Re: [lxc-devel] do pid1 and pid2 run in the same network namespace

2011-02-22 Thread Maheswara Reddy C - ERS, HCL Tech
Hi Daniel, We could able to create ten (N) number of namespaces, how can we identify the specified namespace. Shall we use the return value of unshare() , as unique namespace ID ? Thanks Mahesh -Original Message- From: Daniel Lezcano [mailto:daniel.lezc...@free.fr] Sent: Tuesday, Februa

[lxc-devel] Anybody used FUSE in a container?

2011-02-22 Thread Rob Landley
After investigating I don't see any reason sshfs shouldn't work just fine in a container out of the box (all the network stuff happens in userspace), but I can't create the FUSE dev node from within the container because mknod doesn't work from the container's root. I thought the point of linking

[lxc-devel] Anybody looked at unshare(2)?

2011-02-22 Thread Rob Landley
It looks like clone flags aren't the only way to create a new namespace, any existing process can move to a new namespace via unshare(2). This sounds like you could fairly easily make a super_chroot() function that does most of the container stuff. The hard part would be doing mount points, devic

Re: [lxc-devel] Two different (functionality) processes in same namespace

2011-02-22 Thread Greg Kurz
On 02/22/2011 12:47 PM, Maheswara Reddy C - ERS, HCL Tech wrote: > Hi, > Shall I program this way to create 10 namespaces, with each namespace run 2 > different processes or any better way. > > #include > #include > #include > > int main(int argc, char *argv[]) > { > > for(i=0;i<10;i++) >

Re: [lxc-devel] do pid1 and pid2 run in the same network namespace

2011-02-22 Thread Daniel Lezcano
On 02/22/2011 12:22 PM, Maheswara Reddy C - ERS, HCL Tech wrote: >> Then it is quite easy. You just have to fork ten times the routine in the >> program I gave you in the previous email. > Hi Daniel, > > But I want to run two different (fork() run same copy) process/threads in > each namespace,

[lxc-devel] Two different (functionality) processes in same namespace

2011-02-22 Thread Maheswara Reddy C - ERS, HCL Tech
Hi, Shall I program this way to create 10 namespaces, with each namespace run 2 different processes or any better way. #include #include #include int main(int argc, char *argv[]) { for(i=0;i<10;i++) { pid_t pid1[10],pid2[10]; int flag1= CLONE_NEWNS|CLONE_NETNET, flag2=0;

Re: [lxc-devel] do pid1 and pid2 run in the same network namespace

2011-02-22 Thread Maheswara Reddy C - ERS, HCL Tech
>Then it is quite easy. You just have to fork ten times the routine in the >program I gave you in the previous email. Hi Daniel, But I want to run two different (fork() run same copy) process/threads in each namespace, that's why I am using clone() which take function pointer of each proces

Re: [lxc-devel] do pid1 and pid2 run in the same network namespace

2011-02-22 Thread Daniel Lezcano
On 02/22/2011 10:44 AM, Maheswara Reddy C - ERS, HCL Tech wrote: > Hi Daniel, > > I have to create 10 namespaces(network), in each namespace I have to run two > different processes. Then it is quite easy. You just have to fork ten times the routine in the program I gave you in the previous email

Re: [lxc-devel] do pid1 and pid2 run in the same network namespace

2011-02-22 Thread Maheswara Reddy C - ERS, HCL Tech
Hi Daniel, I have to create 10 namespaces(network), in each namespace I have to run two different processes. Thanks Mahesh -Original Message- From: Daniel Lezcano [mailto:daniel.lezc...@free.fr] Sent: Tuesday, February 22, 2011 2:47 PM To: Maheswara Reddy C - ERS, HCL Tech Cc: lxc-devel

Re: [lxc-devel] do pid1 and pid2 run in the same network namespace

2011-02-22 Thread Daniel Lezcano
On 02/22/2011 07:41 AM, Maheswara Reddy C - ERS, HCL Tech wrote: > Hi All, > > > > Does this way both pid1 and pid2 run in the same network namespace? Or please > suggest any other way Mahesh, please tell us what you want to do. If you want to create a new network namespace, it is not mandatory