libpod: Podman info output more network information

docs/source/markdown/podman-info.1.md

@@ -77,6 +77,20 @@ host:
   logDriver: journald
   memFree: 1833385984
   memTotal: 16401895424
+  networkBackend: cni
+  networkBackendInfo:
+    backend: cni
+    dns:
+      package: podman-plugins-3.4.4-1.fc34.x86_64
+      path: /usr/libexec/cni/dnsname
+      version: |-
+        CNI dnsname plugin
+        version: 1.3.1
+        commit: unknown
+    package: |-
+      containernetworking-plugins-1.0.1-1.fc34.x86_64
+      podman-plugins-3.4.4-1.fc34.x86_64
+    path: /usr/libexec/cni
   ociRuntime:
     name: crun
     package: crun-1.0-1.fc34.x86_64
@@ -220,6 +234,17 @@ $ podman info --format json
     "logDriver": "journald",
     "memFree": 1785753600,
     "memTotal": 16401895424,
+    "networkBackend": "cni",
+    "networkBackendInfo": {
+      "backend": "cni",
+      "package": "containernetworking-plugins-1.0.1-1.fc34.x86_64\npodman-plugins-3.4.4-1.fc34.x86_64",
+      "path": "/usr/libexec/cni",
+      "dns": {
+        "version": "CNI dnsname plugin\nversion: 1.3.1\ncommit: unknown",
+        "package": "podman-plugins-3.4.4-1.fc34.x86_64",
+        "path": "/usr/libexec/cni/dnsname"
+      }
+    },
     "ociRuntime": {
       "name": "crun",
       "package": "crun-1.0-1.fc34.x86_64",

libpod/define/info.go

@@ -1,6 +1,7 @@
 package define
 
 import (
+	"github.com/containers/common/libnetwork/types"
 	"github.com/containers/storage/pkg/idtools"
 )
 
@@ -27,27 +28,28 @@ type SecurityInfo struct {
 
 // HostInfo describes the libpod host
 type HostInfo struct {
-	Arch              string           `json:"arch"`
-	BuildahVersion    string           `json:"buildahVersion"`
-	CgroupManager     string           `json:"cgroupManager"`
-	CgroupsVersion    string           `json:"cgroupVersion"`
-	CgroupControllers []string         `json:"cgroupControllers"`
-	Conmon            *ConmonInfo      `json:"conmon"`
-	CPUs              int              `json:"cpus"`
-	CPUUtilization    *CPUUsage        `json:"cpuUtilization"`
-	DatabaseBackend   string           `json:"databaseBackend"`
-	Distribution      DistributionInfo `json:"distribution"`
-	EventLogger       string           `json:"eventLogger"`
-	FreeLocks         *uint32          `json:"freeLocks,omitempty"`
-	Hostname          string           `json:"hostname"`
-	IDMappings        IDMappings       `json:"idMappings,omitempty"`
-	Kernel            string           `json:"kernel"`
-	LogDriver         string           `json:"logDriver"`
-	MemFree           int64            `json:"memFree"`
-	MemTotal          int64            `json:"memTotal"`
-	NetworkBackend    string           `json:"networkBackend"`
-	OCIRuntime        *OCIRuntimeInfo  `json:"ociRuntime"`
-	OS                string           `json:"os"`
+	Arch               string            `json:"arch"`
+	BuildahVersion     string            `json:"buildahVersion"`
+	CgroupManager      string            `json:"cgroupManager"`
+	CgroupsVersion     string            `json:"cgroupVersion"`
+	CgroupControllers  []string          `json:"cgroupControllers"`
+	Conmon             *ConmonInfo       `json:"conmon"`
+	CPUs               int               `json:"cpus"`
+	CPUUtilization     *CPUUsage         `json:"cpuUtilization"`
+	DatabaseBackend    string            `json:"databaseBackend"`
+	Distribution       DistributionInfo  `json:"distribution"`
+	EventLogger        string            `json:"eventLogger"`
+	FreeLocks          *uint32           `json:"freeLocks,omitempty"`
+	Hostname           string            `json:"hostname"`
+	IDMappings         IDMappings        `json:"idMappings,omitempty"`
+	Kernel             string            `json:"kernel"`
+	LogDriver          string            `json:"logDriver"`
+	MemFree            int64             `json:"memFree"`
+	MemTotal           int64             `json:"memTotal"`
+	NetworkBackend     string            `json:"networkBackend"`
+	NetworkBackendInfo types.NetworkInfo `json:"networkBackendInfo"`
+	OCIRuntime         *OCIRuntimeInfo   `json:"ociRuntime"`
+	OS                 string            `json:"os"`
 	// RemoteSocket returns the UNIX domain socket the Podman service is listening on
 	RemoteSocket *RemoteSocket          `json:"remoteSocket,omitempty"`
 	RuntimeInfo  map[string]interface{} `json:"runtimeInfo,omitempty"`

