Conditionally publish to docker hub.

[mshima]

Related to #15881

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[pascalgrimaud]

@mshima : thanks for your work here. Do I need to add some secret to the project ?

[mshima]

@pascalgrimaud yes, DOCKERHUB_USERNAME and DOCKERHUB_TOKEN.

[DanielFran]

@pascalgrimaud can you create the variables to merge this PR?

[mshima]

The step is conditional on the variable.
No need to create now.

[DanielFran]

Yes, I saw it. Just to be ready to create docker images...

[pascalgrimaud]

ok I'm looking into it

[vishal423]

@pascalgrimaud , Can you please also make DOCKERHUB_USERNAME and DOCKERHUB_TOKEN secrets as organizational secrets available to the svelte blueprint project?

[pascalgrimaud]

Ok, will do it tomorrow.
Ping me if I forget :-)

[vishal423]

@pascalgrimaud ping

[pascalgrimaud]

Thanks @vishal423 !
Just done for this project: https://github.com/jhipster/generator-jhipster-svelte

[vishal423]

Thanks @pascalgrimaud