Official Golang images are now only available for 3.18 and 3.17;
3.18 doesn't look to play well with gotestsum, so sticking to
an older version.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
This allows us to pin to a specific version of Alpine, in case the
golang:alpine image switches to a newer version, which may at times
be incompatible, e.g. see https://github.com/moby/moby/issues/44570
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Now that HEREDOC is included in the stable Dockerfile syntax, we can
use the latest stable syntax for all Dockerfiles.
The recommendation for the stable syntax is to use `:1` (which is
equivalent to "latest" stable syntax.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Sebastiaan van Stijn
CrazyMax