Make proxy configuration optional

[madhawap]

Purpose

As per the current configurations it is mandatory to set a value for http.nonProxyHosts property in order to the server to run on 'change-ip' mode. With this modification, it is made optional where even without this property IoT server can be run on 'change-ip' mode. 'Change-ip' mode is where the server is configured to run on a different IP other than localhost

Goals

This fix will allow bypassing the proxy-related configurations if they were not set on the iot-server.sh file

Approach

With this modification, it is made optional where even without the property "http.nonProxyHosts", IoT server can be run on 'change-ip' mode.

User stories

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Release note

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Documentation

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Training

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Certification

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Marketing

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Automation tests

Can not automate

Security checks

• Followed secure coding standards in http://wso2.com/technical-reports/wso2-secure-engineering-guidelines? yes
• Ran FindSecurityBugs plugin and verified report? yes
• Confirmed that this PR doesn't commit any keys, passwords, tokens, usernames, or other secrets? yes

Samples

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Related PRs

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Migrations (if applicable)

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Test environment

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Learning

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