Update Web Cell Gateway Arguments to support Observability

[nadundesilva]

Purpose

Previously the provided arguments were pointing to Istio mixer for reporting Observability data. This needs to be altered for Cellery Observability to work.

Goals

Allow the user to view Web Cell tracing and other data.

Approach

The argument for specifying the zipkinAddress was changed to point to the SP Worker. The serviceCluster was also updated to be consistent with the other pods.

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

• Unit tests

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• Integration tests

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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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[codecov-io]

Codecov Report

Merging #55 into master will not change coverage. The diff coverage is 100%.

@@           Coverage Diff           @@
##           master      #55   +/-   ##
=======================================
  Coverage   62.62%   62.62%           
=======================================
  Files          26       26           
  Lines        1295     1295           
=======================================
  Hits          811      811           
  Misses        470      470           
  Partials       14       14

Impacted Files	Coverage Δ
pkg/controller/gateway/resources/deployment.go	77.04% <100%> (ø)	:arrow_up:

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