libpod/info.go

@@ -14,6 +14,7 @@ import (
 
 	"github.com/containers/buildah"
 	"github.com/containers/buildah/pkg/util"
+	cutil "github.com/containers/common/pkg/util"
 	"github.com/containers/image/v5/pkg/sysregistriesv2"
 	"github.com/containers/podman/v4/libpod/define"
 	"github.com/containers/podman/v4/libpod/linkmode"
@@ -106,24 +107,25 @@ func (r *Runtime) hostInfo() (*define.HostInfo, error) {
 	}
 
 	info := define.HostInfo{
-		Arch:            runtime.GOARCH,
-		BuildahVersion:  buildah.Version,
-		DatabaseBackend: r.config.Engine.DBBackend,
-		Linkmode:        linkmode.Linkmode(),
-		CPUs:            runtime.NumCPU(),
-		CPUUtilization:  cpuUtil,
-		Distribution:    hostDistributionInfo,
-		FreeLocks:       locksFree,
-		LogDriver:       r.config.Containers.LogDriver,
-		EventLogger:     r.eventer.String(),
-		Hostname:        host,
-		Kernel:          kv,
-		MemFree:         mi.MemFree,
-		MemTotal:        mi.MemTotal,
-		NetworkBackend:  r.config.Network.NetworkBackend,
-		OS:              runtime.GOOS,
-		SwapFree:        mi.SwapFree,
-		SwapTotal:       mi.SwapTotal,
+		Arch:               runtime.GOARCH,
+		BuildahVersion:     buildah.Version,
+		DatabaseBackend:    r.config.Engine.DBBackend,
+		Linkmode:           linkmode.Linkmode(),
+		CPUs:               runtime.NumCPU(),
+		CPUUtilization:     cpuUtil,
+		Distribution:       hostDistributionInfo,
+		LogDriver:          r.config.Containers.LogDriver,
+		EventLogger:        r.eventer.String(),
+		FreeLocks:          locksFree,
+		Hostname:           host,
+		Kernel:             kv,
+		MemFree:            mi.MemFree,
+		MemTotal:           mi.MemTotal,
+		NetworkBackend:     r.config.Network.NetworkBackend,
+		NetworkBackendInfo: r.network.NetworkInfo(),
+		OS:                 runtime.GOOS,
+		SwapFree:           mi.SwapFree,
+		SwapTotal:          mi.SwapTotal,
 	}
 	if err := r.setPlatformHostInfo(&info); err != nil {
 		return nil, err
@@ -241,14 +243,14 @@ func (r *Runtime) storeInfo() (*define.StoreInfo, error) {
 	for _, o := range r.store.GraphOptions() {
 		split := strings.SplitN(o, "=", 2)
 		if strings.HasSuffix(split[0], "mount_program") {
-			version, err := programVersion(split[1])
+			version, err := cutil.ProgramVersion(split[1])
 			if err != nil {
 				logrus.Warnf("Failed to retrieve program version for %s: %v", split[1], err)
 			}
 			program := map[string]interface{}{}
 			program["Executable"] = split[1]
 			program["Version"] = version
-			program["Package"] = packageVersion(split[1])
+			program["Package"] = cutil.PackageVersion(split[1])
 			graphOptions[split[0]] = program
 		} else {
 			graphOptions[split[0]] = split[1]

libpod/info_linux.go

@@ -11,6 +11,7 @@ import (
 	"github.com/containers/common/pkg/apparmor"
 	"github.com/containers/common/pkg/cgroups"
 	"github.com/containers/common/pkg/seccomp"
+	"github.com/containers/common/pkg/util"
 	"github.com/containers/podman/v4/libpod/define"
 	"github.com/containers/podman/v4/pkg/rootless"
 	"github.com/opencontainers/selinux/go-selinux"
@@ -59,27 +60,27 @@ func (r *Runtime) setPlatformHostInfo(info *define.HostInfo) error {
 		slirp4netnsPath, _ = r.config.FindHelperBinary(slirp4netnsBinaryName, true)
 	}
 	if slirp4netnsPath != "" {
-		version, err := programVersion(slirp4netnsPath)
+		version, err := util.ProgramVersion(slirp4netnsPath)
 		if err != nil {
 			logrus.Warnf("Failed to retrieve program version for %s: %v", slirp4netnsPath, err)
 		}
 		program := define.SlirpInfo{
 			Executable: slirp4netnsPath,
-			Package:    packageVersion(slirp4netnsPath),
+			Package:    util.PackageVersion(slirp4netnsPath),
 			Version:    version,
 		}
 		info.Slirp4NetNS = program
 	}
 
 	pastaPath, _ := r.config.FindHelperBinary(pastaBinaryName, true)
 	if pastaPath != "" {
-		version, err := programVersion(pastaPath)
+		version, err := util.ProgramVersion(pastaPath)
 		if err != nil {
 			logrus.Warnf("Failed to retrieve program version for %s: %v", pastaPath, err)
 		}
 		program := define.PastaInfo{
 			Executable: pastaPath,
-			Package:    packageVersion(pastaPath),
+			Package:    util.PackageVersion(pastaPath),
 			Version:    version,
 		}
 		info.Pasta = program

libpod/oci_conmon_common.go

@@ -945,8 +945,8 @@ func (r *ConmonOCIRuntime) ExitFilePath(ctr *Container) (string, error) {
 
