https://github.com/Netflix-Skunkworks/go-jira#authentication
You will need to create $HOME/.jira.d/config.yml, with the following details:
user: <jira.username>
login: <username@tiny.cloud>
An API key is required, which you can get from https://id.atlassian.com/manage/api-tokens.
After obtaining it, use it by adding the JIRA_API_TOKEN environment variable to your shell.