Re: [kubernetes-users] What is the best way to deploy the Redis cluster

2017-07-23 Thread Rodrigo Campos 
You can specify a volume id, but then only have one replica. And, to
deploy, then you need downtime.

With a PVC and something smarter, you might be able to do some more cool
things.

But don't underestimate the power of simplicity, if it's enough for your
use case :-)

On Thursday, July 20, 2017, Guang Ya Liu  wrote:

> Thanks Rodrigo!
>
> But even with deployment, I can still have volume mounts in the deployment
> to mount to external storage, so even using deployment, I can still have 
> persistency,
> right?
>
> For statefulset, I can use volumeClaimTemplates to mount PVCs to have 
> persistency,
> but how an it make upgrade easily? Also I can always rolling upgrade a
> Deployment for this case, comments?
>
> Thanks,
>
> Guangya
>
> On Thu, Jul 20, 2017 at 11:35 AM, Rodrigo Campos  > wrote:
>
>> If you use redis without persistency, probably a deployment is fine.
>>
>> Stateful sets are newer, and might help you (didn't look at the yaml) to
>> manage persistency in redis (and redis upgraded, etc.) More easily
>>
>>
>> On Wednesday, July 19, 2017, Guangya Liu > > wrote:
>>
>>> Hi,
>>>
>>> I found that there are two ways to deploy a Redis cluster, one is in
>>> openshift, it is using statefulset https://github.com
>>> /openshift/origin/blob/master/examples/statefulsets/redis/redis.yaml
>>>
>>> And another is in Kuberntes helm charts, it is using Deployment +
>>> Service to deploy the Redis cluster https://github.com/kub
>>> ernetes/charts/tree/master/stable/redis/templates
>>>
>>> Using statefulset can make sure the hostname of redis will never change
>>> even after redis restart, and the application can always use hostname to
>>> access redis.
>>>
>>> Using deployment and service can enable other applications using service
>>> to access the redis, which also works even after the redis restart.
>>>
>>> Does there are any recommendations for which one is better, or this
>>> depend on user scenarios?
>>>
>>> Thanks,
>>>
>>> Guangya
>>>
>>> --
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>>>
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>
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Re: [kubernetes-users] What is the best way to deploy the Redis cluster

2017-07-21 Thread Guang Ya Liu 
+ Kubernetes dev, hope can get more comments/suggestions here.

Thanks,

Guangya

On Fri, Jul 21, 2017 at 8:42 AM, Guang Ya Liu  wrote:

> Thanks Rodrigo!
>
> But even with deployment, I can still have volume mounts in the deployment
> to mount to external storage, so even using deployment, I can still have 
> persistency,
> right?
>
> For statefulset, I can use volumeClaimTemplates to mount PVCs to have 
> persistency,
> but how an it make upgrade easily? Also I can always rolling upgrade a
> Deployment for this case, comments?
>
> Thanks,
>
> Guangya
>
> On Thu, Jul 20, 2017 at 11:35 AM, Rodrigo Campos 
> wrote:
>
>> If you use redis without persistency, probably a deployment is fine.
>>
>> Stateful sets are newer, and might help you (didn't look at the yaml) to
>> manage persistency in redis (and redis upgraded, etc.) More easily
>>
>>
>> On Wednesday, July 19, 2017, Guangya Liu  wrote:
>>
>>> Hi,
>>>
>>> I found that there are two ways to deploy a Redis cluster, one is in
>>> openshift, it is using statefulset https://github.com
>>> /openshift/origin/blob/master/examples/statefulsets/redis/redis.yaml
>>>
>>> And another is in Kuberntes helm charts, it is using Deployment +
>>> Service to deploy the Redis cluster https://github.com/kub
>>> ernetes/charts/tree/master/stable/redis/templates
>>>
>>> Using statefulset can make sure the hostname of redis will never change
>>> even after redis restart, and the application can always use hostname to
>>> access redis.
>>>
>>> Using deployment and service can enable other applications using service
>>> to access the redis, which also works even after the redis restart.
>>>
>>> Does there are any recommendations for which one is better, or this
>>> depend on user scenarios?
>>>
>>> Thanks,
>>>
>>> Guangya
>>>
>>> --
>>> You received this message because you are subscribed to the Google
>>> Groups "Kubernetes user discussion and Q" group.
>>> To unsubscribe from this group and stop receiving emails from it, send
>>> an email to kubernetes-users+unsubscr...@googlegroups.com.
>>> To post to this group, send email to kubernetes-users@googlegroups.com.
>>> Visit this group at https://groups.google.com/group/kubernetes-users.
>>> For more options, visit https://groups.google.com/d/optout.
>>>
>> --
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>> "Kubernetes user discussion and Q" group.
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>> For more options, visit https://groups.google.com/d/optout.
>>
>
>

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Re: [kubernetes-users] What is the best way to deploy the Redis cluster

2017-07-20 Thread Guang Ya Liu 
Thanks Rodrigo!

