PostgreSQL is a powerful, open source object-relational database system with over 30 years of active development that has earned it a strong reputation for reliability, feature robustness, and performance.

For other Clear Linux* OS based container images, see: https://hub.docker.com/u/clearlinux

Why use a clearlinux based image?

Clear Linux* OS is an open source, rolling release Linux distribution optimized for performance and security, from the Cloud to the Edge, designed for customization, and manageability.

Clear Linux* OS based container images use:

Optimized libraries that are compiled with latest compiler versions and flags.
Software packages that follow upstream source closely and update frequently.
An aggressive security model and best practices for CVE patching.
A multi-staged build approach to keep a reduced container image size.
The same container syntax as the official images to make getting started easy.

To learn more about Clear Linux* OS, visit: https://clearlinux.org.

Deployment:

Deploy with Docker

The easiest way to get started with this image is by simply pulling it from Docker Hub.

*Note: This container uses the same syntax as the official postgres image.

Pull the image from Docker Hub:
```
docker pull clearlinux/postgres
```

Start a container using the examples below:

docker run -p 5432:5432 -e POSTGRES_PASSWORD=secret -d clearlinux/postgres

Deploy with Kubernetes

This image can also be deployed on a Kubernetes cluster, such as minikube.The following example YAML files are provided in the repository as reference for Kubernetes deployment:

postgres-deployment.yaml: example using default configuration with secret to create a basic postgres service.
postgres-deployment-conf.yaml: example using your own custom configuration with secret to create postgres service.

Steps to deploy Postgres on a Kubernetes cluster:

Create secret for postgres service.

kubectl create secret generic postgres-config \
--from-literal=POSTGRES_DB=<your-postgres-db> \
--from-literal=POSTGRES_PASSWORD=<your-postgres-pwd> \
--from-literal=POSTGRES_USER=<your-postgres-user>

If you want to deploy postgres-deployment.yaml
```
kubectl create -f postgres-deployment.yaml
```
Or if you want to deploy postgres-deployment-conf.yaml
```
kubectl create -f postgres-deployment-conf.yaml
```
Install PostgreSQL bundle and connect to the service, where 30001 is the port number defined in your service.
```
swupd bundle-add postgresql
psql -h<nodeIP> -U<your-postgres-user> --password -p30001 <your-postgres-db>
```

Build and modify:

The Dockerfiles for all Clear Linux* OS based container images are available at https://github.com/clearlinux/dockerfiles. These can be used to build and modify the container images.

Clone the clearlinux/dockerfiles repository.

git clone https://github.com/clearlinux/dockerfiles.git

Change to the directory of the application:
```
cd postgres/
```
Build the container image:
```
docker build -t clearlinux/postgres .
```
Refer to the Docker documentation for default build arguments. Additionally:
- swupd_args - specifies arguments to pass to the Clear Linux* OS software manager. See the swupd man pages for more information.

Licenses

All licenses for the Clear Linux* Project and distributed software can be found at https://clearlinux.org/terms-and-policies

README.md

Clear Linux* OS postgres container image