feat(hocon): convert config format of rpc and log to hocon

apps/emqx/etc/emqx.conf

@@ -316,13 +316,15 @@ node: {
     backtrace_depth: 16
 }
 
+##--------------------------------------------------------------------
+## RPC
+##--------------------------------------------------------------------
 
-## CONFIG_SECTION_BGN=rpc ======================================================
+rpc: {
-
   ## RPC Mode.
   ##
   ## Value: sync | async
-rpc.mode = async
+  mode: async
 
   ## Max batch size of async RPC requests.
   ##
@@ -330,7 +332,7 @@ rpc.mode = async
   ## Zero or negative value disables rpc batching.
   ##
   ## NOTE: RPC batch won't work when rpc.mode = sync
-rpc.async_batch_size = 256
+  async_batch_size: 256
 
   ## RPC port discovery
   ##
@@ -343,7 +345,7 @@ rpc.async_batch_size = 256
   ##   then the listening port will be `5370 + <N>`
   ##
   ## Defaults to `stateless`.
-rpc.port_discovery = stateless
+  port_discovery: stateless
 
   ## TCP port number for RPC server to listen on.
   ##
@@ -352,68 +354,70 @@ rpc.port_discovery = stateless
   ## NOTE: All nodes in the cluster should agree to this same config.
   ##
   ## Value: Port [1024-65535]
-#rpc.tcp_server_port = 5369
+  ## tcp_server_port: 5369
 
   ## Number of outgoing RPC connections.
   ##
   ## Value: Interger [0-256]
-## Default = 1
+  ## Default: 1
-#rpc.tcp_client_num = 1
+  ## tcp_client_num: 1
 
   ## RCP Client connect timeout.
   ##
   ## Value: Seconds
-rpc.connect_timeout = 5s
+  connect_timeout: 5s
 
   ## TCP send timeout of RPC client and server.
   ##
   ## Value: Seconds
-rpc.send_timeout = 5s
+  send_timeout: 5s
 
   ## Authentication timeout
   ##
   ## Value: Seconds
-rpc.authentication_timeout = 5s
+  authentication_timeout: 5s
 
   ## Default receive timeout for call() functions
   ##
   ## Value: Seconds
-rpc.call_receive_timeout = 15s
+  call_receive_timeout: 15s
 
   ## Socket idle keepalive.
   ##
   ## Value: Seconds
-rpc.socket_keepalive_idle = 900s
+  socket_keepalive_idle: 900s
 
   ## TCP Keepalive probes interval.
   ##
   ## Value: Seconds
-rpc.socket_keepalive_interval = 75s
+  socket_keepalive_interval: 75s
 
   ## Probes lost to close the connection
   ##
   ## Value: Integer
-rpc.socket_keepalive_count = 9
+  socket_keepalive_count: 9
 
   ## Size of TCP send buffer.
   ##
   ## Value: Bytes
-rpc.socket_sndbuf = 1MB
+  socket_sndbuf: 1MB
 
   ## Size of TCP receive buffer.
   ##
   ## Value: Seconds
-rpc.socket_recbuf = 1MB
+  socket_recbuf: 1MB
 
   ## Size of user-level software socket buffer.
   ##
   ## Value: Seconds
-rpc.socket_buffer = 1MB
+  socket_buffer: 1MB
+}
 
-## CONFIG_SECTION_END=rpc ======================================================
+##--------------------------------------------------------------------
-
+## Log
-## CONFIG_SECTION_BGN=logger ===================================================
+##--------------------------------------------------------------------
 
+log: {
   ## Where to emit the logs.
   ## Enable the console (standard output) logs.
   ##
@@ -421,7 +425,7 @@ rpc.socket_buffer = 1MB
   ## - file: write logs only to file
   ## - console: write logs only to standard I/O
   ## - both: write logs both to file and standard I/O
-log.to = file
+  to: file
 
   ## The log severity level.
   ##
@@ -431,19 +435,19 @@ log.to = file
   ##       this level will be logged.
   ##
   ## Default: warning
-log.level = warning
+  level: warning
 
   ## Timezone offset to display in logs
   ## Value:
   ##  - "system" use system zone
   ##  - "utc" for Universal Coordinated Time (UTC)
   ##  - "+hh:mm" or "-hh:mm" for a specified offset
-log.time_offset = system
+  time_offset: system
 
