NOT WORKING: WIP on adding server-wide logs functionality

cli/internal/validate.go

@@ -112,6 +112,35 @@ func ValidateApp(c *cli.Context) config.App {
 	return app
 }
 
+// ValidateAppByName ensures the app is valid and takes an app name as an argument, not context.
+func ValidateAppByName(c *cli.Context, appName string) config.App {
+	if AppName != "" {
+		appName = AppName
+		logrus.Debugf("programmatically setting app name to %s", appName)
+	}
+
+	if appName == "" {
+		ShowSubcommandHelpAndError(c, errors.New("no app provided"))
+	}
+
+	app, err := app.Get(appName)
+	if err != nil {
+		logrus.Fatal(err)
+	}
+
+	if err := recipe.EnsureExists(app.Type); err != nil {
+		logrus.Fatal(err)
+	}
+
+	if err := ssh.EnsureHostKey(app.Server); err != nil {
+		logrus.Fatal(err)
+	}
+
+	logrus.Debugf("validated '%s' as app argument", appName)
+
+	return app
+}
+
 // ValidateDomain ensures the domain name arg is valid.
 func ValidateDomain(c *cli.Context) (string, error) {
 	domainName := c.Args().First()

cli/server/logs.go

@@ -0,0 +1,101 @@
+package server
+
+import (
+	"fmt"
+	"io"
+	"os"
+
+	"coopcloud.tech/abra/cli/internal"
+	"coopcloud.tech/abra/pkg/client"
+	"coopcloud.tech/abra/pkg/config"
+	"github.com/docker/docker/api/types"
+	"github.com/docker/docker/api/types/filters"
+	"github.com/sirupsen/logrus"
+	"github.com/urfave/cli/v2"
+)
+
+var Taillen string
+var TaillenFlag = &cli.StringFlag{
+	Name:        "tail",
+	Aliases:     []string{"t"},
+	Value:       "5",
+	Destination: &Taillen,
+	Usage:       "change how many lines are shown",
+}
+
+var serverLogsCommand = &cli.Command{
+	Name:      "logs",
+	Aliases:   []string{"l"},
+	ArgsUsage: "<server>",
+	Usage:     "show logs from all apps from server",
+	Flags: []cli.Flag{
+		TaillenFlag,
+		internal.StderrFlag,
+		internal.StdoutFlag,
+		internal.HealthcheckFlag,
+	},
+	Action: func(c *cli.Context) error {
+		serverName, err := internal.ValidateServer(c)
+		serviceName := ""
+		if !internal.Stderr && !internal.Stdout && !internal.Healthcheck {
+			internal.Stderr = true
+			internal.Stdout = true
+			internal.Healthcheck = true
+		}
+
+		logrus.Debugf("flags parsed. --stderr: %t, --stdout: %t, --healthcheck: %t", internal.Stderr, internal.Stdout, internal.Healthcheck)
+		if err != nil {
+			logrus.Fatal(err)
+		}
+		appMap, err := config.LoadAppFiles(serverName)
+		if err != nil {
+			logrus.Fatal(err)
+		}
+
+		logOpts := types.ContainerLogsOptions{
+			Details:    false,
+			Follow:     false,
+			ShowStderr: internal.Stderr,
+			ShowStdout: internal.Stdout,
+			Tail:       Taillen,
+			Timestamps: true,
+		}
+
+		var appFiles []config.App
+		for appname, _ := range appMap {
+			app := internal.ValidateAppByName(c, appname)
+			appFiles = append(appFiles, app)
+		}
+		for _, app := range appFiles {
+			fmt.Println(app)
+			logrus.Debugf("checking logs for: %s", app.Name)
+			cl, err := client.New(app.Server)
+			if err != nil {
+				logrus.Fatal(err)
+			}
+			logrus.Debugf("tailing logs for all services")
+			filters := filters.NewArgs()
+			filters.Add("name", service)
+			serviceOpts := types.ServiceListOptions{Filters: filters}
+			services, err := cl.ServiceList(c.Context, serviceOpts)
+			if err != nil {
+				logrus.Fatal(err)
+			}
+			logs, err := cl.ServiceLogs(c.Context, services[0].ID, logOpts)
+			if err != nil {
+				logrus.Fatal(err)
+			}
+			logrus.Info(app.StackName())
+			for {
+				_, err = io.Copy(os.Stdout, logs)
+				if err == io.EOF {
+					break
+				} else if err != nil {
+					logrus.Fatal(err)
+				}
+			}
+			logs.Close()
+		}
+		return nil
+	},
+}

cli/server/server.go

@@ -23,5 +23,6 @@ apps, see available flags on "server add" for more.
 		serverAddCommand,
 		serverListCommand,
 		serverRemoveCommand,
+		serverLogsCommand,
 	},
 }