Kubernetes nifi application deployment with configuration management
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Kubernetes nifi application deployment with configuration management
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I have deployed my Ni-Fi application using Kubernetes on-prem setup. Now the image which i am using to spin up the docker container is from docker private registry, which i can see when i deployed using Daemon sets service because my requirement is to spin up only one Pod per node and i don't want to replicate my pod if that is killed/terminated.
having said that i want to listen this applications on some ports...so my questions are as below
1) How to open multiple ports for the application which are running on multiple nodes on single pod.
2) i have some configuration files which are in a shell script with environment variables defined within..how to inject this script on to my application which is already running.
kubernetes configuration-management
asked Jun 3 at 9:36
Ravikumar SubramanianRavikumar Subramanian
62
add a comment |
I have deployed my Ni-Fi application using Kubernetes on-prem setup. Now the image which i am using to spin up the docker container is from docker private registry, which i can see when i deployed using Daemon sets service because my requirement is to spin up only one Pod per node and i don't want to replicate my pod if that is killed/terminated.
having said that i want to listen this applications on some ports...so my questions are as below
1) How to open multiple ports for the application which are running on multiple nodes on single pod.
2) i have some configuration files which are in a shell script with environment variables defined within..how to inject this script on to my application which is already running.
kubernetes configuration-management
asked Jun 3 at 9:36
Ravikumar SubramanianRavikumar Subramanian
62
I would suggest you also to adjust a title of your question as right now it suggests issue when using Kubernetes together with some Configuration Management tool (Chef, Puppet, Anisble) whereas it's in fact about general Kubernetes concepts like Services.
– Nepomucen
Jun 6 at 14:40
add a comment |
I have deployed my Ni-Fi application using Kubernetes on-prem setup. Now the image which i am using to spin up the docker container is from docker private registry, which i can see when i deployed using Daemon sets service because my requirement is to spin up only one Pod per node and i don't want to replicate my pod if that is killed/terminated.
having said that i want to listen this applications on some ports...so my questions are as below
1) How to open multiple ports for the application which are running on multiple nodes on single pod.
2) i have some configuration files which are in a shell script with environment variables defined within..how to inject this script on to my application which is already running.
kubernetes configuration-management
asked Jun 3 at 9:36
Ravikumar SubramanianRavikumar Subramanian
62
I have deployed my Ni-Fi application using Kubernetes on-prem setup. Now the image which i am using to spin up the docker container is from docker private registry, which i can see when i deployed using Daemon sets service because my requirement is to spin up only one Pod per node and i don't want to replicate my pod if that is killed/terminated.
having said that i want to listen this applications on some ports...so my questions are as below
1) How to open multiple ports for the application which are running on multiple nodes on single pod.
2) i have some configuration files which are in a shell script with environment variables defined within..how to inject this script on to my application which is already running.
kubernetes configuration-management
kubernetes configuration-management
asked Jun 3 at 9:36
Ravikumar SubramanianRavikumar Subramanian
62
asked Jun 3 at 9:36
Ravikumar SubramanianRavikumar Subramanian
62
asked Jun 3 at 9:36
Ravikumar SubramanianRavikumar Subramanian
62
asked Jun 3 at 9:36
Ravikumar SubramanianRavikumar Subramanian
62
asked Jun 3 at 9:36
Ravikumar SubramanianRavikumar Subramanian
62
62
I would suggest you also to adjust a title of your question as right now it suggests issue when using Kubernetes together with some Configuration Management tool (Chef, Puppet, Anisble) whereas it's in fact about general Kubernetes concepts like Services.
– Nepomucen
Jun 6 at 14:40
add a comment |
I would suggest you also to adjust a title of your question as right now it suggests issue when using Kubernetes together with some Configuration Management tool (Chef, Puppet, Anisble) whereas it's in fact about general Kubernetes concepts like Services.
