.gitlab-ci.yml: publish RAUC bundle to HawkBit

The HawkBit instance needs to be configured externally and reachable from the runner performing the publishing step. The location of the instance must be provided through environment variables compatible with hawkbitctl, namely HAWKBIT_{URL,USERNAME,PASSWORD}. HAWKBIT_TENANT is optional and untested.

The bundle is added as an artifact to a new software module named after the bundle, using bundle timestamp as the version. The module is then placed in a distribution named after the image (not the bundle), with the exact same version.

This has been tested on my fork: https://gitlab.eclipse.org/zyga/oniro/-/jobs/20276

I've force pushed to get that version in here:

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• cf3c6e0c - .oniro-ci: document usage of CI_ONIRO_JOB_ARTIFACTS
• 1a3fd2fd - .oniro-ci: preserve all properties of copied artifacts
• 5da48bf4 - .oniro-ci: allow symbolic link artifacts
• ee052538 - .gitlab-ci.yml: use explicit dependency on pi4 bundle build job
• 4916112b - .gitlab-ci.yml: publish RAUC bundle to HawkBit

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mentioned in issue #476 (closed)

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• 87b9c539 - .gitlab-ci.yml: publish RAUC bundle to HawkBit

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• 07607ea8 - .gitlab-ci.yml: publish RAUC bundle to HawkBit

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• e27cef10 - .gitlab-ci.yml: publish RAUC bundle to HawkBit

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You can see a passing pipeline that I've tested earlier in my local merge request: https://gitlab.eclipse.org/zyga/oniro/-/jobs/20940

approved this merge request

added 4 commits

• 0aed8797 - .gitlab-ci.yml: build and publish bundles for SECO B68
• 7848d966 - .oniro-ci: move .publish-rauc-bundle-to-hawkbit to build-generic
• 45827892 - .oniro-ci: run HawkBit publishing job on tag pipelines
• ed22e474 - docs: document hawkbit publishing job

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approved this merge request

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• b3a72b22 - docs: clarify dependencies of the publishing job

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enabled an automatic merge when the pipeline for b3a72b22 succeeds

aborted the automatic merge because source branch was updated

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• ed4f3d7d - docs: document HawkBit publishing job

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I've force pushed to squash docs changes and fix incorrect syntax in the docs.

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• 21e4e9e7 - docs: document HawkBit publishing job

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• 17857e5d - docs: document HawkBit publishing job

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merged