Added edgeapps package, cleaned up redundancies

Makefile

@@ -20,9 +20,6 @@ build:
 		-trimpath -ldflags "-s -w -X ${PROJECT}/internal/diagnostics.Version=${RELEASE} \
 		-X ${PROJECT}/internal/diagnostics.Commit=${COMMIT} \
 		-X ${PROJECT}/internal/diagnostics.BuildDate=${BUILD_DATE} \
-		-X ${PROJECT}/internal/tasks.Version=${RELEASE} \
-		-X ${PROJECT}/internal/tasks.Commit=${COMMIT} \
-		-X ${PROJECT}/internal/tasks.BuildDate=${BUILD_DATE} \
 		-X ${PROJECT}/internal/tasks.Dbhost=${DBHOST} \
 		-X ${PROJECT}/internal/tasks.Dbname=${DBNAME} \
 		-X ${PROJECT}/internal/tasks.Dbuser=${DBUSER} \

go.mod

@@ -2,9 +2,14 @@ module github.com/edgebox-iot/sysctl
 
 go 1.15
 
+replace github.com/edgebox-iot/sysctl/internal/utils => ./internal/utils
+
 replace github.com/edgebox-iot/sysctl/internal/tasks => ./internal/tasks
 
+replace github.com/edgebix-iot/sysctl/internal/edgeapps => ./internal/edgeapps
+
 require (
 	github.com/edgebox-iot/sysctl/internal/tasks v0.0.0-00010101000000-000000000000
+	github.com/edgebox-iot/sysctl/internal/utils v0.0.0-00010101000000-000000000000 // indirect
 	github.com/go-sql-driver/mysql v1.5.0 // indirect
 )

internal/edgeapps/edgeapps.go

@@ -0,0 +1,64 @@
+package edgeapps
+
+import (
+	"fmt"
+	"io/ioutil"
+	"log"
+	"os"
+)
+
+// EdgeApp : Struct representing an EdgeApp in the system
+type EdgeApp struct {
+	ID                 string        `json:"id"`
+	Name               string        `json:"name"`
+	Status             EdgeAppStatus `json:"status"`
+	InternetAccessible bool          `json:"internet_accessible"`
+	InternetURL        string        `json:"internet_url"`
+	NetworkURL         string        `json:"network_url"`
+}
+
+// EdgeAppStatus : Struct representing possible EdgeApp statuses (code + description)
+type EdgeAppStatus struct {
+	ID          int    `json:"id"`
+	Description string `json:"description"`
+}
+
+// GetEdgeApps : Returns a list of EdgeApp struct filled with information
+func GetEdgeApps() []EdgeApp {
+
+	var edgeApps []EdgeApp
+
+	// Building list of available edgeapps in the system.
+	configFilename := "edgebox-compose.yml"
+	// envFilename := "edgebox.env"
+	// postinstallFilename := "edgebox-postinstall.txt"
+	edgeAppsPath := "/home/system/components/apps"
+	var edgeAppsList []string
+
+	files, err := ioutil.ReadDir(edgeAppsPath)
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	for _, f := range files {
+		fmt.Println(f.Name())
+		if f.IsDir() {
+			// It is a folder that most probably contains an EdgeApp.
+			// To be fully sure, test that edgebox-compose.yml file exists in the target directory.
+			_, err := os.Stat("/home/system/components/apps/" + f.Name() + "/" + configFilename)
+			if !os.IsNotExist(err) {
+				// File exists. Start digging!
+				edgeAppsList = append(edgeAppsList, f.Name())
+			}
+
+		}
+	}
+
+	// Querying to see which apps are running.
+	// cmdargs = []string{"ps", "-a"}
+	// executeCommand("docker", cmdargs)
+	// (...)
+
+	return edgeApps
+
+}

internal/edgeapps/go.mod

@@ -0,0 +1,3 @@
+module github.com/edgebox-iot/sysctl/internal/edgeapps
+
+go 1.15

internal/tasks/tasks.go

@@ -1,26 +1,17 @@
 package tasks
 
 import (
-	"bytes"
 	"database/sql"
 	"encoding/json"
 	"fmt"
 	"log"
-	"os/exec"
 	"strconv"
 
