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dh02391735
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stackoverflow-kubernetes-questions

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###Instruction: I'm able to connect to an ElastiCache Redis instance in a VPC from EC2 instances. But I would like to know if there is a way to connect to an ElastiCache Redis node outside of Amazon EC2 instances, such as from my local dev setup or VPS instances provided by other vendors. Currently when trying from my ...	I'm able to connect to an ElastiCache Redis instance in a VPC from EC2 instances. But I would like to know if there is a way to connect to an ElastiCache Redis node outside of Amazon EC2 instances, such as from my local dev setup or VPS instances provided by other vendors. Currently when trying from my local set up: re...	SSH port forwarding should do the trick. Try running this from you client. ssh -f -N -L 6379:<your redis node endpoint>:6379 <your EC2 node that you use to connect to redis> Then from your client redis-cli -h 127.0.0.1 -p 6379 It works for me. Please note that default port for redis is 6379 not 6739. And also make su...
###Instruction: I've got the following ReplicationController JSON defined: { "id": "PHPController", "kind": "ReplicationController", "apiVersion": "v1beta1", "desiredState": { "replicas": 2, "replicaSelector": {"name": "php"}, "podTemplate": { "desiredState": { "manifest": { ...	I've got the following ReplicationController JSON defined: { "id": "PHPController", "kind": "ReplicationController", "apiVersion": "v1beta1", "desiredState": { "replicas": 2, "replicaSelector": {"name": "php"}, "podTemplate": { "desiredState": { "manifest": { "version": "v1...	Solved. The volumes syntax was incorrect. https://github.com/GoogleCloudPlatform/kubernetes/issues/1446
###Instruction: I'm trying to eval Kubernetes. I interesting to mount kubernetes on CoreOS cluster, and official documentation not have much, only have two references to blog of CoreOS; I'm currently using guide to running kubernetes example on CoreOS part 1. My apiserver.service: [Unit] ConditionFileIsExecutable=/opt...	I'm trying to eval Kubernetes. I interesting to mount kubernetes on CoreOS cluster, and official documentation not have much, only have two references to blog of CoreOS; I'm currently using guide to running kubernetes example on CoreOS part 1. My apiserver.service: [Unit] ConditionFileIsExecutable=/opt/kubernetes/bin/...	The errors you are seeing in your log is that the pod you are trying to create has a port conflict with the Kubernetes API server. Both are trying to use port 8080. Fix this issue by changing the pod to run on another port. You'll have to clean things up first. So remove the redis pod using kubecfg command. Update the ...
###Instruction: Can you think of Azure Resource Manager as the equivalent to what kubernetes is for Docker? ### Response: I think that the two are slightly different (caveat: I have only cursory knowledge of Resource Manager) Azure Resource Manager lets you think about a collection of separate resources as a single c...	Can you think of Azure Resource Manager as the equivalent to what kubernetes is for Docker?	I think that the two are slightly different (caveat: I have only cursory knowledge of Resource Manager) Azure Resource Manager lets you think about a collection of separate resources as a single composite application. Much like Google's Deployment Manager. It makes it easier to create repeatable deployments, and mak...
###Instruction: On AWS, I'm hosting Multiple (totally different) Domains on EC2 covered by an ELB on top. I already have 1 Wildcard SSL Cert for 1 Domain and its childs. (xxxx.site1.com) Then now can I add one more Single SSL Cert (on same ELB) for 1 another different Domain, like (www.site2.com) please? I'm asking th...	On AWS, I'm hosting Multiple (totally different) Domains on EC2 covered by an ELB on top. I already have 1 Wildcard SSL Cert for 1 Domain and its childs. (xxxx.site1.com) Then now can I add one more Single SSL Cert (on same ELB) for 1 another different Domain, like (www.site2.com) please? I'm asking this because some ...	No. The only way you could do it is if you use a second port for HTTPS connections (other than 443) which doesn't apply to real world scenarios since 443 is the default port for HTTPS Having said that, you can simply create a second ELB and assign your second wildcard certificate to it. You can also forward your traffi...
