Dockerized osrs.cx bot; includes Dockerfile and docker-compose.yml

Dockerfile

@@ -0,0 +1,23 @@
+# builder
+FROM golang:1.12 as builder
+
+RUN mkdir /osrscx
+WORKDIR /osrscx
+
+COPY go.mod .
+COPY go.sum .
+RUN go mod download
+
+COPY . .
+
+RUN CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -a -installsuffix cgo -o /go/bin/osrscx
+
+# runner
+FROM alpine:latest
+
+LABEL maintainer="Corey (notmeta) <https://github.com/notmeta/>"
+
+RUN apk --no-cache add ca-certificates bash
+COPY --from=builder /go/bin/osrscx /go/bin/osrscx
+
+ENTRYPOINT ["/go/bin/osrscx"]

docker-compose.yml

@@ -0,0 +1,16 @@
+version: "3.7"
+services:
+  redis_db:
+    image: redis
+    command: redis-server --appendonly yes
+    ports:
+      - "127.0.0.1:6379:6379"
+    volumes:
+      - /docker/redis-data:/data
+  bot:
+    build: .
+    links:
+      - redis_db
+    environment:
+      #      - DG_TOKEN=
+      - REDIS_IP=redis_db

main.go

@@ -27,6 +27,10 @@ func init() {
 	if Session.Token == "" {
 		flag.StringVar(&Session.Token, "t", "", "Discord Authentication Token")
 	}
+	util.RedisIp = os.Getenv("REDIS_IP")
+	if util.RedisIp == "" {
+		flag.StringVar(&util.RedisIp, "redis", "localhost", "Redis Store IP Address")
+	}
 }
 
 func main() {

util/store.go

@@ -5,19 +5,36 @@ import (
 	"github.com/bwmarrin/discordgo"
 	"github.com/go-redis/redis"
 	"log"
+	"time"
 )
 
 var Store *redis.Client
+var RedisIp string
 
 const RsnKeyFormat = "rsn:%s"
 
 func StoreInit() {
 	Store = redis.NewClient(&redis.Options{
-		Addr:     "localhost:6379",
+		Addr:     RedisIp + ":6379",
 		Password: "",
 		DB:       0,
 	})
-	_, err := Store.Ping().Result()
+
+	var err error
+	pingAttempts := 0
+
+	for pingAttempts < 5 {
+		_, err = Store.Ping().Result()
+
+		if err != nil {
+			log.Printf("Ping failed, waiting and trying again")
+			pingAttempts += 1
+			time.Sleep(5 * time.Second)
+		} else {
+			break
+		}
+	}
+
 	if err != nil {
 		log.Fatalf("Failed to connect to local redis container!\n%s", err)
 	} else {