server launches with proper config for itself and grafana, added storing config on exit or changes

cmd/server/main.go

@@ -1,17 +1,20 @@
 package main
 
 import (
+	"fmt"
 	_ "net/http"
 	_ "net/http/pprof"
+	"os/signal"
 	"strconv"
 	"strings"
+	"syscall"
+
 	//"flag"
 	//"log"
-    "os"
-    "fmt"
-    "FRMS/internal/pkg/logging"
 	"FRMS/internal/pkg/config"
+	"FRMS/internal/pkg/logging"
 	"FRMS/internal/pkg/server"
+	"os"
 )
 
 type coordinator interface {
@@ -29,6 +32,7 @@ func LoadConfig(fname string) Config {
 
 type Config interface {
 	UpdatePort(string, int) error
+	Store() error
 }
 
 func main() {
@@ -37,8 +41,10 @@ func main() {
 	// go func() {
 	// fmt.Println(http.ListenAndServe("localhost:6060",nil))
 	// }()
+	gracefulShutdown := make(chan os.Signal, 1)
+	signal.Notify(gracefulShutdown, syscall.SIGINT, syscall.SIGTERM)
 	conf := LoadConfig("server")
-    ch := make(chan error)
+	errCh := make(chan error)
 	// checking env
 	envVars := os.Environ()
 	for _, envString := range envVars {
@@ -61,10 +67,18 @@ func main() {
 	}
 
 	//fmt.Printf("Listening on %v\n", lport)
-    c := NewCoordinator(ch)
+	c := NewCoordinator(errCh)
 	go c.Start()
-    fmt.Println("Server Active!")
 	logging.Debug(logging.DStart, "CCO 01 Server started")
-    err := <-ch // blocking to wait for any errors and keep alive otherwise
+	select {
+	case err := <-errCh: // blocking to wait for any errors and keep alive otherwise
+		panic(err)
+	case <-gracefulShutdown:
+		err := conf.Store()
+		if err != nil {
 			panic(err)
 		}
+		fmt.Println("Stored config successfully. Exiting...")
+		os.Exit(0)
+	}
+}

docker-compose.yml

@@ -8,12 +8,16 @@ services:
         ports:
             - "2022:2022"
             - "2023:2023"
+            - "2024:2024"
         volumes:
             - ./logs:/log
-            - server-config:/configs
+            - server-config:/etc/frms/config
         environment:
             - LOGTYPE=SERVER
             - VERBOSE=1
+            - LIS_PORT=2022
+            - REACTOR_PORT=2023
+            - TUI_PORT=2024
         depends_on:
             - db
     db:
@@ -32,7 +36,7 @@ services:
             - DOCKER_INFLUXDB_INIT_USERNAME=admin
             - DOCKER_INFLUXDB_INIT_PASSWORD=F0r3l1ght
             - DOCKER_INFLUXDB_INIT_ORG=ForeLight
-            - DOCKER_INFLUXDB_INIT_BUCKET=default
+            - DOCKER_INFLUXDB_INIT_BUCKET=test
     grafana:
         image: grafana/grafana-oss:latest
         ports:
@@ -40,6 +44,8 @@ services:
         volumes:
             - grafana-provisioning:/etc/grafana/provisioning
             - grafana-data:/var/lib/grafana
+        depends_on:
+            - db
 volumes:
     grafana-data:
     grafana-provisioning:

influxdb/startup/influxsetup.sh

@@ -1,12 +1,14 @@
 #!/bin/bash
 
+#DB_URL=$(cat "$INFLUX_CONFIGS_PATH" | awk '/url/ {print $3}' | head -n 1)
+DB_URL="frms-db-1:8086"
+
 TOKEN=$(influx auth list --user ${DOCKER_INFLUXDB_INIT_USER_ID} --hide-headers | cut -f 3)
 ORG=$(influx org list | grep ${DOCKER_INFLUXDB_INIT_ORG_ID} | awk '{print $2}')
 # creating starting server YAML
-echo -e "server:\n\tdb-url:${INFLUX_HOST}\n\tdb-org:${ORG}\n\tdb-token:${TOKEN}" >/configs/server.yaml;
+echo -e "server:\n    db-url: ${DB_URL}\n    db-org: ${ORG}\n    db-token: ${TOKEN}" >/configs/server.yaml;
 
