diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 378d1ad47fc2bf10bdea37dbc309146cb1fd732f..b64bea6f80b6b17c0a4824094b1862bff312c464 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -9,12 +9,20 @@ services:
before_script:
- apk add --no-cache yq
- docker login -u $CI_REGISTRY_USER -p $CI_REGISTRY_PASSWORD $CI_REGISTRY
+ - VERSION=`yq eval '.info.version' openapi.yaml`
-build:
+build_app:
stage: build
script:
- - VERSION=`yq eval '.info.version' openapi.yaml`
- docker pull $CI_REGISTRY_IMAGE:latest || true
- docker build --cache-from $CI_REGISTRY_IMAGE:latest --tag $CI_REGISTRY_IMAGE:$VERSION --tag $CI_REGISTRY_IMAGE:latest .
- docker push $CI_REGISTRY_IMAGE:$VERSION
- docker push $CI_REGISTRY_IMAGE:latest
+
+build_online_counter:
+ stage: build
+ script:
+ - docker pull $CI_REGISTRY_IMAGE:counter-latest || true
+ - docker build --cache-from $CI_REGISTRY_IMAGE:counter-latest --tag $CI_REGISTRY_IMAGE:counter-$VERSION --tag $CI_REGISTRY_IMAGE:counter-latest ./tools/online-counter
+ - docker push $CI_REGISTRY_IMAGE:online-$VERSION
+ - docker push $CI_REGISTRY_IMAGE:online-latest
diff --git a/openapi.yaml b/openapi.yaml
index 4a2544866ccf606610569ea19899f1db64d757e6..db7b77cd6234661c9d3ac5bc9680cf1c408a2ace 100644
--- a/openapi.yaml
+++ b/openapi.yaml
@@ -1,7 +1,7 @@
openapi: 3.0.3
info:
- version: "2.9.1"
+ version: "3.0.0"
title: CF Online
description: CF Online
license:
diff --git a/tools/online-counter/Dockerfile b/tools/online-counter/Dockerfile
new file mode 100644
index 0000000000000000000000000000000000000000..4995942bdf59f70fa7c839f919fcd427f8b32bc2
--- /dev/null
+++ b/tools/online-counter/Dockerfile
@@ -0,0 +1,24 @@
+# syntax=docker/dockerfile:1
+
+FROM golang:1.17-alpine AS build
+
+WORKDIR /app
+
+COPY go.mod ./
+COPY go.sum ./
+RUN go mod download
+
+COPY *.go ./
+
+RUN go build -o /counter
+
+FROM alpine
+
+WORKDIR /
+
+COPY --from=build /counter /counter
+
+USER nobody:nobody
+
+ENTRYPOINT ["/counter"]
+
diff --git a/tools/online-counter/go.mod b/tools/online-counter/go.mod
new file mode 100644
index 0000000000000000000000000000000000000000..767a39b1dfca1b77c7742112984e9831e1871075
--- /dev/null
+++ b/tools/online-counter/go.mod
@@ -0,0 +1,5 @@
+module online
+
+go 1.13
+
+require github.com/go-redis/redis/v8 v8.11.4 // indirect
diff --git a/tools/online-counter/go.sum b/tools/online-counter/go.sum
new file mode 100644
index 0000000000000000000000000000000000000000..d8b13c35713592c9af9a9bded4a4e9cd8bd97a18
--- /dev/null
+++ b/tools/online-counter/go.sum
@@ -0,0 +1,89 @@
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diff --git a/tools/online-counter/online.go b/tools/online-counter/online.go
new file mode 100644
index 0000000000000000000000000000000000000000..41d27a80300be865e5193505dfeb00fb1e0ece2e
--- /dev/null
+++ b/tools/online-counter/online.go
@@ -0,0 +1,120 @@
+package main
+
+import (
+ "fmt"
+ "github.com/go-redis/redis/v8"
+ "math"
+ "os"
+ "strings"
+ "time"
+)
+
+type eventCounts struct {
+ All int
+ Members int
+ GroupSizeFull int
+ GroupSizeHalf int
+}
+
+const tarpitFactor = 1000.0
+
+func main() {
+
+ // konfigurace redis klienta
+ options, err := redis.ParseURL(os.Getenv("CFG_REDIS"))
+ if err != nil {
+ panic(err)
+ }
+
+ // redis klient a kontext
+ rdb := redis.NewClient(options)
+ ctx := rdb.Context()
+
+ // ukonceni prace redis klienta
+ defer func() {
+ err := rdb.Close()
+ if err != nil {
+ panic(err)
+ }
+ }()
+
+ lastPub := make(map[string]time.Time)
+
+ // main loop
+ ticker := time.Tick(time.Second * 1)
+
+ for now := range ticker {
+
+ online := make(map[string]eventCounts)
+
+ iter := rdb.Scan(ctx, 0, "live:*", 0).Iterator()
+
+ for iter.Next(ctx) {
+ key := strings.Split(iter.Val(), ":")
+
+ eventID := key[1]
+ isMember := key[2] == "1"
+
+ // pocitani
+ event := online[eventID]
+ event.All++
+ if isMember {
+ event.Members++
+ }
+ event.GroupSizeFull, event.GroupSizeHalf = member_group_size(event.All)
+
+ online[key[1]] = event
+ }
+
+ if err := iter.Err(); err != nil {
+ panic(err)
+ }
+
+ // publsh counts
+ for event, count := range online {
+
+ elapsed := now.Sub(lastPub[event]).Round(time.Second).Seconds()
+ if elapsed < float64(count.All)/tarpitFactor {
+ break
+ }
+
+ fmt.Println(elapsed)
+
+ // tady muze byt next
+ lastPub[event] = now
+
+ topic := fmt.Sprintf("online:%s", event)
+ message := fmt.Sprintf("%v", count)
+
+ if os.Getenv("DEBUG") != "" {
+ fmt.Println(topic, message)
+ }
+
+ err = rdb.Publish(ctx, topic, message).Err()
+ if err != nil {
+ panic(err)
+ }
+ }
+ }
+}
+
+func member_group_size(count int) (full int, half int) {
+
+ min := float64(count) / 100
+ max := float64(count) / 5
+
+ group := 2 * math.Sqrt(float64(count))
+
+ if group < min {
+ group = min
+ }
+
+ if group > max {
+ group = max
+ }
+
+ full = int(math.Ceil(group))
+ half = int(math.Ceil(group / 2))
+
+ return
+}