lua-influxdb-relay

A Lua resty service to replicate InfluxDB data for high availability

Table of Contents

• Name
• Status
• Synopsis
• Installation
• Authors
• Copyright and License

Status

This library is still under early development and experimental.

Synopsis

    # --------- copy relay configuration file -----------
    cp -av /path/to/lua-influxdb-relay/lib/relay/lua-influxdb-relay.ini.demo /tmp/lua-influxdb-relay.ini

    # --------- relay config begin --------------
    	lua_code_cache on;
    	lua_package_path "/path/to/openresty/lualib/?.lua;/path/to/lua-influxdb-relay/lib/?.lua;;";
    	lua_package_cpath "/path/to/openresty/lualib/?.so;;";
    	lua_shared_dict relay 1m;
    	init_by_lua_file '/path/to/lua-influxdb-relay/lib/relay/init.lua';
    # --------- relay config end ----------------

    upstream backend_query {
      server 127.0.0.1:8086;
      server 127.0.0.1:8087;
    }
    
    server {
    
      log_subrequest on;
    
      location = /write {
        set $backend_uri_args '';
        rewrite_by_lua_file '/path/to/lua-influxdb-relay/lib/relay/rewrite.lua';
      }
    
      location = /query {
        proxy_pass http://backend_query;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header Host $http_host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header Connection "";
        proxy_http_version 1.1;
        
        rewrite_by_lua_file '/path/to/lua-influxdb-relay/lib/relay/rewrite_query.lua';
      }
    
      location = /relay1 {
        internal;
        
        proxy_pass http://127.0.0.1:8086;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header Host $http_host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header Connection "";
        proxy_http_version 1.1;
        
        rewrite_by_lua_file '/path/to/lua-influxdb-relay/lib/relay/rewrite_relay.lua';
      }
    
      location = /relay2 {
        internal;
      
        proxy_pass http://127.0.0.1:8087;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header Host $http_host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header Connection "";
        proxy_http_version 1.1;
        
        rewrite_by_lua_file '/path/to/lua-influxdb-relay/lib/relay/rewrite_relay.lua';
      }
    
    }

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Installation

lua-influxdb-relay use lua-resty-ini to parse the ini configuration. And you should install it with opm just like that: opm install doujiang24/lua-resty-ini

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Authors

kwanhur [email protected], VIPS Inc.

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Copyright and License

This module is licensed under the Apache License Version 2.0 .

Copyright (C) 2018, by kwanhur [email protected], VIPS Inc.

All rights reserved.

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

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