KubeZero/charts/kubezero-auth/docs/postgres.md

Upgrade Postgres major version

backup

• shell into running posgres-auth pod

export PGPASSWORD="<postgres_password from secret>"
cd /bitnami/posgres
pg_dumpall > backup

• store backup off-site

kubectl cp keycloak/kubezero-auth-postgresql-0:/bitnami/postgresql/backup postgres-backup

upgrade

• upgrade auth chart

• delete postgres-auth PVC and POD to flush old DB

restore

• copy backup to new PVC

kubectl cp postgres-backup keycloak/kubezero-auth-postgresql-0:/bitnami/postgresql/backup

• log into psql as admin ( shell on running pod )

psql -U postgres

• drop database keycloak

DROP database keycloak

if keycloak is running and postgres complains about connected users simply kill the keycloak and retry

• actual restore

psql -U postgres -d postgres -f backup

• restart keycloak once more

success.