LATEST POSTGRES APP VERSION HOW TO
LATEST POSTGRES APP VERSION UPGRADE

You can now start the database server using: auth-local and -auth-host, the next time you run initdb. You can change this by editing pg_hba.conf or using the option -A, or WARNING: enabling 'trust' authentication for local connections Performing post-bootstrap initialization. Selecting dynamic shared memory implementation. The default text search configuration will be set to 'english'.įixing permissions on existing directory /var/lib/postgresql/11/data. The default database encoding has accordingly been set to 'UTF8'. The database cluster will be initialized with locale 'en_US.utf8'. This user must also own the server process. The files belonging to this database system will be owned by user 'postgres'. If you do not do this correctly, the job will fail.Įxample expected output: $ k logs -f upgrade-postgres-mtgtd Make sure that the PGUSER and POSTGRES_INITDB_ARGS match the owner of the database.

LATEST POSTGRES APP VERSION UPGRADE

Start the upgrade job: kubectl apply -f k8s/upgrade-job.yaml # Retain, so we can switch the PV to a new PVC mountPath: /var/lib/postgresql/9.6/data image: tianon/postgres-upgrade:9.6-to-11 Save the following into upgrade-job.yaml: apiVersion: batch/v1 Wait until the database has shutdown, before moving to the next step. Next, scale the database to zero: kubectl scale -n default sts/gitlab-database -replicas 0 Kubectl rollout status sts/gitlab-database -n default apiVersion: apps/v1Īpply the manifests from above: kubectl apply -f k8s/database.yaml For this, we assume a Gitlab PostgreSQL database. The proces documented in this section uses a validation step before removing the old database data, but failure may happen and data lose can occur.įirst create the demo database. Important: before attempting this on production database, make sure you have a back-up. You can probably adopt the upgrade and upgrade-post-migration jobs to aid you in this.

LATEST POSTGRES APP VERSION HOW TO

This section describes a demo set-up on how to upgrade a Postgres 9.6 deployment to Postgres 11 on Kubernetes. Upgrade_1 | performing post-bootstrap initialization.

Upgrade_1 | creating configuration files. Upgrade_1 | selecting dynamic shared memory implementation. Upgrade_1 | selecting default shared_buffers. Upgrade_1 | selecting default max_connections. example: upgrade_1 | fixing permissions on existing directory /var/lib/postgresql/11/data. The upgrade step should handle this for you, but be sure to pay attention to the output of this. Post-Upgrade processing on pgupgrade docs) The script files will connect to each database that needs post-upgrade processing. It will also generate script files that must be run by the administrator. If any post-upgrade processing is required, pg_upgrade will issue warnings as it completes. It may generate a post-upgrade.sql file that needs to be run. !! Pay attention to the logging output during an upgrade. A new data directory for the new version of postgres.Also make sure you have a working back-up before starting. Please note that you will need to verify this approach on your set-up before attempting to upgrade production databases. This is done based on prior work done by tianon.

Please test this procedure in a test environment before updating your production PostgreSQL pods!.

This needs to be tweaked to work for your postgres set-up (mostly correct names of the pvc, correct subPath and postgres versions).

Check how to create a persistent volume snapshot.

Make sure you have back-ups of your data.

Provide production ready automation scripts to run this for large scale database deployments.

Upgrade from postgres 9.6 to postgres 11 with minimal risk and down time (or from 11 to 12).

This approach works between any PostgreSQL versions (such as 11 to 14). This may not be the right approach when using a PostgreSQL operator. You manage your own statefulset either through Helm or Kubernetes manifests. When you need to upgrade a PostgreSQL pod / statefulset from 9.6 to 11.

Latest postgres app version