###Instruction: I'm trying to follow the directions to get the Google Cloud Platform kubernetes GuestBook example running. I've got a "kubernetes-guestbook-example" project ID with billing enabled in the Google Developer's Console under my account and i do a "gcloud auth login" to ensure i'm running as that account. St...	I'm trying to follow the directions to get the Google Cloud Platform kubernetes GuestBook example running. I've got a "kubernetes-guestbook-example" project ID with billing enabled in the Google Developer's Console under my account and i do a "gcloud auth login" to ensure i'm running as that account. Step zero says tha...	It's been a while, but i recall that the problem occurred because billing must be enabled for the application in the Google Developer Console. An easy catch once you get used to the platform but non-obvious when you're climbing the learning curve.
###Instruction: So I figured I should start using Ansible Galaxy when possible, instead of writing my own roles. I just installed my first role and it was installed to /etc/local/ansible/roles (I am on OSX). Now I wonder how you install this roles where I actually need it? Do I just copy the role to where I need it or ...	So I figured I should start using Ansible Galaxy when possible, instead of writing my own roles. I just installed my first role and it was installed to /etc/local/ansible/roles (I am on OSX). Now I wonder how you install this roles where I actually need it? Do I just copy the role to where I need it or is there an Ansi...	Yes, you would copy them according to a sample project structure: site.yml webservers.yml fooservers.yml kubernetes.yaml roles/ common/ files/ templates/ tasks/ handlers/ vars/ meta/ webservers/ files/ templates/ tasks/ handlers/ vars/ meta/ kubernete...
###Instruction: What exactly is the difference between Apache's Mesos and Google's Kubernetes? I understand both are server cluster management software. Can anyone elaborate where the main differences are - when would which framework be preferred? Why would you want to use Kubernetes on top of Mesosphere? ### Response...	What exactly is the difference between Apache's Mesos and Google's Kubernetes? I understand both are server cluster management software. Can anyone elaborate where the main differences are - when would which framework be preferred? Why would you want to use Kubernetes on top of Mesosphere?	Kubernetes is an open source project that brings 'Google style' cluster management capabilities to the world of virtual machines, or 'on the metal' scenarios. It works very well with modern operating system environments (like CoreOS or Red Hat Atomic) that offer up lightweight computing 'nodes' that are managed for y...
###Instruction: I would like to create a kubernetes pod that contains 2 containers, both with different images, so I can start both containers together. Currently I have tried the following configuration: { "id": "podId", "desiredState": { "manifest": { "version": "v1beta1", "id": "podId", "co...	I would like to create a kubernetes pod that contains 2 containers, both with different images, so I can start both containers together. Currently I have tried the following configuration: { "id": "podId", "desiredState": { "manifest": { "version": "v1beta1", "id": "podId", "containers": [{ ...	The error in question here is "failed to find fit". This generally happens when you have a port conflict (try and use the same hostPort too many times or perhaps you don't have any worker nodes/minions. I'd suggest you either use the Vagrant file that is in the Kubernetes git repo (see http://kubernetes.io) as we have...
###Instruction: I am not sure either what I am trying to do is possible or correct way. One of my colleague spinup kubernetes gce cluster (with 1 master and 4 minions.) in a project which is shared with me as owner access. After setup he shared his ~/.kubernetes_auth keys along with .kubecfg.crt, .kubecfg.ca.crt and .k...	I am not sure either what I am trying to do is possible or correct way. One of my colleague spinup kubernetes gce cluster (with 1 master and 4 minions.) in a project which is shared with me as owner access. After setup he shared his ~/.kubernetes_auth keys along with .kubecfg.crt, .kubecfg.ca.crt and .kubecfg.key. I co...	You can also copy the cert files off of the master again. They are located in /usr/share/nginx on the master.
###Instruction: I tried to create a new cluster in Container Engine in the Google Developers Console. It finished pretty quickly with a yellow triangle with an exclamation point. I'm assuming that means it didn't work. Any idea what I could be doing wrong? ### Response: There's a few things that could go wrong. The be...	I tried to create a new cluster in Container Engine in the Google Developers Console. It finished pretty quickly with a yellow triangle with an exclamation point. I'm assuming that means it didn't work. Any idea what I could be doing wrong?	There's a few things that could go wrong. The best option to figure out what's wrong in your situation is to try using the gcloud command line tool, which gives better error information. Information about how to install and use it is in Container Engine's documentation. Other than the default network being removed (as ...
