restore-backup.sh

#!/bin/bash

# Simple demonstration of using the MongoDB Atlas API
# to download a backup.

if [ "$#" -ne 3 ]
  then
    echo "restore-backup.sh - simple example to download a backup from a MongoDB Atlas cluster"
    echo "Usage: ./restore-backup.sh <atlasuser:atlas-apikey> <group-id> <cluster-name>"
    exit 1
fi

USERNAME=$(echo ${1} | cut -d':' -f1)
APIKEY=$(echo ${1} | cut -d':' -f2)
GROUP_ID=${2}
CLUSTER_NAME=${3}

echo "Detected USERNAME=${USERNAME}, APIKEY=${APIKEY}"
echo "         GROUP_ID=${GROUP_ID}, CLUSTER_NAME=${CLUSTER_NAME}"

TEMPDIR=$(mktemp -d)
echo "Working in ${TEMPDIR}"

# Find the latest snapshot, it's the first one
SNAPSHOTS="${TEMPDIR}/snapshots.json"
curl --user "${USERNAME}:${APIKEY}" --output ${SNAPSHOTS} --digest --silent --header "Accept: application/json" --header "Content-Type: application/json" --request GET "https://cloud.mongodb.com/api/atlas/v1.0/groups/${GROUP_ID}/clusters/${CLUSTER_NAME}/snapshots"

echo "SNAPSHOTS=${SNAPSHOTS}"
cat ${SNAPSHOTS}

SNAPSHOT_ID=$(cat ${SNAPSHOTS} | jq -r '.results[0].id')

echo "Found SNAPSHOT=${SNAPSHOT_ID}"

# Create restore jos
RESTORE_JOB_REQUEST=$(cat <<RESTORE_JOB_JSON
{
  "delivery" : {
  "expirationHours" : "1",
  "maxDownloads" : "1",
  "methodName" : "HTTP"
   },
  "snapshotId" : "${SNAPSHOT_ID}"
}
RESTORE_JOB_JSON
)

echo "Submitting restore job request to cluster ${CLUSTER_NAME}\n${RESTORE_JOB_REQUEST}"

RESTORE_JOB_RESULT=${TEMPDIR}/restore-job-submit-result.json 

curl --user "${USERNAME}:${APIKEY}" --digest --header "Accept: application/json" --silent --header "Content-Type: application/json" --output ${RESTORE_JOB_RESULT} --request POST "https://cloud.mongodb.com/api/atlas/v1.0/groups/${GROUP_ID}/clusters/${CLUSTER_NAME}/restoreJobs" --data "${RESTORE_JOB_REQUEST}"

echo "Submitted new restore job. Result:"
cat ${RESTORE_JOB_RESULT}

RESTORE_JOB_ID=$(cat ${RESTORE_JOB_RESULT} | jq -r '.results[0].id')

echo "Checking status for restore job id: ${RESTORE_JOB_ID}"

# Poll for restore job to complete
STATUS="Not started"

while :
do
  RESTORE_JOB_STATUS=${TEMPDIR}/restore-job-status.$(date +"%d-%m-%Y-%H-%M-%s").json

  curl --user "${USERNAME}:${APIKEY}" --digest --header "Accept: application/json" --silent --header "Content-Type: application/json" --output ${RESTORE_JOB_STATUS} --request GET "https://cloud.mongodb.com/api/atlas/v1.0/groups/${GROUP_ID}/clusters/${CLUSTER_NAME}/restoreJobs/${RESTORE_JOB_ID}"

  echo "Restore job status: "
  cat ${RESTORE_JOB_STATUS}

  STATUS=$(cat ${RESTORE_JOB_STATUS} | jq -r '.statusName')
  echo "Found STATUS=${STATUS}"
  if [ "${STATUS}" == "FINISHED" ]; then
    echo "Restore job complete"
    DOWNLOAD_URL=$(cat ${RESTORE_JOB_STATUS} | jq -r '.delivery.url')
    echo "Found download url: ${DOWNLOAD_URL}"
    break 
  fi
done

# Download backup
curl -OL ${DOWNLOAD_URL}