Temporarily Override DNS in Linux for Jenkins AutomationAdding custom dns entries for name resolution in the local networkAutomate SSL purchase and install processChange Linux network setupHow can I set up my Linux (CentOS) box to respond to *.centos?configure /etc/hosts file so ALL applications always use local network when it makes sense to do so?Blue-green deployment for Jenkins itselfCannot bind to a specific IPv4 address when making outbound TCP connections, to hostnames that resolve to both IPv4 and IPv6 addressesHow to get list of all the hostname / DNS of the Linux boxFreeIPA : Installer not resolving domain name from hosts fileQuery two different DNS nameservers - one for LAN only, one for everything else
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Temporarily Override DNS in Linux for Jenkins Automation
Adding custom dns entries for name resolution in the local networkAutomate SSL purchase and install processChange Linux network setupHow can I set up my Linux (CentOS) box to respond to *.centos?configure /etc/hosts file so ALL applications always use local network when it makes sense to do so?Blue-green deployment for Jenkins itselfCannot bind to a specific IPv4 address when making outbound TCP connections, to hostnames that resolve to both IPv4 and IPv6 addressesHow to get list of all the hostname / DNS of the Linux boxFreeIPA : Installer not resolving domain name from hosts fileQuery two different DNS nameservers - one for LAN only, one for everything else
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I'm not sure if this necessarily is a jenkins-related question, a Linux-type solution, or just not really possible.
I am trying to automate testing for an application in Jenkins. The application runs in Debian and communicates with another Debian machine in the network, say endpoint.server.com. This is a hard-coded hostname in the application. In actuality, there is not just one endpoint.server.com, but multiple. And typically, the DNS will round-robin through endpoint1.server.com, endpoint2.server.com, endpoint3.server.com, etc. whenever the application runs and queries for the endpoint.server.com resolution. For my Jenkins automation to work, I am looking for a way to override the DNS and specify the hostname for each job/build, for example by running some system command on the Jenkins box or specifying some parameter value.
The typical way I achieve this is manually set the IP for endpoint.server.com in the Jenkins machine's /etc/hosts file to point to, say, endpoint2.server.com's IP address. But if I do this, it would mess up any other jobs I am hoping to run against other endpoints. Is there any way to temporarily fudge host name resolution such that it could be set per session?
linux jenkins
asked May 9 at 23:41
wllslnwllsln
11
add a comment |
I'm not sure if this necessarily is a jenkins-related question, a Linux-type solution, or just not really possible.
I am trying to automate testing for an application in Jenkins. The application runs in Debian and communicates with another Debian machine in the network, say endpoint.server.com. This is a hard-coded hostname in the application. In actuality, there is not just one endpoint.server.com, but multiple. And typically, the DNS will round-robin through endpoint1.server.com, endpoint2.server.com, endpoint3.server.com, etc. whenever the application runs and queries for the endpoint.server.com resolution. For my Jenkins automation to work, I am looking for a way to override the DNS and specify the hostname for each job/build, for example by running some system command on the Jenkins box or specifying some parameter value.
The typical way I achieve this is manually set the IP for endpoint.server.com in the Jenkins machine's /etc/hosts file to point to, say, endpoint2.server.com's IP address. But if I do this, it would mess up any other jobs I am hoping to run against other endpoints. Is there any way to temporarily fudge host name resolution such that it could be set per session?
linux jenkins
asked May 9 at 23:41
wllslnwllsln
11
1
"endpoint.server.com is a hard-coded hostname in the application." - that is of course the root of the problem. You want that to be configurable for development and testing
– HBruijn
May 10 at 12:34
add a comment |
I'm not sure if this necessarily is a jenkins-related question, a Linux-type solution, or just not really possible.
I am trying to automate testing for an application in Jenkins. The application runs in Debian and communicates with another Debian machine in the network, say endpoint.server.com. This is a hard-coded hostname in the application. In actuality, there is not just one endpoint.server.com, but multiple. And typically, the DNS will round-robin through endpoint1.server.com, endpoint2.server.com, endpoint3.server.com, etc. whenever the application runs and queries for the endpoint.server.com resolution. For my Jenkins automation to work, I am looking for a way to override the DNS and specify the hostname for each job/build, for example by running some system command on the Jenkins box or specifying some parameter value.
The typical way I achieve this is manually set the IP for endpoint.server.com in the Jenkins machine's /etc/hosts file to point to, say, endpoint2.server.com's IP address. But if I do this, it would mess up any other jobs I am hoping to run against other endpoints. Is there any way to temporarily fudge host name resolution such that it could be set per session?
linux jenkins
asked May 9 at 23:41
wllslnwllsln
11
I'm not sure if this necessarily is a jenkins-related question, a Linux-type solution, or just not really possible.
I am trying to automate testing for an application in Jenkins. The application runs in Debian and communicates with another Debian machine in the network, say endpoint.server.com. This is a hard-coded hostname in the application. In actuality, there is not just one endpoint.server.com, but multiple. And typically, the DNS will round-robin through endpoint1.server.com, endpoint2.server.com, endpoint3.server.com, etc. whenever the application runs and queries for the endpoint.server.com resolution. For my Jenkins automation to work, I am looking for a way to override the DNS and specify the hostname for each job/build, for example by running some system command on the Jenkins box or specifying some parameter value.
The typical way I achieve this is manually set the IP for endpoint.server.com in the Jenkins machine's /etc/hosts file to point to, say, endpoint2.server.com's IP address. But if I do this, it would mess up any other jobs I am hoping to run against other endpoints. Is there any way to temporarily fudge host name resolution such that it could be set per session?
linux jenkins
linux jenkins
asked May 9 at 23:41
wllslnwllsln
11
asked May 9 at 23:41
wllslnwllsln
11
asked May 9 at 23:41
wllslnwllsln
11
asked May 9 at 23:41
wllslnwllsln
11
asked May 9 at 23:41
wllslnwllsln
11
11
1
"endpoint.server.com is a hard-coded hostname in the application." - that is of course the root of the problem. You want that to be configurable for development and testing
– HBruijn
May 10 at 12:34
add a comment |
1
"endpoint.server.com is a hard-coded hostname in the application." - that is of course the root of the problem. You want that to be configurable for development and testing
– HBruijn
May 10 at 12:34
1
1
"endpoint.server.com is a hard-coded hostname in the application." - that is of course the root of the problem. You want that to be configurable for development and testing
– HBruijn
May 10 at 12:34
"endpoint.server.com is a hard-coded hostname in the application." - that is of course the root of the problem. You want that to be configurable for development and testing
– HBruijn
May 10 at 12:34
add a comment |
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1
"endpoint.server.com is a hard-coded hostname in the application." - that is of course the root of the problem. You want that to be configurable for development and testing
– HBruijn
May 10 at 12:34