Podman machine info

Add podman machine info command, which displays infor about the machine
host as well as version info.

Signed-off-by: Ashley Cui <acui@redhat.com>

5 files changed, 87 insertions, 1 deletions

diff --git a/pkg/machine/config.go b/pkg/machine/config.go
index fcc129338..66fa6ab91 100644
--- a/pkg/machine/config.go
+++ b/pkg/machine/config.go
@@ -55,6 +55,7 @@ type Provider interface {
 	IsValidVMName(name string) (bool, error)
 	CheckExclusiveActiveVM() (bool, string, error)
 	RemoveAndCleanMachines() error
+	VMType() string
 }
 
 type RemoteConnectionType string
diff --git a/pkg/machine/e2e/config_info.go b/pkg/machine/e2e/config_info.go
new file mode 100644
index 000000000..410c7e518
--- /dev/null
+++ b/pkg/machine/e2e/config_info.go
@@ -0,0 +1,20 @@
+package e2e
+
+type infoMachine struct {
+	format string
+	cmd    []string
+}
+
+func (i *infoMachine) buildCmd(m *machineTestBuilder) []string {
+	cmd := []string{"machine", "info"}
+	if len(i.format) > 0 {
+		cmd = append(cmd, "--format", i.format)
+	}
+	i.cmd = cmd
+	return cmd
+}
+
+func (i *infoMachine) withFormat(format string) *infoMachine {
+	i.format = format
+	return i
+}
diff --git a/pkg/machine/e2e/info_test.go b/pkg/machine/e2e/info_test.go
new file mode 100644
index 000000000..eeabb78af
--- /dev/null
+++ b/pkg/machine/e2e/info_test.go
@@ -0,0 +1,58 @@
+package e2e
+
+import (
+	"github.com/containers/podman/v4/cmd/podman/machine"
+	jsoniter "github.com/json-iterator/go"
+	. "github.com/onsi/ginkgo"
+	. "github.com/onsi/gomega"
+	. "github.com/onsi/gomega/gexec"
+)
+
+var _ = Describe("podman machine info", func() {
+	var (
+		mb      *machineTestBuilder
+		testDir string
+	)
+
+	BeforeEach(func() {
+		testDir, mb = setup()
+	})
+	AfterEach(func() {
+		teardown(originalHomeDir, testDir, mb)
+	})
+
+	It("machine info", func() {
+		info := new(infoMachine)
+		infoSession, err := mb.setCmd(info).run()
+		Expect(err).NotTo(HaveOccurred())
+		Expect(infoSession).Should(Exit(0))
+
+		// Verify go template works and check for no running machines
+		info = new(infoMachine)
+		infoSession, err = mb.setCmd(info.withFormat("{{.Host.NumberOfMachines}}")).run()
+		Expect(err).NotTo(HaveOccurred())
+		Expect(infoSession).Should(Exit(0))
+		Expect(infoSession.outputToString()).To(Equal("0"))
+
+		// Create a machine and check if info has been updated
+		i := new(initMachine)
+		initSession, err := mb.setCmd(i.withImagePath(mb.imagePath)).run()
+		Expect(err).To(BeNil())
+		Expect(initSession).To(Exit(0))
+
+		info = new(infoMachine)
+		infoSession, err = mb.setCmd(info.withFormat("{{.Host.NumberOfMachines}}")).run()
+		Expect(err).NotTo(HaveOccurred())
+		Expect(infoSession).Should(Exit(0))
+		Expect(infoSession.outputToString()).To(Equal("1"))
+
+		// Check if json is in correct format
+		infoSession, err = mb.setCmd(info.withFormat("json")).run()
+		Expect(err).NotTo(HaveOccurred())
+		Expect(infoSession).Should(Exit(0))
+
+		infoReport := &machine.Info{}
+		err = jsoniter.Unmarshal(infoSession.Bytes(), infoReport)
+		Expect(err).To(BeNil())
+	})
+})
diff --git a/pkg/machine/qemu/machine.go b/pkg/machine/qemu/machine.go
index 2fe0230cf..616d573eb 100644
--- a/pkg/machine/qemu/machine.go
+++ b/pkg/machine/qemu/machine.go
@@ -1698,6 +1698,9 @@ func isProcessAlive(pid int) bool {
 	if err == nil || err == unix.EPERM {
 		return true
 	}
-
 	return false
 }
+
+func (p *Provider) VMType() string {
+	return vmtype
+}
diff --git a/pkg/machine/wsl/machine.go b/pkg/machine/wsl/machine.go
index 075f42cb2..6553fb6a5 100644
--- a/pkg/machine/wsl/machine.go
+++ b/pkg/machine/wsl/machine.go
@@ -1553,3 +1553,7 @@ func (p *Provider) RemoveAndCleanMachines() error {
 	}
 	return prevErr
 }
+
+func (p *Provider) VMType() string {
+	return vmtype
+}