 # creating grafana yaml
 influx user create -n grafana -o ${ORG}
-GRAFANA_USER_ID=$(influx user list --hide-headers --name grafana)
+GRAFANA_TOKEN=$(influx auth list --user grafana --hide-headers | cut -f 3)
-GRAFANA_TOKEN=$(influx auth list --user ${GRAFANA_USER_ID} --hide-headers | cut -f 3)
+echo -e "apiVersion: 1\n\ndeleteDatasources:\n\ndatasources:\n  - name: INFLUXDB\n    type: influxdb\n    access: proxy\n    url: ${DB_URL}\n    jsonData:\n        httpMode: GET\n        httpHeaderName1: 'Authorization'\n    secureJsonData:\n        httpHeaderValue1: 'Token ${GRAFANA_TOKEN}'" >/grafana/datasources/datasource.yaml
-echo -e "datasources:\n\t- name: INFLUXDB\n\ttype: influxdb\n\turl:${INFLUX_HOST}\n\tdatabase: test\n\t jsonData:\n\t\thttpMode: GET\n\t\thttpHeaderName1: 'Authorization'\n\tsecureJsonData:\n\t\thttpHeaderValue1: 'Token ${GRAFANA_TOKEN}'" 

internal/pkg/config/server.go

@@ -3,13 +3,14 @@ package config
 // package serves to store/load config files for server
 
 import (
-    "fmt"
-    "strconv"
-    "github.com/spf13/viper"
 	"FRMS/internal/pkg/logging"
 	"errors"
-    "sync"
+	"fmt"
+	"strconv"
 	"strings"
+	"sync"
+
+	"github.com/spf13/viper"
 	//"os"
 	//"log"
 	//"os/exec"
@@ -44,15 +45,17 @@ func Load(fname string) {
 	C = &Config{}
 	viper.SetConfigName(fname)
 	viper.SetConfigType("yaml")
-    viper.AddConfigPath("./configs")
+	viper.AddConfigPath("/etc/frms/config") //
-    //viper.AddConfigPath("../../internal/configs")
 	// defaults
 	viper.SetDefault("server.db-org", "ForeLight")
 	viper.SetDefault("server.db-url", "http://192.168.100.2:8086")
 	// unmarshalling
-    viper.ReadInConfig() // the fact i never did this is infuriating
+	err := viper.ReadInConfig() // the fact i never did this is infuriating
+	if err != nil {
+		panic(err)
+	}
 	logging.Debug(logging.DStart, "CON Loaded configs from %v", viper.ConfigFileUsed())
-    err := viper.Unmarshal(C)
+	err = viper.Unmarshal(C)
 	if err != nil {
 		logging.Debug(logging.DError, "Cannot unmarshall Server! %v", err)
 		panic(err)
@@ -115,7 +118,8 @@ func (c *Config) UpdateURL(url string) error {
 		return errors.New("String cannot be empty!")
 	}
 	c.Server.URL = url
-    return viper.WriteConfig()
+	viper.Set("server.db-url", url)
+	return viper.WriteConfigAs(viper.ConfigFileUsed())
 }
 
 func (c *Config) UpdateOrg(org string) error {
@@ -125,7 +129,8 @@ func (c *Config) UpdateOrg(org string) error {
 		return errors.New("String cannot be empty!")
 	}
 	c.Server.Orginization = org
-    return viper.WriteConfig()
+	viper.Set("server.db-org", org)
+	return viper.WriteConfigAs(viper.ConfigFileUsed())
 }
 
 func (c *Config) UpdatePort(pName string, port int) error {
@@ -135,8 +140,13 @@ func (c *Config) UpdatePort(pName string, port int) error {
 		// OOB
 		return fmt.Errorf("Port %d out of bounds! [1024,65535]", port)
 	}
+	if c.Server.Ports == nil {
+		c.Server.Ports = make(map[string]int)
+	}
 	c.Server.Ports[pName] = port
-    return nil
+	pname := fmt.Sprintf("server.ports.%s", pName)
+	viper.Set(pname, port)
+	return viper.WriteConfigAs(viper.ConfigFileUsed())
 }
 
 func (c *Config) UpdateServerToken(token string) error {
@@ -146,7 +156,8 @@ func (c *Config) UpdateServerToken(token string) error {
 		return errors.New("String cannot be empty!")
 	}
 	c.Server.Token = token
-    return viper.WriteConfig()
+	viper.Set("server.token", token)
+	return viper.WriteConfigAs(viper.ConfigFileUsed())
 }
 
 func (c *Config) UpdateReactorClient(id uint32, bucket, token string) error {
@@ -163,6 +174,13 @@ func (c *Config) UpdateReactorClient(id uint32, bucket, token string) error {
 		reactor.Token = token
 		c.Reactors[sid] = reactor
 	}
-    return viper.WriteConfig()
+	reactorbucket := fmt.Sprintf("%s.db-bucket", id)
+	reactortoken := fmt.Sprintf("%s.db-token", id)
+	viper.Set(reactorbucket, bucket)
+	viper.Set(reactortoken, token)
+	return viper.WriteConfigAs(viper.ConfigFileUsed())
 }
 
+func (c *Config) Store() error {
+	return viper.WriteConfigAs(viper.ConfigFileUsed())
+}

internal/pkg/influxdb/client.go

@@ -7,6 +7,7 @@ import (
 
 type DBClient struct {
     URL string
+	Org string
     Bucket string
     Token string
  //   Client *influxdb2.Client
@@ -17,18 +18,29 @@ type DBAdmin struct {
     *DBClient
 }
 