But even with deployment, I can still have volume mounts in the deployment
to mount to external storage, so even using deployment, I can still
have persistency,
right?

For statefulset, I can use volumeClaimTemplates to mount PVCs to have
persistency,
but how an it make upgrade easily? Also I can always rolling upgrade a
Deployment for this case, comments?

Thanks,

Guangya

On Thu, Jul 20, 2017 at 11:35 AM, Rodrigo Campos 
wrote:

> If you use redis without persistency, probably a deployment is fine.
>
> Stateful sets are newer, and might help you (didn't look at the yaml) to
> manage persistency in redis (and redis upgraded, etc.) More easily
>
>
> On Wednesday, July 19, 2017, Guangya Liu  wrote:
>
>> Hi,
>>
>> I found that there are two ways to deploy a Redis cluster, one is in
>> openshift, it is using statefulset https://github.com
>> /openshift/origin/blob/master/examples/statefulsets/redis/redis.yaml
>>
>> And another is in Kuberntes helm charts, it is using Deployment + Service
>> to deploy the Redis cluster https://github.com/kub
>> ernetes/charts/tree/master/stable/redis/templates
>>
>> Using statefulset can make sure the hostname of redis will never change
>> even after redis restart, and the application can always use hostname to
>> access redis.
>>
>> Using deployment and service can enable other applications using service
>> to access the redis, which also works even after the redis restart.
>>
>> Does there are any recommendations for which one is better, or this
>> depend on user scenarios?
>>
>> Thanks,
>>
>> Guangya
>>
>> --
>> You received this message because you are subscribed to the Google Groups
>> "Kubernetes user discussion and Q" group.
>> To unsubscribe from this group and stop receiving emails from it, send an
>> email to kubernetes-users+unsubscr...@googlegroups.com.
>> To post to this group, send email to kubernetes-users@googlegroups.com.
>> Visit this group at https://groups.google.com/group/kubernetes-users.
>> For more options, visit https://groups.google.com/d/optout.
>>
> --
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> Visit this group at https://groups.google.com/group/kubernetes-users.
> For more options, visit https://groups.google.com/d/optout.
>

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Re: [kubernetes-users] What is the best way to deploy the Redis cluster

2017-07-19 Thread Rodrigo Campos 
If you use redis without persistency, probably a deployment is fine.

Stateful sets are newer, and might help you (didn't look at the yaml) to
manage persistency in redis (and redis upgraded, etc.) More easily

On Wednesday, July 19, 2017, Guangya Liu  wrote:

> Hi,
>
> I found that there are two ways to deploy a Redis cluster, one is in
> openshift, it is using statefulset https://github.
> com/openshift/origin/blob/master/examples/statefulsets/redis/redis.yaml
>
> And another is in Kuberntes helm charts, it is using Deployment + Service
> to deploy the Redis cluster https://github.com/
> kubernetes/charts/tree/master/stable/redis/templates
>
> Using statefulset can make sure the hostname of redis will never change
> even after redis restart, and the application can always use hostname to
> access redis.
>
> Using deployment and service can enable other applications using service
> to access the redis, which also works even after the redis restart.
>
> Does there are any recommendations for which one is better, or this depend
> on user scenarios?
>
> Thanks,
>
> Guangya
>
> --
> You received this message because you are subscribed to the Google Groups
> "Kubernetes user discussion and Q" group.
> To unsubscribe from this group and stop receiving emails from it, send an
> email to kubernetes-users+unsubscr...@googlegroups.com
> 
> .
> To post to this group, send email to kubernetes-users@googlegroups.com
> .
> Visit this group at https://groups.google.com/group/kubernetes-users.
> For more options, visit https://groups.google.com/d/optout.
>

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[kubernetes-users] What is the best way to deploy the Redis cluster

2017-07-19 Thread Guangya Liu 
Hi,

I found that there are two ways to deploy a Redis cluster, one is in 
openshift, it is using 
statefulset 
https://github.com/openshift/origin/blob/master/examples/statefulsets/redis/redis.yaml

And another is in Kuberntes helm charts, it is using Deployment + Service 
to deploy the Redis 
cluster https://github.com/kubernetes/charts/tree/master/stable/redis/templates

Using statefulset can make sure the hostname of redis will never change 
even after redis restart, and the application can always use hostname to 
access redis.

Using deployment and service can enable other applications using service to 
access the redis, which also works even after the redis restart.

Does there are any recommendations for which one is better, or this depend 
on user scenarios?

Thanks,

Guangya

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