Sealing the Secret Store

You may want to manually seal the Secret Store to protect its contents from an intruder. Sealed Secret Stores cannot be accessed from the web interface. Secret values cannot be retrieved using the Secrets API. Services that depend on values in the Secret Store may fail to deploy.

To seal the Secret Store, complete the following steps to seal a single instance of dcos-secrets. If the cluster URL obtained through dcos config show core.dcos_url points to a load balancer and there is more than one master node in the cluster, then these steps should be issued against each master node instead, and the cluster URL should be changed to the address of individual master nodes.

The intended status of the seal is persisted; after sealing the store, the restart of dcos-secrets will not unseal it. Only the steps depicted in unsealing the store will do so.

Prerequisites:

• DC/OS CLI installed
• Logged into the DC/OS CLI as a superuser via dcos auth login
• GNU Privacy Guard (GPG) installed
• You must follow the steps in Downloading the Root Cert before issuing the curl commands in this section.

1. From a terminal prompt, check the status of the Secret Store via the following command.

   curl --cacert dcos-ca.crt -H "Authorization: token=$(dcos config show core.dcos_acs_token)" $(dcos config show core.dcos_url)/secrets/v1/seal-status/default
   

2. The Secret Store service should return a response similar to this:

   {"sealed":false,"threshold":1,"shares":1,"progress":0}
   

   If the value of "sealed" is true, do not complete the rest of this procedure. If the Secret Store is already sealed, you cannot seal it again.

3. Use the following command to seal the Secret Store.

   curl -X PUT --cacert dcos-ca.crt -H "Authorization: token=$(dcos config show core.dcos_acs_token)" $(dcos config show core.dcos_url)/secrets/v1/seal/default
   

4. Confirm that the Secret Store was sealed with this command.

   curl --cacert dcos-ca.crt -H "Authorization: token=$(dcos config show core.dcos_acs_token)" $(dcos config show core.dcos_url)/secrets/v1/seal-status/default
   

   It should return the following JSON:

   {"sealed":true,"threshold":1,"shares":1,"progress":0}