+	"github.com/edgebox-iot/sysctl/internal/diagnostics"
+	"github.com/edgebox-iot/sysctl/internal/utils"
 	_ "github.com/go-sql-driver/mysql" // Mysql Driver
 )
 
-// Version : The release version
-var Version string
-
-// Commit : The commit of this release
-var Commit string
-
-// BuildDate : The release build date
-var BuildDate string
-
 // Dbhost : Database host (can be tweaked in makefile)
 var Dbhost string
 
@@ -112,7 +103,7 @@ func ExecuteTask(task Task) Task {
 
 	}
 
-	if Version == "dev" {
+	if diagnostics.Version == "dev" {
 		log.Printf("Dev environemnt. Not executing tasks.")
 	} else {
 		log.Println("Task: " + task.Task)
@@ -159,6 +150,11 @@ func ExecuteTask(task Task) Task {
 // ExecuteSchedules - Run Specific tasks without input each multiple x of ticks.
 func ExecuteSchedules(tick int) {
 
+	if tick == 1 {
+		// Executing on startup (first tick). Schedules run before tasks in the SystemIterator
+		taskGetEdgeApps()
+	}
+
 	if tick%30 == 0 {
 		// Executing every 30 ticks
 		taskGetEdgeApps()
@@ -174,33 +170,18 @@ func ExecuteSchedules(tick int) {
 
 }
 
-func executeCommand(command string, args []string) string {
-	cmd := exec.Command(command, args...)
-	var out bytes.Buffer
-	var stderr bytes.Buffer
-	cmd.Stdout = &out
-	cmd.Stderr = &stderr
-	err := cmd.Run()
-	if err != nil {
-		log.Println(fmt.Sprint(err) + ": " + stderr.String())
-	}
-	log.Println("Result: " + out.String())
-
-	return out.String()
-}
-
 func taskSetupTunnel(args taskSetupTunnelArgs) string {
 
 	fmt.Println("Executing taskSetupTunnel")
 
 	cmdargs := []string{"gen", "--name", args.NodeName, "--token", args.BootnodeToken, args.BootnodeAddress + ":8655", "--prefix", args.AssignedAddress}
-	executeCommand("tinc-boot", cmdargs)
+	utils.Exec("tinc-boot", cmdargs)
 
 	cmdargs = []string{"start", "tinc@dnet"}
-	executeCommand("systemctl", cmdargs)
+	utils.Exec("systemctl", cmdargs)
 
 	cmdargs = []string{"enable", "tinc@dnet"}
-	executeCommand("systemctl", cmdargs)
+	utils.Exec("systemctl", cmdargs)
 
 	output := "OK" // Better check / logging of command execution result.
 	return output
@@ -211,13 +192,6 @@ func taskGetEdgeApps() string {
 
 	fmt.Println("Executing taskGetEdgeApps")
 
-	// Building list of available edgeapps in the system.
-
-	// Querying to see which apps are running.
-	// cmdargs = []string{"ps", "-a"}
-	// executeCommand("docker", cmdargs)
-	// (...)
-
 	// Saving information in the "options" table.
 	return "OK"
 }

internal/utils/go.mod

@@ -0,0 +1,3 @@
+module github.com/edgebox-iot/sysctl/internal/utils
+
+go 1.15

internal/utils/utils.go

@@ -0,0 +1,24 @@
+package utils
+
+import (
+	"bytes"
+	"fmt"
+	"log"
+	"os/exec"
+)
+
+// Exec : Runs a terminal Command, catches and logs errors, returns the result.
+func Exec(command string, args []string) string {
+	cmd := exec.Command(command, args...)
+	var out bytes.Buffer
+	var stderr bytes.Buffer
+	cmd.Stdout = &out
+	cmd.Stderr = &stderr
+	err := cmd.Run()
+	if err != nil {
+		log.Println(fmt.Sprint(err) + ": " + stderr.String())
+	}
+	log.Println("Result: " + out.String())
+
+	return out.String()
+}