– Nepomucen
Jun 6 at 14:40
I would suggest you also to adjust a title of your question as right now it suggests issue when using Kubernetes together with some Configuration Management tool (Chef, Puppet, Anisble) whereas it's in fact about general Kubernetes concepts like Services.
– Nepomucen
Jun 6 at 14:40
I would suggest you also to adjust a title of your question as right now it suggests issue when using Kubernetes together with some Configuration Management tool (Chef, Puppet, Anisble) whereas it's in fact about general Kubernetes concepts like Services.
– Nepomucen
Jun 6 at 14:40
add a comment |
1 Answer
1
active
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votes
Welcome on StackExchange @Ravikumar
Ad. 1 - How to open multiple ports for the application which are running on multiple nodes on single pod
- You need to define what ports are opened in your container inside of Pod spec. e.g:
apiVersion: v1
kind: Pod
metadata:
labels:
app: example-app
name: example-app
namespace: default
spec:
containers:
name: multi-port
image: perl
command:
- perl
- -Mbignum=bpi
- -wle
- print bpi(2000)
ports:
- containerPort: 8080
- containerPort: 8081
- Expose your workload externally using Service, e.g.
apiVersion: v1
kind: Service
metadata:
name: my-app-svc
spec:
selector:
app: example-app
ports:
- name: http
protocol: TCP
port: 8080
targetPort: 8080
- name: monitoring
protocol: TCP
port: 8081
targetPort: 8081
From now on you can refer to your app, distributed over different nodes (Pod replicas) using service DNS name + Port: e.g. my-app-svc:8080 or my-app-svc:8081. Keep in mind this is a valid only within cluster, if your want to expose your app outside of Kubernetes cluster, check other option like ServiceType of LoadBalancer or NodePort, as described in official doc here.
Ad. 2 - For defining environment variables for Pod's container check in official doc here.
answered Jun 6 at 14:22
NepomucenNepomucen
2314
i have tried the following yaml file with DS it generated one pod per node with the image pulled and also listening on the ports which i mentioned inside, however i am unable to see the commands which are mounted as volume is not passed to the images...can someone tell me why? or what this file needs to execute those scripts within the container image
– Ravikumar Subramanian
Jun 7 at 11:44
It would be really better if you create a new topic on Stack, your problem seems to be not related anyhow to the original question.
– Nepomucen
Jun 7 at 12:53
yes it is @ superuser.com/questions/1446034/…
– Ravikumar Subramanian
Jun 7 at 13:01
add a comment |
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1 Answer
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1 Answer
1
active
oldest
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oldest
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oldest
votes
Welcome on StackExchange @Ravikumar
Ad. 1 - How to open multiple ports for the application which are running on multiple nodes on single pod
- You need to define what ports are opened in your container inside of Pod spec. e.g:
apiVersion: v1
kind: Pod
metadata:
labels:
app: example-app
name: example-app
namespace: default
spec:
containers:
name: multi-port
image: perl
command:
- perl
- -Mbignum=bpi
- -wle
- print bpi(2000)
ports:
- containerPort: 8080
- containerPort: 8081
- Expose your workload externally using Service, e.g.
apiVersion: v1
kind: Service
metadata:
name: my-app-svc
spec:
selector:
app: example-app
ports:
- name: http
protocol: TCP
port: 8080
targetPort: 8080
- name: monitoring
protocol: TCP
port: 8081
targetPort: 8081
From now on you can refer to your app, distributed over different nodes (Pod replicas) using service DNS name + Port: e.g. my-app-svc:8080 or my-app-svc:8081. Keep in mind this is a valid only within cluster, if your want to expose your app outside of Kubernetes cluster, check other option like ServiceType of LoadBalancer or NodePort, as described in official doc here.
