feat: add TLS support for Redis

.docker.env

@@ -23,6 +23,8 @@ REDIS_HOST=redis
 REDIS_PORT=6379
 REDIS_PASSWORD=
 REDIS_DB=
+REDIS_SSL=false
+REDIS_KEYPREFIX=
 
 # Disable registration
 DISALLOW_REGISTRATION=false

.example.env

@@ -25,6 +25,10 @@ REDIS_PASSWORD=
 # Optional: The number for Redis database, between 0 and 15. Defaults to 0.
 # If you don't know what this is, then you probably don't need to change it.
 REDIS_DB=0
+# Optional: Add rediss:// to the connection string
+REDIS_SSL=false
+# Optional: Prefix for keys in Redis
+REDIS_KEYPREFIX=
 
 # Disable registration
 DISALLOW_REGISTRATION=false

server/env.ts

@@ -20,6 +20,8 @@ const env = cleanEnv(process.env, {
   REDIS_PORT: num({ default: 6379 }),
   REDIS_PASSWORD: str({ default: "" }),
   REDIS_DB: num({ default: 0 }),
+  REDIS_SSL: bool({ default: false }),
+  REDIS_KEYPREFIX: str({ default: "" }),
   USER_LIMIT_PER_DAY: num({ default: 50 }),
   NON_USER_COOLDOWN: num({ default: 10 }),
   DEFAULT_MAX_STATS_PER_LINK: num({ default: 5000 }),

server/redis.ts

@@ -6,7 +6,9 @@ const client = new Redis({
   host: env.REDIS_HOST,
   port: env.REDIS_PORT,
   db: env.REDIS_DB,
-  ...(env.REDIS_PASSWORD && { password: env.REDIS_PASSWORD })
+  ...(env.REDIS_PASSWORD && { password: env.REDIS_PASSWORD }),
+  ...(env.REDIS_SSL && { tls: {} }),
+  ...(env.REDIS_KEYPREFIX && { keyPrefix: env.REDIS_KEYPREFIX })
 });
 
 export default client;