Hi Odd, Thanks. I've looked at constructr and see that it would work fine and is a general solution not tied to AWS/ECS. However, it does add more moving parts to a deployment and has the potential to get out of sync with the source of truth of the cluster definition -- ECS itself. I will, however, consider it, as there is some beauty in a general solution. -- Eric
On Tuesday, February 2, 2016 at 1:15:17 AM UTC-8, Odd Möller wrote: > > Hi Eric, have you looked at https://github.com/hseeberger/constructr? > > Greetings > Odd > > On Tue, Feb 2, 2016 at 9:26 AM, Roland Kuhn <[email protected] > <javascript:>> wrote: > >> Yes, this sounds like a good strategy to me. >> >> Regards, >> >> Roland >> >> 1 feb 2016 kl. 23:56 skrev Eric Swenson <[email protected] <javascript:> >> >: >> >> Probably a better roll-my-own solution would involve querying AWS/ECS >> dynamically to discover the IP addresses of the containers running in the >> cluster, excluding the IP address of node making the query, and setting the >> seed nodes to the remaining nodes. This way, the likely of getting the list >> of nodes out-of-sync with reality is minimal. — Eric >> >> On Feb 1, 2016, at 2:43 PM, Eric Swenson <[email protected] <javascript:>> >> wrote: >> >> Are there any good solutions for deploying akka clustered applications in >> docker containers running under AWS/ECS? While there are proposed >> solutions for AWS/EC2 with autoscaling, none of them targets AWS/ECS. In a >> nutshell, the issue is this: >> >> If your cluster-nodes are implemented as docker containers, and >> formalized as ECS tasks that are members of an ECS service (in an ECS >> cluster), then when they are started and stopped (by ECS) in response to >> load, their IP addresses are impossible to predict. It is not possible to >> configure a fixed set of seed nodes at known IP addresses unless these seed >> nodes are managed independently of ECS automatic management. And, of >> course, having fixed, known seed nodes becomes problematic if/when these >> nodes fail. >> >> I could roll my own solution using a key/value store like redis, where >> whenever a node comes up, it first publishes its IP addresses (and port, if >> not common) to the key/value store, and then queries that store to >> configure its seed nodes. Care would have to be taken to clean up old >> entries when nodes fail, of course. But it seems like I shouldn't be the >> first person to run into akka-cluster issues on AWS/ECS and that other >> solutions might be out there. Unfortunately, I've found none. >> >> Any ideas? >> >> -- Eric >> >> >> -- >> >>>>>>>>>> Read the docs: http://akka.io/docs/ >> >>>>>>>>>> Check the FAQ: >> http://doc.akka.io/docs/akka/current/additional/faq.html >> >>>>>>>>>> Search the archives: https://groups.google.com/group/akka-user >> --- >> You received this message because you are subscribed to a topic in the >> Google Groups "Akka User List" group. >> To unsubscribe from this topic, visit >> https://groups.google.com/d/topic/akka-user/MnxSZma4QJI/unsubscribe. >> To unsubscribe from this group and all its topics, send an email to >> [email protected] <javascript:>. >> To post to this group, send email to [email protected] >> <javascript:>. >> Visit this group at https://groups.google.com/group/akka-user. >> For more options, visit https://groups.google.com/d/optout. >> >> >> >> -- >> >>>>>>>>>> Read the docs: http://akka.io/docs/ >> >>>>>>>>>> Check the FAQ: >> http://doc.akka.io/docs/akka/current/additional/faq.html >> >>>>>>>>>> Search the archives: https://groups.google.com/group/akka-user >> --- >> You received this message because you are subscribed to the Google Groups >> "Akka User List" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected] <javascript:>. >> To post to this group, send email to [email protected] >> <javascript:>. >> Visit this group at https://groups.google.com/group/akka-user. >> For more options, visit https://groups.google.com/d/optout. >> >> >> >> >> *Dr. Roland Kuhn* >> *Akka Tech Lead* >> Typesafe <http://typesafe.com/> – Reactive apps on the JVM. >> twitter: @rolandkuhn >> <http://twitter.com/#!/rolandkuhn> >> >> -- >> >>>>>>>>>> Read the docs: http://akka.io/docs/ >> >>>>>>>>>> Check the FAQ: >> http://doc.akka.io/docs/akka/current/additional/faq.html >> >>>>>>>>>> Search the archives: https://groups.google.com/group/akka-user >> --- >> You received this message because you are subscribed to the Google Groups >> "Akka User List" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected] <javascript:>. >> To post to this group, send email to [email protected] >> <javascript:>. >> Visit this group at https://groups.google.com/group/akka-user. >> For more options, visit https://groups.google.com/d/optout. >> > > -- >>>>>>>>>> Read the docs: http://akka.io/docs/ >>>>>>>>>> Check the FAQ: >>>>>>>>>> http://doc.akka.io/docs/akka/current/additional/faq.html >>>>>>>>>> Search the archives: https://groups.google.com/group/akka-user --- You received this message because you are subscribed to the Google Groups "Akka User List" group. 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