PGO: The Postgres Operator from Crunchy Data
Production Postgres Made Easy
PGO, the Postgres Operator from Crunchy Data, gives you a declarative Postgres solution that automatically manages your PostgreSQL clusters.
Designed for your GitOps workflows, it is easy to get started with Postgres on Kubernetes with PGO. Within a few moments, you can have a production-grade Postgres cluster complete with high availability, disaster recovery, and monitoring, all over secure TLS communications. Even better, PGO lets you easily customize your Postgres cluster to tailor it to your workload!
With conveniences like cloning Postgres clusters to using rolling updates to roll out disruptive changes with minimal downtime, PGO is ready to support your Postgres data at every stage of your release pipeline. Built for resiliency and uptime, PGO will keep your Postgres cluster in its desired state, so you do not need to worry about it.
PGO is developed with many years of production experience in automating Postgres management on Kubernetes, providing a seamless cloud native Postgres solution to keep your data always available.
Have questions or looking for help? Join our Discord group.
Build Instructions
To build the various containers required by PGO, please see the build instructions found in the components directory of this repository.
These images are built using packages developed by the PostgreSQL Global Development Group (PGDG). Each subdirectory contains a README file describing how to build each of the various containers required by PGO.
Installation
Crunchy Data makes PGO available as the orchestration behind Crunchy Postgres for Kubernetes. Crunchy Postgres for Kubernetes is the integrated product that includes PostgreSQL, PGO and a collection of PostgreSQL tools and extensions that includes the various open source components listed in the documentation.
We recommend following our Quickstart for how to install and get up and running. However, if you can’t wait to try it out, here are some instructions to get Postgres up and running on Kubernetes:
- Fork the Postgres Operator examples repository and clone it to your host machine. For example:
YOUR_GITHUB_UN="<your GitHub username>"
git clone --depth 1 "[email protected]:${YOUR_GITHUB_UN}/postgres-operator-examples.git"
cd postgres-operator-examples
- Run the following commands
kubectl apply -k kustomize/install/namespace
kubectl apply --server-side -k kustomize/install/default
For more information please read the Quickstart and Tutorial.
These installation instructions provide the steps necessary to install PGO along with Crunchy Data’s Postgres distribution, Crunchy Postgres, as Crunchy Postgres for Kubernetes. In doing so the installation downloads a series of container images from Crunchy Data’s Developer Portal. For more information on the use of container images downloaded from the Crunchy Data Developer Portal or other third party sources, please see ‘License and Terms’ below. The installation and use of PGO outside of the use of Crunchy Postgres for Kubernetes will require modifications of these installation instructions and creation of the necessary PostgreSQL and related containers.
Cloud Native Postgres for Kubernetes
PGO, the Postgres Operator from Crunchy Data, comes with all of the features you need for a complete cloud native Postgres experience on Kubernetes!
Create, Scale, & Delete PostgreSQL clusters with ease, while fully customizing your
Pods and PostgreSQL configuration!
Safe, automated failover backed by a distributed consensus high availability solution.
Uses Pod Anti-Affinity to help resiliency; you can configure how aggressive this can be!
Failed primaries automatically heal, allowing for faster recovery time.
Support for standby PostgreSQL clusters that work both within and across multiple Kubernetes clusters.
Backups and restores leverage the open source pgBackRest utility and
includes support for full, incremental, and differential backups as well as efficient delta restores.
Set how long you to retain your backups. Works great with very large databases!
Security and TLS
PGO enforces that all connections are over TLS. You can also bring your own TLS infrastructure if you do not want to use the defaults provided by PGO.
PGO runs containers with locked-down settings and provides Postgres credentials in a secure, convenient way for connecting your applications to your data.
Track the health of your PostgreSQL clusters using the open source pgMonitor library.
Safely apply PostgreSQL updates with minimal impact to the availability of your PostgreSQL clusters.
Advanced Replication Support
Choose between asynchronous and synchronous replication
for workloads that are sensitive to losing transactions.
Create new clusters from your existing clusters or backups with efficient data cloning.
Advanced connection pooling support using pgBouncer.
Pod Anti-Affinity, Node Affinity, Pod Tolerations
Have your PostgreSQL clusters deployed to Kubernetes Nodes of your preference. Set your pod anti-affinity, node affinity, Pod tolerations, and more rules to customize your deployment topology!
Choose the type of backup (full, incremental, differential) and how frequently you want it to occur on each PostgreSQL cluster.
Backup to Local Storage, S3, GCS, Azure, or a Combo!
Store your backups in Amazon S3 or any object storage system that supports
the S3 protocol. You can also store backups in Google Cloud Storage and Azure Blob Storage.
You can also mix-and-match: PGO lets you store backups in multiple locations.
PGO makes it easy to fully customize your Postgres cluster to tailor to your workload:
Deploy PGO to watch Postgres clusters in all of your namespaces, or restrict which namespaces you want PGO to manage Postgres clusters in!
Included Components
PostgreSQL containers deployed with the PostgreSQL Operator include the following components:
In addition to the above, the geospatially enhanced PostgreSQL + PostGIS container adds the following components:
PostgreSQL Operator Monitoring uses the following components:
For more information about which versions of the PostgreSQL Operator include which components, please visit the compatibility section of the documentation.
PGO, the Postgres Operator from Crunchy Data, is tested on the following platforms:
- Kubernetes
- OpenShift
- Rancher
- Google Kubernetes Engine (GKE), including Anthos
- Amazon EKS
- Microsoft AKS
- VMware Tanzu
Contributing to the Project
Want to contribute to the PostgreSQL Operator project? Great! We’ve put together
a set of contributing guidelines that you can review here:
Once you are ready to submit a Pull Request, please ensure you do the following:
- Reviewing the contributing guidelines and ensure
that you have followed the commit message format, added testing where
appropriate, documented your changes, etc.
- Open up a pull request based upon the guidelines. If you are adding a new
feature, please open up the pull request on the
main branch.
- Please be as descriptive in your pull request as possible. If you are
referencing an issue, please be sure to include the issue in your pull request
Support
If you believe you have found a bug or have a detailed feature request, please open a GitHub issue and follow the guidelines for submitting a bug.
For general questions or community support, we welcome you to join our community Discord and ask your questions there.
For other information, please visit the Support section of the documentation.
Documentation
For additional information regarding the design, configuration, and operation of the
PostgreSQL Operator, pleases see the Official Project Documentation.
Past Versions
Documentation for previous releases can be found at the Crunchy Data Access Portal.
Releases
When a PostgreSQL Operator general availability (GA) release occurs, the container images are distributed on the following platforms in order:
The image rollout can occur over the course of several days.
To stay up-to-date on when releases are made available in the Crunchy Data Developer Portal, please sign up for the Crunchy Data Developer Program Newsletter. You can also join the PGO project community discord
FAQs, License and Terms
For more information regarding PGO, the Postgres Operator project from Crunchy Data, and Crunchy Postgres for Kubernetes, please see the frequently asked questions.
The installation instructions provided in this repo are designed for the use of PGO along with Crunchy Data’s Postgres distribution, Crunchy Postgres, as Crunchy Postgres for Kubernetes. The unmodified use of these installation instructions will result in downloading container images from Crunchy Data repositories - specifically the Crunchy Data Developer Portal. The use of container images downloaded from the Crunchy Data Developer Portal are subject to the Crunchy Data Developer Program terms.
The PGO Postgres Operator project source code is available subject to the Apache 2.0 license with the PGO logo and branding assets covered by our trademark guidelines.
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