Re: [Lxc-users] Networking between host and container
On Fri, Dec 28, 2012 at 1:57 PM, Stéphane Graber stgra...@ubuntu.comwrote: On 12/28/2012 01:20 PM, Marko Anastasov wrote: On Dec 28, 2012, at 11:47 , Stéphane Graber stgra...@ubuntu.com wrote: On 12/28/2012 10:27 AM, Marko Anastasov wrote: Hello, What is the best way to broadcast container's hostname to host? I want to be able to ssh from host into the container using its hostname as handle, instead of an IP address. I'm using the default template in Ubuntu 12.04. I have made a container template that I want to reuse. My first attempt was to install avahi-daemon on host and container, replace hostname in container config, fstab, /etc/hosts, /etc/hostname and dhclient.conf with some unique id. This worked in VirtualBox, but for some reason not on a real machine. Thanks, Marko Not exactly an answer to your question, but should be an answer to your problem anyway: http://www.stgraber.org/2012/07/17/easily-ssh-to-your-containers-and-vms-on-ubuntu-12-04-lts/ Hi Stéphane, I should note that I'm working with a server installation of 12.04, and packages dnsmasq and resolvconf are actually not installed by default. I've added them but I'm not sure what's next. So I think I'm missing some configuration that you assume on your blog. LXC in Ubuntu comes with dnsmasq-base and resolvconf was introduced by default by me in Ubuntu 12.04, so you have it for sure or you're not using a supported Ubuntu installation (resolvconf is part of ubuntu-minimal). Eg output of host $(echo %h | sed s/\\.lxc//g) 10.0.3.1 is Using domain server: Name: 10.0.3.1 Address: 10.0.3.1#53 Aliases: Host %h not found: 3(NXDOMAIN) That's because once put in your ssh config, the %h will be replaced by the name of your container. Try host container name 10.0.3.1, that'll return the IP address of your container as long as it's using DHCP for its IP configuration. Thanks for your help Stéphane. This all works. A quick recap: - no additional packages aside from dnsmasq-base and resolvconf on host are needed - host container-name 10.0.3.1 is a way of getting the container's IP address; Stéphane's blog post shows a clever way of using that in ssh config to address containers by their name I guess the next step forward would be to have the container name resolveable as a network name system-wide (again, having more knowledge about the networking stack would help). For my purposes it isn't absolutely necessary though. Marko -- Master Visual Studio, SharePoint, SQL, ASP.NET, C# 2012, HTML5, CSS, MVC, Windows 8 Apps, JavaScript and much more. Keep your skills current with LearnDevNow - 3,200 step-by-step video tutorials by Microsoft MVPs and experts. SALE $99.99 this month only -- learn more at: http://p.sf.net/sfu/learnmore_122912___ Lxc-users mailing list Lxc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/lxc-users
[Lxc-users] Networking between host and container
Hello, What is the best way to broadcast container's hostname to host? I want to be able to ssh from host into the container using its hostname as handle, instead of an IP address. I'm using the default template in Ubuntu 12.04. I have made a container template that I want to reuse. My first attempt was to install avahi-daemon on host and container, replace hostname in container config, fstab, /etc/hosts, /etc/hostname and dhclient.conf with some unique id. This worked in VirtualBox, but for some reason not on a real machine. Thanks, Marko -- Master HTML5, CSS3, ASP.NET, MVC, AJAX, Knockout.js, Web API and much more. Get web development skills now with LearnDevNow - 350+ hours of step-by-step video tutorials by Microsoft MVPs and experts. SALE $99.99 this month only -- learn more at: http://p.sf.net/sfu/learnmore_122812 ___ Lxc-users mailing list Lxc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/lxc-users
Re: [Lxc-users] Networking between host and container
On 12/28/2012 10:27 AM, Marko Anastasov wrote: Hello, What is the best way to broadcast container's hostname to host? I want to be able to ssh from host into the container using its hostname as handle, instead of an IP address. I'm using the default template in Ubuntu 12.04. I have made a container template that I want to reuse. My first attempt was to install avahi-daemon on host and container, replace hostname in container config, fstab, /etc/hosts, /etc/hostname and dhclient.conf with some unique id. This worked in VirtualBox, but for some reason not on a real machine. Thanks, Marko Not exactly an answer to your question, but should be an answer to your problem anyway: http://www.stgraber.org/2012/07/17/easily-ssh-to-your-containers-and-vms-on-ubuntu-12-04-lts/ -- Stéphane Graber Ubuntu developer http://www.ubuntu.com signature.asc Description: OpenPGP digital signature -- Master HTML5, CSS3, ASP.NET, MVC, AJAX, Knockout.js, Web API and much more. Get web development skills now with LearnDevNow - 350+ hours of step-by-step video tutorials by Microsoft MVPs and experts. SALE $99.99 this month only -- learn more at: http://p.sf.net/sfu/learnmore_122812___ Lxc-users mailing list Lxc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/lxc-users
Re: [Lxc-users] Networking between host and container
What is the best way to broadcast container's hostname to host? I want to be able to ssh from host into the container using its hostname as handle, instead of an IP address. I'm using the default template in Ubuntu 12.04. I have made a container template that I want to reuse. My setup uses the container name as its handle. If I create a container like this: cd /var/lib/lxc mkdir test /usr/lib/lxc/templates/lxc-debian-box -n test -p /var/lib/lxc/test I can access it with: ssh r...@test.freedom.box Maybe this is what you want? My setup uses dnsmasq to do some DHCP/DNS magic. Wrote an article about my setup: http://freedomboxblog.nl/installing-lxc-dhcp-and-dns-on-my-freedombox/ Rob. http://freedomboxblog.nl -- Master HTML5, CSS3, ASP.NET, MVC, AJAX, Knockout.js, Web API and much more. Get web development skills now with LearnDevNow - 350+ hours of step-by-step video tutorials by Microsoft MVPs and experts. SALE $99.99 this month only -- learn more at: http://p.sf.net/sfu/learnmore_122812 ___ Lxc-users mailing list Lxc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/lxc-users
