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hardcode to yaml file (#7948) 

* hardcode to yaml file

* add test instance.

* fix mistake

* fix mistake

* Uniform style
This commit is contained in:
chenhonggc 2018-04-07 22:07:08 +08:00 committed by k8s-ci-robot
parent fd81d48d58
commit 372a37141a
4 changed files with 102 additions and 90 deletions
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98
docs/tasks/debug-application-cluster/monitor-node-health.md
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@ -54,48 +54,10 @@ provides more flexible management, such as overwriting the default
configuration to fit it into your environment or detect
customized node problems.
* **Step 1:** Create `node-problem-detector.yaml`:
* **Step 1:** `node-problem-detector.yaml`:
{% include code.html language="yaml" file="node-problem-detector.yaml" ghlink="/docs/tasks/debug-application-cluster/node-problem-detector.yaml" %}
```yaml
apiVersion: extensions/v1beta1
kind: DaemonSet
metadata:
name: node-problem-detector-v0.1
namespace: kube-system
labels:
k8s-app: node-problem-detector
version: v0.1
kubernetes.io/cluster-service: "true"
spec:
template:
metadata:
labels:
k8s-app: node-problem-detector
version: v0.1
kubernetes.io/cluster-service: "true"
spec:
hostNetwork: true
containers:
- name: node-problem-detector
image: k8s.gcr.io/node-problem-detector:v0.1
securityContext:
privileged: true
resources:
limits:
cpu: "200m"
memory: "100Mi"
requests:
cpu: "20m"
memory: "20Mi"
volumeMounts:
- name: log
mountPath: /log
readOnly: true
volumes:
- name: log
hostPath:
path: /var/log/
```
***Notice that you should make sure the system log directory is right for your
OS distro.***
@ -103,7 +65,7 @@ OS distro.***
* **Step 2:** Start node problem detector with `kubectl`:
```shell
kubectl create -f node-problem-detector.yaml
kubectl create -f https://k8s.io/docs/tasks/debug-application-cluster/node-problem-detector.yaml
```
### Addon Pod
@ -128,58 +90,14 @@ following the steps:
node-problem-detector-config --from-file=config/`.
* **Step 3:** Change the `node-problem-detector.yaml` to use the ConfigMap:
```yaml
apiVersion: extensions/v1beta1
kind: DaemonSet
metadata:
name: node-problem-detector-v0.1
namespace: kube-system
labels:
k8s-app: node-problem-detector
version: v0.1
kubernetes.io/cluster-service: "true"
spec:
template:
metadata:
labels:
k8s-app: node-problem-detector
version: v0.1
kubernetes.io/cluster-service: "true"
spec:
hostNetwork: true
containers:
- name: node-problem-detector
image: k8s.gcr.io/node-problem-detector:v0.1
securityContext:
privileged: true
resources:
limits:
cpu: "200m"
memory: "100Mi"
requests:
cpu: "20m"
memory: "20Mi"
volumeMounts:
- name: log
mountPath: /log
readOnly: true
- name: config # Overwrite the config/ directory with ConfigMap volume
mountPath: /config
readOnly: true
volumes:
- name: log
hostPath:
path: /var/log/
- name: config # Define ConfigMap volume
configMap:
name: node-problem-detector-config
```
{% include code.html language="yaml" file="node-problem-detector-configmap.yaml" ghlink="/docs/tasks/debug-application-cluster/node-problem-detector-configmap.yaml" %}
* **Step 4:** Re-create the node problem detector with the new yaml file:
```shell
kubectl delete -f node-problem-detector.yaml # If you have a node-problem-detector running
kubectl create -f node-problem-detector.yaml
kubectl delete -f https://k8s.io/docs/tasks/debug-application-cluster/node-problem-detector.yaml # If you have a node-problem-detector running
kubectl create -f https://k8s.io/docs/tasks/debug-application-cluster/node-problem-detector-configmap.yaml
```
***Notice that this approach only applies to node problem detector started with `kubectl`.***

49
docs/tasks/debug-application-cluster/node-problem-detector-configmap.yaml Normal file
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@ -0,0 +1,49 @@
apiVersion: apps/v1
kind: DaemonSet
metadata:
name: node-problem-detector-v0.1
namespace: kube-system
labels:
k8s-app: node-problem-detector
version: v0.1
kubernetes.io/cluster-service: "true"
spec:
selector:
matchLabels:
k8s-app: node-problem-detector
version: v0.1
kubernetes.io/cluster-service: "true"
template:
metadata:
labels:
k8s-app: node-problem-detector
version: v0.1
kubernetes.io/cluster-service: "true"
spec:
hostNetwork: true
containers:
- name: node-problem-detector
image: k8s.gcr.io/node-problem-detector:v0.1
securityContext:
privileged: true
resources:
limits:
cpu: "200m"
memory: "100Mi"
requests:
cpu: "20m"
memory: "20Mi"
volumeMounts:
- name: log
mountPath: /log
readOnly: true
- name: config # Overwrite the config/ directory with ConfigMap volume
mountPath: /config
readOnly: true
volumes:
- name: log
hostPath:
path: /var/log/
- name: config # Define ConfigMap volume
configMap:
name: node-problem-detector-config

43
docs/tasks/debug-application-cluster/node-problem-detector.yaml Normal file
View File

@ -0,0 +1,43 @@
apiVersion: apps/v1
kind: DaemonSet
metadata:
name: node-problem-detector-v0.1
namespace: kube-system
labels:
k8s-app: node-problem-detector
version: v0.1
kubernetes.io/cluster-service: "true"
spec:
selector:
matchLabels:
k8s-app: node-problem-detector
version: v0.1
kubernetes.io/cluster-service: "true"
template:
metadata:
labels:
k8s-app: node-problem-detector
version: v0.1
kubernetes.io/cluster-service: "true"
spec:
hostNetwork: true
containers:
- name: node-problem-detector
image: k8s.gcr.io/node-problem-detector:v0.1
securityContext:
privileged: true
resources:
limits:
cpu: "200m"
memory: "100Mi"
requests:
cpu: "20m"
memory: "20Mi"
volumeMounts:
- name: log
mountPath: /log
readOnly: true
volumes:
- name: log
hostPath:
path: /var/log/

2
test/examples_test.go
View File

@ -427,6 +427,8 @@ func TestExampleObjectSchemas(t *testing.T) {
"fluentd-gcp-ds": {&extensions.DaemonSet{}},
"nginx-dep": {&extensions.Deployment{}},
"shell-demo": {&api.Pod{}},
"node-problem-detector": {&extensions.DaemonSet{}},
"node-problem-detector-configmap": {&extensions.DaemonSet{}},
"termination": {&api.Pod{}},
},
// TODO: decide whether federation examples should be added