###Instruction: How do I run a docker image that I built locally on Google Container Engine? ### Response: You can push your image to Google Container Registry and reference them from your pod manifest. Detailed instructions Assuming you have a DOCKER_HOST properly setup , a GKE cluster running the last version of Kub...	How do I run a docker image that I built locally on Google Container Engine?	You can push your image to Google Container Registry and reference them from your pod manifest. Detailed instructions Assuming you have a DOCKER_HOST properly setup , a GKE cluster running the last version of Kubernetes and Google Cloud SDK installed. Setup some environment variables gcloud components update kubectl g...
###Instruction: I understand the Container Engine is currently on alpha and not yet complete. From the docs I assume there is no auto-scaling of pods (e.g. depending on CPU load) yet, correct? I'd love to be able to configure a replication controller to automatically add pods (and VM instances) when the average CPU loa...	I understand the Container Engine is currently on alpha and not yet complete. From the docs I assume there is no auto-scaling of pods (e.g. depending on CPU load) yet, correct? I'd love to be able to configure a replication controller to automatically add pods (and VM instances) when the average CPU load reaches a defi...	As we work towards a Beta release, we're definitely looking at integrating the Google Compute Engine AutoScaler. There are actually two different kinds of scaling: Scaling up/down the number of worker nodes in the cluster depending on # of containers in the cluster Scaling pods up and down. Since Kubernetes is an OSS...
###Instruction: If I start a Google Container Engine cluster like this: gcloud container clusters --zone=$ZONE create $CLUSTER_NAME I get three worker nodes. How can I create a cluster with more? ### Response: It's possible to create a different number of worker nodes by using the --num-nodes option when you create ...	If I start a Google Container Engine cluster like this: gcloud container clusters --zone=$ZONE create $CLUSTER_NAME I get three worker nodes. How can I create a cluster with more?	It's possible to create a different number of worker nodes by using the --num-nodes option when you create the cluster, like this: gcloud container clusters --zone=$ZONE create $CLUSTER_NAME --num-nodes=5
###Instruction: I'm very interesting in the new Google Cloud Service: Google Container Engine, namely in be a able to write systems that can scale using containers' properties. I saw the StackOverflow questions: Autoscaling in Google Container Engine Increasing the cluster size in Google Container Engine And I unders...	I'm very interesting in the new Google Cloud Service: Google Container Engine, namely in be a able to write systems that can scale using containers' properties. I saw the StackOverflow questions: Autoscaling in Google Container Engine Increasing the cluster size in Google Container Engine And I understood that the au...	Kubernetes roadmap is here: https://github.com/kubernetes/kubernetes/blob/master/docs/roadmap.md Unfortunately, Google Container Engine hasn't released a roadmap yet.
###Instruction: There is problem , I can't link my pod container with persistent storage This is config of my pod, where elastic is the name of the attached disk (same region, mounted and formatted as should), when I start the pod with this config I have this error: Unable to mount volumes for pod elastic.etcd I could ...	There is problem , I can't link my pod container with persistent storage This is config of my pod, where elastic is the name of the attached disk (same region, mounted and formatted as should), when I start the pod with this config I have this error: Unable to mount volumes for pod elastic.etcd I could link my containe...	There is an example of mounting a PD in the github documentation: https://github.com/GoogleCloudPlatform/kubernetes/blob/master/docs/volumes.md#creating-a-pd PDs in GCE can only be attached to a single VM (in read/write mode), so if the disk is already attached to your master then it will not be possible to also attach...
###Instruction: I am not sure either what I am trying to do is possible or correct way. One of my colleague spinup kubernetes gce cluster (with 1 master and 4 minions.) in a project which is shared with me as owner access. After setup he shared his ~/.kubernetes_auth keys along with .kubecfg.crt, .kubecfg.ca.crt and .k...	I am not sure either what I am trying to do is possible or correct way. One of my colleague spinup kubernetes gce cluster (with 1 master and 4 minions.) in a project which is shared with me as owner access. After setup he shared his ~/.kubernetes_auth keys along with .kubecfg.crt, .kubecfg.ca.crt and .kubecfg.key. I co...	It is probably due to a not implemented feature, see this issue: https://github.com/GoogleCloudPlatform/kubernetes/issues/1886 you can copy the files from /usr/share/nginx/... on the master into your home dir and try again.
