2017-07-17 13:48:22 +00:00
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% kpod(1) kpod - Simple management tool for pods and images
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2016-12-02 15:15:15 +00:00
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% Dan Walsh
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2017-07-17 13:48:22 +00:00
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# kpod "1" "September 2016" "kpod"
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## NAME
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kpod - Simple management tool for containers and images
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2016-12-02 15:15:15 +00:00
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2017-07-17 13:48:22 +00:00
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## SYNOPSIS
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**kpod** [*options*] COMMAND
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# DESCRIPTION
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kpod is a simple client only tool to help with debugging issues when daemons
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such as CRI runtime and the kubelet are not responding or failing. A shared API
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layer could be created to share code between the daemon and kpod. kpod does not
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require any daemon running. kpod utilizes the same underlying components that
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2017-05-12 13:36:15 +00:00
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crio uses i.e. containers/image, container/storage, oci-runtime-tool/generate,
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runc or any other OCI compatible runtime. kpod shares state with crio and so
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has the capability to debug pods/images created by crio.
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**kpod [GLOBAL OPTIONS]**
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## GLOBAL OPTIONS
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**--help, -h**
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Print usage statement
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2017-08-10 17:58:29 +00:00
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**--config value, -c**=**"config.file"**
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Path of a config file detailing container server configuration options
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**--debug**
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Print debugging information
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**--root**=**value**
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Path to the root directory in which data, including images, is stored
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**--runroot**=**value**
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Path to the 'run directory' where all state information is stored
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2017-08-14 17:30:24 +00:00
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**--runtime**=**value**
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Path to the OCI compatible binary used to run containers
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**--storage-driver, -s**=**value**
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Select which storage driver is used to manage storage of images and containers (default is overlay)
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**--storage-opt**=**value**
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Used to pass an option to the storage driver
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**--version, -v**
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Print the version
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2017-07-17 13:48:22 +00:00
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## COMMANDS
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2017-08-13 10:35:20 +00:00
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### diff
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Inspect changes on a container or image's filesystem
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### export
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Export container's filesystem contents as a tar archive
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### history
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Shows the history of an image
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### images
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List images in local storage
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### info
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Displays system information
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### inspect
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Display a container or image's configuration
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### load
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Load an image from docker archive
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### logs
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Display the logs of a container
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### mount
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Mount a working container's root filesystem
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### ps
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Prints out information about containers
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### pull
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Pull an image from a registry
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### push
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Push an image from local storage to elsewhere
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### rename
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Rename a container
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### rm
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Remove one or more containers
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### rmi
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Removes one or more locally stored images
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### save
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Save an image to docker-archive or oci
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### stats
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Display a live stream of one or more containers' resource usage statistics
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### tag
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Add an additional name to a local image
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### umount
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Unmount a working container's root file system
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### version
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Display the version information
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kpod: info subcommand
Design: The output of the `info` subcommand ought to be directly
consumable in a format like JSON or yaml.
The structure being a map of sorts.
Each subsection of information being an individual cluster under the
top-level, like platform info, debug, storage, etc.
Even if there are errors under the top level key, the value will be a
map with the key of "error" and the value as the message of the
`err.Error()`. In this way, the command always returns usable output.
Ideally there will be a means for anything that can register info to do
so independently from it being in the single info.go, so this approach
is having a typed signature for the function that gives info, but i'm
sure it could be better.
Current iteration of this outputs the following as a limited user:
```yaml
host:
MemFree: 711307264
MemTotal: 2096222208
SwapFree: 2147479552
SwapTotal: 2147479552
arch: amd64
cpus: 1
os: linux
store:
error: 'mkdir /var/run/containers/storage: permission denied'
```
and as root (`sudo kpod info -D`):
```yaml
debug:
compiler: gc
go version: go1.7.6
goroutines: 3
host:
MemFree: 717795328
MemTotal: 2096222208
SwapFree: 2147479552
SwapTotal: 2147479552
arch: amd64
cpus: 1
os: linux
store:
ContainerStore:
number: 1
GraphDriverName: overlay2
GraphRoot: /var/lib/containers/storage
ImageStore:
number: 1
```
And with the `--json --debug` flag:
```json
{
"debug": {
"compiler": "gc",
"go version": "go1.7.6",
"goroutines": 3
},
"host": {
"MemFree": 709402624,
"MemTotal": 2096222208,
"SwapFree": 2147479552,
"SwapTotal": 2147479552,
"arch": "amd64",
"cpus": 1,
"os": "linux"
},
"store": {
"ContainerStore": {
"number": 1
},
"GraphDriverName": "overlay2",
"GraphRoot": "/var/lib/containers/storage",
"ImageStore": {
"number": 1
}
}
}
```
Signed-off-by: Vincent Batts <vbatts@hashbangbash.com>
2017-07-13 13:11:36 +00:00
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2017-07-17 13:48:22 +00:00
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## SEE ALSO
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crio(8), crio.conf(5)
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2016-12-02 15:15:15 +00:00
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2017-07-17 13:48:22 +00:00
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## HISTORY
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2016-12-02 15:15:15 +00:00
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Dec 2016, Originally compiled by Dan Walsh <dwalsh@redhat.com>
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