added possibility to add a new container group

client/GroupTrackContainer.go

@@ -0,0 +1,111 @@
+package client
+
+import (
+	"encoding/json"
+	"git.sr.ht/~akilan1999/p2p-rendering-computation/config"
+	"github.com/google/uuid"
+	"io/ioutil"
+	"os"
+)
+
+// Groups Data Structure type
+type Groups struct {
+	GroupList []*Group `json:"Groups"`
+}
+
+// Group Information about a single group
+type Group struct {
+	ID string `json:"ID"`
+	TrackContainerList []*TrackContainer `json:"TrackContainer"`
+}
+
+// CreateGroup Creates a new group to add a set of trackcontainers
+func CreateGroup() (*Group, error){
+	// Creating variable of type new group
+	var NewGroup Group
+	// Generate new UUID for group ID
+	id := uuid.New()
+	// Add new group id and prepend with the string "grp"
+	// The reason this is done is to differentiate between a
+	// group ID and docker container ID
+	NewGroup.ID = "grp" + id.String()
+	// Adding the new group to the
+	// GroupTrackContainer File
+	err := NewGroup.AddGroupToFile()
+	if err != nil {
+		return nil, err
+	}
+
+	return &NewGroup,nil
+}
+
+// AddGroupToFile Adds Group struct to the GroupTrackContainer File
+func (grp *Group) AddGroupToFile() error {
+	// Gets all group information from the
+	// GroupTrackContainer JSON file
+    groups, err := ReadGroup()
+    if err != nil {
+    	return err
+	}
+	// Appending the newly created group
+	groups.GroupList = append(groups.GroupList, grp)
+	// Writing Group information to the GroupTrackContainer
+	// JSON file
+	err = groups.WriteGroup()
+	if err != nil {
+		return err
+	}
+
+	return nil
+}
+
+// ReadGroup Function reads grouptrackcontainers.json and converts
+// result to Groups
+func ReadGroup() (*Groups,error) {
+	// Get Path from config
+	config, err := config.ConfigInit()
+	if err != nil {
+		return nil,err
+	}
+	jsonFile, err := os.Open(config.GroupTrackContainersPath)
+	// if we os.Open returns an error then handle it
+	if err != nil {
+		return nil,err
+	}
+
+	// defer the closing of our jsonFile so that we can parse it later on
+	defer jsonFile.Close()
+
+	// read our opened xmlFile as a byte array.
+	byteValue, _ := ioutil.ReadAll(jsonFile)
+
+	// we initialize our Users array
+	var groups Groups
+
+	// we unmarshal our byteArray which contains our
+	// jsonFile's content into 'users' which we defined above
+	json.Unmarshal(byteValue, &groups)
+	return &groups, nil
+}
+
+
+// WriteGroup Function to write type Groups to the grouptrackcontainers.json file
+func (grp *Groups)WriteGroup() error {
+	file, err := json.MarshalIndent(grp, "", " ")
+	if err != nil {
+		return err
+	}
+
+	// Get Path from config
+	config, err := config.ConfigInit()
+	if err != nil {
+		return err
+	}
+    // Writes to the appropriate file
+	err = ioutil.WriteFile(config.GroupTrackContainersPath, file, 0644)
+	if err != nil {
+		return err
+	}
+
+	return nil
+}

client/GroupTrackContainer_test.go

@@ -0,0 +1,16 @@
+package client
+
+import (
+	"fmt"
+	"testing"
+)
+
+// Testing out if a new group is getting created
+func TestCreateGroup(t *testing.T) {
+	group, err := CreateGroup()
+	if err != nil {
+		fmt.Println(err)
+		t.Fail()
+	}
+	PrettyPrint(group)
+}

client/TrackContainers.go

@@ -12,7 +12,7 @@ import (
 
 // TrackContainers This struct stores arrays of current containers running
 type TrackContainers struct {
-  	TrackcontianerList []TrackContainer `json:"TrackContainer"`
+  	TrackContainerList []TrackContainer `json:"TrackContainer"`
 }
 