Ad. 2 - For defining environment variables for Pod's container check in official doc here.
answered Jun 6 at 14:22
NepomucenNepomucen
2314
i have tried the following yaml file with DS it generated one pod per node with the image pulled and also listening on the ports which i mentioned inside, however i am unable to see the commands which are mounted as volume is not passed to the images...can someone tell me why? or what this file needs to execute those scripts within the container image
– Ravikumar Subramanian
Jun 7 at 11:44
It would be really better if you create a new topic on Stack, your problem seems to be not related anyhow to the original question.
– Nepomucen
Jun 7 at 12:53
yes it is @ superuser.com/questions/1446034/…
– Ravikumar Subramanian
Jun 7 at 13:01
add a comment |
Welcome on StackExchange @Ravikumar
Ad. 1 - How to open multiple ports for the application which are running on multiple nodes on single pod
- You need to define what ports are opened in your container inside of Pod spec. e.g:
apiVersion: v1
kind: Pod
metadata:
labels:
app: example-app
name: example-app
namespace: default
spec:
containers:
name: multi-port
image: perl
command:
- perl
- -Mbignum=bpi
- -wle
- print bpi(2000)
ports:
- containerPort: 8080
- containerPort: 8081
- Expose your workload externally using Service, e.g.
apiVersion: v1
kind: Service
metadata:
name: my-app-svc
spec:
selector:
app: example-app
ports:
- name: http
protocol: TCP
port: 8080
targetPort: 8080
- name: monitoring
protocol: TCP
port: 8081
targetPort: 8081
From now on you can refer to your app, distributed over different nodes (Pod replicas) using service DNS name + Port: e.g. my-app-svc:8080 or my-app-svc:8081. Keep in mind this is a valid only within cluster, if your want to expose your app outside of Kubernetes cluster, check other option like ServiceType of LoadBalancer or NodePort, as described in official doc here.
Ad. 2 - For defining environment variables for Pod's container check in official doc here.
answered Jun 6 at 14:22
NepomucenNepomucen
2314
i have tried the following yaml file with DS it generated one pod per node with the image pulled and also listening on the ports which i mentioned inside, however i am unable to see the commands which are mounted as volume is not passed to the images...can someone tell me why? or what this file needs to execute those scripts within the container image
– Ravikumar Subramanian
Jun 7 at 11:44
It would be really better if you create a new topic on Stack, your problem seems to be not related anyhow to the original question.
– Nepomucen
Jun 7 at 12:53
yes it is @ superuser.com/questions/1446034/…
– Ravikumar Subramanian
Jun 7 at 13:01
add a comment |
Welcome on StackExchange @Ravikumar
Ad. 1 - How to open multiple ports for the application which are running on multiple nodes on single pod
- You need to define what ports are opened in your container inside of Pod spec. e.g:
apiVersion: v1
kind: Pod
metadata:
labels:
app: example-app
name: example-app
namespace: default
spec:
containers:
name: multi-port
image: perl
command:
- perl
- -Mbignum=bpi
- -wle
- print bpi(2000)
ports:
- containerPort: 8080
- containerPort: 8081
- Expose your workload externally using Service, e.g.
apiVersion: v1
kind: Service
metadata:
name: my-app-svc
spec:
selector:
app: example-app
ports:
- name: http
protocol: TCP
port: 8080
targetPort: 8080
- name: monitoring
protocol: TCP
port: 8081
targetPort: 8081
From now on you can refer to your app, distributed over different nodes (Pod replicas) using service DNS name + Port: e.g. my-app-svc:8080 or my-app-svc:8081. Keep in mind this is a valid only within cluster, if your want to expose your app outside of Kubernetes cluster, check other option like ServiceType of LoadBalancer or NodePort, as described in official doc here.
