0.9.16 docker image is missing

[nan-wang]

Describe the bug

https://hub.docker.com/repository/docker/jinaai/jina

0.9.15 is published on docker hub.

Describe how you solve it

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Environment

Screenshots

[hanxiao]

Here are the bug analyze steps, which I hope the team can pick up and have a better issue report stays not only on the surface.

1. We use github action to build image, so the problem is in Github action tag.yml
2. Go to Github action log, find that all images building failed, because of gcc not found when building lz4
3. Given that 0.9.5 and 0.9.6 releases are just 1 hour in-between and no changes on tag.yml, it must be something else.
4. Ask oneself: why 0.9.5 does not need gcc where 0.9.6 suddenly needs gcc? why did it only happen for lz4? Speaking of complexity and c-related package, I mean isn't numpy "needs" gcc even more?
5. Experience told us: though rare, it is not the first time that we had symptom for (4), something is suddenly broken at certain time.
6. Go check lz4 release history, ha! they publish a new version on Jan.16 the time we build the image.

So that's it! By the time they publish it, wheels were not ready (what is a wheel? plz google). Therefore we have to build by ourselves from scratch using gcc, as all latest versions do not include build-essential for the sake of image size, the building failed.

Solution? Bad timing, just wait. Go check https://pypi.org/simple/lz4/ and realize all wheels are ready now

Todo @jina-ai/engineering

• Lesson learned: I always very conservative on introducing dependency into Jina for a reason. Lean dependency = stable & robust. Example? here is one.
• add a new action that publishes image manually after something fails again like this. Where to learn, how about start from copy-paste related section in tag.yml?
• Learn what is wheel?
• Learn how to analyze the bug like this.