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Add markdown highlighting to liveness user guide.

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This commit is contained in:
Alex Robinson 2015-07-18 18:43:15 -07:00
parent 0435f1c333
commit 02cdce3d7d
1 changed files with 12 additions and 12 deletions
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24
docs/user-guide/liveness/README.md
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@ -37,7 +37,7 @@ This example shows two types of pod [health checks](../production-pods.md#livene
The [exec-liveness.yaml](exec-liveness.yaml) demonstrates the container execution check. The [exec-liveness.yaml](exec-liveness.yaml) demonstrates the container execution check.
``` ```yaml
livenessProbe: livenessProbe:
exec: exec:
command: command:
@ -51,7 +51,7 @@ Kubelet executes the command `cat /tmp/health` in the container and reports fail
Note that the container removes the `/tmp/health` file after 10 seconds, Note that the container removes the `/tmp/health` file after 10 seconds,
``` ```sh
echo ok > /tmp/health; sleep 10; rm -rf /tmp/health; sleep 600 echo ok > /tmp/health; sleep 10; rm -rf /tmp/health; sleep 600
``` ```
@ -60,7 +60,7 @@ so when Kubelet executes the health check 15 seconds (defined by initialDelaySec
The [http-liveness.yaml](http-liveness.yaml) demonstrates the HTTP check. The [http-liveness.yaml](http-liveness.yaml) demonstrates the HTTP check.
``` ```yaml
livenessProbe: livenessProbe:
httpGet: httpGet:
path: /healthz path: /healthz
@ -77,15 +77,15 @@ This [guide](../walkthrough/k8s201.md#health-checking) has more information on h
To show the health check is actually working, first create the pods: To show the health check is actually working, first create the pods:
``` ```console
# kubectl create -f docs/user-guide/liveness/exec-liveness.yaml $ kubectl create -f docs/user-guide/liveness/exec-liveness.yaml
# kubectl create -f docs/user-guide/liveness/http-liveness.yaml $ kubectl create -f docs/user-guide/liveness/http-liveness.yaml
``` ```
Check the status of the pods once they are created: Check the status of the pods once they are created:
``` ```console
# kubectl get pods $ kubectl get pods
NAME READY STATUS RESTARTS AGE NAME READY STATUS RESTARTS AGE
[...] [...]
liveness-exec 1/1 Running 0 13s liveness-exec 1/1 Running 0 13s
@ -94,8 +94,8 @@ liveness-http 1/1 Running 0
Check the status half a minute later, you will see the container restart count being incremented: Check the status half a minute later, you will see the container restart count being incremented:
``` ```console
# kubectl get pods $ kubectl get pods
mwielgus@mwielgusd:~/test/k2/kubernetes/examples/liveness$ kubectl get pods mwielgus@mwielgusd:~/test/k2/kubernetes/examples/liveness$ kubectl get pods
NAME READY STATUS RESTARTS AGE NAME READY STATUS RESTARTS AGE
[...] [...]
@ -105,8 +105,8 @@ liveness-http 1/1 Running 1
At the bottom of the *kubectl describe* output there are messages indicating that the liveness probes have failed, and the containers have been killed and recreated. At the bottom of the *kubectl describe* output there are messages indicating that the liveness probes have failed, and the containers have been killed and recreated.
``` ```console
# kubectl describe pods liveness-exec $ kubectl describe pods liveness-exec
[...] [...]
Sat, 27 Jun 2015 13:43:03 +0200 Sat, 27 Jun 2015 13:44:34 +0200 4 {kubelet kubernetes-minion-6fbi} spec.containers{liveness} unhealthy Liveness probe failed: cat: can't open '/tmp/health': No such file or directory Sat, 27 Jun 2015 13:43:03 +0200 Sat, 27 Jun 2015 13:44:34 +0200 4 {kubelet kubernetes-minion-6fbi} spec.containers{liveness} unhealthy Liveness probe failed: cat: can't open '/tmp/health': No such file or directory
Sat, 27 Jun 2015 13:44:44 +0200 Sat, 27 Jun 2015 13:44:44 +0200 1 {kubelet kubernetes-minion-6fbi} spec.containers{liveness} killing Killing with docker id 65b52d62c635 Sat, 27 Jun 2015 13:44:44 +0200 Sat, 27 Jun 2015 13:44:44 +0200 1 {kubelet kubernetes-minion-6fbi} spec.containers{liveness} killing Killing with docker id 65b52d62c635