✨ add one instance of cache for all the service (#19)

* ✨ add one instance of cache for all the service

* 🐛 fix the healthy issue

* 🐛 fix lint

* 🍱 upgrade codebase

* 🍱 fix lint

* 🐛 when there is master node shut down

* Set live mode as default, clean docker and recipes

* Restore live mode in readme as default

* 🍱 add channel management

* 🍱 order funcs

* 🍱 revert service in docker compose

* ✨ logLevel added + cache put out the bouncer

* 🍱 fix

* 🍱 fix

* 🍱 fix

Co-authored-by: MathieuHa <mathieu@hanotaux.fr>

pkg/cache/cache.go

@@ -0,0 +1,39 @@
+package cache
+
+import (
+	"fmt"
+
+	ttl_map "github.com/leprosus/golang-ttl-map"
+
+	logger "github.com/maxlerebourg/crowdsec-bouncer-traefik-plugin/pkg/logger"
+)
+const (
+	cacheBannedValue        = "t"
+	cacheNoBannedValue      = "f"
+)
+
+var cache = ttl_map.New()
+
+// Get Decision check in the cache if the IP has the banned / not banned value.
+// Otherwise return with an error to add the IP in cache if we are on.
+func GetDecision(clientIP string) (bool, error) {
+	banned, isCached := cache.Get(clientIP)
+	bannedString, isValid := banned.(string)
+	if isCached && isValid && len(bannedString) > 0 {
+		return bannedString == cacheBannedValue, nil
+	}
+	return false, fmt.Errorf("no cache data")
+}
+
+func SetDecision(clientIP string, isBanned bool, duration int64) {
+	if isBanned {
+		logger.Debug(fmt.Sprintf("%v banned", clientIP))
+		cache.Set(clientIP, cacheBannedValue, duration)
+	} else {
+		cache.Set(clientIP, cacheNoBannedValue, duration)
+	}
+}
+
+func DeleteDecision(clientIP string) {
+	cache.Del(clientIP)
+}