I can start the container, connect to it, networking works, etc. Everything looks ok. But when I stop the container and try to restart it, p2p1 is no more available and restarting fails. When I ...
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1answer
80 views

LXC unprivileged container: apt-get fails to download anything inside

I'm running Ubuntu Xenial and set up simple unprivileged user container from template (also Xenial). When I attach inside and try to just do upgrade or install anything 'apt-get' fails with following ...
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1answer
85 views

Landscape Dedicated Server 15.11: Virtual Machines registering as computers

After upgrading LDS from 15.01 to 15.11, my virtual-machine licensed KVM instances are showing up as registered computers instead of virtual machines. When I try to re-register the machine it also ...
3
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1answer
47 views

Disk usage for the same drive shows 20K in the host and 16G in the container

When comparing the disk usage for a mounted harddrive the usage is completely different when compared between the host and the container. I am running Ubuntu 14.04 on the host and in the lxc container....
2
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3answers
208 views

Where can I find good quality LXD Documentation [closed]

While researching and learning more on Containers Docker seems to have great documentation and use case examples with step by step guides. While on the other hand LXD has just a simple getting started ...
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0answers
46 views

VeraCrypt expander for Ubuntu?

Is there a VeraCrypt expander tool for Ubuntu? I know that there's a tool for Windows, but in Linux, I can't seem to find it in the VeraCrypt menu. I tried to use a Windows binary for the Expander, ...
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1answer
135 views

What images can you store in lxd containers?

What kinds of images can you store in LXD containers ?
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0answers
60 views

LXC Ubuntu container. Hash Sum mismatch

I am installed Ubuntu container (wily) onto Ubuntu host(with wily too) with such command: # lxc-create -t download -n es1 -- --dist ubuntu --release wily --arch amd64 Everything fine, I can ping ...
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72 views

How to make a mounted harddrive available inside an LXC container?

I want to make a mounted hard drive available inside an LXC container for a postgres database. when I run sudo lsblk on the host I can see the hard drive in the following way: NAME ...
0
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1answer
204 views

Do LXC containers have access to PCI components such as PCIe SSDs and GPUs?

Do LXC containers have access to PCI components such as PCIe SSDs and GPUs? Would the drivers need to be installed on the host, guest or both? Do they support exclusive usage by using PCI ...
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0answers
227 views

How can I open an URL with webapp-container on Ubuntu Touch?

I want to access a website using webapp-container on my Ubuntu phone. I've already attempted the answers to this question. But the screen only flashes a little and I get the text below in the terminal ...
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0answers
228 views

Openstack install failed while creating containers

I tried to install openstack in single mode. My server is Ubuntu 14.04.3 LTS : 8 CPU 16Go RAM 160Go disk Running on Vmware workstation 11.1.0 I follow several tutorial (like this one http://ubuntu-...
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155 views

Unable to export MP4 video in Pitivi

Whenever I attempt to export an MP4 video in Pitivi, I notice an exclamation mark next to the container selection, and when I render it nothing happens. How can I fix this?
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1answer
169 views

lxc launch hangs for lxd

New to lxd, and follow the article https://insights.ubuntu.com/2015/04/28/getting-started-with-lxd-the-container-lightervisor/ , also refer the https://github.com/lxc/lxd for upgrading to latest lxd ...
2
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1answer
1k views

Why kernel version doesn't match Ubuntu version in a Docker container?

I have a Docker container built from Ubuntu 14.10. When I log in to the container to check the Ubuntu version and kernel version I see the following: root@~$>> lsb_release -a No LSB modules are ...
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51 views

lxc-ls option flag error - lxc_container: command get_init_pid failed to receive response

I'm trying to use the lxc-ls command to list LXC containers on Ubuntu 12.04, but I'm getting a get_init_pid error whenever I invoke the command with an option flag. Here is an example session: $ sudo ...
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2answers
665 views

lxc-create: bad template: download

I'm running Ubuntu 12.04. According to the Ubuntu Server Guide, there should be a -t download template option for the lxc-create command. However I get the following output: sudo lxc-create -t ...
0
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1answer
710 views

Installing a GUI application in LXD/Docker with a GUI installer

I have an old proprietary software which I need to run on newer distro. I hope containers are the solution. The problem is that the old software installs itself from a GUI application which require ...
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1answer
171 views

Container namespace isn't visible in ip netns list

I wonder why we can't see the namespaces created by lxc-create on the output of "ip netns list" For example I create a namespace like below lxc-create -t download -n cont1 -- -d ubuntu -r trusty -a ...
1
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1answer
711 views

LXC start error : setup_caps: 2337 unknown capability mac_admin

When i try to start the lxc container created it fails with below error, I have used the Ubuntu template for this template. It seems lxc is unable to drop the kernel privileges it is trying to drop, ...
4
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1answer
419 views

How to modify rootfs of an unprivileged LXC container?

I have configured for namespaces for unprivileged LXC containers using this docuement https://help.ubuntu.com/lts/serverguide/lxc.html#lxc-unpriv I can create and start containers using lxc-create ...
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0answers
3k views

LXC container no outgoing traffic with bridged network and public IP address

I try to setup a LXC container with bridged network on ubuntu 14.04.1, but the outgoing traffic seems to be blocked. Ping another IP than the container's one is not working. Actually I tried this with ...
1
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1answer
482 views

Lo interface not coming up on boot (upgrade fom 12LTS to 14LTS, work in container mode)

I am using the Linux container , I upgraded from 12LTS to 14LTS recently, however after upgrade, the lo interface cannot be start automatically, and here is "ip link show" 1: lo: <LOOPBACK> ...
5
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1answer
1k views

Modifying sysctl values inside lxc container

I have made several linux containers using the normal userspace tools (not docker), and I have been setting up a test environment. I want to set up two containers to try out heartbeat, which requires ...
8
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1answer
8k views

How does kernel support swap limit?

When i run docker info command on my ubuntu 13.04 with kernel 3.8.0-19-generic i got a warning no swap limit support How can i solve this? docker info Containers: 10 Images: 37 Driver: aufs ...
1
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1answer
327 views

docker commands related problem

I tried: :~$docker -d [/var/lib/docker|99d07396] +job initapi() [/var/lib/docker|99d07396.initapi()] Creating server mkdir /var/lib/docker/containers: permission denied[/var/lib/docker|99d07396] -...
5
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1answer
2k views

lxc containers hangs after upgrade to 13.10

I have 3 lxc containers. They were all working fine on 12.10 and I upgraded the containers with do-release-upgrade on the containers to 13.04 and 13.10 and that worked great. Then I upgraded the ...
1
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1answer
258 views

LXC: Can I guarantee a certain level of CPU resources to a given container

We're going to use LXC to multi-purpose our hardware while keeping the various applications easy to manage, develop, upgrade, and logically segregated. What I want to know is if I can guarantee ...
2
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1answer
1k views

block outgoing internet calls from inside a container

This question is not similar to my earlier post. This is pretty simple I think, I just don't know enough about networking and the ubuntu firewall. I followed this article and setup a linux container ...
2
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1answer
2k views

debootstrap or virt-install Ubuntu Server Maverick fails

Oki so running any kind of variation of debootsrap i get the following error I: Extracting zlib1g... W: Failure trying to run: chroot /lxc/iso/dodo mount -t proc proc /proc debootstrap.log : ...
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2answers
730 views

How can I fully use the chroot I create with debootstrap on a local machine?

I'm running on a Ubuntu 10.04, and installed an 8.04 version in a directory /stuff/hardy sudo debootstrap --variant buildd --arch i386 hardy /stuff/hardy http://archive.ubuntu.com/ubuntu What I want ...