added option to overwrite the config.json with environment variables

Signed-off-by: Sascha Pfeiffer <sascha.pfeiffer@psono.com>

Author: Sascha Pfeiffer

Dockerfile

@@ -7,8 +7,11 @@ RUN apk upgrade --no-cache \
 
 COPY ./configs/nginx.conf /etc/nginx/nginx.conf
 COPY ./configs/default.conf /etc/nginx/conf.d/default.conf
+COPY ./configs/cmd.sh /root/cmd.sh
 COPY ./build /usr/share/nginx/html/portal
 COPY ./configs/redirect.html /usr/share/nginx/html/index.html
 
 HEALTHCHECK --interval=30s --timeout=3s \
 	CMD curl -f http://localhost/ || exit 1
+
+CMD ["/bin/sh", "/root/cmd.sh"]

configs/cmd.sh

@@ -0,0 +1,6 @@
+if [ ! -z "$PSONO_PORTAL_CONFIG_JSON" ]
+then
+      echo "$PSONO_PORTAL_CONFIG_JSON" > /usr/share/nginx/html/portal/config.json
+fi
+
+nginx -g "daemon off;"