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/posgresql
pg_dumpall -U postgres > backup

• store backup off-site

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

upgrade

• upgrade auth chart
• set replica of the keycloak statefulSet to 0
• set replica of the postgres-auth statefulSet to 0
• delete postgres-auth PVC and POD to flush old DB

restore

• restore replica of postgres-auth statefulSet
• 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 in case the keycloak instances connected early

DROP database keycloak

• actual restore

psql -U postgres -d postgres -f backup

• reset replia of keycloak statefulSet or force ArgoCD sync

success.