China Wraps Up 1-Year Mock Moon Mission to Lunar Palace 1 (2018)

In the context of recent news about a planned Russia-China moon base:

https://www.theguardian.com/science/2021/jun/25/russia-china...

For more background on controlled ecological life support systems, check out what the Soviets achieved with BIOS-3 in the 1970s:

https://en.wikipedia.org/wiki/BIOS-3