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oracle_kubernetes

May 02, 2024, 2 min read

https://github.com/javiermugueta/k8s-orcldb

https://kubernetes.io/docs/tasks/configure-pod-container/configure-persistent-volume-storage/

  • https://container-registry.oracle.com
    • Create an account and make note of user pass (david@gmail.com/PASS_GOES_HERE)
  • k3d cluster create mycluster
    • This will create 1 docker process (slave and master will be on the same kubernetes node)
  • Kubernetes Secrets to store Database and Oracle Container Registry (OCR) credentials
    • docker login container-registry.oracle.com
      • User/pass from container-registry.oracle.com from step#1
    • kubectl create secret generic regcred —from-file=.dockerconfigjson=$HOME/.docker/config.json  —type=kubernetes.io/dockerconfigjson
      • Creates Kubernetes secret using OCR credentials
  • Run the commands below
    • kubectl get nodes
    • docker exec -it <ENTER_NODE_NAME_HERE> sh
      • This will shell you into the node
    • Make an oracle folder under /tmp/oracle (this needs to be done on all master/slave nodes)
      • Make an oradata folder (mkdir oradata)
      • Make a scripts folder (mkdir scripts)
        • Make a startup folder (mkdir startup)
          • This is where you can add all SQL files that will be run at startup
        • Make a setup folder (mkdir setup)
    • chmod 777 all folders created under /tmp
  • kubectl apply -f orcldb3.yaml
  • kubectl get pods
    • kubectl describe pod <ENTER_POD_NUMBER_HERE>  (to get details)
    • Kubectl logs <ENTER_POD_NUMBER_HERE> —follow (to see the database be created)
  • kubectl exec -it <ENTER_POD_NUMBER_HERE> sqlplus / as sysdba 
  • kubectl exec -it pods/orcldb-5549d599b-qtsxr — sqlplus pdbadmin/PASS_GOES_HERE@ORCLPDB1

SSH into node

kubectl get nodes
docker exec -it k3d-demo-server-0 sh

Create oracle folders

cd tmp
ls
mkdir oracle
cd oracle/
mkdir oradata
mkdir scripts
cd scripts/
mkdir startup
mkdir setup
cd startup/
touch 01_tbl.sql
vi 01_tbl.sql (ESC :w ENTER | ESC :x ENTER)
chmod 777 oracle/
cd oracle/
chmod oradata/
chmod 777 oradata/
chmod 777 scripts/

To log into Enterprise Manager

https://172.27.0.2:5500/em/login

  • User - sys
  • Pass - YOUR_PASS_GOES_HERE
  • Container name - leave this blank

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