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Update output of kubectl in examples

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This commit is contained in:
Chao Xu 2015-07-07 22:52:52 -07:00
parent 127fe8d4a5
commit f8047aa635
6 changed files with 63 additions and 73 deletions
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52
examples/persistent-volumes/README.md
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@ -20,21 +20,17 @@ support local storage on the host at this time. There is no guarantee your pod
``` ```
// this will be nginx's webroot // this will be nginx's webroot
mkdir /tmp/data01 $ mkdir /tmp/data01
echo 'I love Kubernetes storage!' > /tmp/data01/index.html $ echo 'I love Kubernetes storage!' > /tmp/data01/index.html
``` ```
PVs are created by posting them to the API server. PVs are created by posting them to the API server.
``` ```
$ kubectl create -f examples/persistent-volumes/volumes/local-01.yaml
kubectl create -f examples/persistent-volumes/volumes/local-01.yaml NAME LABELS CAPACITY ACCESSMODES STATUS CLAIM REASON
kubectl get pv pv0001 type=local 10737418240 RWO Available
NAME LABELS CAPACITY ACCESSMODES STATUS CLAIM
pv0001 map[] 10737418240 RWO Available
``` ```
## Requesting storage ## Requesting storage
@ -46,9 +42,9 @@ Claims must be created in the same namespace as the pods that use them.
``` ```
kubectl create -f examples/persistent-volumes/claims/claim-01.yaml $ kubectl create -f examples/persistent-volumes/claims/claim-01.yaml
kubectl get pvc
$ kubectl get pvc
NAME LABELS STATUS VOLUME NAME LABELS STATUS VOLUME
myclaim-1 map[] myclaim-1 map[]
@ -56,17 +52,13 @@ myclaim-1 map[]
# A background process will attempt to match this claim to a volume. # A background process will attempt to match this claim to a volume.
# The eventual state of your claim will look something like this: # The eventual state of your claim will look something like this:
kubectl get pvc $ kubectl get pvc
NAME LABELS STATUS VOLUME
NAME LABELS STATUS VOLUME myclaim-1 map[] Bound pv0001
myclaim-1 map[] Bound f5c3a89a-e50a-11e4-972f-80e6500a981e
kubectl get pv
NAME LABELS CAPACITY ACCESSMODES STATUS CLAIM
pv0001 map[] 10737418240 RWO Bound myclaim-1 / 6bef4c40-e50b-11e4-972f-80e6500a981e
$ kubectl get pv
NAME LABELS CAPACITY ACCESSMODES STATUS CLAIM REASON
pv0001 type=local 10737418240 RWO Bound default/myclaim-1
``` ```
## Using your claim as a volume ## Using your claim as a volume
@ -74,19 +66,15 @@ pv0001 map[] 10737418240 RWO
Claims are used as volumes in pods. Kubernetes uses the claim to look up its bound PV. The PV is then exposed to the pod. Claims are used as volumes in pods. Kubernetes uses the claim to look up its bound PV. The PV is then exposed to the pod.
