LoRaServer 笔记 1.4 配置运行

前言

编译之后，这篇笔记介绍如何进行必要的配置，并让几个组件运行起来，包含实践过程一些小问题的解决记录。

小能手最近在学习 ChirpStack 项目，应该是最有影响力的 LoRaWAN 服务器开源项目。它组件丰富，代码可读性强，是个很好的学习资料。更多学习笔记，可点此查看。

1 Gateway Bridge

1.1 生成配置文件

生成默认配置文件，我比较喜欢放在当前工程目录。目前没使用 basic station 的话，倒是没什么好改的。

# ./build/lora-gateway-bridge configfile > lora-gateway-bridge.toml
# vim lora-gateway-bridge.toml

1.2 启动 mqtt broker

./build/lora-gateway-bridge 
INFO[0000] starting LoRa Gateway Bridge                  docs="https://www.loraserver.io/lora-gateway-bridge/" version=3.0.0-test.3
INFO[0000] backend/semtechudp: starting gateway udp listener  addr="0.0.0.0:1700"
ERRO[0000] integration/mqtt: connection error            error="Network Error : dial tcp 127.0.0.1:1883: connect: connection refused"

修改 mosquitto 的配置文件，启用默认监听端口1883。然后启动服务。

# vim /etc/mosquitto/mosquitto.conf
# systemctl start mosquitto

1.3 运行

# ./build/lora-gateway-bridge 
INFO[0000] starting LoRa Gateway Bridge                  docs="https://www.loraserver.io/lora-gateway-bridge/" version=3.0.0-test.3
INFO[0000] backend/semtechudp: starting gateway udp listener  addr="0.0.0.0:1700"INFO[0000] integration/mqtt: connected to mqtt broker

2 loraserver

2.1 postgresql 帐户登录

# psql -h localhost -U loraserver_ns -W loraserver_ns            Password for user loraserver_ns: 
psql: FATAL:  Ident authentication failed for user "loraserver_ns"

明明按照教程一步步设置了密码，怎么就不行了呢？

By default PostgreSQL uses IDENT-based authentication and this will never allow you to login via -U and -W options. Allow username and password based authentication from your application by appling ‘trust’ as the authentication method for the JIRA database user. You can do this by modifying the pg_hba.conf file.

原来默认情况下，不能使用 -U -W 选项进行登录。为此，我们需要将 pg_hba.conf 中的认证方法调整为 ‘trust’。

# find / -name pg_hba.conf/var/lib/docker/volumes/loraserver-docker_postgresqldata/_data/pg_hba.conf
/var/lib/pgsql/11/data/pg_hba.conf
# vim /var/lib/docker/volumes/loraserver-docker_postgresqldata/_d
ata/pg_hba.conf

参考下 loraserver-docker 的配置：

# "local" is for Unix domain socket connections only
local   all             all                                     trust
# IPv4 local connections:
host    all             all             127.0.0.1/32            trust
# IPv6 local connections:
host    all             all             ::1/128                 trust
# Allow replication connections from localhost, by a user with the
# replication privilege.
#local   replication     postgres                                trust
#host    replication     postgres        127.0.0.1/32            trust
#host    replication     postgres        ::1/128                 trust

host all all all trust

# vim /var/lib/pgsql/11/data/pg_hba.conf                         
# systemctl restart postgresql-11                                
# psql -h localhost -U loraserver_ns -W loraserver_ns
Password for user loraserver_ns: 
psql (9.2.24, server 11.2)
WARNING: psql version 9.2, server version 11.0.
         Some psql features might not work.
Type "help" for help.

loraserver_ns=>

2.2 配置文件修改

生成默认配置文件，我比较喜欢放在当前工程目录。然后修改之。

# ./build/loraserver configfile > loraserver.toml
# vim loraserver.toml

改两处地方，我的 postgres 是对照官方的初始配置来的：

[postgresql]
dsn="postgres://loraserver_ns:dbpassword@localhost/loraserver_ns?sslmode=disable"

  [network_server.band]
  name="CN_470_510"

