A systemd unit for ucarp
In Fedora 17 there are still a number of services that either have not
been ported over to
systemd or that do not take full advantage of
systemd. I've been investigating some IP failover solutions
recently, including ucarp, which includes only a System-V style
I've created a template ...read more
Running dhcpcd under LXC
I've been working with Arch Linux recently, which uses dhcpcd
as its default DHCP agent. If you try booting Arch inside an LXC
container, you will find that
dhcpcd is unable to configure your
network interfaces. Running it by hand you will first see the
# dhcpcd eth0 dhcpcd ...
How do I LXC console?
It took me an unreasonably long time to boot an LXC container with working console access. For the record:
When you boot an LXC container, the console appears to be attached to
pts device. For example, when booting with the console attached to
your current terminal:
# lxc-start -n node0 ...
Cleaning up LXC cgroups
I spent some time today looking at systemd (44) under Fedora (17).
When stopping an LXC container using
lxc-stop, I would always
encounter this problem:
# lxc-stop -n node0 lxc-start: Device or resource busy - failed to remove cgroup '/sys/fs/cgroup/systemd/node0
This prevents one from starting a new container ...read more
Systemd and the case of the missing network
I was intrigued by this post on socket activated containers with
systemd. The basic premise is:
systemdopens a socket on the host and listens for connections.
- When a client connections,
systemdspawns a new container.
- The host
systemdpasses the connected socket to the container
- Services in the ...