Dynamic SSL Certificate Installation

If you have a backend with a self-signed certificate or a certificate which is not signed by a Certification Authority (CA), you generally would need to import the certificate to the client-truststore and restart the server, which is cumbersome. However, if you enable dynamic SSL certificate installation on WSO2 API Manager, you can simply upload the backend certificate via the API Publisher while creating or editing your API without having to manually upload the certificate for the endpoint. Follow the steps below to add a new certificate to any endpoint. Note that this feature only supports HTTP/REST and HTTP/SOAP endpoints.

Prerequisites

If you are an existing user, follow the instructions given below.
1. Run the scripts inside the <API-M_HOME>/dbscripts/apimgt directory, according to your preferred database. For instructions on configuring databases, see Set up the database. Verify that the table AM_CERTIFICATE_METADATA has been created in your database.
2. The configurations for the PassThroughHTTPSSLSender parameter is available by default in the <API-M_HOME>/repository/conf/axis2/axis2.xml file as shown below.
```
<transportSender name="https" class="org.apache.synapse.transport.passthru.PassThroughHttpSSLSender">
	...
      
      
      
      
      <parameter name="dynamicSSLProfilesConfig">
              <filePath>repository/resources/security/sslprofiles.xml</filePath>
              <fileReadInterval>600000</fileReadInterval>
      </parameter>
</transportSender>
```
  The default time to apply the certificate is 10 minutes. You can configure this by changing the <fileReadInterval> parameter. Note that the time is given in milliseconds.
3. If you use a different Trust Store/ Keystore configuration in the axis2.xml or carbon.xml files ,modify the KeyStore and TrustStore location in <API-M_HOME>/repository/resources/security/sslprofiles.xml file accordingly. The sslprofiles.xml file is configured with the existing client-truststore.jks

This feature currently supports only the following formats for keystores and certificates.

Keystore : .jks
Certificate : .crt

If you need to use a certificate in any other format, you can convert it using a standard tool before uploading.

After configuring, the certificate will be added to the Gateway nodes which are defined under the Environments in api-manager.xml. In a clustering setup, as gateway configurations are identical, sync the <API-M_HOME>/repository/resources/security/sslprofiles.xml and <API-M_HOME>/repository/resources/security/client-truststore.jks among the gateway nodes. After the configured interval, the synapse transport will be reloaded in all the gateway nodes.

Adding a certificate

Log in to the API Publisher. Create a new API or edit an existing API.
Go to the Implement tab. Click Manage Certificates and click Add New Certificate
Enter the following information and click Upload.
Name Description
Alias Enter a name for your certificate.
Endpoint Select an endpoint from the dropdown list
Certificate Enter the location of your certificate file or click Browse to select through the UI
The uploaded certificate aliases will be displayed.
You can repeat from step 2 to add a certificate to the sandbox endpoint.

You add only one certificate per endpoint. Make sure that your certificates have not expired.

Deleting a certificate

To delete a certificate, click the icon adjacent to the certificate, as shown below.

Name	Description
Alias	Enter a name for your certificate.
Endpoint	Select an endpoint from the dropdown list
Certificate	Enter the location of your certificate file or click Browse to select through the UI