###Instruction: I installed an 8-node kubernetes cluster (1 master + 7 minion) but I faced a networking problem among minions. I installed my cluster according to this step-by-step Fedora manual, so I use Fedora 20 with its testing repository to get kubernetes binaries. After installing, I wanted to try the guestbook e...	I installed an 8-node kubernetes cluster (1 master + 7 minion) but I faced a networking problem among minions. I installed my cluster according to this step-by-step Fedora manual, so I use Fedora 20 with its testing repository to get kubernetes binaries. After installing, I wanted to try the guestbook example, but it s...	The Fedora guide you followed will only get you running on a single machine. It avoids the issues around setting up networking across nodes. For kubernetes to work, the following network set up must be satisfied: Every container should be able to talk to every other container, even across nodes. This means also that...
###Instruction: I have read some introduction of these projects, but still cannot get a clear idea of the difference between Kubernetes and Flynn/Deis. Can anyone help? ### Response: Kubernetes is really three things: A way to dynamically schedule containers (actually, sets of containers called pods) to a cluster of ...	I have read some introduction of these projects, but still cannot get a clear idea of the difference between Kubernetes and Flynn/Deis. Can anyone help?	Kubernetes is really three things: A way to dynamically schedule containers (actually, sets of containers called pods) to a cluster of machines. Manage and horizontally scale a lot of those pods using labels and helpers (ReplicationController) Communicate between sets of pods via services, expose a set of pods externa...
###Instruction: I'm running (from Windows 8.1) a Vagrant VM for CoreOS (yungsang/coreos). I installed kubernetes according to the guide I found here and created the json for the pod using my images. When I execute sudo ./kubecfg list /pods I get the following error: F0909 06:03:04.626251 01933 kubecfg.go:182] Got reque...	I'm running (from Windows 8.1) a Vagrant VM for CoreOS (yungsang/coreos). I installed kubernetes according to the guide I found here and created the json for the pod using my images. When I execute sudo ./kubecfg list /pods I get the following error: F0909 06:03:04.626251 01933 kubecfg.go:182] Got request error: Get ht...	Kubernetes development is moving insanely fast right now so this could be out of date by tomorrow. With that in mind, the kubernetes folks recommend following one of their official installation guides. The best advice would be to start over fresh with one of the new installation guides but there are a few tips that I...
###Instruction: I have been working with Docker the last days and I have created a basic Docker image with a Dockerfile. It just starts a web server. Now, I have been reading further and created an account at Google Application Engine and want to deploy this image to Kubernetes. I feel lost. I don't understand how my ...	I have been working with Docker the last days and I have created a basic Docker image with a Dockerfile. It just starts a web server. Now, I have been reading further and created an account at Google Application Engine and want to deploy this image to Kubernetes. I feel lost. I don't understand how my Dockerfiles that...	I have not worked with Kubernetes, but as far as I know, I think you have to upload to containers to a docker image repository. You can use the official hub and upload your images there (public images are free to upload, and you can have one private for free or pay for more). Also you can have a private docker image re...
###Instruction: What is the usual way to organize pods in a cluster in Kubernetes? I have a Jenkins build server, Docker registry, Git repository and other development tools that I want to run in Google Container Engine. Do I create one cluster for each of them? Or can multiple pods be scheduled on each node? So my qu...	What is the usual way to organize pods in a cluster in Kubernetes? I have a Jenkins build server, Docker registry, Git repository and other development tools that I want to run in Google Container Engine. Do I create one cluster for each of them? Or can multiple pods be scheduled on each node? So my question is: Would...	To answer your first question, multiple pods can be scheduled on each node. One of the best parts about Google Container Engine / Kubernetes is that it is really flexible, so you can structure your services in the way that works best for you. For your specific use case, I think that a single cluster would make sense b...
###Instruction: How does pods that are controlled by a replication controller and "hidden" behind a service in Kubernetes write/read data? If I have an application that recieves images from the user that needs to be persisted, where do I store that? Because of the service in front I have no control over which node it i...	How does pods that are controlled by a replication controller and "hidden" behind a service in Kubernetes write/read data? If I have an application that recieves images from the user that needs to be persisted, where do I store that? Because of the service in front I have no control over which node it is stored at if I...	I think the "simple" answer to your question is that you will need shared storage under you Kubernetes cluster, so that every pods access the same data. Then it wouldn't matter where the pods are running and which pod is actually executing the service. May be another solution would be Flocker, they describe themself in...
