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Update the MongoDB Version of a Deployment

On this page

  • Consideration
  • Variables for API Resources to Update MongoDB Version
  • Prerequisite
  • Procedure

This tutorial describes how to use the API to migrate a MongoDB deployment to a new version of MongoDB. These steps assume you have an existing deployment that uses a 4.0.6 version of MongoDB, as would be the case if you used the tutorial to Deploy a Cluster through the API.

Note

Groups and projects are synonymous terms. Your {PROJECT-ID} is the same as your project id. For existing groups, your group/project id remains the same. This page uses the more familiar term group when referring to descriptions. The endpoint remains as stated in the document.

The API supports most MongoDB settings and parameters for MongoDB versions 2.6 and later. To learn more, see MongoDB Settings and Automation Support.

The API resources use one or more of these variables. Replace these variables with your desired values before calling these API resources.

Name
Type
Description
PUBLIC-KEY
string
Your public API Key for your API credentials.
PRIVATE-KEY
string
Your private API Key for your API credentials.
cloud.mongodb.com
string
URL of your Cloud Manager instance.
GROUP-ID
string
Unique identifier of your project from your project settings.
CLUSTER-ID
string
Unique identifier of your cluster.

You must have credentials to access Cloud Manager as a user with the Project Owner role for the Cloud Manager project in which the deployment exists.

1
  1. Use the automationConfig resource to retrieve the configuration. Issue the following command, replacing the placeholders with the Variables for API Resources to Update MongoDB Version.

    curl --user "{PUBLIC-KEY}:{PRIVATE-KEY}" --digest \
    --request GET "https://cloud.mongodb.com/api/public/v1.0/groups/{PROJECT-ID}/automationConfig?pretty=true" \
    --output currentAutomationConfig.json
  2. Validate the downloaded Automation Configuration file.

    Compare the version field of the currentAutomationConfig.json with that of the Automation Configuration backup file, mms-cluster-config-backup.json. The version value is the last element in both JSON documents. You can find this file on any host running the MongoDB Agent at:

    • Linux and macOS: /var/lib/mongodb-mms-automation/mms-cluster-config-backup.json

    • Windows: %SystemDrive%\MMSAutomation\versions\mms-cluster-config-backup.json

    If the version values match, you are working with the current version of the Automation Configuration file.

2

As you edit the configuration document in the next steps, refer to the description of an automation configuration for detailed descriptions of settings.

3

Update every processes.version field to specify 4.2.1:

"version": "4.2.1"
4

Use the automationConfig resource to send the updated automation configuration.

Issue the following command with path to the updated configuration document and replace the placeholders with the Variables for API Resources to Update MongoDB Version.

curl --user "{PUBLIC-KEY}:{PRIVATE-KEY}" --digest \
--header "Content-Type: application/json"
--request PUT "https://cloud.mongodb.com/api/public/v1.0/groups/{PROJECT-ID}/automationConfig?pretty=true" \
--data @currentAutomationConfig.json

Upon successful update of the configuration, the API returns the HTTP 200 OK status code to indicate the request has succeeded.

5

Retrieve the automation configuration from Cloud Manager and confirm it contains the changes. To retrieve the configuration, issue the following command, replacing the placeholders with the Variables for API Resources to Update MongoDB Version.

curl --user "{PUBLIC-KEY}:{PRIVATE-KEY}" --digest \
--request GET "https://cloud.mongodb.com/api/public/v1.0/groups/{PROJECT-ID}/automationConfig?pretty=true"
6

Use the automationStatus resource to retrieve the deployment status. Issue the following command, replacing the placeholders with the Variables for API Resources to Update MongoDB Version.

curl --user "{PUBLIC-KEY}:{PRIVATE-KEY}" --digest \
--request GET "https://cloud.mongodb.com/api/public/v1.0/groups/{PROJECT-ID}/automationStatus?pretty=true"

Confirm that the values of all the lastGoalVersionAchieved fields in the processes array match the goalVersion field. To learn about deployment status, see Get Automation Status of Latest Plan.

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