gaelleiadvize / gke-mongo-backup

Scripts and config to backup mongodb to Google Cloud Storage in GKE

GKE mongo backup

Scripts and config to backup mongodb to Google Cloud Storage in GKE

Contains:

• kubernetes cronJob to execute our docker image with the necesari script and dependencies
• Dockerfile of the image used by de cronJob
• Script with the necesary steps to backup database and upload to GCS

Steps

• Create bucket in Google Cloud Storage to upload backups

• Create Google cloud service account with credentials and access permisions for GCS (Storage Object Creator, Storage Object Viewer): https://cloud.google.com/kubernetes-engine/docs/tutorials/authenticating-to-cloud-platform?hl=es

• Create kubernetes secret in your kubernetes cluster to store Service Account Credentials:

 kubectl create secret generic gcs-key --from-file=key.json

• Build and push docker image to your registry

• Apply cron.yaml to your kubernetes cluster:

  kubectl apply -f cron.yaml
  

Local test:

• Need to save your Google cloud service account credentials json in same path
• Run:

  docker run -ti -v .:/var/mongobackup \
  -e GOOGLE_APPLICATION_CREDENTIALS='/var/mongobackup/key.json' \
  -e MONGO_HOST='<MONGO_HOST>' -e MONGO_USER='<MONGO_USER>' \
  -e MONGO_PASS='<MONGO_PASS>' \
  -e BUCKET_NAME='<BUCKET_NAME>' \
  mongobackup
  

Backup means restore ^^

• full restore

mongorestore  --drop --gzip \
--host <MONGO_HOST> \
-u <MONGO_USER> -p <MONGO_PASS> \
--archive=<PATH_TO_ARCHIVE>.gz

• restore one db only

mongorestore  --nsInclude 'MY_DB_NAME.*' --drop --gzip \
--host <MONGO_HOST> \
-u <MONGO_USER> -p <MONGO_PASS> \
--archive=<PATH_TO_ARCHIVE>.gz