added Gitea action to build nginx image

nginx/Dockerfile

@@ -1,6 +1,6 @@
-ARG VERSION
 FROM alpine:latest
-
+ARG VERSION
+ENV NGINX_VERSION=${VERSION}
 RUN GPG_KEYS=D6786CE303D9A9022998DC6CC8464D549AF75C0A \
 	&& CONFIG="\
 		--prefix=/etc/nginx \
@@ -85,8 +85,8 @@ RUN GPG_KEYS=D6786CE303D9A9022998DC6CC8464D549AF75C0A \
 		zlib \
 		zlib-dev \
 		mercurial \
-	&& curl -fSL https://nginx.org/download/nginx-${VERSION}.tar.gz -o nginx-${VERSION}.tar.gz \
+	&& curl -fSL https://nginx.org/download/nginx-${NGINX_VERSION}.tar.gz -o nginx-${NGINX_VERSION}.tar.gz \
-	&& curl -fSL https://nginx.org/download/nginx-${VERSION}.tar.gz.asc  -o nginx-${VERSION}.tar.gz.asc \
+	&& curl -fSL https://nginx.org/download/nginx-${NGINX_VERSION}.tar.gz.asc  -o nginx-${NGINX_VERSION}.tar.gz.asc \
 	&& export GNUPGHOME="$(mktemp -d)" \
 	&& found=''; \
 	for server in \
@@ -99,11 +99,11 @@ RUN GPG_KEYS=D6786CE303D9A9022998DC6CC8464D549AF75C0A \
 		gpg --keyserver "$server" --keyserver-options timeout=10 --recv-keys "$GPG_KEYS" && found=yes && break; \
 	done; \
 	test -z "$found" && echo >&2 "error: failed to fetch GPG key $GPG_KEYS" && exit 1; \
-	gpg --batch --verify nginx-${VERSION}.tar.gz.asc nginx-${VERSION}.tar.gz \
+	gpg --batch --verify nginx-${NGINX_VERSION}.tar.gz.asc nginx-${NGINX_VERSION}.tar.gz \
 	&& mkdir -p /usr/src \
-	&& tar -zxC /usr/src -f nginx-${VERSION}.tar.gz \
+	&& tar -zxC /usr/src -f nginx-${NGINX_VERSION}.tar.gz \
-	&& rm nginx-${VERSION}.tar.gz \
+	&& rm nginx-${NGINX_VERSION}.tar.gz \
-	&& rm -rf "$GNUPGHOME" nginx-${VERSION}.tar.gz.asc \
+	&& rm -rf "$GNUPGHOME" nginx-${NGINX_VERSION}.tar.gz.asc \
 	&& git clone --depth=1 --recurse-submodules https://github.com/google/ngx_brotli /usr/src/ngx_brotli \
 	&& git clone --depth=1 https://github.com/openresty/headers-more-nginx-module /usr/src/ngx_headers_more \
 	&& hg clone http://hg.nginx.org/njs /usr/src/njs \
@@ -115,7 +115,7 @@ RUN GPG_KEYS=D6786CE303D9A9022998DC6CC8464D549AF75C0A \
 		&& cmake -B/usr/src/boringssl/build -S/usr/src/boringssl -DCMAKE_BUILD_TYPE=RelWithDebInfo \
 		&& make -C/usr/src/boringssl/build -j$(getconf _NPROCESSORS_ONLN) \
 	   ) \
-	&& cd /usr/src/nginx-${VERSION} \
+	&& cd /usr/src/nginx-${NGINX_VERSION} \
 	&& curl -fSL https://raw.githubusercontent.com/nginx-modules/ngx_http_tls_dyn_size/master/nginx__dynamic_tls_records_1.25.1%2B.patch -o dynamic_tls_records.patch \
 	&& patch -p1 < dynamic_tls_records.patch \
 	&& ./configure $CONFIG --with-debug --with-cc-opt="-I/usr/src/boringssl/include" --with-ld-opt="-L/usr/src/boringssl/build/ssl -L/usr/src/boringssl/build/crypto" \
@@ -143,7 +143,7 @@ RUN GPG_KEYS=D6786CE303D9A9022998DC6CC8464D549AF75C0A \
 	&& ln -s ../../usr/lib/nginx/modules /etc/nginx/modules \
 	&& strip /usr/sbin/nginx* \
 	&& strip /usr/lib/nginx/modules/*.so \
-	&& rm -rf /usr/src/nginx-${VERSION} \
+	&& rm -rf /usr/src/nginx-${NGINX_VERSION} \
 	&& rm -rf /usr/src/boringssl /usr/src/ngx_* /usr/src/njs \
 	\
 	# Bring in gettext so we can get `envsubst`, then throw
@@ -177,7 +177,7 @@ RUN APK_ARCH="$(cat /etc/apk/arch)"
 LABEL description="NGINX Docker built top of rolling release BoringSSL" \
       maintainer="Denis Denisov <denji0k@gmail.com>" \
       openssl="BoringSSL" \
-      nginx="nginx ${VERSION}" \
+      nginx="nginx ${NGINX_VERSION}" \
       arch="$APK_ARCH"
 
 EXPOSE 80 443 443/udp