   ## The dir for log files.
   ##
   ## Value: Folder
-log.dir = "{{ platform_log_dir }}"
+  dir: "{{ platform_log_dir }}"
 
   ## The log filename for logs of level specified in "log.level".
   ##
@@ -452,49 +456,49 @@ log.dir = "{{ platform_log_dir }}"
   ##
   ## Value: String
   ## Default: emqx.log
-log.file = emqx.log
+  file: emqx.log
 
   ## Limits the total number of characters printed for each log event.
   ##
   ## Value: Integer
   ## Default: No Limit
-#log.chars_limit = 8192
+  ## chars_limit: 8192
 
   ## Maximum depth for Erlang term log formatting
   ## and Erlang process message queue inspection.
   ##
   ## Value: Integer or 'unlimited' (without quotes)
   ## Default: 80
-#log.max_depth = 80
+  ## max_depth: 80
 
   ## Log formatter
   ## Value: text | json
-#log.formatter = text
+  ## formatter: text
 
   ## Log to single line
   ## Value: Boolean
-#log.single_line = true
+  ## single_line: true
 
   ## Enables the log rotation.
   ## With this enabled, new log files will be created when the current
-## log file is full, max to `log.rotation.size` files will be created.
+  ## log file is full, max to `rotation.size` files will be created.
   ##
   ## Value: on | off
   ## Default: on
-log.rotation.enable = on
+  rotation.enable: on
 
   ## Maximum size of each log file.
   ##
   ## Value: Number
   ## Default: 10M
   ## Supported Unit: KB | MB | GB
-log.rotation.size = 10MB
+  rotation.size: 10MB
 
   ## Maximum rotation count of log files.
   ##
   ## Value: Number
   ## Default: 5
-log.rotation.count = 5
+  rotation.count: 5
 
   ## To create additional log files for specific log levels.
   ##
@@ -505,8 +509,8 @@ log.rotation.count = 5
   ## Note: Log files for a specific log level will only contain all the logs
   ##       that higher than or equal to that level
   ##
-#log.info.file  = info.log
+  ## info.file: info.log
-#log.error.file = error.log
+  ## error.file: error.log
 
   ## The max allowed queue length before switching to sync mode.
   ##
@@ -515,7 +519,7 @@ log.rotation.count = 5
   ##
   ## Default: 100
   ##
-#log.sync_mode_qlen = 100
+  ## sync_mode_qlen: 100
 
   ## The max allowed queue length before switching to drop mode.
   ##
@@ -525,7 +529,7 @@ log.rotation.count = 5
   ##
   ## Default: 3000
   ##
-#log.drop_mode_qlen = 3000
+  ## drop_mode_qlen: 3000
 
   ## The max allowed queue length before switching to flush mode.
   ##
@@ -536,7 +540,7 @@ log.rotation.count = 5
   ##
   ## Default: 8000
   ##
-#log.flush_qlen = 8000
+  ## flush_qlen: 8000
 
   ## Kill the log handler when it gets overloaded.
   ##
@@ -548,7 +552,7 @@ log.rotation.count = 5
   ##
   ## Default: on
   ##
-#log.overload_kill = on
+  ## overload_kill: on
 
   ## The max allowed queue length before killing the log hanlder.
   ##
@@ -558,7 +562,7 @@ log.rotation.count = 5
   ##
   ## Default: 20000
   ##
-#log.overload_kill_qlen = 20000
+  ## overload_kill_qlen: 20000
 
   ## The max allowed memory size before killing the log hanlder.
   ##
@@ -568,7 +572,7 @@ log.rotation.count = 5
   ##
   ## Default: 30MB
   ##
-#log.overload_kill_mem_size = 30MB
+  ## overload_kill_mem_size: 30MB
 
   ## Restart the log hanlder after some seconds.
   ##
@@ -578,7 +582,7 @@ log.rotation.count = 5
   ##
   ## Default: 5s
   ##
-#log.overload_kill_restart_after = 5s
+  ## overload_kill_restart_after: 5s
 
   ## Max burst count and time window for burst control.
   ##
@@ -600,9 +604,8 @@ log.rotation.count = 5
   ## Value: MaxBurstCount,TimeWindow
   ## Default: disabled
   ##
-#log.burst_limit = "20000, 1s"
+  ## burst_limit: "20000, 1s"
-
+}
-## CONFIG_SECTION_END=logger ===================================================
 
 ##--------------------------------------------------------------------
 ## Authentication/Access Control