###Instruction: It seems like the best way to deploy a external facing application on Google Cloud would be to create an external load balancer with this line in the service configuration: { ... "createExternalLoadBalancer": true ... } This doesn't seem to work for AWS. I'm getting the following error when running...	It seems like the best way to deploy a external facing application on Google Cloud would be to create an external load balancer with this line in the service configuration: { ... "createExternalLoadBalancer": true ... } This doesn't seem to work for AWS. I'm getting the following error when running the service cre...	This is still a work in progress. Please see: https://github.com/GoogleCloudPlatform/kubernetes/pull/2672 For a proposal that starts to add support for AWS ELBs to Kubernetes, we're working to get that pull request integrated. Thanks!
###Instruction: I am trying to run two Dockers on the same Kubernetes pod and I want one of the Docker container always to run before the other. I remember learning about specifying such dependency on the pod configuration file, but can not find that now. Kubernetes documentation does not explain it either. Here is th...	I am trying to run two Dockers on the same Kubernetes pod and I want one of the Docker container always to run before the other. I remember learning about specifying such dependency on the pod configuration file, but can not find that now. Kubernetes documentation does not explain it either. Here is the example pod co...	Kubernetes currently does not allow specification of container startup dependencies. There has been some discussion in GitHub issues 1996 and 1589 that might help you out.
###Instruction: I am trying to connect to a Docker container on Google Container Engine(GKE) from my local machine through the internet by TCP protocol. So far I have used Kubernetes services which gives an external IP address, so the local machine can connect to the container on GKE using the service. When we create a...	I am trying to connect to a Docker container on Google Container Engine(GKE) from my local machine through the internet by TCP protocol. So far I have used Kubernetes services which gives an external IP address, so the local machine can connect to the container on GKE using the service. When we create a service, we can...	I don't think there is currently a better solution than what you are doing. There is already a related issue, kubernetes issue 1802, about having multiple ports per service. I mentioned your requirements on that issue. You might want to follow up there with more information about your use case, such as what program ...
###Instruction: We are looking into using Docker plus either Mesos/Marathon or Kubernetes for hosting a cluster. However, the one issue that we haven't really seen any answers for is how to allow clustered services to connect to each other correctly. All of the ones that I have seen need to know about at least one ot...	We are looking into using Docker plus either Mesos/Marathon or Kubernetes for hosting a cluster. However, the one issue that we haven't really seen any answers for is how to allow clustered services to connect to each other correctly. All of the ones that I have seen need to know about at least one other node before ...	However, the one issue that we haven't really seen any answers for is how to allow clustered services to connect to each other correctly. I think you're talking about HA/replicated/sharded apps here. At the moment, in kubernetes, you can accomplish this by making an api call listing all the "endpoints" of the service...
###Instruction: I've read that AWS does not support Kubernetes and builds their own Docker orchestration engine EC2 Container Service. However, on Kubernetes getting-started -page there is a guide on how to run Kubernetes on AWS: https://github.com/GoogleCloudPlatform/kubernetes/blob/master/docs/getting-started-gui...	I've read that AWS does not support Kubernetes and builds their own Docker orchestration engine EC2 Container Service. However, on Kubernetes getting-started -page there is a guide on how to run Kubernetes on AWS: https://github.com/GoogleCloudPlatform/kubernetes/blob/master/docs/getting-started-guides/aws.md Which...	You can install Kubernetes on a normal Amazon EC2 server. The new container service is a separate offering by Amazon, called ECS. EDIT: AWS released in 2018 a new container service for Kubernetes called EKS: https://aws.amazon.com/eks/ Amazon Elastic Container Service for Kubernetes (Amazon EKS) makes it easy to dep...
