With the ETCD CLI, the same can be dynamically updated in the files (euVaccineProph.json and euVaccineCode.json) without any service deployments.

Steps to add the extra EU vaccine configurations

• Go to the specific path where etcd is configured.

• Open the files to add the new vaccine or update the existing vaccine.

• Run the command: vim euVaccineCode.json.

• Run the command:vim euVaccineProph.json.

• Run the command:vim euVaccineManuf.json.

• To reflect the change, run the command: ./updateConfigs.sh. It shows "OK OK OK...."This means that etcd has been updated with the new vaccine list successfully.

• Create the certificate and generate the PDF with the new vaccine.

To add a new vaccine to an EU certificate, a country must identify the EU code to which the vaccine belongs. The coded value sets used in EU vaccination certificates include:

• vp: COVID-19 vaccine or prophylaxis

• mp: COVID-19 vaccine product

• ma: COVID-19 vaccine marketing authorisation holder or manufacturer

Steps to add the extra field in the certificate:

• Go to the specific path where etcd is configured.

• To add the extra field in the template, go to the Manage keys where etcd is configured.

• To add the vaccine code, go to euVaccineCode and click on the Edit key to add the vaccine name and code.

- Example for Covaxin:

{“covaxin”: “Covaxin”}

• Click on Save. A popup will appear as “operation successful.” Click on Close.

• To add the prophylaxis, go to euVaccineProph and click on the Edit key to add the vaccine name and code.

- Example for Covaxin:

{“covaxin”: “J07BX03”}

• Click on Save. A popup will appear as “operation successful.” Click on Close.

• To add the manufacturer, go to euVaccineManuf. Click on the Edit key to add the new manufacturer.

- Example for Covaxin:

{“bharat”: “Bharat-Biotech”}

• Click on Save. A popup will appear as “operation successful.” Click on Close.

• Once the mappings are available in etcd, you can create the certificate and generate the PDF with the new vaccine.