varlink info

The varlinfo info returns the same information as podman info but always includes
the so-called debug information.

Signed-off-by: baude <bbaude@redhat.com>

Closes: #745
Approved by: baude

API.md

@@ -33,6 +33,8 @@ in the [API.md](https://github.com/projectatomic/libpod/blob/master/API.md) file
 
 [func ImportImage(source: string, reference: string, message: string, changes: []string) string](#ImportImage)
 
+[func Info() PodmanInfo](#Info)
+
 [func InspectContainer(name: string) string](#InspectContainer)
 
 [func InspectImage(name: string) string](#InspectImage)
@@ -94,10 +96,20 @@ in the [API.md](https://github.com/projectatomic/libpod/blob/master/API.md) file
 
 [type ImageSearch](#ImageSearch)
 
+[type InfoGraphStatus](#InfoGraphStatus)
+
+[type InfoHost](#InfoHost)
+
+[type InfoPodmanBinary](#InfoPodmanBinary)
+
+[type InfoStore](#InfoStore)
+
 [type ListContainerData](#ListContainerData)
 
 [type NotImplemented](#NotImplemented)
 
+[type PodmanInfo](#PodmanInfo)
+
 [type StringResponse](#StringResponse)
 
 [type Version](#Version)
@@ -225,6 +237,12 @@ history is in the form of an array of ImageHistory structures.  If the image can
 method ImportImage(source: [string](https://godoc.org/builtin#string), reference: [string](https://godoc.org/builtin#string), message: [string](https://godoc.org/builtin#string), changes: [[]string](#[]string)) [string](https://godoc.org/builtin#string)</div>
 ImportImage imports an image from a source (like tarball) into local storage.  The image can have additional
 descriptions added to it using the message and changes options. See also [ExportImage](ExportImage).
+### <a name="Info"></a>func Info
+<div style="background-color: #E8E8E8; padding: 15px; margin: 10px; border-radius: 10px;">
+
+method Info() [PodmanInfo](#PodmanInfo)</div>
+Info returns a [PodmanInfo](#PodmanInfo) struct that describes podman and its host such as storage stats,
+build information of Podman, and system-wide registries.
 ### <a name="InspectContainer"></a>func InspectContainer
 <div style="background-color: #E8E8E8; padding: 15px; margin: 10px; border-radius: 10px;">
 
@@ -555,6 +573,66 @@ is_automated [bool](https://godoc.org/builtin#bool)
 name [string](https://godoc.org/builtin#string)
 
 star_count [int](https://godoc.org/builtin#int)
+### <a name="InfoGraphStatus"></a>type InfoGraphStatus
+
+InfoGraphStatus describes the detailed status of the graphc
+
+backing_filesystem [string](https://godoc.org/builtin#string)
+
+native_overlay_diff [string](https://godoc.org/builtin#string)
+
+supports_d_type [string](https://godoc.org/builtin#string)
+### <a name="InfoHost"></a>type InfoHost
+
+InfoHost describes the host stats portion of PodmanInfo
+
+mem_free [int](https://godoc.org/builtin#int)
+
+mem_total [int](https://godoc.org/builtin#int)
+
+swap_free [int](https://godoc.org/builtin#int)
+
+swap_total [int](https://godoc.org/builtin#int)
+
+arch [string](https://godoc.org/builtin#string)
+
+cpus [int](https://godoc.org/builtin#int)
+
+hostname [string](https://godoc.org/builtin#string)
+
+kernel [string](https://godoc.org/builtin#string)
+
+os [string](https://godoc.org/builtin#string)
+
+uptime [string](https://godoc.org/builtin#string)
+### <a name="InfoPodmanBinary"></a>type InfoPodmanBinary
+
+InfoPodman provides details on the podman binary
+
+compiler [string](https://godoc.org/builtin#string)
+
+go_version [string](https://godoc.org/builtin#string)
+
+podman_version [string](https://godoc.org/builtin#string)
+
+git_commit [string](https://godoc.org/builtin#string)
+### <a name="InfoStore"></a>type InfoStore
+
+InfoStore describes the host's storage informatoin
+
+containers [int](https://godoc.org/builtin#int)
+
+images [int](https://godoc.org/builtin#int)
+
+graph_driver_name [string](https://godoc.org/builtin#string)
+
+graph_driver_options [string](https://godoc.org/builtin#string)
+
+graph_root [string](https://godoc.org/builtin#string)
+
+graph_status [InfoGraphStatus](#InfoGraphStatus)
+
+run_root [string](https://godoc.org/builtin#string)
 ### <a name="ListContainerData"></a>type ListContainerData
 
 ListContainer is the returned struct for an individual container
@@ -593,6 +671,19 @@ namespaces [ContainerNameSpace](#ContainerNameSpace)
 
 
 comment [string](https://godoc.org/builtin#string)
+### <a name="PodmanInfo"></a>type PodmanInfo
+
+PodmanInfo describes the Podman host and build
+
+host [InfoHost](#InfoHost)
+
+registries [[]string](#[]string)
+
+insecure_registries [[]string](#[]string)
+
+store [InfoStore](#InfoStore)
+
+podman [InfoPodmanBinary](#InfoPodmanBinary)
 ### <a name="StringResponse"></a>type StringResponse
 
