Add used GITHUB_ vars as build args

Author: patrikjuvonen

.github/workflows/image.yml

@@ -72,3 +72,7 @@ jobs:
           build-args: |
             BUILD_DATE=${{ env.BUILD_DATE }}
             VCS_REF=${{ env.VCS_REF }}
+            GITHUB_REF=${{ github.ref }}
+            GITHUB_RUN_ID=${{ github.run_id }}
+            GITHUB_RUN_NUMBER=${{ github.run_number }}
+            GITHUB_RUN_ATTEMPT=${{ github.run_attempt }}

Dockerfile

@@ -27,6 +27,10 @@ ENV NJS_TAG 0.7.9
 
 ARG BUILD_DATE
 ARG VCS_REF
+ARG GITHUB_REF
+ARG GITHUB_RUN_ID
+ARG GITHUB_RUN_NUMBER
+ARG GITHUB_RUN_ATTEMPT
 
 RUN set -x; GPG_KEYS=13C82A63B603576156E30A4EA0EA981B66B0D967 \
   && CONFIG="\

README.md

@@ -46,7 +46,7 @@ Images for this are available on
 Semantic versioning is enabled since [519e20d7f65d53b976cf7d13e364dca326e988b7](https://github.com/patrikjuvonen/docker-nginx-http3/commit/519e20d7f65d53b976cf7d13e364dca326e988b7),
 the first semantic version being 2.0.0. You can use a semantical version using tags
 such as `:2.0.1`, `:2.0`, `:2`. I also provide a `latest` tag which is the latest
-image.
+release, and `master` which is the latest image from master branch.
 
 This is a base image like the default _nginx_ image. It is meant to be used as a
 drop-in replacement for the nginx base image.