nginxinc
Use the smaller package envsubst
In the Dockerfile, gettext is installed, then removed just to get the envsubst binary. In the APK repos there is an envsubst package with just the 1 binary - could this be considered to neaten up the docker build?
There is no envsubst package in the 3.14 or 3.15 version of Alpine yet. Maybe if/when it hits a newer release we can take a look at utilizing it instead of doing a gettext hack. Also, I'm not sure it's 100% compatible with GNU gettext version though and the project repo doesnt inspire much confidence: https://github.com/kaniini/envsubst
And another point is that I would like to keep both debian and alpine images as close as possible, and having different implementations of envsubst might introduce hard to diagnose issues.
