Kubernetes cluster in public and private topology












0















I am trying to setup a kubernetes cluster in aws using Kops. But i have requirement like deploy the master nodes in public subnet and some workers in public and some workers in private subnet.



I need the network something like below:
enter image description here



So, is it possible to create this network using kops?










share|improve this question























  • what scenario are you trying to implement?

    – Ohmen
    Nov 22 '18 at 10:52











  • @Ohmen I have frontend applications that should be available over public and applications that should run as jobs in private subnets.

    – Naveen Kerati
    Nov 22 '18 at 11:13
















0















I am trying to setup a kubernetes cluster in aws using Kops. But i have requirement like deploy the master nodes in public subnet and some workers in public and some workers in private subnet.



I need the network something like below:
enter image description here



So, is it possible to create this network using kops?










share|improve this question























  • what scenario are you trying to implement?

    – Ohmen
    Nov 22 '18 at 10:52











  • @Ohmen I have frontend applications that should be available over public and applications that should run as jobs in private subnets.

    – Naveen Kerati
    Nov 22 '18 at 11:13














0












0








0








I am trying to setup a kubernetes cluster in aws using Kops. But i have requirement like deploy the master nodes in public subnet and some workers in public and some workers in private subnet.



I need the network something like below:
enter image description here



So, is it possible to create this network using kops?










share|improve this question














I am trying to setup a kubernetes cluster in aws using Kops. But i have requirement like deploy the master nodes in public subnet and some workers in public and some workers in private subnet.



I need the network something like below:
enter image description here



So, is it possible to create this network using kops?







amazon-web-services kubernetes kops






share|improve this question













share|improve this question











share|improve this question




share|improve this question










asked Nov 21 '18 at 6:55









Naveen KeratiNaveen Kerati

391317




391317













  • what scenario are you trying to implement?

    – Ohmen
    Nov 22 '18 at 10:52











  • @Ohmen I have frontend applications that should be available over public and applications that should run as jobs in private subnets.

    – Naveen Kerati
    Nov 22 '18 at 11:13



















  • what scenario are you trying to implement?

    – Ohmen
    Nov 22 '18 at 10:52











  • @Ohmen I have frontend applications that should be available over public and applications that should run as jobs in private subnets.

    – Naveen Kerati
    Nov 22 '18 at 11:13

















what scenario are you trying to implement?

– Ohmen
Nov 22 '18 at 10:52





what scenario are you trying to implement?

– Ohmen
Nov 22 '18 at 10:52













@Ohmen I have frontend applications that should be available over public and applications that should run as jobs in private subnets.

– Naveen Kerati
Nov 22 '18 at 11:13





@Ohmen I have frontend applications that should be available over public and applications that should run as jobs in private subnets.

– Naveen Kerati
Nov 22 '18 at 11:13












1 Answer
1






active

oldest

votes


















0














Kubernetes nodes should never be directly connected to the internet.



I assume you want to expose services via NodePort which is in general a bad idea. Because NodePort service are exposed on ALL nodes not just the ones where the pods are running.



You should place all nodes and masters in private Subnets and manage the external Access via elastic load balancers and ingress. This way you can explicitly expose frontend services to the internet.



The relevant kops-spec.yaml snippet would be:



topology:
dns:
type: Public
masters: private
nodes: private





share|improve this answer
























  • okay thanks, Ohmen.

    – Naveen Kerati
    Nov 23 '18 at 6:28











  • you are welcome. Please accept the anwer if it solved your problem

    – Ohmen
    Nov 23 '18 at 12:51











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1 Answer
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active

oldest

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1 Answer
1






active

oldest

votes









active

oldest

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active

oldest

votes









0














Kubernetes nodes should never be directly connected to the internet.



I assume you want to expose services via NodePort which is in general a bad idea. Because NodePort service are exposed on ALL nodes not just the ones where the pods are running.



You should place all nodes and masters in private Subnets and manage the external Access via elastic load balancers and ingress. This way you can explicitly expose frontend services to the internet.



The relevant kops-spec.yaml snippet would be:



topology:
dns:
type: Public
masters: private
nodes: private





share|improve this answer
























  • okay thanks, Ohmen.

    – Naveen Kerati
    Nov 23 '18 at 6:28











  • you are welcome. Please accept the anwer if it solved your problem

    – Ohmen
    Nov 23 '18 at 12:51
















0














Kubernetes nodes should never be directly connected to the internet.



I assume you want to expose services via NodePort which is in general a bad idea. Because NodePort service are exposed on ALL nodes not just the ones where the pods are running.



You should place all nodes and masters in private Subnets and manage the external Access via elastic load balancers and ingress. This way you can explicitly expose frontend services to the internet.



The relevant kops-spec.yaml snippet would be:



topology:
dns:
type: Public
masters: private
nodes: private





share|improve this answer
























  • okay thanks, Ohmen.

    – Naveen Kerati
    Nov 23 '18 at 6:28











  • you are welcome. Please accept the anwer if it solved your problem

    – Ohmen
    Nov 23 '18 at 12:51














0












0








0







Kubernetes nodes should never be directly connected to the internet.



I assume you want to expose services via NodePort which is in general a bad idea. Because NodePort service are exposed on ALL nodes not just the ones where the pods are running.



You should place all nodes and masters in private Subnets and manage the external Access via elastic load balancers and ingress. This way you can explicitly expose frontend services to the internet.



The relevant kops-spec.yaml snippet would be:



topology:
dns:
type: Public
masters: private
nodes: private





share|improve this answer













Kubernetes nodes should never be directly connected to the internet.



I assume you want to expose services via NodePort which is in general a bad idea. Because NodePort service are exposed on ALL nodes not just the ones where the pods are running.



You should place all nodes and masters in private Subnets and manage the external Access via elastic load balancers and ingress. This way you can explicitly expose frontend services to the internet.



The relevant kops-spec.yaml snippet would be:



topology:
dns:
type: Public
masters: private
nodes: private






share|improve this answer












share|improve this answer



share|improve this answer










answered Nov 22 '18 at 12:13









OhmenOhmen

2,34321725




2,34321725













  • okay thanks, Ohmen.

    – Naveen Kerati
    Nov 23 '18 at 6:28











  • you are welcome. Please accept the anwer if it solved your problem

    – Ohmen
    Nov 23 '18 at 12:51



















  • okay thanks, Ohmen.

    – Naveen Kerati
    Nov 23 '18 at 6:28











  • you are welcome. Please accept the anwer if it solved your problem

    – Ohmen
    Nov 23 '18 at 12:51

















okay thanks, Ohmen.

– Naveen Kerati
Nov 23 '18 at 6:28





okay thanks, Ohmen.

– Naveen Kerati
Nov 23 '18 at 6:28













you are welcome. Please accept the anwer if it solved your problem

– Ohmen
Nov 23 '18 at 12:51





you are welcome. Please accept the anwer if it solved your problem

– Ohmen
Nov 23 '18 at 12:51




















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