2.3 运行

如果提示这个，说明 MQTT broker 还没起来。参照 1.2 的方式，处理一下。

# ./build/loraserver 
INFO[0000] starting LoRa Server                          band=CN_470_510 docs="https:/www.loraserver.io/" net_id=000000 version=3.0.0-test.2-2-g124ff9b
INFO[0000] storage: setting up storage module           
INFO[0000] storage: setting up Redis connection pool    
INFO[0000] storage: connecting to PostgreSQL            
INFO[0000] storage: applying PostgreSQL data migrations 
INFO[0001] storage: PostgreSQL data migrations applied   count=21
INFO[0001] gateway/mqtt: connecting to mqtt broker       server="tcp://localhost:1883"

顺利的话，是这样：

# ./build/loraserver
INFO[0000] starting LoRa Server                          band=CN_470_510 docs="https:/www.loraserver.io/" net_id=000000 version=3.0.0-test.2-2-g124ff9b
INFO[0000] storage: setting up storage module           
INFO[0000] storage: setting up Redis connection pool    
INFO[0000] storage: connecting to PostgreSQL            
INFO[0000] storage: applying PostgreSQL data migrations 
INFO[0000] storage: PostgreSQL data migrations applied   count=0
INFO[0000] gateway/mqtt: connecting to mqtt broker       server="tcp://localhost:1883"
INFO[0000] no geolocation-server configured             
INFO[0000] configuring join-server client                ca_cert= server="http://localhost:8003" tls_cert= tls_key=
INFO[0000] backend/gateway: connected to mqtt server    
INFO[0000] gateway/mqtt: subscribing to gateway event topic  qos=0 topic=gateway/+/event/+
INFO[0000] service-profile and device-profile redis cache flushed 
INFO[0000] migrating gateway stats                      
INFO[0000] gateway stats migrated                       
INFO[0000] starting api server                           bind="0.0.0.0:8000" ca-cert= tls-cert= tls-key=
INFO[0000] starting downlink device-queue scheduler     
INFO[0000] starting multicast scheduler

3 lora-app-server

3.1 启动 Redis

可以参考笔记Redis 学习笔记 2.2.1 Redis配置成系统服务（CentOS7）

3.2 配置文件修改

生成默认配置文件，然后修改之。

# ./build/lora-app-server configfile > lora-app-server.toml
# vim lora-app-server.toml

改两处地方，第一处是 postgres，是对照官方的初始配置来的：

[postgresql]
dsn="postgres://loraserver_as:dbpassword@localhost/loraserver_as?sslmode=disable"

第二处是 jwt_secret，使用 openssl rand -base64 32 命令来生成一个随机数：

# openssl rand -base64 32
Jlc1V0SmAWcwkyNOUnJQtHeQILieIGkc47AQ+U2yWLY=
# vim lora-app-server.toml

  # JWT secret used for api authentication / authorization
  # You could generate this by executing 'openssl rand -base64 32' for example
  jwt_secret="Jlc1V0SmAWcwkyNOUnJQtHeQILieIGkc47AQ+U2yWLY="

3.3 运行

# ./build/lora-app-server 
INFO[0000] starting LoRa App Server                      docs="https://www.loraserver.io/" version=3.0.0-test.4-4-g4017505
INFO[0000] storage: setting up storage package          
INFO[0000] storage: setting up Redis pool               
INFO[0000] storage: connecting to PostgreSQL database   
INFO[0000] storage: applying PostgreSQL data migrations 
INFO[0000] storage: PostgreSQL data migrations applied   count=0
INFO[0000] integration/mqtt: TLS config is empty        
INFO[0000] integration/mqtt: connecting to mqtt broker   server="tcp://localhost:1883"
INFO[0000] api/as: starting application-server api       bind="0.0.0.0:8001" ca_cert= tls_cert= tls_key=
INFO[0000] integration/mqtt: connected to mqtt broker   
INFO[0000] integration/mqtt: subscribing to tx topic     qos=0 topic=application/+/device/+/tx
INFO[0000] api/external: starting api server             bind="0.0.0.0:8080" tls-cert= tls-key=
INFO[0000] api/external: registering rest api handler and documentation endpoint  path=/api
INFO[0000] api/js: starting join-server api              bind="0.0.0.0:8003" ca_cert= tls_cert= tls_key=

使用浏览器访问 :8080 端口，即可看到 AS 的 UI 界面。

3.4 AS 中关联 NS

由于最新的 backend 规范中，AS 可以关联多个 NS，因此在 AS 界面中需要先配置NS，这里填入本机NS即可。

4 小结

至此，三个组件都已配置启动。

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