###Instruction: Kubernetes is billed as a container cluster "scheduler/orchestrator", but I have no idea what this means. After reading the Kubernetes site and (vague) GitHub wiki, the best I can tell is that its somehow figures out what VMs are available/capable of running your Docker container, and then deploys them ...	Kubernetes is billed as a container cluster "scheduler/orchestrator", but I have no idea what this means. After reading the Kubernetes site and (vague) GitHub wiki, the best I can tell is that its somehow figures out what VMs are available/capable of running your Docker container, and then deploys them there. But that ...	The purpose of Kubernetes is to make it easier to organize and schedule your application across a fleet of machines. At a high level it is an operating system for your cluster. Basically, it allows you to not worry about what specific machine in your datacenter each application runs on. Additionally it provides gener...
###Instruction: I am trying to consume an event stream provided by the Kubernetes api using the requests module. I have run into what looks like a buffering problem: the requests module seems to lag by one event. I have code that looks something like this: r = requests.get('http://localhost:8080/api/v1beta1/watch/ser...	I am trying to consume an event stream provided by the Kubernetes api using the requests module. I have run into what looks like a buffering problem: the requests module seems to lag by one event. I have code that looks something like this: r = requests.get('http://localhost:8080/api/v1beta1/watch/services', ...	This behavior is due to a buggy implementation of the iter_lines method in the requests library. iter_lines iterates over the response content in chunk_size blocks of data using the iter_content iterator. If there are less than chunk_size bytes of data available for reading from the remote server (which will typically...
###Instruction: Kubernetes has master and minion nodes. Will (can) Kubernetes run specified Docker containers on the master node(s)? I guess another way of saying it is: can a master also be a minion? Thanks for any assistance. ### Response: Update 2015-08-06: As of PR #12349 (available in 1.0.3 and will be available ...	Kubernetes has master and minion nodes. Will (can) Kubernetes run specified Docker containers on the master node(s)? I guess another way of saying it is: can a master also be a minion? Thanks for any assistance.	Update 2015-08-06: As of PR #12349 (available in 1.0.3 and will be available in 1.1 when it ships), the master node is now one of the available nodes in the cluster and you can schedule pods onto it just like any other node in the cluster. A docker container can only be scheduled onto a kubernetes node running a kube...
###Instruction: What is the best way to deploy Google service account credentials inside a custom built CentOS Docker container for running either on Google's Container Engine or their 'container-vm'? This behavior happens automatically on the google/cloud-sdk container, which runs debian and includes things I'm not u...	What is the best way to deploy Google service account credentials inside a custom built CentOS Docker container for running either on Google's Container Engine or their 'container-vm'? This behavior happens automatically on the google/cloud-sdk container, which runs debian and includes things I'm not using such as app...	Update: as of 15 Dec 2016, the ability to update the scopes of an existing VM is now in beta; see this SO answer for more details. Old answer: One approach is to create the VM with appropriate scopes (e.g., Google Cloud Storage read-only or read-write) and then all processes on the VM, including containers, will have ...
###Instruction: What patterns are valid in kubernetes for the names of containers and ports? I had underscores in the names of ports and containers and got an error. Replacing the underscores with hyphens worked. ### Response: Container names and port names must conform to the RFC 1123 definition of a DNS label. Names...	What patterns are valid in kubernetes for the names of containers and ports? I had underscores in the names of ports and containers and got an error. Replacing the underscores with hyphens worked.	Container names and port names must conform to the RFC 1123 definition of a DNS label. Names must be no longer than 63 characters, must start and end with a lowercase letter or number, and may contain lowercase letters, numbers, and hyphens. Expressed as a regular expression: [a-z0-9]([-a-z0-9]*[a-z0-9])? Here's the a...
###Instruction: I would like to try Kubernetes' hooks but I didn't find any example how I should do it. As far as I know, with this hooks I can run bash scripts in freshly created containers and prior to terminate them. I've found just a short documentation which say this is possible but that's all. Do somebody have an...	I would like to try Kubernetes' hooks but I didn't find any example how I should do it. As far as I know, with this hooks I can run bash scripts in freshly created containers and prior to terminate them. I've found just a short documentation which say this is possible but that's all. Do somebody have an example or some...	I don't see any examples .yaml files, but Kubernetes API v1 describes the lifecycle events in the same manner. Currently, only PostStart and PreStop are defined and you should be able to use them by adding a lifecycle section to a container in your pod definition. Based on reading the API definition, something like th...
