Docker service discovery using DNS rather than service registry











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I'm running an application with a multitude of back end services each running within a container. After sifting through various articles, I've reached a state of dilemma as to why do we even employ service registry for service discovery even though our Docker is kind enough to provide us a built in service discovery system?






docker docker-compose containers microservices service-discovery







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    I'm running an application with a multitude of back end services each running within a container. After sifting through various articles, I've reached a state of dilemma as to why do we even employ service registry for service discovery even though our Docker is kind enough to provide us a built in service discovery system?






    docker docker-compose containers microservices service-discovery







    share|improve this question
























      up vote
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      down vote

      favorite









      up vote
      0
      down vote

      favorite











      I'm running an application with a multitude of back end services each running within a container. After sifting through various articles, I've reached a state of dilemma as to why do we even employ service registry for service discovery even though our Docker is kind enough to provide us a built in service discovery system?






      docker docker-compose containers microservices service-discovery







      share|improve this question













      I'm running an application with a multitude of back end services each running within a container. After sifting through various articles, I've reached a state of dilemma as to why do we even employ service registry for service discovery even though our Docker is kind enough to provide us a built in service discovery system?






      docker docker-compose containers microservices service-discovery




      docker docker-compose containers microservices service-discovery






      share|improve this question













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      asked 2 days ago









      Souvik Dey

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      13225
























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          Well, I guess it would depend on the scale of your deployment.



          Docker is alone sufficient for deployments in a single VM (and docker network) I suppose but what it you want to scale across VMs, Physical Hosts and Datacenters?



          Service Discovery would then make more sense and also they give you a totally different level of control compared to relying on the basic implementation that docker provides itself.



          So, depending on your deployment it will either be an overkill or a life saver.






          share|improve this answer





















          • Hi Pramodh, I'll be currently using Kubernetes for cluster management and I think Kubernetes has inbuilt DNS server for service discovery. In that regard, does it become necessary to deploy a service registry, as because Kubernetes would already workout all the nitty grity for me. Thanks!
            – Souvik Dey
            yesterday











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          Well, I guess it would depend on the scale of your deployment.



          Docker is alone sufficient for deployments in a single VM (and docker network) I suppose but what it you want to scale across VMs, Physical Hosts and Datacenters?



          Service Discovery would then make more sense and also they give you a totally different level of control compared to relying on the basic implementation that docker provides itself.



          So, depending on your deployment it will either be an overkill or a life saver.






          share|improve this answer





















          • Hi Pramodh, I'll be currently using Kubernetes for cluster management and I think Kubernetes has inbuilt DNS server for service discovery. In that regard, does it become necessary to deploy a service registry, as because Kubernetes would already workout all the nitty grity for me. Thanks!
            – Souvik Dey
            yesterday















          up vote
          1
          down vote













          Well, I guess it would depend on the scale of your deployment.



          Docker is alone sufficient for deployments in a single VM (and docker network) I suppose but what it you want to scale across VMs, Physical Hosts and Datacenters?



          Service Discovery would then make more sense and also they give you a totally different level of control compared to relying on the basic implementation that docker provides itself.



          So, depending on your deployment it will either be an overkill or a life saver.






          share|improve this answer





















          • Hi Pramodh, I'll be currently using Kubernetes for cluster management and I think Kubernetes has inbuilt DNS server for service discovery. In that regard, does it become necessary to deploy a service registry, as because Kubernetes would already workout all the nitty grity for me. Thanks!
            – Souvik Dey
            yesterday













          up vote
          1
          down vote










          up vote
          1
          down vote









          Well, I guess it would depend on the scale of your deployment.



          Docker is alone sufficient for deployments in a single VM (and docker network) I suppose but what it you want to scale across VMs, Physical Hosts and Datacenters?



          Service Discovery would then make more sense and also they give you a totally different level of control compared to relying on the basic implementation that docker provides itself.



          So, depending on your deployment it will either be an overkill or a life saver.






          share|improve this answer












          Well, I guess it would depend on the scale of your deployment.



          Docker is alone sufficient for deployments in a single VM (and docker network) I suppose but what it you want to scale across VMs, Physical Hosts and Datacenters?



          Service Discovery would then make more sense and also they give you a totally different level of control compared to relying on the basic implementation that docker provides itself.



          So, depending on your deployment it will either be an overkill or a life saver.







          share|improve this answer












          share|improve this answer



          share|improve this answer










          answered yesterday









          Pramodh Valavala

          38617




          38617












          • Hi Pramodh, I'll be currently using Kubernetes for cluster management and I think Kubernetes has inbuilt DNS server for service discovery. In that regard, does it become necessary to deploy a service registry, as because Kubernetes would already workout all the nitty grity for me. Thanks!
            – Souvik Dey
            yesterday


















          • Hi Pramodh, I'll be currently using Kubernetes for cluster management and I think Kubernetes has inbuilt DNS server for service discovery. In that regard, does it become necessary to deploy a service registry, as because Kubernetes would already workout all the nitty grity for me. Thanks!
            – Souvik Dey
            yesterday
















          Hi Pramodh, I'll be currently using Kubernetes for cluster management and I think Kubernetes has inbuilt DNS server for service discovery. In that regard, does it become necessary to deploy a service registry, as because Kubernetes would already workout all the nitty grity for me. Thanks!
          – Souvik Dey
          yesterday




          Hi Pramodh, I'll be currently using Kubernetes for cluster management and I think Kubernetes has inbuilt DNS server for service discovery. In that regard, does it become necessary to deploy a service registry, as because Kubernetes would already workout all the nitty grity for me. Thanks!
          – Souvik Dey
          yesterday


















           

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