Re: [Lxc-users] Networking between host and container
On Dec 28, 2012, at 11:47 , Stéphane Graber stgra...@ubuntu.com wrote: On 12/28/2012 10:27 AM, Marko Anastasov wrote: Hello, What is the best way to broadcast container's hostname to host? I want to be able to ssh from host into the container using its hostname as handle, instead of an IP address. I'm using the default template in Ubuntu 12.04. I have made a container template that I want to reuse. My first attempt was to install avahi-daemon on host and container, replace hostname in container config, fstab, /etc/hosts, /etc/hostname and dhclient.conf with some unique id. This worked in VirtualBox, but for some reason not on a real machine. Thanks, Marko Not exactly an answer to your question, but should be an answer to your problem anyway: http://www.stgraber.org/2012/07/17/easily-ssh-to-your-containers-and-vms-on-ubuntu-12-04-lts/ Hi Stéphane, I should note that I'm working with a server installation of 12.04, and packages dnsmasq and resolvconf are actually not installed by default. I've added them but I'm not sure what's next. So I think I'm missing some configuration that you assume on your blog. Eg output of host $(echo %h | sed s/\\.lxc//g) 10.0.3.1 is Using domain server: Name: 10.0.3.1 Address: 10.0.3.1#53 Aliases: Host %h not found: 3(NXDOMAIN) Thanks, Marko -- Master HTML5, CSS3, ASP.NET, MVC, AJAX, Knockout.js, Web API and much more. Get web development skills now with LearnDevNow - 350+ hours of step-by-step video tutorials by Microsoft MVPs and experts. SALE $99.99 this month only -- learn more at: http://p.sf.net/sfu/learnmore_122812 ___ Lxc-users mailing list Lxc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/lxc-users
Re: [Lxc-users] Networking between host and container
On Dec 28, 2012, at 13:07 , Rob van der Hoeven robvanderhoe...@ziggo.nl wrote: What is the best way to broadcast container's hostname to host? I want to be able to ssh from host into the container using its hostname as handle, instead of an IP address. I'm using the default template in Ubuntu 12.04. I have made a container template that I want to reuse. My setup uses the container name as its handle. If I create a container like this: cd /var/lib/lxc mkdir test /usr/lib/lxc/templates/lxc-debian-box -n test -p /var/lib/lxc/test I can access it with: ssh r...@test.freedom.box Maybe this is what you want? My setup uses dnsmasq to do some DHCP/DNS magic. Wrote an article about my setup: http://freedomboxblog.nl/installing-lxc-dhcp-and-dns-on-my-freedombox/ Hi Rob, Yes that's exactly the setup I want. If nothing I'll try to extrapolate what you're doing on Debian with what's available on Ubuntu. Thanks for sharing, Marko -- Master HTML5, CSS3, ASP.NET, MVC, AJAX, Knockout.js, Web API and much more. Get web development skills now with LearnDevNow - 350+ hours of step-by-step video tutorials by Microsoft MVPs and experts. SALE $99.99 this month only -- learn more at: http://p.sf.net/sfu/learnmore_122812 ___ Lxc-users mailing list Lxc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/lxc-users
Re: [Lxc-users] Networking between host and container
On 12/28/2012 01:20 PM, Marko Anastasov wrote: On Dec 28, 2012, at 11:47 , Stéphane Graber stgra...@ubuntu.com wrote: On 12/28/2012 10:27 AM, Marko Anastasov wrote: Hello, What is the best way to broadcast container's hostname to host? I want to be able to ssh from host into the container using its hostname as handle, instead of an IP address. I'm using the default template in Ubuntu 12.04. I have made a container template that I want to reuse. My first attempt was to install avahi-daemon on host and container, replace hostname in container config, fstab, /etc/hosts, /etc/hostname and dhclient.conf with some unique id. This worked in VirtualBox, but for some reason not on a real machine. Thanks, Marko Not exactly an answer to your question, but should be an answer to your problem anyway: http://www.stgraber.org/2012/07/17/easily-ssh-to-your-containers-and-vms-on-ubuntu-12-04-lts/ Hi Stéphane, I should note that I'm working with a server installation of 12.04, and packages dnsmasq and resolvconf are actually not installed by default. I've added them but I'm not sure what's next. So I think I'm missing some configuration that you assume on your blog. LXC in Ubuntu comes with dnsmasq-base and resolvconf was introduced by default by me in Ubuntu 12.04, so you have it for sure or you're not using a supported Ubuntu installation (resolvconf is part of ubuntu-minimal). Eg output of host $(echo %h | sed s/\\.lxc//g) 10.0.3.1 is Using domain server: Name: 10.0.3.1 Address: 10.0.3.1#53 Aliases: Host %h not found: 3(NXDOMAIN) That's because once put in your ssh config, the %h will be replaced by the name of your container. Try host container name 10.0.3.1, that'll return the IP address of your container as long as it's using DHCP for its IP configuration. Thanks, Marko -- Stéphane Graber Ubuntu developer http://www.ubuntu.com signature.asc Description: OpenPGP digital signature -- Master HTML5, CSS3, ASP.NET, MVC, AJAX, Knockout.js, Web API and much more. Get web development skills now with LearnDevNow - 350+ hours of step-by-step video tutorials by Microsoft MVPs and experts. SALE $99.99 this month only -- learn more at: http://p.sf.net/sfu/learnmore_122812___ Lxc-users mailing list Lxc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/lxc-users
