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Add an option for enabling monitoring in gce/config-default.sh and disable it

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for tests.
Updated heapster readme.
This commit is contained in:
Vishnu Kannan 2014-11-06 22:25:18 +00:00
parent edf6d8ee3f
commit ad9cb982e5
4 changed files with 6 additions and 55 deletions
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2
cluster/gce/config-default.sh
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@ -35,3 +35,5 @@ MINION_SCOPES="compute-rw"
# Increase the sleep interval value if concerned about API rate limits. 3, in seconds, is the default. # Increase the sleep interval value if concerned about API rate limits. 3, in seconds, is the default.
POLL_SLEEP_INTERVAL=3 POLL_SLEEP_INTERVAL=3
PORTAL_NET="10.0.0.0/16" PORTAL_NET="10.0.0.0/16"
# When set to true, heapster will be setup as part of the cluster bring up.
MONITORING=true

1
cluster/gce/config-test.sh
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@ -35,3 +35,4 @@ MINION_SCOPES=""
# Increase the sleep interval value if concerned about API rate limits. 3, in seconds, is the default. # Increase the sleep interval value if concerned about API rate limits. 3, in seconds, is the default.
POLL_SLEEP_INTERVAL=3 POLL_SLEEP_INTERVAL=3
PORTAL_NET="10.0.0.0/16" PORTAL_NET="10.0.0.0/16"
MONITORING=false

5
cluster/gce/util.sh
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@ -575,10 +575,7 @@ function restart-kube-proxy {
# Setup monitoring using heapster and InfluxDB # Setup monitoring using heapster and InfluxDB
function setup-monitoring { function setup-monitoring {
read -p "Setup monitoring of the cluster using heapster (https://github.com/GoogleCloudPlatform/heapster) [Y|N]? " -n 1 -r if [ $MONITORING ]; then
echo
if [[ $REPLY =~ ^[Yy]$ ]]
then
teardown-monitoring teardown-monitoring
kubectl.sh create -f "${KUBE_ROOT}/examples/monitoring/influx-grafana-pod.json" && kubectl.sh create -f "${KUBE_ROOT}/examples/monitoring/influx-grafana-pod.json" &&
kubectl.sh create -f "${KUBE_ROOT}/examples/monitoring/influx-grafana-service.json" && kubectl.sh create -f "${KUBE_ROOT}/examples/monitoring/influx-grafana-service.json" &&

53
examples/monitoring/README.md
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@ -1,52 +1,3 @@
Heapster # Heapster
===========
Heapster enables monitoring of Kubernetes Clusters using [cAdvisor](https://github.com/google/cadvisor). It currently works only on GCE. Heapster enables monitoring of Kubernetes Clusters using [cAdvisor](https://github.com/google/cadvisor). Detailed information about heapster can be found [here](https://github.com/GoogleCloudPlatform/heapster).
#####Run Heapster in a Kubernetes cluster with an Influxdb backend and [Grafana](http://grafana.org/docs/features/influxdb)
**Step 1: Setup Kube cluster**
Fork the Kubernetes repository and [turn up a Kubernetes cluster](https://github.com/GoogleCloudPlatform/kubernetes-new#contents), if you haven't already. Make sure kubectl.sh is exported.
**Step 2: Start a Pod with Influxdb, grafana and elasticsearch**
```shell
$ kubectl.sh create -f deploy/influx-grafana-pod.json
```
**Step 3: Start Influxdb service**
```shell
$ kubectl.sh create -f deploy/influx-grafana-service.json
```
**Step 4: Update firewall rules**
Open up ports tcp:80,8083,8086,9200.
```shell
$ gcutil addfirewall --allowed=tcp:80,tcp:8083,tcp:8086,tcp:9200 --target_tags=kubernetes-minion heapster
```
**Step 5: Start Heapster Pod**
```shell
$ kubectl.sh create -f deploy/heapster-pod.json
```
Verify that all the pods and services are up and running:
```shell
$ kubectl.sh get pods
```
```shell
$ kubectl.sh get services
```
To start monitoring the cluster using grafana, find out the the external IP of the minion where the 'influx-grafana' Pod is running from the output of `kubectl.sh get pods`, and visit `http://<minion-ip>:80`.
To access the Influxdb UI visit `http://<minion-ip>:8083`.
#####Hints
* Grafana's default username and password is 'admin'. You can change that by modifying the grafana container [here](influx-grafana/deploy/grafana-influxdb-pod.json)
* To enable memory and swap accounting on the minions follow the instructions [here](https://docs.docker.com/installation/ubuntulinux/#memory-and-swap-accounting)