 // TrackContainer Stores information of current containers
@@ -63,7 +63,7 @@ func AddTrackContainer(d *docker.DockerVM,ipAddress string) error {
 	if &trackContainer == nil {
 		return errors.New("trackContainer variable is nil")
 	}
-	trackContainers.TrackcontianerList = append(trackContainers.TrackcontianerList, trackContainer)
+	trackContainers.TrackContainerList = append(trackContainers.TrackContainerList, trackContainer)
 
 	// write modified information to the tracked json file
 	data,err := json.MarshalIndent(trackContainers, "", "\t")
@@ -86,12 +86,12 @@ func RemoveTrackedContainer(id string) error {
 		return err
 	}
 	// Getting tracked container struct
-	trackedContianers, err := ReadTrackContainers(config.TrackContainersPath)
+	trackedContainers, err := ReadTrackContainers(config.TrackContainersPath)
 	// Storing index of element to remove
 	var removeElement int
 	removeElement = -1
-	for i := range trackedContianers.TrackcontianerList {
-		if trackedContianers.TrackcontianerList[i].Id == id {
+	for i := range trackedContainers.TrackContainerList {
+		if trackedContainers.TrackContainerList[i].Id == id {
 			removeElement = i
 			break
 		}
@@ -101,10 +101,10 @@ func RemoveTrackedContainer(id string) error {
 		return errors.New("Container ID not found in the tracked list")
 	}
 	// Remove the detected element from the struct
-	trackedContianers.TrackcontianerList = append(trackedContianers.TrackcontianerList[:removeElement], trackedContianers.TrackcontianerList[removeElement+1:]...)
+	trackedContainers.TrackContainerList = append(trackedContainers.TrackContainerList[:removeElement], trackedContainers.TrackContainerList[removeElement+1:]...)
 
 	// write modified information to the tracked json file
-	data,err := json.MarshalIndent(trackedContianers, "", "\t")
+	data,err := json.MarshalIndent(trackedContainers, "", "\t")
 	if err != nil {
 		return err
 	}
@@ -156,7 +156,7 @@ func GetContainerInformation(ID string) (*TrackContainer, error) {
 	}
 	// Iterating through all tracked containers to get the container information
 	// of the ID passed through the function parameter
-	for _, container := range CurrentContainers.TrackcontianerList {
+	for _, container := range CurrentContainers.TrackContainerList {
 		if container.Container.ID == ID {
 			return &container, nil
 		}

client/trackcontainers/grouptrackcontainers.json

@@ -0,0 +1,8 @@
+{
+ "Groups": [
+  {
+   "ID": "grp72f16ae0-4f68-4245-b570-93fb31de887e",
+   "TrackContainer": null
+  }
+ ]
+}

client/trackcontainers/trackcontainers.json

@@ -1,41 +0,0 @@
-{
-	"TrackContainer": [
-		{
-			"ID": "858912730fb34f3cce38ef6d405e04519e44f50c2a496cd400e75aaa0def3c80",
-			"Container": {
-				"SSHUsername": "master",
-				"SSHPassword": "password",
-				"ID": "858912730fb34f3cce38ef6d405e04519e44f50c2a496cd400e75aaa0def3c80",
-				"TagName": "p2p-ubuntu",
-				"ImagePath": "/home/akilan/Documents/p2p-rendering-computation/server/docker/containers/docker-ubuntu-sshd/",
-				"Ports": {
-					"Port": [
-						{
-							"PortName": "SSH",
-							"InternalPort": 22,
-							"Type": "tcp",
-							"ExternalPort": 44269,
-							"Description": "SSH Port"
-						},
-						{
-							"PortName": "NoVNC",
-							"InternalPort": 5901,
-							"Type": "tcp",
-							"ExternalPort": 40725,
-							"Description": "NoVNC port"
-						},
-						{
-							"PortName": "NoVNC",
-							"InternalPort": 6081,
-							"Type": "tcp",
-							"ExternalPort": 40053,
-							"Description": "NoVNC port"
-						}
-					]
-				},
-				"GPU": "false"
-			},
-			"IpAddress": "0.0.0.0"
-		}
-	]
-}