multiple dragonflydb instances just creates more overhead, actually

phosphorus/srv/docker/sharkey/compose.yaml

@@ -96,12 +96,8 @@ services:
       - ./media:/sharkey/.config
       - ./default.yml:/sharkey/.config/default.yml:ro
 
-  # "redis is for caching" WRONG!!! it is long term persistent storage in misskey. for some reason. "caching".
-  # do NOT wipe redis or you lose a bunch of actual data like timelines and notifications.
-  # also, we use dragonflydb over redis. personal preference, better performance and stability.
-
-  # general dfdb
-  dragonfly:
+  # dragonflydb (redis), as is required by misskey for a good amount of data
+  dragonflydb:
     image: docker.dragonflydb.io/dragonflydb/dragonfly
     restart: always
     ulimits:
@@ -117,10 +113,10 @@ services:
       DFLY_df_snapshot_format: false # misskey doesn't know how to handle dfdb's format
       DFLY_dir: '/data' # directory with the snapshot/data
     volumes:
-      - ./dragonfly/general:/data
+      - ./dfdb:/data
 
-  # job queue dfdb
-  dragonfly-queue:
+  # dragonflydb, for caching and required by *key for storing important data
+  dfdb:
     image: docker.dragonflydb.io/dragonflydb/dragonfly
     restart: always
     ulimits:
@@ -128,34 +124,16 @@ services:
     networks:
       - sharkey
     environment:
-      DFLY_port: 6380
+      # these envvars are important in order for dragonflydb/misskey to interact with each other properly, and to load and save all data properly
       DFLY_snapshot_cron: '* * * * *'
       DFLY_version_check: false
-      DFLY_default_lua_flags: allow-undeclared-keys
-      DFLY_dbfilename: 'dump.rdb'
-      DFLY_df_snapshot_format: false
-      DFLY_dir: '/data'
+      DFLY_default_lua_flags: allow-undeclared-keys # without this, dfdb would immediately complain loading data
+      DFLY_dbfilename: 'dump.rdb' # misskey expects this
+      DFLY_df_snapshot_format: false # misskey doesn't know how to handle dfdb's format
+      DFLY_dir: '/data' # directory with the snapshot/data
     volumes:
-      - ./dragonfly/queue:/data
-
-  # timelines dfdb
-  dragonfly-tl:
-    image: docker.dragonflydb.io/dragonflydb/dragonfly
-    restart: always
-    ulimits:
-      memlock: -1
-    networks:
-      - sharkey
-    environment:
-      DFLY_port: 6381
-      DFLY_snapshot_cron: '* * * * *'
-      DFLY_version_check: false
-      DFLY_default_lua_flags: allow-undeclared-keys
-      DFLY_dbfilename: 'dump.rdb'
-      DFLY_df_snapshot_format: false
-      DFLY_dir: '/data'
-    volumes:
-      - ./dragonfly/timelines:/data
+      #- ./dragonfly/general:/data
+      - ./dfdb:/data
 
 networks:
   db:

phosphorus/srv/docker/sharkey/default.yml

@@ -141,7 +141,7 @@ dbReplications: false
 #───┘ Redis configuration └─────────────────────────────────────
 
 redis:
-  host: dragonfly
+  host: dfdb
   port: 6379
   #family: 0  # 0=Both, 4=IPv4, 6=IPv6
   #pass: example-pass
@@ -160,9 +160,9 @@ redis:
 #  # You can specify more ioredis options...
 #  #username: example-username
 
-redisForJobQueue:
-  host: dragonfly-queue
-  port: 6380
+#redisForJobQueue:
+#  host: dragonfly-queue
+#  port: 6380
 #  #family: 0  # 0=Both, 4=IPv4, 6=IPv6
 #  #pass: example-pass
 #  #prefix: example-prefix
@@ -170,9 +170,9 @@ redisForJobQueue:
 #  # You can specify more ioredis options...
 #  #username: example-username
 
-redisForTimelines:
-  host: dragonfly-tl
-  port: 6381
+#redisForTimelines:
+#  host: dragonfly-tl
+#  port: 6381
 #  #family: 0  # 0=Both, 4=IPv4, 6=IPv6
 #  #pass: example-pass
 #  #prefix: example-prefix