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235's avatar
235
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Jun 20, 2018

Use iRules-LX to Blue/Green Deployment

Hello I've been learning IRules-LX，I hope to get http post username through iRules,Then used the username call to node.js(mysql npm) select mysql database.if the username select result is "green".loa...
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235's avatar
235
Icon for Nimbostratus rankNimbostratus
Jun 21, 2018

Hello everyone My Irules is below:

 

when HTTP_REQUEST { if { [HTTP::username] ne "" } { log local0. "User [HTTP::username] has been authorized to access virtual server [virtual name]" Client supplied a valid username, so initialize the iRulesLX extension

 

set RPC_HANDLE [ILX::init "iruleslx_mysql_plugin" "mysql_extension"] set username [HTTP::username] set rpc_response [ILX::call $RPC_HANDLE myql_nodejs $username $static::mysql_debug]

 

set rpc_response [ILX::call $RPC_HANDLE myql_nodejs $username]

 

Send an HTTP 200 response with the groups retrieved from the iRulesLX plugin

 

HTTP::respond 200 content "\nGroup(s) for '$username' are '$rpc_response'\n"

 

HTTP::respond 200 content "User Database$rpc_response "

 

log local0. "Looked up \$username=$username and matched group(s): $rpc_response" } else { HTTP::respond 401 WWW-Authenticate "Basic realm=\"Secured Area\"" } }

 

But My /var/log/ltm desplay erro log :Jun 21 15:22:12 v13 err tmm[28004]: 01220001:3: TCL error: /Common/iruleslx_mysql_plugin/mysql_irulelx - Could not find ILX extension mysql_extension in path iruleslx_mysql_plugin (line 4) invoked from within "ILX::init "iruleslx_mysql_plugin" "mysql_extension"" How to troubleshotting ?

 

Thanks

 

  • Niels_van_Sluis's avatar
    Niels_van_Sluis
    Icon for MVP rankMVP
    Jun 21, 2018

    First of all, I don't think you need the double qoutes. Just use:

    set RPC_HANDLE [ILX::init iruleslx_mysql_plugin mysql_extension]

    It seems you are not calling the right extension. What does the following command returns?

    tmsh list ilx plugin iruleslx_mysql_plugin
  • 235's avatar
    235
    Icon for Nimbostratus rankNimbostratus
    Jun 23, 2018

    Hi Niels van Sluis

     

    Thanks for your reply.My tmsh comamnd output is below:

     

    [root@v13:Active:Standalone] config tmsh list ilx plugin iruleslx_mysql_plugin ilx plugin iruleslx_mysql_plugin { extensions { mysql_extension { } } from-workspace iruleslx_mysql_workspace log-publisher local-db-publisher node-version 6.9.1 staged-directory /var/ilx/workspaces/Common/iruleslx_mysql_workspace }

     

  • Niels_van_Sluis's avatar
    Niels_van_Sluis
    Icon for MVP rankMVP
    Jun 24, 2018

    Not sure why it doesn't work in your case. I just setup something similar in my lab running 13.1.0.6 and it just works.

    root@(nielsvs-bigip)(cfg-sync Standalone)(Active)(/Common)(tmos) list ilx plugin 
iruleslx_mysql_plugin 
ilx plugin iruleslx_mysql_plugin {
    extensions {
        mysql_extension { }
    }
    from-workspace iruleslx_mysql_workspace
    log-publisher local-db-publisher
    node-version 6.9.1
    staged-directory /var/ilx/workspaces/Common/iruleslx_mysql_workspace
}
root@(nielsvs-bigip)(cfg-sync Standalone)(Active)(/Common)(tmos) quit
[root@nielsvs-bigip:Active:Standalone] config  ls -la /var/ilx/workspaces/Common/iruleslx_mysql_workspace/extensions/mysql_extension/
total 20
drwxrwxr-x. 3 root sdm 4096 2018-06-24 16:35 .
drwxrwxr-x. 3 root sdm 4096 2018-06-24 16:35 ..
-rw-rw-r--. 1 root sdm  951 2018-06-24 16:38 index.js
drwxrwxr-x. 3 root sdm 4096 2018-06-24 16:35 node_modules
-rw-rw-rw-. 1 root sdm  381 2018-01-16 17:45 package.json
[root@nielsvs-bigip:Active:Standalone] config

    Does 

    tmsh show ilx plugin iruleslx_mysql_plugin
    shows that the extension is running?

    [root@nielsvs-bigip:Active:Standalone] config  tmsh show ilx plugin iruleslx_mysql_plugin | grep -B 2 Status
  | Extension: mysql_extension
  -------------------------------
  | Status                running
--
     | Extension Process: mysql_extension
     ------------------------------------------
     | Status                running
--
     | Extension Process: mysql_extension
     ------------------------------------------
     | Status                running
[root@nielsvs-bigip:Active:Standalone] config
  • 235's avatar
    235
    Icon for Nimbostratus rankNimbostratus
    Jul 01, 2018

    @Niels van Sluis Thanks for you help : ）

     

    I've solved the problem. I rewrite my code then don't have display error log.