Prerequisites
The following table gives the prerequisite information that has to be complied before switching from HTTP to HTTPS for Apache Tomcat:

S.No	Dependency	Comments
1	JAVA	This has to be installed previously.
2	Apache Tomcat (8+)	This has to be installed previously.
3	Setting up the provided environment variables for java

Perform the following steps in order to switch from HTTP to HTTPS for Apache Tomcat:

Step - 1: Creating a keystore file

1. Open the command prompt and enter the following command:

keytool -genkey -alias tomcat -keyalg RSA -keystore canvascertificate.cert

2. Enter the keystore and key password details for generating the keystore file. Here, the keystore is saved as canvascertificate.cert

Step – 2: Configuring Apache Tomcat for using keystore file — SSL config

File Location: <Tomcat-Installed-Folder>\conf \ server.xml

1. Comment the following command in order to disable the default HTTP configuration:

<Connector executor="tomcatThreadPool"
               port="8080" protocol="HTTP/1.1"
               connectionTimeout="20000"
               redirectPort="8443" />

2. Add the following command to enable the HTTPS configuration below the commented http configuration command.

<Connector SSLEnabled="true" acceptCount="100" clientAuth="false"
    disableUploadTimeout="true" enableLookups="false" maxThreads="150"
    port="9129" keystoreFile="...\canvascertificate.cert" keystorePass=${env.keystorePass} #Make sure environmental variable is set.
    protocol="org.apache.coyote.http11.Http11NioProtocol" scheme="https"
    secure="true" sslProtocol="TLS" />

Make sure that you mention the Keystore path in keystoreFile field and mention the Keystore password in keystorePass field.
Make sure that you mention the port that should be exposed for HTTPS. Here, the port number is given as 9129.

Step – 3: Accessing the Application
Start tomcat service and try to access https://localhost:9129. You will see Tomcat's local home page.

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