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Improvement
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Resolution: Fixed
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Blocker
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None
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jenkins: 1.597
ec2-plugin: 1.24
The EC2 plugin is currently throwing the following error while trying to launch a build slave:
Jan 19, 2015 5:55:48 PM hudson.plugins.ec2.EC2Cloud provision WARNING: Failed to count the # of live instances on EC2 com.amazonaws.AmazonClientException: Unable to execute HTTP request: eu-central-1.ec2.amazonaws.com: Name or service not known
Performing a resolve directly against the SOA nameservers results in no answer:
dig eu-central-1.ec2.amazonaws.com @r1.amazonaws.com ; <<>> DiG 9.9.2-P2 <<>> eu-central-1.ec2.amazonaws.com @r1.amazonaws.com ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 33907 ;; flags: qr rd; QUERY: 1, ANSWER: 0, AUTHORITY: 6, ADDITIONAL: 1 ;; WARNING: recursion requested but not available ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 4096 ;; QUESTION SECTION: ;eu-central-1.ec2.amazonaws.com. IN A ;; AUTHORITY SECTION: ec2.amazonaws.com. 907 IN NS ns-911.amazon.com. ec2.amazonaws.com. 907 IN NS ns-912.amazon.com. ec2.amazonaws.com. 907 IN NS ns-921.amazon.com. ec2.amazonaws.com. 907 IN NS ns-923.amazon.com. ec2.amazonaws.com. 907 IN NS ns-941.amazon.com. ec2.amazonaws.com. 907 IN NS ns-942.amazon.com. ;; Query time: 25 msec ;; SERVER: 205.251.192.27#53(205.251.192.27) ;; WHEN: Mon Jan 19 17:57:13 2015 ;; MSG SIZE rcvd: 192
The AWS API docs specify EC2 hostnames like the following:
... ec2.eu-central-1.amazonaws.com ...
So, the "ec2" and "eu-central-1" portions are flipped. I recommend that the API endpoints are updated to use the hostnames that are currently outlined in the API docs.
