Open in browser

Most containers expose some http port. We can open it in browser.
For simplicity we can just open first container's published port.
We'll determine the ip:port on container creation and store to meta "Web Port".
To open browser on any platform was added a new dependency github.com/pkg/browser which is very small

connector/docker.go

@@ -148,6 +148,23 @@ func portsFormat(ports map[api.Port][]api.PortBinding) string {
 	return strings.Join(append(exposed, published...), "\n")
 }
 
+func webPort(ports map[api.Port][]api.PortBinding) string {
+	for _, v := range ports {
+		if len(v) == 0 {
+			continue
+		}
+		for _, binding := range v {
+			publishedIp := binding.HostIP
+			if publishedIp == "0.0.0.0" {
+				publishedIp = "localhost"
+			}
+			publishedWebPort := fmt.Sprintf("%s:%s", publishedIp, binding.HostPort)
+			return publishedWebPort
+		}
+	}
+	return ""
+}
+
 func ipsFormat(networks map[string]api.ContainerNetwork) string {
 	var ips []string
 
@@ -173,6 +190,10 @@ func (cm *Docker) refresh(c *container.Container) {
 	c.SetMeta("image", insp.Config.Image)
 	c.SetMeta("IPs", ipsFormat(insp.NetworkSettings.Networks))
 	c.SetMeta("ports", portsFormat(insp.NetworkSettings.Ports))
+	webPort := webPort(insp.NetworkSettings.Ports)
+	if webPort != "" {
+		c.SetMeta("Web Port", webPort)
+	}
 	c.SetMeta("created", insp.Created.Format("Mon Jan 2 15:04:05 2006"))
 	c.SetMeta("health", insp.State.Health.Status)
 	for _, env := range insp.Config.Env {

go.mod

@@ -12,6 +12,7 @@ require (
 	github.com/nu7hatch/gouuid v0.0.0-20131221200532-179d4d0c4d8d
 	github.com/op/go-logging v0.0.0-20160211212156-b2cb9fa56473
 	github.com/opencontainers/runc v1.0.0-rc92
+	github.com/pkg/browser v0.0.0-20201207095918-0426ae3fba23
 	github.com/pkg/errors v0.9.1
 	github.com/stretchr/testify v1.4.0
 )

go.sum

@@ -146,6 +146,8 @@ github.com/opencontainers/runtime-spec v1.0.3-0.20200728170252-4d89ac9fbff6 h1:N
 github.com/opencontainers/runtime-spec v1.0.3-0.20200728170252-4d89ac9fbff6/go.mod h1:jwyrGlmzljRJv/Fgzds9SsS/C5hL+LL3ko9hs6T5lQ0=
 github.com/opencontainers/selinux v1.6.0 h1:+bIAS/Za3q5FTwWym4fTB0vObnfCf3G/NC7K6Jx62mY=
 github.com/opencontainers/selinux v1.6.0/go.mod h1:VVGKuOLlE7v4PJyT6h7mNWvq1rzqiriPsEqVhc+svHE=
+github.com/pkg/browser v0.0.0-20201207095918-0426ae3fba23 h1:dofHuld+js7eKSemxqTVIo8yRlpRw+H1SdpzZxWruBc=
+github.com/pkg/browser v0.0.0-20201207095918-0426ae3fba23/go.mod h1:N6UoU20jOqggOuDwUaBQpluzLNDqif3kq9z2wpdYEfQ=
 github.com/pkg/errors v0.8.1-0.20171018195549-f15c970de5b7/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
 github.com/pkg/errors v0.8.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
 github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4=

grid.go

@@ -162,6 +162,9 @@ func Display() bool {
 		menu = ExecShell
 		ui.StopLoop()
 	})
+	ui.Handle("/sys/kbd/w", func(ui.Event) {
+		menu = OpenInBrowser()
+	})
 	ui.Handle("/sys/kbd/o", func(ui.Event) {
 		menu = SingleView
 		ui.StopLoop()

menus.go

@@ -10,6 +10,7 @@ import (
 	"github.com/bcicen/ctop/widgets"
 	"github.com/bcicen/ctop/widgets/menu"
 	ui "github.com/gizak/termui"
+	"github.com/pkg/browser"
 )
 
 // MenuFn executes a menu window, returning the next menu or nil
@@ -27,6 +28,7 @@ var helpDialog = []menu.Item{
 	{"[o] - open single view", ""},
 	{"[l] - view container logs ([t] to toggle timestamp when open)", ""},
 	{"[e] - exec shell", ""},
+	{"[w] - open browser (first port is http)", ""},
 	{"[c] - configure columns", ""},
 	{"[S] - save current configuration to file", ""},
 	{"[q] - exit ctop", ""},
@@ -221,6 +223,7 @@ func ContainerMenu() MenuFn {
 		items = append(items, menu.Item{Val: "pause", Label: "[p] pause"})
 		items = append(items, menu.Item{Val: "restart", Label: "[r] restart"})
 		items = append(items, menu.Item{Val: "exec", Label: "[e] exec shell"})
+		items = append(items, menu.Item{Val: "browser", Label: "[w] open in browser"})
 	}
 	if c.Meta["state"] == "exited" || c.Meta["state"] == "created" {
 		items = append(items, menu.Item{Val: "start", Label: "[s] start"})
@@ -277,6 +280,9 @@ func ContainerMenu() MenuFn {
 			selected = "restart"
 			ui.StopLoop()
 		})
+		ui.Handle("/sys/kbd/w", func(ui.Event) {
+			selected = "browser"
+		})
 	}
 	ui.Handle("/sys/kbd/R", func(ui.Event) {
 		selected = "remove"
@@ -303,6 +309,8 @@ func ContainerMenu() MenuFn {
 		nextMenu = LogMenu
 	case "exec":
 		nextMenu = ExecShell
+	case "browser":
+		nextMenu = OpenInBrowser
 	case "start":
 		nextMenu = Confirm(confirmTxt("start", c.GetMeta("name")), c.Start)
 	case "stop":
@@ -374,6 +382,21 @@ func ExecShell() MenuFn {
 	return nil
 }
 
+func OpenInBrowser() MenuFn {
+	c := cursor.Selected()
+	if c == nil {
+		return nil
+	}
+
+	webPort := c.Meta.Get("Web Port")
+	if webPort == "" {
+		return nil
+	}
+	link := "http://" + webPort + "/"
+	browser.OpenURL(link)
+	return nil
+}
+
 // Create a confirmation dialog with a given description string and
 // func to perform if confirmed
 func Confirm(txt string, fn func()) MenuFn {