 // RuntimeInfo provides information on the runtime.
 func (r *ConmonOCIRuntime) RuntimeInfo() (*define.ConmonInfo, *define.OCIRuntimeInfo, error) {
-	runtimePackage := packageVersion(r.path)
-	conmonPackage := packageVersion(r.conmonPath)
+	runtimePackage := cutil.PackageVersion(r.path)
+	conmonPackage := cutil.PackageVersion(r.conmonPath)
 	runtimeVersion, err := r.getOCIRuntimeVersion()
 	if err != nil {
 		return nil, nil, fmt.Errorf("getting version of OCI runtime %s: %w", r.name, err)

libpod/util.go

@@ -7,7 +7,6 @@ import (
 	"io"
 	"net/http"
 	"os"
-	"os/exec"
 	"path/filepath"
 	"sort"
 	"strings"
@@ -16,18 +15,12 @@ import (
 	"github.com/containers/common/libnetwork/types"
 	"github.com/containers/common/pkg/config"
 	"github.com/containers/podman/v4/libpod/define"
-	"github.com/containers/podman/v4/utils"
 	"github.com/fsnotify/fsnotify"
 	spec "github.com/opencontainers/runtime-spec/specs-go"
 	"github.com/opencontainers/selinux/go-selinux/label"
 	"github.com/sirupsen/logrus"
 )
 
-// Runtime API constants
-const (
-	unknownPackage = "Unknown"
-)
-
 // FuncTimer helps measure the execution time of a function
 // For debug purposes, do not leave in code
 // used like defer FuncTimer("foo")
@@ -145,57 +138,6 @@ func JSONDeepCopy(from, to interface{}) error {
 	return json.Unmarshal(tmp, to)
 }
 
-func queryPackageVersion(cmdArg ...string) string {
-	output := unknownPackage
-	if 1 < len(cmdArg) {
-		cmd := exec.Command(cmdArg[0], cmdArg[1:]...)
-		if outp, err := cmd.Output(); err == nil {
-			output = string(outp)
-			if cmdArg[0] == "/usr/bin/dpkg" {
-				r := strings.Split(output, ": ")
-				queryFormat := `${Package}_${Version}_${Architecture}`
-				cmd = exec.Command("/usr/bin/dpkg-query", "-f", queryFormat, "-W", r[0])
-				if outp, err := cmd.Output(); err == nil {
-					output = string(outp)
-				}
-			}
-		}
-		if cmdArg[0] == "/sbin/apk" {
-			prefix := cmdArg[len(cmdArg)-1] + " is owned by "
-			output = strings.Replace(output, prefix, "", 1)
-		}
-	}
-	return strings.Trim(output, "\n")
-}
-
-func packageVersion(program string) string { // program is full path
-	packagers := [][]string{
-		{"/usr/bin/rpm", "-q", "-f"},
-		{"/usr/bin/dpkg", "-S"},                // Debian, Ubuntu
-		{"/usr/bin/pacman", "-Qo"},             // Arch
-		{"/usr/bin/qfile", "-qv"},              // Gentoo (quick)
-		{"/usr/bin/equery", "b"},               // Gentoo (slow)
-		{"/sbin/apk", "info", "-W"},            // Alpine
-		{"/usr/local/sbin/pkg", "which", "-q"}, // FreeBSD
-	}
-
-	for _, cmd := range packagers {
-		cmd = append(cmd, program)
-		if out := queryPackageVersion(cmd...); out != unknownPackage {
-			return out
-		}
-	}
-	return unknownPackage
-}
-
-func programVersion(mountProgram string) (string, error) {
-	output, err := utils.ExecCmd(mountProgram, "--version")
-	if err != nil {
-		return "", err
-	}
-	return strings.TrimSuffix(output, "\n"), nil
-}
-
 // DefaultSeccompPath returns the path to the default seccomp.json file
 // if it exists, first it checks OverrideSeccomp and then default.
 // If neither exist function returns ""

test/e2e/info_test.go

@@ -160,6 +160,11 @@ var _ = Describe("Podman Info", func() {
 		session.WaitWithDefaultTimeout()
 		Expect(session).To(Exit(0))
 		Expect(session.OutputToString()).To(Equal(want))
+
+		session = podmanTest.Podman([]string{"info", "--format", "{{.Host.NetworkBackendInfo.Backend}}"})
+		session.WaitWithDefaultTimeout()
+		Expect(session).To(Exit(0))
+		Expect(session.OutputToString()).To(Equal(want))
 	})
 
 	It("Podman info: check desired database backend", func() {

test/system/005-info.bats

@@ -42,6 +42,7 @@ host.conmon.path          | $expr_path
 host.conmon.package       | .*conmon.*
 host.cgroupManager        | \\\(systemd\\\|cgroupfs\\\)
 host.cgroupVersion        | v[12]
+host.networkBackendInfo   | .*dns.*package.*
 host.ociRuntime.path      | $expr_path
 host.pasta                | .*executable.*package.*
 store.configFile          | $expr_path