» LXC Driver
Name: lxc
The lxc driver provides an interface for using LXC for running application
containers.
Experimental! Currently, the LXC driver supports launching containers via templates but only supports host networking. If both an LXC image and the host it is run on use upstart or systemd, shutdown signals may be passed from the container to the host.
LXC is only enabled in the special linux_amd64_lxc build of Nomad because
it links to the liblxc system library. Use the lxc build tag if compiling
Nomad yourself.
» Task Configuration
task "busybox" {
driver = "lxc"
config {
log_level = "trace"
verbosity = "verbose"
template = "/usr/share/lxc/templates/lxc-busybox"
}
}
The lxc driver supports the following configuration in the job spec:
template- The LXC template to run.config { template = "/usr/share/lxc/templates/lxc-alpine" }log_level- (Optional) LXC library's logging level. Defaults toerror. Must be one oftrace,debug,info,warn, orerror.config { log_level = "debug" }verbosity- (Optional) Enables extra verbosity in the LXC library's logging. Defaults toquiet. Must be one ofquietorverbose.config { verbosity = "quiet" }
» Networking
Currently the lxc driver only supports host networking. See the none
networking type in the lxc.container.conf manual for more
information.
» Client Requirements
The lxc driver requires the following:
- 64-bit Linux host
- The
linux_amd64_lxcNomad binary liblxcto be installedlxc-templatesto be installed
» Client Configuration
lxc.enable- Thelxcdriver may be disabled on hosts by setting this [client configuration][/docs/agent/configuration/client.html##options-parameters] option tofalse(defaults totrue).
» Client Attributes
The lxc driver will set the following client attributes:
driver.lxc- Set to1if LXC is found and enabled on the host node.driver.lxc.version- Version oflxce.g.:1.1.0.
» Resource Isolation
This driver supports CPU and memory isolation via the lxc library. Network
isolation is not supported as of now.