``` ```
$ kubectl create -f examples/persistent-volumes/simpletest/pod.yaml
kubectl create -f examples/persistent-volumes/simpletest/pod.yaml $ kubectl get pods
NAME READY STATUS RESTARTS AGE
mypod 1/1 Running 0 1h
kubectl get pods $ kubectl create -f examples/persistent-volumes/simpletest/service.json
$ kubectl get services
POD IP CONTAINER(S) IMAGE(S) HOST LABELS STATUS CREATED NAME LABELS SELECTOR IP(S) PORT(S)
mypod 172.17.0.2 myfrontend nginx 127.0.0.1/127.0.0.1 <none> Running 12 minutes
kubectl create -f examples/persistent-volumes/simpletest/service.json
kubectl get services
NAME LABELS SELECTOR IP PORT(S)
frontendservice <none> name=frontendhttp 10.0.0.241 3000/TCP frontendservice <none> name=frontendhttp 10.0.0.241 3000/TCP
kubernetes component=apiserver,provider=kubernetes <none> 10.0.0.2 443/TCP kubernetes component=apiserver,provider=kubernetes <none> 10.0.0.2 443/TCP

2
examples/persistent-volumes/simpletest/pod.yaml
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@ -7,7 +7,7 @@ metadata:
spec: spec:
containers: containers:
- name: myfrontend - name: myfrontend
image: dockerfile/nginx image: nginx
ports: ports:
- containerPort: 80 - containerPort: 80
name: "http-server" name: "http-server"

6
examples/phabricator/README.md
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@ -78,8 +78,8 @@ kubectl get pods
You'll see a single phabricator pod. It will also display the machine that the pod is running on once it gets placed (may take up to thirty seconds): You'll see a single phabricator pod. It will also display the machine that the pod is running on once it gets placed (may take up to thirty seconds):
``` ```
POD IP CONTAINER(S) IMAGE(S) HOST LABELS STATUS NAME READY STATUS RESTARTS AGE
phabricator-controller-02qp4 10.244.1.34 phabricator fgrzadkowski/phabricator kubernetes-minion-2.c.myproject.internal/130.211.141.151 name=phabricator phabricator-controller-9vy68 1/1 Running 0 1m
``` ```
If you ssh to that machine, you can run `docker ps` to see the actual pod: If you ssh to that machine, you can run `docker ps` to see the actual pod:
@ -203,7 +203,7 @@ phabricator
To play with the service itself, find the external IP of the load balancer: To play with the service itself, find the external IP of the load balancer:
```shell ```shell
$ kubectl get services guestbook -o template --template='{{(index .status.loadBalancer.ingress 0).ip}}' $ kubectl get services phabricator -o template --template='{{(index .status.loadBalancer.ingress 0).ip}}{{"\n"}}'
``` ```
and then visit port 80 of that IP address. and then visit port 80 of that IP address.

64
examples/resourcequota/README.md
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@ -42,17 +42,18 @@ namespace.
``` ```
$ kubectl describe quota quota --namespace=quota-example $ kubectl describe quota quota --namespace=quota-example
Name: quota Name: quota
Resource Used Hard Namespace: quota-example
-------- ---- ---- Resource Used Hard
cpu 0m 20 -------- ---- ----
memory 0m 1Gi cpu 0 20
persistentvolumeclaims 0m 10 memory 0 1Gi
pods 0m 10 persistentvolumeclaims 0 10
replicationcontrollers 0m 20 pods 0 10
resourcequotas 1 1 replicationcontrollers 0 20
secrets 1 10 resourcequotas 1 1
services 0m 5 secrets 1 10
services 0 5
``` ```
Step 3: Applying default resource limits Step 3: Applying default resource limits
@ -74,7 +75,7 @@ Now let's look at the pods that were created.
```shell ```shell
$ kubectl get pods --namespace=quota-example $ kubectl get pods --namespace=quota-example
POD IP CONTAINER(S) IMAGE(S) HOST LABELS STATUS CREATED MESSAGE NAME READY STATUS RESTARTS AGE
``` ```
What happened? I have no pods! Let's describe the replication controller to get a view of what is happening. What happened? I have no pods! Let's describe the replication controller to get a view of what is happening.
@ -101,11 +102,12 @@ So let's set some default limits for the amount of cpu and memory a pod can cons
$ kubectl create -f limits.yaml --namespace=quota-example $ kubectl create -f limits.yaml --namespace=quota-example
limitranges/limits limitranges/limits
$ kubectl describe limits limits --namespace=quota-example $ kubectl describe limits limits --namespace=quota-example
Name: limits Name: limits
Type Resource Min Max Default Namespace: quota-example
---- -------- --- --- --- Type Resource Min Max Default
Container cpu - - 100m ---- -------- --- --- ---
Container memory - - 512Mi Container memory - - 512Mi
Container cpu - - 100m
``` ```
Now any time a pod is created in this namespace, if it has not specified any resource limits, the default Now any time a pod is created in this namespace, if it has not specified any resource limits, the default
@ -116,26 +118,26 @@ create its pods.
