Enable FF_NETWORK_PER_BUILD=true for all vendored gems
What does this MR do and why?
In #460842 (closed), we discovered
that the legacy mechanism for linking Docker containers via the
--link argument assigns both IPv4 and IPv6 addresses. Since the
experimental IPv6 option is not enabled in Docker, talking to
network services incurs about a 1-second delay as the network
falls back to IPv4.
To avoid this, we should switch on FF_NETWORK_PER_BUILD=true,
which is the default setting in our private runners. This
ensures only IPv4 addresses are used.
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| Before | After |
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How to set up and validate locally
I did a quick test:
- Removed
FF_NETWORK_PER_BUILDfrom the CI/CD variables. - Hit retry on a build: https://gitlab.com/gitlab-org/gitlab/-/jobs/6812731585
- Validated this has
FF_NETWORK_PER_BUILD=true.