以Volume形式挂载cm到pod

redis.properties

[root@m-1 redis]# cat redis.properties redis.host=127.0.0.1 redis.port=6379 redis.password=123456

02_use-cm.yaml

[root@m-1 redis]# cat 02_use-cm.yaml apiVersion: v1 kind: Pod metadata:name: mypod spec:containers:- name: busyboximage: busyboxcommand: [ "/bin/sh","-c","cat /etc/config/redis.properties" ]volumeMounts:- name: config-volumemountPath: /etc/configvolumes:- name: config-volumeconfigMap:name: redis-configrestartPolicy: Never

start.sh

[root@m-1 redis]# cat start.sh #!/usr/bin/bashif [ -z "$(sudo kubectl get cm |grep redis)" ];then./01_create-redis-cm.sh fi sudo kubectl apply -f 02_use-cm.yaml

以变量形式挂载cm到pod

cm-var.yaml

[root@m-1 redis]# cat cm-var.yaml apiVersion: v1 kind: ConfigMap metadata:name: myconfig data:special.level: infospecial.type: hello

cm-var-pod.yaml

[root@m-1 redis]# cat cm-var-pod.yaml apiVersion: v1 kind: Pod metadata:name: mypod spec:containers:- name: busyboximage: busyboxcommand: [ "/bin/sh","-c","echo ${LEVEL} ${TYPE}" ]env:- name: LEVELvalueFrom:configMapKeyRef:name: myconfigkey: special.level- name: TYPEvalueFrom:configMapKeyRef:name: myconfigkey: special.typerestartPolicy: Never

start-cm-var.sh

[root@m-1 redis]# cat start-cm-var.sh #!/usr/bin/bashsudo kubectl apply -f cm-var.yaml sudo kubectl apply -f cm-var-pod.yaml

总结

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