###Instruction: I wonder if it is possible to change labels of pods on the fly so services route requests to those pods based on new labels. For example I have two services A and B. Then I have 10 pods, where 5 have label type = A (matches service A) and the other 5 have label type = B (matches service B). At some poin...	I wonder if it is possible to change labels of pods on the fly so services route requests to those pods based on new labels. For example I have two services A and B. Then I have 10 pods, where 5 have label type = A (matches service A) and the other 5 have label type = B (matches service B). At some point I want to chan...	You can change the labels on individual pods using the kubectl label command, documented here. Changing the label of a running pod should not cause it to be restarted, and services will automatically detect and handle label changes. So in other words, yes you can :)
###Instruction: is it possible to autoscale docker containers, which contain application servers (like wildfly/tomcat/jetty/) within kubernetes ? For example at cpu & ram use or based on http requests ? If there is a build in feature for that i can't find it, or is it possible to write something like a configuration sc...	is it possible to autoscale docker containers, which contain application servers (like wildfly/tomcat/jetty/) within kubernetes ? For example at cpu & ram use or based on http requests ? If there is a build in feature for that i can't find it, or is it possible to write something like a configuration script for this ? ...	Autoscaling of containers is not yet supported and is not part of the near term 1.0 roadmap for Kubernetes (meaning that the core team isn't going to add it soon but external contributions are certainly welcome).
###Instruction: I am relatively new to all these, but I'm having troubles getting a clear picture among the listed technologies. Though, all of these try to solve different problems, but do have things in common too. I would like to understand what are the things that are common and what is different. It is likely tha...	I am relatively new to all these, but I'm having troubles getting a clear picture among the listed technologies. Though, all of these try to solve different problems, but do have things in common too. I would like to understand what are the things that are common and what is different. It is likely that the combinatio...	Disclosure: I'm a lead engineer on Kubernetes I think that Mesos and Kubernetes are largely aimed at solving similar problems of running clustered applications, they have different histories and different approaches to solving the problem. Mesos focuses its energy on very generic scheduling, and plugging in multiple di...
###Instruction: Using fleet I can specify a command to be run inside the container when it is started. It seems like this should be easily possible with Kubernetes as well, but I can't seem to find anything that says how. It seems like you have to create the container specifically to launch with a certain command. Havi...	Using fleet I can specify a command to be run inside the container when it is started. It seems like this should be easily possible with Kubernetes as well, but I can't seem to find anything that says how. It seems like you have to create the container specifically to launch with a certain command. Having a general pur...	I spend 45 minutes looking for this. Then I post a question about it and find the solution 9 minutes later. There is an hint at what I wanted inside the Cassandra example. The command line below the image: id: cassandra kind: Pod apiVersion: v1beta1 desiredState: manifest: version: v1beta1 id: cassandra c...
###Instruction: I see Mesosphere building all kinds of applications on the Mesos Framework like Hadoop, Kubernetes, etc. but since there is the Marathon applications for long-running services, why not just use that? E.g. why not setup Kubernetes nodes on a bunch of Marathon services? Why implement Kubernetes directly o...	I see Mesosphere building all kinds of applications on the Mesos Framework like Hadoop, Kubernetes, etc. but since there is the Marathon applications for long-running services, why not just use that? E.g. why not setup Kubernetes nodes on a bunch of Marathon services? Why implement Kubernetes directly on Framework API?...	Apache Mesos is a 2-level scheduler. The purpose of a framework is to provide the intelligence of high-level scheduling. Marathon provides the ability to schedule a task in the cluster, queue that task for scheduling and re-queue tasks that have failed. It is great at keeping long running processes running. It is l...
###Instruction: Can Kubernetes automatically add or reduce the number of pods，when it monitors for increases or decreases in load (i.e. CPU load, traffic)? If it's possible, how can I configure it? ### Response: Auto scaling of pods is not yet available, but it's definitely on our roadmap, as mentioned by Brendan in a...	Can Kubernetes automatically add or reduce the number of pods，when it monitors for increases or decreases in load (i.e. CPU load, traffic)? If it's possible, how can I configure it?	Auto scaling of pods is not yet available, but it's definitely on our roadmap, as mentioned by Brendan in a previous answer. It could actually be easily built outside of the core of Kubernetes, using the public Kubernetes API. If you'd rather wait for someone else to build it, though, it looks like a contributor has st...