Workload: How can cert be updated or changed after appliance registration?

[#1]

Environment

Workload Appliance

Objective

How can a certificate be updated, changed or replaced after appliance registration?

Resolution

1. Navigate to a folder where we want to generate keystore and truststore from the ca- signed certificate.
2. Create keystore from ca signed certificate

   1. openssl pkcs12 -export -in <Path_to_cert> -inkey <Path_to_key> -name 'cwp-appliance' -out gateway-keystore.p12

      • Do not change the value of argument -name. This value must remain 'cwp-appliance'.
      • <path_to_cert> is the path to CA signed certificate.  <path_to_key> is the path to private key
   2.  Set password in prompt (Enter Export Password). This will be the keystore password
   3. Eg:

      openssl pkcs12 -export -in /Users/<username>/Downloads/sbu_vmware_com_140668505/sbu_vmware_com.crt -inkey /Users/<username>/Downloads/sbu_vmware_com.key -name 'cwp-appliance' -out gateway-keystore.p12

3. Create truststore

   1. keytool -importcert -storetype PKCS12 -keystore gateway-truststore.p12 -storepass <keystore-password> -alias cwp-appliance -file <Path_to_cert> -noprompt

   2. eg:

      keytool -importcert -storetype PKCS12 -keystore gateway-truststore.p12 -storepass changeit -alias cwp-appliance -file /Users/Downloads/sbu_vmware_com_140668505/sbu_vmware_com.crt -noprompt

4. From current folder move these certificates to appliance

   1. scp <keystore-file-name> <truststore-file-name> admin@10.192.39.208:/home/admin

   2. Eg :

      scp gateway-keystore.p12 gateway-truststore.p12 admin@<APPLIANCE_IP>:/home/admin

   3. (Provide admin password on prompt)
5. SSH to your appliance

   1. ssh admin@<APPLIANCE_IP>

6. Navigate to folder /opt/vmware/cwp/appliance-gateway/ssl

   1. cd /opt/vmware/cwp/appliance-gateway/ssl

7. Create a backup of existing certificates

   1. sudo mv gateway-truststore.p12 gateway-truststore.p12.bkp

   2. sudo mv gateway-keystore.p12 gateway-keystore.p12.bkp

8. Copy new certificates from the /home/admin folder to current folder

   1. sudo mv /home/admin/gateway-truststore.p12 .

   2. sudo mv /home/admin/gateway-keystore.p12 .

9. Provide correct ownership to the certificates

   1. sudo chown root:cwp gateway-keystore.p12

   2. sudo chown root:cwp gateway-truststore.p12

10. navigate to folder /opt/vmware/cwp/appliance-gateway/config

    1. cd /opt/vmware/cwp/appliance-gateway/config

11. Create a backup of application.yml

    1. sudo cp application.yml application.yml.bkp

12. Change password details in application.yml

    1. sudo vi application.yml

       • This will open application.yml file
    2. Press (Esc+ I) to enable insert and change key-store-password and trust-store-password to the password mentioned while creating keystore and truststore (in above steps)
    3. Save changes (Press Esc + and then type wq) .
    4. run command (cat application.yml) to validate details
    5. Output (application.yml file) should be as given below :

server:
  ssl:
    key-store-password: xxxxxx
    trust-store-password: xxxxx

 

1. Restart the gateway service:

   1. sudo systemctl restart cwp-appliance-gateway.service

2. Login into the appliance via ui

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