zookeeper

main usage

• ZooKeeper is a centralized service for maintaining configuration information, naming, providing distributed synchronization, and providing group services.

conceptions

• none

purpose

• prepare a kind cluster with basic components
• install zookeeper

installation

1. prepare a kind cluster with basic components
2. download and load images to qemu machine(run command at the host of qemu machine)
   • run scripts in download.and.load.function.sh to load function download_and_load

   • TOPIC_DIRECTORY="zookeeper.software"
     BASE_URL="https://resource.geekcity.tech/kubernetes/docker-images/x86_64"
     download_and_load $TOPIC_DIRECTORY $BASE_URL \
         "docker.io_bitnami_zookeeper_3.8.0-debian-10-r37.dim" \
         "docker.io_bitnami_bitnami-shell_10-debian-10-r40.dim"
     

3. install zookeeper
   • prepare zookeeper.values.yaml
   • prepare images
     • run scripts in load.image.function.sh to load function load_image

     • load_image "docker.registry.local:443" \
           "docker.io/bitnami/zookeeper:3.8.0-debian-10-r37" \
           "docker.io/bitnami/bitnami-shell:10-debian-10-r403"
       

   • install with helm

     • helm install \
           --create-namespace --namespace application \
           my-zookeeper \
           https://resource.geekcity.tech/kubernetes/charts/https/charts.bitnami.com/bitnami/zookeeper-9.1.1.tgz \
           --values zookeeper.values.yaml \
           --atomic
       

4. install zookeeper-tool
   • prepare zookeeper.tool.yaml

   • kubectl -n application apply -f zookeeper.tool.yaml
     

test with zookeeper-tool

1. connect to zookeeper

   • kubectl -n application exec -it deployment/zookeeper-tool -- \
         zkCli.sh -server my-zookeeper.application:2181 ls /
     kubectl -n application exec -it deployment/zookeeper-tool -- \
         zkCli.sh -server my-zookeeper.application:2181 create /zk_test
     kubectl -n application exec -it deployment/zookeeper-tool -- \
         zkCli.sh -server my-zookeeper.application:2181 ls /
     kubectl -n application exec -it deployment/zookeeper-tool -- \
         zkCli.sh -server my-zookeeper.application:2181 get /zk_test
     kubectl -n application exec -it deployment/zookeeper-tool -- \
         zkCli.sh -server my-zookeeper.application:2181 delete /zk_test
     kubectl -n application exec -it deployment/zookeeper-tool -- \
         zkCli.sh -server my-zookeeper.application:2181 ls /
     

uninstallation

1. uninstall zookeeper-tool

   • kubectl -n application delete -f zookeeper.tool.yaml
     

2. uninstall zookeeper

   • helm -n application uninstall my-zookeeper \
         && kubectl -n application delete pvc data-my-zookeeper-0 \
         && kubectl -n application delete pvc data-my-zookeeper-1 \
         && kubectl -n application delete pvc data-my-zookeeper-2