通过Rancher部署并扩容Kubernetes集群基础篇二
2021-06-24 07:04
标签:rancher k8s 接上一篇通过Rancher部署并扩容Kubernetes集群基础篇一 7. 使用ConfigMap配置redis https://github.com/kubernetes/kubernetes.github.io/blob/master/docs/user-guide/configmap/redis/redis-config redis-config redis-pod.yaml 8. 使用kubectl命令管理kubernetes对象 或者 使用kubectl create创建一个配置文件中定义的对象 删除两个配置文件中定义的对象 更新对象 处理configs目录下所有的对象配置文件,创建新的对象或者打补丁现有的对象 递推处理子目录下的对象配置文件 9. 部署无状态应用 9.1 使用deployment运行一个无状态应用 deployment.yaml 这里需要注意一下,rancher1.6.2部署的是kubernetes 1.5.4 这里的apiVersion要改一下,改成extensions/v1beta1 kubernetes从1.6引入apps/v1beta1.Deployment 替代 extensions/v1beta1.Deployment 显示这个deployment的信息 10.部署有状态应用 本文出自 “Linux SA John” 博客,请务必保留此出处http://john88wang.blog.51cto.com/2165294/1946903 通过Rancher部署并扩容Kubernetes集群基础篇二 标签:rancher k8s 原文地址:http://john88wang.blog.51cto.com/2165294/1946903maxmemory 2mb
maxmemory-policy allkeys-lru
# kubectl create configmap example-redis-config --from-file=./redis-config
# kubectl get configmap example-redis-config -o yaml
apiVersion: v1
data:
redis-config: |
maxmemory 2mb
maxmemory-policy allkeys-lru
kind: ConfigMap
metadata:
creationTimestamp: 2017-07-12T13:27:56Z
name: example-redis-config
namespace: default
resourceVersion: "45707"
selfLink: /api/v1/namespaces/default/configmaps/example-redis-config
uid: eab522fd-6705-11e7-94da-02672b869d7f
apiVersion: v1
kind: Pod
metadata:
name: redis
spec:
containers:
- name: redis
image: kubernetes/redis:v1
env:
- name: MASTER
value: "true"
ports:
- containerPort: 6379
resources:
limits:
cpu: "0.1"
volumeMounts:
- mountPath: /redis-master-data
name: data
- mountPath: /redis-master
name: config
volumes:
- name: data
emptyDir: {}
- name: config
configMap:
name: example-redis-config
items:
- key: redis-config
path: redis.conf
# kubectl create -f redis-pod.yaml
pod "redis" created
# kubectl exec -it redis redis-cli
127.0.0.1:6379>
127.0.0.1:6379>
127.0.0.1:6379> config get maxmemory
1) "maxmemory"
2) "2097152"
127.0.0.1:6379> config get maxmemory-policy
1) "maxmemory-policy"
2) "allkeys-lru"
127.0.0.1:6379>
# kubectl run nginx --image nginx
deployment "nginx" created
# kubectl create deployment nginx --image nginx
#kubectl create -f nginx.yaml
#kubectl delete -f nginx.yaml -f redis.yaml
#kubectl replace -f nginx.yaml
#kubectl apply -f configs/
#kubectl apply -R -f configs/
apiVersion: apps/v1beta1
kind: Deployment
metadata:
name: nginx-deployment
spec:
replicas: 2 # tells deployment to run 2 pods matching the template
template: # create pods using pod definition in this template
metadata:
# unlike pod-nginx.yaml, the name is not included in the meta data as a unique name is
# generated from the deployment name
labels:
app: nginx
spec:
containers:
- name: nginx
image: nginx:1.7.9
ports:
- containerPort: 80
kubectl create -f https://k8s.io/docs/tasks/run-application/deployment.yaml
# kubectl describe deployment nginx-deployment
文章标题:通过Rancher部署并扩容Kubernetes集群基础篇二
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