-func NewDBClient(url, bucket, token string) *DBClient {
+func NewDBClient(url, org, token string) *DBClient {
-    db := &DBClient{URL:url, Bucket:bucket, Token:token}
+	db := &DBClient{URL:url, Org:org, Token:token}
     return db
 }
 
-func NewDBAdmin(url, bucket, token string) *DBAdmin {
+func NewDBAdmin(url, org, token string) *DBAdmin {
     admin := &DBAdmin{}
-    admin.DBClient = NewDBClient(url, bucket, token)
+    admin.DBClient = NewDBClient(url, org, token)
     return admin
 }
+
 // base level funcs
 func (d *DBClient) Start() {
     // connect to DB
-  //  d.Client = influxdb2.NewClient(d.URL,d.Token)
 }
+
+func (d *DBAdmin) GetReactorClient(id string) (string, string, error) {
+	// given an id returns associated token and bucket
+	client := influxdb2.NewClient(d.URL,d.Token)
+	defer client.Close()
+	bucket, err := client.BucketsAPI().FindBucketByName(context.Background(),id)
+	if err != nil {
+		return "", "", err
+	}
+	if d.ReactorExists(id) {
+		// get corresponding reactor token and bucket

internal/pkg/server/coordinator.go

@@ -1,17 +1,18 @@
 package server
 
 import (
-    "sync"
-    "fmt"
-    "net"
-    "context"
-    "errors"
-    "FRMS/internal/pkg/logging"
-    "google.golang.org/grpc"
-    pb "FRMS/internal/pkg/grpc"
 	"FRMS/internal/pkg/config"
+	pb "FRMS/internal/pkg/grpc"
+	"FRMS/internal/pkg/influxdb"
 	_ "FRMS/internal/pkg/influxdb"
+	"FRMS/internal/pkg/logging"
+	"context"
+	"errors"
+	"fmt"
+	"net"
+	"sync"
 
+	"google.golang.org/grpc"
 )
 
 // this package creates the central coordiantor and sub coordiantors for clients
@@ -33,26 +34,25 @@ type Config interface { // PROPOSED RENAMING: ServerConfig to avoid confusion w/
 	GetReactorClient(uint32) (string, string, error) // ret (bucket, token, err)
 	// setters
 	// save on write
-    UpdateURL(string)                               error
+	//UpdateURL(string) error
-    UpdateOrg(string)                               error
+	//UpdateOrg(string) error
-    UpdateServerToken(string)                       error
+	//UpdateServerToken(string) error
 	UpdateReactorClient(uint32, string, string) error // call (id, bucket, token)
 }
 
 // db client interface
 type DB interface {
 	// getters (all create if doesnt exist)
-    GetToken() (string, error)      // returns admin token (Creates if it doesnt exist)
+	//GetToken() (string, error)                       // returns admin token (Creates if it doesnt exist)
-    GetReactorClient(uint32) (string, string, error) // returns (bucket, token, err)
+	GetReactorClient(string) (string, string, error) // returns (bucket, token, err)
 	// delete
-    DeleteReactorClient(uint32) error // removes client token but maintains bucket
+	DeleteReactorClient(string) error    // removes client token but maintains bucket
-    PurgeReactorClientData(uint32) error // perm deletes all assocaited reactor data (token, bucket etc)
+	PurgeReactorClientData(string) error // perm deletes all assocaited reactor data (token, bucket etc)
 }
 
-/*func NewDBClient() DBClient {
+func NewDBAdmin(url, org, token string) DB {
-    return influxdb.NewServerClient()
+	return influxdb.NewDBAdmin(token, org, url)
-}*/
+}
-
 
 type CentralCoordinator struct {
 	ClientConnections *ClientPacket
@@ -102,23 +102,11 @@ func (c *CentralCoordinator) LoadCfg() {
 	if err != nil {
 		logging.Debug(logging.DError, "CCO 01 Err: %v", err)
 		c.Err <- err
-    } else if token == "" {
-        if token, err = c.DB.GetToken(); err != nil {
-            logging.Debug(logging.DError,"CCO 01 Err: %v", err)
-            c.Err <-err
-        }
-        c.Config.UpdateServerToken(token)
 	}
 	org, err := c.Config.GetOrg()
 	if err != nil {
 		logging.Debug(logging.DError, "CCO 01 Err: %v", err)
 		c.Err <- err
-    } else if token == "" {
-        if token, err = c.DB.GetToken(); err != nil {
-            logging.Debug(logging.DError,"CCO 01 Err: %v", err)
-            c.Err <-err
-        }
-        c.Config.UpdateOrg(org)
 	}
 }
 
@@ -170,7 +158,6 @@ type ManagerInterface interface {
 	Register()
 }
 
-
 type GeneralManager interface {
 	// used by sub coordinator to interact with manager
 	Start()
@@ -354,4 +341,3 @@ func (t *tuiCoordinator) DeleteReactorDevice(ctx context.Context, req *pb.Delete
 	// TODO
 	return &pb.DeleteReactorDeviceResponse{}, nil
 }
-