mirror of
https://github.com/linuxkit/linuxkit.git
synced 2025-07-29 21:42:39 +00:00
docs: Update packet documentation
Signed-off-by: Rolf Neugebauer <rolf.neugebauer@docker.com>
This commit is contained in:
Rolf Neugebauer
parent
04a689fcc4
commit
df7c79fa8f
@ -18,64 +18,81 @@ is a work in progress.
|
||||
[Type 1]:https://www.packet.net/bare-metal/servers/type-1/
|
||||
[Type 2A]:https://www.packet.net/bare-metal/servers/type-2a/
|
||||
|
||||
The `linuxkit run packet` command can mostly either be configured via
|
||||
command line options or with environment variables. see `linuxkit run
|
||||
packet --help` for the options and environment variables.
|
||||
|
||||
## Boot
|
||||
|
||||
Build an image with `moby build`. The [packet.yml](https://github.com/vielmetti/linuxkit/blob/master/examples/packet.yml)
|
||||
example file provides a suitable template to start from.
|
||||
|
||||
Linuxkit on Packet [boots via iPXE]. This requires that you have
|
||||
an HTTP server on which you can store your images. At the moment
|
||||
there is no equivalent to "linuxkit push" to upload these images,
|
||||
so you will have to host them yourself. The images can be served
|
||||
from any HTTP server, though in the interest of performance you may
|
||||
want to locate those images near the data center that you're booting in.
|
||||
|
||||
[boots via iPXE]:https://help.packet.net/technical/infrastructure/custom-ipxe
|
||||
LinuxKit on Packet boots the `kernel+initrd` output from moby
|
||||
via
|
||||
[iPXE](https://help.packet.net/technical/infrastructure/custom-ipxe). iPXE
|
||||
booting requires a HTTP server on which you can store your images. At
|
||||
the moment there is no builtin support for this, although we are
|
||||
working on this too.
|
||||
|
||||
Servers take several minutes to provision. During this time their
|
||||
state can be seen from the Packet console.
|
||||
A simple way to host files is via a simple local http server written in Go, e.g.:
|
||||
|
||||
```Go
|
||||
package main
|
||||
|
||||
import (
|
||||
"log"
|
||||
"net/http"
|
||||
)
|
||||
|
||||
func main() {
|
||||
// Simple static webserver:
|
||||
log.Fatal(http.ListenAndServe(":8080", http.FileServer(http.Dir("."))))
|
||||
}
|
||||
```
|
||||
$ linuxkit run packet --help
|
||||
USAGE: linuxkit run packet [options] [name]
|
||||
|
||||
Options:
|
||||
and then `go run` this in the directory with the `kernel+initrd`.
|
||||
|
||||
The web server must be accessible from Packet. You can either run the
|
||||
server on another Packet machine, or use tools
|
||||
like [ngrok](https://ngrok.com/) to make it accessible via a reverse
|
||||
proxy.
|
||||
|
||||
You then specify the location of your http server using the
|
||||
`-base-url` command line option. For example, to boot the
|
||||
toplevel [linuxkit.yml](../linuxkit.yml) example:
|
||||
|
||||
```sh
|
||||
moby build linuxkit.yml
|
||||
# run the web server
|
||||
# run 'ngrok http 8080' in another window
|
||||
PACKET_API_KEY=<API key> linuxkit run packet -base-url http://9b828514.ngrok.io -project-id <Project ID> linuxkit
|
||||
```
|
||||
|
||||
**Note**: It may take several minutes to deploy a new server. If you
|
||||
are attached to the console, you should see the BIOS and the boot
|
||||
messages.
|
||||
|
||||
|
||||
-api-key string
|
||||
Packet API key
|
||||
-base-url string
|
||||
Base URL that the kernel and initrd are served from.
|
||||
-hostname string
|
||||
Hostname of new instance (default "moby")
|
||||
-img-name string
|
||||
Overrides the prefix used to identify the files. Defaults to [name]
|
||||
-machine string
|
||||
Packet Machine Type (default "baremetal_0")
|
||||
-project-id string
|
||||
Packet Project ID
|
||||
-zone string
|
||||
Packet Zone (default "ams1")
|
||||
```
|
||||
## Console
|
||||
|
||||
If your LinuxKit system does not include an ssh or remote console
|
||||
application, you can still connect to it via the Packet SOS ("Serial over SSH")
|
||||
console. See https://help.packet.net/technical/networking/sos-rescue-mode
|
||||
for details on that mode.
|
||||
By default, `linuxkit run packet ...` will connect to the
|
||||
Packet
|
||||
[SOS ("Serial over SSH") console](https://help.packet.net/technical/networking/sos-rescue-mode). This
|
||||
requires `ssh` access, i.e., you must have uploaded your SSH keys to
|
||||
Packet beforehand.
|
||||
|
||||
**Note**: We also require that the Packet SOS host is in your
|
||||
`known_hosts` file, otherwise the connection to the console will
|
||||
fail. There is a Packet SOS host per zone.
|
||||
|
||||
You can disable the serial console access with the `-console=false`
|
||||
command line option.
|
||||
|
||||
|
||||
## Disks
|
||||
|
||||
At this moment the Linuxkit server boots from RAM, with no persistent
|
||||
storage and there is no code that mounts disks. As a result,
|
||||
when the Linuxkit image reboots, all is lost.
|
||||
storage. We are working on adding persistent storage support on Packet.
|
||||
|
||||
Packet supports a [persistent iPXE] mode through its API
|
||||
which would allow a server to come back up after a reboot
|
||||
and re-start the PXE process. This is great for testing your
|
||||
provisioning scripts. This is not yet available directly
|
||||
through Linuxkit.
|
||||
|
||||
[persistent iPXE]:https://help.packet.net/technical/infrastructure/custom-ipxe
|
||||
|
||||
## Networking
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user