hostname setting.

[petersilva]

Found some deployed configurations where hostname setting is a list. I think the problem is that the hostname setting processing is completely absent from sr3 and it just uses the system defined one. In v2 there are overrides, and those overrides are important because the hostname isn't always good in a cluster... so having overrides is helpful.

[petersilva]

To reproduce the issue:

fractal% sr3 add subscribe/dd_amis.conf
add: 2024-03-11 13:15:34,407 2165569 [INFO] sarracenia.sr add copying: /home/peter/Sarracenia/sr3/sarracenia/examples/subscribe/dd_amis.conf to /home/peter/.config/sr3/subscribe/dd_amis.conf 

fractal% sr3 edit subscribe/dd_amis.conf
# add a line: hostname hoho
# Add ${HOSTNAME} to the "directory" option.
# save it.
missing state for subscribe/dd_amis

fractal% sr3 show subscribe/dd_amis |& grep -i hostname
 'hostname': ['fractal', 'hoho'],
fractal% 

[petersilva]

analysis:

• in sarracenia/config.py there is a single setting of self.hostname to result of getfqdn()... there is no provision for overriding it.
• hostname should be declared as a string option, that might be enough to fix it.
• it does seem to be...