comment dockerfile

wacs-gitea/Dockerfile

@@ -17,12 +17,20 @@ RUN /merge-locale/localeMerger
 FROM gitea/gitea:${GITEA_VERSION}-rootless
 
 ENV GITEA_CUSTOM=/custom
+# This ENV is functional, but it is here as an example of what the value should be at runtime
 ENV READER_BASE_LINK=https://read-dev.bibleineverylanguage.org/
 
+# COPY's need permissions set for rootless
 COPY --chown=git:git --from=LOCALE_BUILDER /output-locale/*.ini /custom/options/locale/
 COPY --chown=git:git ./custom/templates /custom/templates
-COPY ./custom/public /custom/public
+COPY --chown=git:git ./custom/public /custom/public
 
+# dumb-init for clean startup and shutdown as per the parent image.
+# Startup is done this way to still use dumb-init like the partent image; this is how dumb-init suggests to do it.
 ENTRYPOINT ["/usr/bin/dumb-init", "--"]
 
+# Cat feeds the extra_tabs.tmpl file into envsubst
+# envsubst replaces the env vars in the file with the values from the environment and writes out a temp file
+# Temp file is then moved to the real location
+# Gitea entrypoint starts gitea
 CMD ["sh", "-c", "cat /custom/templates/custom/extra_tabs.tmpl | envsubst > /tmp/extra_tabs.tmpl && mv /tmp/extra_tabs.tmpl /custom/templates/custom/extra_tabs.tmpl && /usr/local/bin/docker-entrypoint.sh"]