How to stop all external traffic and allow only inter pod network call within namespace using network policy?
I'm setting up a namespace in my kubernetes cluster to deny any outgoing network calls like http://company.com but to allow inter pod communication within my namespace like http://my-nginx where my-nginx is a kubernetes service pointing to my nginx pod.
How to achieve this using network policy. Below network policy helps in blocking all outgoing network calls
kind: NetworkPolicy
apiVersion: networking.k8s.io/v1
metadata:
name: deny-all-egress
namespace: sample
spec:
policyTypes:
- Egress
podSelector: {}
How to white list only the inter pod calls?
kubernetes
asked Jan 18 at 13:36
PradeepPradeep
516
add a comment |
I'm setting up a namespace in my kubernetes cluster to deny any outgoing network calls like http://company.com but to allow inter pod communication within my namespace like http://my-nginx where my-nginx is a kubernetes service pointing to my nginx pod.
How to achieve this using network policy. Below network policy helps in blocking all outgoing network calls
kind: NetworkPolicy
apiVersion: networking.k8s.io/v1
metadata:
name: deny-all-egress
namespace: sample
spec:
policyTypes:
- Egress
podSelector: {}
How to white list only the inter pod calls?
kubernetes
asked Jan 18 at 13:36
PradeepPradeep
516
Have you perused github.com/ahmetb/kubernetes-network-policy-recipes already?
– Michael Hausenblas
Jan 18 at 13:41
Thank you for pointing it out. This particular example works for me github.com/ahmetb/kubernetes-network-policy-recipes/blob/master/… but with the catch that if there is a host with port 53 then it will not stop the call, isn't it?
– Pradeep
Jan 18 at 17:33
add a comment |
I'm setting up a namespace in my kubernetes cluster to deny any outgoing network calls like http://company.com but to allow inter pod communication within my namespace like http://my-nginx where my-nginx is a kubernetes service pointing to my nginx pod.
How to achieve this using network policy. Below network policy helps in blocking all outgoing network calls
kind: NetworkPolicy
apiVersion: networking.k8s.io/v1
metadata:
name: deny-all-egress
namespace: sample
spec:
policyTypes:
- Egress
podSelector: {}
How to white list only the inter pod calls?
kubernetes
asked Jan 18 at 13:36
PradeepPradeep
516
I'm setting up a namespace in my kubernetes cluster to deny any outgoing network calls like http://company.com but to allow inter pod communication within my namespace like http://my-nginx where my-nginx is a kubernetes service pointing to my nginx pod.
How to achieve this using network policy. Below network policy helps in blocking all outgoing network calls
kind: NetworkPolicy
apiVersion: networking.k8s.io/v1
metadata:
name: deny-all-egress
namespace: sample
spec:
policyTypes:
- Egress
podSelector: {}
How to white list only the inter pod calls?
kubernetes
kubernetes
asked Jan 18 at 13:36
PradeepPradeep
516
asked Jan 18 at 13:36
PradeepPradeep
516
asked Jan 18 at 13:36
PradeepPradeep
516
asked Jan 18 at 13:36
PradeepPradeep
516
asked Jan 18 at 13:36
PradeepPradeep
516
516
Have you perused github.com/ahmetb/kubernetes-network-policy-recipes already?
– Michael Hausenblas
Jan 18 at 13:41
Thank you for pointing it out. This particular example works for me github.com/ahmetb/kubernetes-network-policy-recipes/blob/master/… but with the catch that if there is a host with port 53 then it will not stop the call, isn't it?
– Pradeep
Jan 18 at 17:33
add a comment |
Have you perused github.com/ahmetb/kubernetes-network-policy-recipes already?
– Michael Hausenblas
Jan 18 at 13:41
Thank you for pointing it out. This particular example works for me github.com/ahmetb/kubernetes-network-policy-recipes/blob/master/… but with the catch that if there is a host with port 53 then it will not stop the call, isn't it?
– Pradeep
Jan 18 at 17:33
Have you perused github.com/ahmetb/kubernetes-network-policy-recipes already?
– Michael Hausenblas
Jan 18 at 13:41
Have you perused github.com/ahmetb/kubernetes-network-policy-recipes already?
– Michael Hausenblas
Jan 18 at 13:41
Thank you for pointing it out. This particular example works for me github.com/ahmetb/kubernetes-network-policy-recipes/blob/master/… but with the catch that if there is a host with port 53 then it will not stop the call, isn't it?
– Pradeep
Jan 18 at 17:33
Thank you for pointing it out. This particular example works for me github.com/ahmetb/kubernetes-network-policy-recipes/blob/master/… but with the catch that if there is a host with port 53 then it will not stop the call, isn't it?
– Pradeep
Jan 18 at 17:33
add a comment |
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Have you perused github.com/ahmetb/kubernetes-network-policy-recipes already?
– Michael Hausenblas
Jan 18 at 13:41
Thank you for pointing it out. This particular example works for me github.com/ahmetb/kubernetes-network-policy-recipes/blob/master/… but with the catch that if there is a host with port 53 then it will not stop the call, isn't it?
– Pradeep
Jan 18 at 17:33