Atlassian do not support the addons you need to do this in full, and it doesn't look like this is on the roadmap to add to Cloud any time soon. So the best you'll be able to do is code for Teamcity so that it can use JIRA's REST interface to read and update JIRA.
Hey Atlassian community, I am a PM on the Bitbucket Cloud team and I am excited to share that we just released an improvement to the Jira Software and Bitbucket Cloud integration. With the newly im...
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