Ad. 2 - For defining environment variables for Pod's container check in official doc here.
answered Jun 6 at 14:22
NepomucenNepomucen
2314
Welcome on StackExchange @Ravikumar
Ad. 1 - How to open multiple ports for the application which are running on multiple nodes on single pod
- You need to define what ports are opened in your container inside of Pod spec. e.g:
apiVersion: v1
kind: Pod
metadata:
labels:
app: example-app
name: example-app
namespace: default
spec:
containers:
name: multi-port
image: perl
command:
- perl
- -Mbignum=bpi
- -wle
- print bpi(2000)
ports:
- containerPort: 8080
- containerPort: 8081
- Expose your workload externally using Service, e.g.
apiVersion: v1
kind: Service
metadata:
name: my-app-svc
spec:
selector:
app: example-app
ports:
- name: http
protocol: TCP
port: 8080
targetPort: 8080
- name: monitoring
protocol: TCP
port: 8081
targetPort: 8081
From now on you can refer to your app, distributed over different nodes (Pod replicas) using service DNS name + Port: e.g. my-app-svc:8080 or my-app-svc:8081. Keep in mind this is a valid only within cluster, if your want to expose your app outside of Kubernetes cluster, check other option like ServiceType of LoadBalancer or NodePort, as described in official doc here.
Ad. 2 - For defining environment variables for Pod's container check in official doc here.
answered Jun 6 at 14:22
NepomucenNepomucen
2314
edited Jun 6 at 20:42
answered Jun 6 at 14:22
NepomucenNepomucen
2314
answered Jun 6 at 14:22
NepomucenNepomucen
2314
answered Jun 6 at 14:22
NepomucenNepomucen
2314
2314
i have tried the following yaml file with DS it generated one pod per node with the image pulled and also listening on the ports which i mentioned inside, however i am unable to see the commands which are mounted as volume is not passed to the images...can someone tell me why? or what this file needs to execute those scripts within the container image
– Ravikumar Subramanian
Jun 7 at 11:44
It would be really better if you create a new topic on Stack, your problem seems to be not related anyhow to the original question.
– Nepomucen
Jun 7 at 12:53
yes it is @ superuser.com/questions/1446034/…
– Ravikumar Subramanian
Jun 7 at 13:01
add a comment |
i have tried the following yaml file with DS it generated one pod per node with the image pulled and also listening on the ports which i mentioned inside, however i am unable to see the commands which are mounted as volume is not passed to the images...can someone tell me why? or what this file needs to execute those scripts within the container image
– Ravikumar Subramanian
Jun 7 at 11:44
It would be really better if you create a new topic on Stack, your problem seems to be not related anyhow to the original question.
– Nepomucen
Jun 7 at 12:53
yes it is @ superuser.com/questions/1446034/…
– Ravikumar Subramanian
Jun 7 at 13:01
i have tried the following yaml file with DS it generated one pod per node with the image pulled and also listening on the ports which i mentioned inside, however i am unable to see the commands which are mounted as volume is not passed to the images...can someone tell me why? or what this file needs to execute those scripts within the container image
– Ravikumar Subramanian
Jun 7 at 11:44
i have tried the following yaml file with DS it generated one pod per node with the image pulled and also listening on the ports which i mentioned inside, however i am unable to see the commands which are mounted as volume is not passed to the images...can someone tell me why? or what this file needs to execute those scripts within the container image
– Ravikumar Subramanian
Jun 7 at 11:44
It would be really better if you create a new topic on Stack, your problem seems to be not related anyhow to the original question.
– Nepomucen
Jun 7 at 12:53
It would be really better if you create a new topic on Stack, your problem seems to be not related anyhow to the original question.
– Nepomucen
Jun 7 at 12:53
yes it is @ superuser.com/questions/1446034/…
– Ravikumar Subramanian
Jun 7 at 13:01
yes it is @ superuser.com/questions/1446034/…
– Ravikumar Subramanian
Jun 7 at 13:01
add a comment |
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I would suggest you also to adjust a title of your question as right now it suggests issue when using Kubernetes together with some Configuration Management tool (Chef, Puppet, Anisble) whereas it's in fact about general Kubernetes concepts like Services.
– Nepomucen
Jun 6 at 14:40