From August 1, 2021, anyone (over 17 years of age) wishing to go to a restaurant, a café or a bar, will be required to carry a "health pass" (including on terraces).

One of the following three pieces of evidence may constitute a "health pass":

Covid-19 vaccination passport (or certificate of vaccination)
the result of a negative RT-PCR or antigenic test less than 48 hours old
the result of a positive RT-PCR or antigenic test attesting to the recovery of Covid-19, at least 11 days old and less than 6 months old

Find more information at https://www.gouvernement.fr/en/coronavirus-covid-19