How can PostgreSQL in k8s export query results and import them to the database on the local windows machine

Project under development , Need to put k8s Download the data in to the local database , Do some testing .

Get into postgresql, The query

kubectl get po -n infra

kubectl exec -it   postgres-0 -n infra -- bash

\c fs_resource_usage

such as ： You need to put the front of the above data 10 Strip export

Use postgresql The order of , Save the query results to pod Below directory

 COPY(select * from event where resource_type='COMPUTE'  ORDER BY created_at desc limit 10) to '/tmp/tmp.csv' with csv header;

Execute the above command , Will be in pod The Great Wall tmp.csv file

Use kubectl exec The order will pod Copy the file on to windows On the machine .

kubectl exec -n infra postgres-0 -- tar cf - tmp/ | tar xf - -C C:\\Users\\sunyuhua\\tmp

Note appended ： There are many commands for copying , Can pass kubectl cp --help see