LXC

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LXC is an operating system-level virtualization method for running multiple isolated Linux systems (containers) on a single control host. LXC provides operating system-level virtualization by providing a virtual environment that has its own process and network space. LXC relies on the Linux kernel cgroups functionality. LXC is similar to other OS-level virtualization technologies on Linux such as OpenVZ and Linux-VServer, as well as those on other operating systems such as FreeBSD.

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I have one docker server called PRIVREG with a private registry on it

I can push and pull to that registry  from the docker  engine on the same box

if I goto another box named DOCKER901I can CURL a list of tags in the remote server with the command

curl http://privreg:5000/v2/ssmith/mybusybox/tags/list at it works fine as exected and returns a list of tags in that repo

but if I attempt to pull one with docker pull http://privreg:5000/v2/ssmith/mybusybox:1.0

i get  the error    Invalid repository name (ex: "registry.domain.tld/myrepos")


this is the same URL why does it error like this?
??

thanks!
0
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I am very familiar with VMs and virtulization. However, I have only heard about Docker (never used it) and would like to grasp the idea and concept.

I understand Docker creates 1 or more individual "worlds" similar to VMs, but uses a lot less resources?
Can you explain more about docker as well as how it is difference from VMs (vmware, Xen, KVM).
1
Hello, I can't found an control panel for docker, for: deploy, create, remove and assign ports to containers.

Anyone can suggest a free or paid one?
0
where and how can I install "govc"?


this is in response to my other question an error I am getting using docker machine

"Error creating machine: exec: "govc": executable file not found in $PATH"
0
I am sure it is something like

docker-machine create --driver --vmwar****????!!!.......................................

what is the exact systax for docker machine to provision to vcenter?????


thanks
0
no real problem here I am just wondering why it says this in the dolphin gui about docker??
kimubuntu-error.PNG
0
docker info command results / docker run -d -m 1500mb nginx resultsam running swarm in "binpack" mode and my first node "ubuntu-Docker1" is clearly out of memory but will not put any contrainers on the other hosts ???

I am not sure why this is , any help would be very appreciated !!!!!!!



a "docker info" shows

Containers :42
Role: Primary
Srategy : BINPACK

nodes :3
ubuntu-docker 1
containers:42
Reserved memory : 2.93GiB / 4.054 Gib

ubuntu-docker2

containers : 0
Reserved memory : 0 B/ 1.019 GiB

when I attempt to run another container I get the errror ""error response from daemon : no resources available to schedule container"

thanks
0
I have heard second hand that you dont want to use the lxc execution driver in docker  do to security issues.

does anyone know exactly why this is ???


thanks
0
When I try to run Docker, I get a problem.  The message is right: a URL is broken.  I know that ubuntu.com is not completely down.  I tested it.  But the URLs in the error log don't work (like the error says).  How do I get Docker to use correct working URLs?  What are the working URLs?

Here is what I try to run:

docker build -t some-content-nginx .

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Here is what I get:

Get:22 http://archive.ubuntu.com trusty-security/universe amd64 Packages [130 kB]
Err http://archive.ubuntu.com raring/main amd64 Packages
  404  Not Found [IP: 91.189.92.200 80]
Err http://archive.ubuntu.com raring/universe amd64 Packages
  404  Not Found [IP: 91.189.92.200 80]
Fetched 20.8 MB in 14s (1403 kB/s)
W: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/raring/main/binary-amd64/Packages  404  Not Found [IP: 91.189.92.200 80]

W: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/raring/universe/binary-amd64/Packages  404  Not Found [IP: 91.189.92.200 80]

E: Some index files failed to download. They have been ignored, or old ones used instead.
INFO[0015] The command [/bin/sh -c apt-get update] returned a non-zero code: 100

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0

LXC

9

Solutions

3

Articles & Videos

17

Contributors

LXC is an operating system-level virtualization method for running multiple isolated Linux systems (containers) on a single control host. LXC provides operating system-level virtualization by providing a virtual environment that has its own process and network space. LXC relies on the Linux kernel cgroups functionality. LXC is similar to other OS-level virtualization technologies on Linux such as OpenVZ and Linux-VServer, as well as those on other operating systems such as FreeBSD.

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