Re: New feature request for balancer-manager: command line usage
On Oct 30, 2012, at 3:12 PM, John M jfm.apa...@gmail.com wrote: Hello, I have a new feature request for the balancer-manager: the ability to enable or disable servers in the balancer using the command line, instead of using the only way that exists that I know of: the balancer-manager webpage. The use case for this would be the creation of a shell script that could call such a command-prompt command, as part of an automated hot-deploy or continuous deployment architecture. I don't know anything about the httpd source and don't know if this would have to be part of a new executable if not an addition to httpd or apacectlwhat does everyone / anyone think? This is my first time emailing this group: for this request to be considered, do I need to create an item in Bugzilla? I could also think about trying to implement this sort of thing myself and submitting it as a patch, but I could very much use guidance towards what to create / modify and where it would go in the codebase.. Right now, the balancer-manager doesn't require the use of the web-interface. You can talk straight http to it via curl/httpclient/whatevs. So creating a php/perl/python/ruby script that interfaces with the manager should be no prob at all.
Re: New feature request for balancer-manager: command line usage
It's correct that somebody could use an http client to do the load balancing, it's just awkward: there isn't a published API for it. The script / client might need to have some intelligence built into it, to try to figure out what the current states of the load balanced servers are, and to handle any errors that might occur. Also, with Tomcat, one can deploy outside of the tomcat manager web application with Maven, with Ant, or with the Tomcat Client Deployer, which is why I was hoping something could eventually be built into Httpd as well (and, does nginx already have this capability?). But for now, you're right, I can do what I need to do with Curl or some other client. Thanks, John M On Thu, Nov 1, 2012 at 7:29 AM, Jim Jagielski j...@jagunet.com wrote: On Oct 30, 2012, at 3:12 PM, John M jfm.apa...@gmail.com wrote: Hello, I have a new feature request for the balancer-manager: the ability to enable or disable servers in the balancer using the command line, instead of using the only way that exists that I know of: the balancer-manager webpage. The use case for this would be the creation of a shell script that could call such a command-prompt command, as part of an automated hot-deploy or continuous deployment architecture. I don't know anything about the httpd source and don't know if this would have to be part of a new executable if not an addition to httpd or apacectlwhat does everyone / anyone think? This is my first time emailing this group: for this request to be considered, do I need to create an item in Bugzilla? I could also think about trying to implement this sort of thing myself and submitting it as a patch, but I could very much use guidance towards what to create / modify and where it would go in the codebase.. Right now, the balancer-manager doesn't require the use of the web-interface. You can talk straight http to it via curl/httpclient/whatevs. So creating a php/perl/python/ruby script that interfaces with the manager should be no prob at all.
Re: New feature request for balancer-manager: command line usage
You're right that the API really needs to be documented. My hope is that once the make balancer-manager changes sticky backports are approved and in 2.4.x, I'll write up in more detail how the b-m works and its API. afaik, nginx lacks any sort of dynamic reverse-proxy reconfig capability. It's one of the killer features of Apache 2.4 esp for cloud environs. On Nov 1, 2012, at 9:07 AM, John M jfm.apa...@gmail.com wrote: It's correct that somebody could use an http client to do the load balancing, it's just awkward: there isn't a published API for it. The script / client might need to have some intelligence built into it, to try to figure out what the current states of the load balanced servers are, and to handle any errors that might occur. Also, with Tomcat, one can deploy outside of the tomcat manager web application with Maven, with Ant, or with the Tomcat Client Deployer, which is why I was hoping something could eventually be built into Httpd as well (and, does nginx already have this capability?). But for now, you're right, I can do what I need to do with Curl or some other client. Thanks, John M On Thu, Nov 1, 2012 at 7:29 AM, Jim Jagielski j...@jagunet.com wrote: On Oct 30, 2012, at 3:12 PM, John M jfm.apa...@gmail.com wrote: Hello, I have a new feature request for the balancer-manager: the ability to enable or disable servers in the balancer using the command line, instead of using the only way that exists that I know of: the balancer-manager webpage. The use case for this would be the creation of a shell script that could call such a command-prompt command, as part of an automated hot-deploy or continuous deployment architecture. I don't know anything about the httpd source and don't know if this would have to be part of a new executable if not an addition to httpd or apacectlwhat does everyone / anyone think? This is my first time emailing this group: for this request to be considered, do I need to create an item in Bugzilla? I could also think about trying to implement this sort of thing myself and submitting it as a patch, but I could very much use guidance towards what to create / modify and where it would go in the codebase.. Right now, the balancer-manager doesn't require the use of the web-interface. You can talk straight http to it via curl/httpclient/whatevs. So creating a php/perl/python/ruby script that interfaces with the manager should be no prob at all.
Re: New feature request for balancer-manager: command line usage
On 30 Oct 2012, at 9:12 PM, John M jfm.apa...@gmail.com wrote: I have a new feature request for the balancer-manager: the ability to enable or disable servers in the balancer using the command line, instead of using the only way that exists that I know of: the balancer-manager webpage. The use case for this would be the creation of a shell script that could call such a command-prompt command, as part of an automated hot-deploy or continuous deployment architecture. Could you not use an HTTP client like curl within your shell script to do this, or are there circumstances that make this difficult? Regards, Graham -- smime.p7s Description: S/MIME cryptographic signature
New feature request for balancer-manager: command line usage
Hello, I have a new feature request for the balancer-manager: the ability to enable or disable servers in the balancer using the command line, instead of using the only way that exists that I know of: the balancer-manager webpage. The use case for this would be the creation of a shell script that could call such a command-prompt command, as part of an automated hot-deploy or continuous deployment architecture. I don't know anything about the httpd source and don't know if this would have to be part of a new executable if not an addition to httpd or apacectlwhat does everyone / anyone think? This is my first time emailing this group: for this request to be considered, do I need to create an item in Bugzilla? I could also think about trying to implement this sort of thing myself and submitting it as a patch, but I could very much use guidance towards what to create / modify and where it would go in the codebase.. Thanks, John M