 

cmd/podman/varlink/io.projectatomic.podman.varlink

@@ -124,6 +124,55 @@ type ContainerNameSpace (
     ipc: string
 )
 
+# InfoHost describes the host stats portion of PodmanInfo
+type InfoHost (
+    mem_free: int,
+    mem_total: int,
+    swap_free: int,
+    swap_total: int,
+    arch: string,
+    cpus: int,
+    hostname: string,
+    kernel: string,
+    os: string,
+    uptime: string
+)
+
+# InfoGraphStatus describes the detailed status of the graph
+type InfoGraphStatus (
+    backing_filesystem: string,
+    native_overlay_diff: string,
+    supports_d_type: string
+)
+
+# InfoStore describes the host's storage informatoin
+type InfoStore (
+    containers: int,
+    images: int,
+    graph_driver_name: string,
+    graph_driver_options: string,
+    graph_root: string,
+    graph_status: InfoGraphStatus,
+    run_root: string
+)
+
+# InfoPodman provides details on the podman binary
+type InfoPodmanBinary (
+    compiler: string,
+    go_version: string,
+    podman_version: string,
+    git_commit: string
+)
+
+# PodmanInfo describes the Podman host and build
+type PodmanInfo (
+    host: InfoHost,
+    registries: []string,
+    insecure_registries: []string,
+    store: InfoStore,
+    podman: InfoPodmanBinary
+)
+
 # Ping provides a response for developers to ensure their varlink setup is working.
 # #### Example
 # ~~~
@@ -140,6 +189,9 @@ method Ping() -> (ping: StringResponse)
 # system.
 method GetVersion() -> (version: Version)
 
+# GetInfo returns a [PodmanInfo](#PodmanInfo) struct that describes podman and its host such as storage stats,
+# build information of Podman, and system-wide registries.
+method GetInfo() -> (info: PodmanInfo)
 
 # ListContainers returns a list of containers in no particular order.  There are
 # returned as an array of ListContainerData structs.  See also [GetContainer](#GetContainer).

pkg/varlinkapi/system.go

@@ -1,6 +1,10 @@
 package varlinkapi
 
 import (
+	goruntime "runtime"
+	"strings"
+
+	"github.com/projectatomic/libpod/cmd/podman/libpodruntime"
 	"github.com/projectatomic/libpod/cmd/podman/varlink"
 	"github.com/projectatomic/libpod/libpod"
 )
@@ -28,3 +32,56 @@ func (i *LibpodAPI) Ping(call ioprojectatomicpodman.VarlinkCall) error {
 		Message: "OK",
 	})
 }
+
+// GetInfo returns details about the podman host and its stores
+func (i *LibpodAPI) GetInfo(call ioprojectatomicpodman.VarlinkCall) error {
+	podmanInfo := ioprojectatomicpodman.PodmanInfo{}
+	runtime, err := libpodruntime.GetRuntime(i.Cli)
+	if err != nil {
+		return call.ReplyRuntimeError(err.Error())
+	}
+	info, err := runtime.Info()
+	if err != nil {
+		return call.ReplyErrorOccurred(err.Error())
+	}
+	host := info[0].Data
+	infoHost := ioprojectatomicpodman.InfoHost{
+		Mem_free:  host["MemFree"].(int64),
+		Mem_total: host["MemTotal"].(int64),
+		Swap_free: host["SwapFree"].(int64),
+		Arch:      host["arch"].(string),
+		Cpus:      int64(host["cpus"].(int)),
+		Hostname:  host["hostname"].(string),
+		Kernel:    host["kernel"].(string),
+		Os:        host["os"].(string),
+		Uptime:    host["uptime"].(string),
+	}
+	podmanInfo.Host = infoHost
+	store := info[1].Data
+	pmaninfo := ioprojectatomicpodman.InfoPodmanBinary{
+		Compiler:   goruntime.Compiler,
+		Go_version: goruntime.Version(),
+		// TODO : How are we going to get this here?
+		//Podman_version:
+		Git_commit: libpod.GitCommit,
+	}
+
+	graphStatus := ioprojectatomicpodman.InfoGraphStatus{
+		Backing_filesystem:  store["GraphStatus"].(map[string]string)["Backing Filesystem"],
+		Native_overlay_diff: store["GraphStatus"].(map[string]string)["Native Overlay Diff"],
+		Supports_d_type:     store["GraphStatus"].(map[string]string)["Supports d_type"],
+	}
+	infoStore := ioprojectatomicpodman.InfoStore{
+		Graph_driver_name:    store["GraphDriverName"].(string),
+		Containers:           int64(store["ContainerStore"].(map[string]interface{})["number"].(int)),
+		Images:               int64(store["ImageStore"].(map[string]interface{})["number"].(int)),
+		Run_root:             store["RunRoot"].(string),
+		Graph_root:           store["GraphRoot"].(string),
+		Graph_driver_options: strings.Join(store["GraphOptions"].([]string), ", "),
+		Graph_status:         graphStatus,
+	}
+
+	podmanInfo.Store = infoStore
+	podmanInfo.Podman = pmaninfo
+	return call.ReplyGetInfo(podmanInfo)
+}