```shell ```shell
$ kubectl get pods --namespace=quota-example $ kubectl get pods --namespace=quota-example
POD IP CONTAINER(S) IMAGE(S) HOST LABELS STATUS CREATED MESSAGE NAME READY STATUS RESTARTS AGE
nginx-t40zm 10.0.0.2 10.245.1.3/10.245.1.3 run=nginx Running 2 minutes nginx-t9cap 1/1 Running 0 49s
nginx nginx Running 2 minutes
``` ```
And if we print out our quota usage in the namespace: And if we print out our quota usage in the namespace:
```shell ```shell
kubectl describe quota quota --namespace=quota-example kubectl describe quota quota --namespace=quota-example
Name: quota Name: quota
Resource Used Hard Namespace: default
-------- ---- ---- Resource Used Hard
cpu 100m 20 -------- ---- ----
memory 536870912 1Gi cpu 100m 20
persistentvolumeclaims 0m 10 memory 536870912 1Gi
pods 1 10 persistentvolumeclaims 0 10
replicationcontrollers 1 20 pods 1 10
resourcequotas 1 1 replicationcontrollers 1 20
secrets 1 10 resourcequotas 1 1
services 0m 5 secrets 1 10
services 0 5
``` ```
You can now see the pod that was created is consuming explicit amounts of resources, and the usage is being You can now see the pod that was created is consuming explicit amounts of resources, and the usage is being

4
examples/spark/README.md
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@ -46,7 +46,7 @@ $ kubectl create -f examples/spark/spark-master-service.json
```shell ```shell
$ kubectl get pods $ kubectl get pods
NAME READY REASON RESTARTS AGE NAME READY STATUS RESTARTS AGE
[...] [...]
spark-master 1/1 Running 0 25s spark-master 1/1 Running 0 25s
@ -97,7 +97,7 @@ $ kubectl create -f examples/spark/spark-worker-controller.json
```shell ```shell
$ kubectl get pods $ kubectl get pods
NAME READY REASON RESTARTS AGE NAME READY STATUS RESTARTS AGE
[...] [...]
spark-master 1/1 Running 0 14m spark-master 1/1 Running 0 14m
spark-worker-controller-hifwi 1/1 Running 0 33s spark-worker-controller-hifwi 1/1 Running 0 33s

8
examples/storm/README.md
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@ -52,15 +52,15 @@ before proceeding.
```shell ```shell
$ kubectl get pods $ kubectl get pods
POD IP CONTAINER(S) IMAGE(S) HOST LABELS STATUS NAME READY STATUS RESTARTS AGE
zookeeper 192.168.86.4 zookeeper mattf/zookeeper 172.18.145.8/172.18.145.8 name=zookeeper Running zookeeper 1/1 Running 0 43s
``` ```
### Check to see if ZooKeeper is accessible ### Check to see if ZooKeeper is accessible
```shell ```shell
$ kubectl get services $ kubectl get services
NAME LABELS SELECTOR IP PORT NAME LABELS SELECTOR IP(S) PORT(S)
kubernetes component=apiserver,provider=kubernetes <none> 10.254.0.2 443 kubernetes component=apiserver,provider=kubernetes <none> 10.254.0.2 443
zookeeper name=zookeeper name=zookeeper 10.254.139.141 2181 zookeeper name=zookeeper name=zookeeper 10.254.139.141 2181
@ -94,7 +94,7 @@ Ensure that the Nimbus service is running and functional.
```shell ```shell
$ kubectl get services $ kubectl get services
NAME LABELS SELECTOR IP PORT NAME LABELS SELECTOR IP(S) PORT(S)
kubernetes component=apiserver,provider=kubernetes <none> 10.254.0.2 443 kubernetes component=apiserver,provider=kubernetes <none> 10.254.0.2 443
zookeeper name=zookeeper name=zookeeper 10.254.139.141 2181 zookeeper name=zookeeper name=zookeeper 10.254.139.141 2181
nimbus name=nimbus name=nimbus 10.254.115.208 6627 nimbus name=nimbus name=nimbus 10.254.115.208 6627