A Docker image for performing PostgreSQL backups to Google Cloud Storage.
docker run \
-e POSTGRES_HOST=<db host> \
-e POSTGRES_DB=<your db name> \
-e POSTGRES_USER=<your db username> \
-e POSTGRES_PASSWORD=<your secret> \
-e GCS_KEY_FILE_PATH=<path to GC service account key file> \
-e GCS_BUCKET=<GC bucket name>
dazlabteam/postgres-gc-backup
Edit your Docker Compose file, add new backup service:
db:
image: postgres:14.2
ports:
- "5432:5432"
environment:
POSTGRES_USER: <your pg username>
POSTGRES_PASSWORD: <your secret>
POSTGRES_DB: <your db name>
...
backup:
image: dazlabteam/postgres-gc-backup
environment:
POSTGRES_HOST: db
POSTGRES_DB: demo
POSTGRES_USER: root
POSTGRES_PASSWORD: secret
GCS_KEY_FILE_PATH: <path to GC service account key file>
GCS_BUCKET: <GC bucket name>
Then run
docker-compose -f <path to docker compose yaml> run --rm backup
or by specifying env variables via the command line:
docker-compose -f <path to docker compose yaml> run --rm \
-e POSTGRES_HOST=<db host> \
-e POSTGRES_DB=<your db name> \
-e POSTGRES_USER=<your db username> \
-e POSTGRES_PASSWORD=<your secret> \
-e GCS_KEY_FILE_PATH=<path to GC service account key file> \
-e GCS_BUCKET=<GC bucket name> \
backup
Create Kubernetes secret containing all the environment variables:
kubectl create secret generic POSTGRES-gc-backup \
--from-literal=POSTGRES_HOST=<db host> \
--from-literal=POSTGRES_DB=<your db name> \
--from-literal=POSTGRES_USER=<your db username> \
--from-literal=POSTGRES_PASSWORD=<your secret> \
--from-literal=GCS_KEY_FILE_PATH=<path to GC service account key file> \
--from-literal=GCS_BUCKET=<GC bucket name>
then create CronJob using the cronjob spec file from this repo:
kubectl apply -f postgres-gc-backup.cronjob.yaml
By default, it will run every day at 00:00. To change this, edit cronjob and specify other schedule:
kubectl edit cronjob postgres-gc-backup
MIT