update docker related

Dockerfile

@@ -2,6 +2,11 @@ FROM        quay.io/prometheus/busybox:latest
 MAINTAINER  Sophos <[email protected]>
 
 COPY nginx_vts_exporter /bin/nginx_vts_exporter
+COPY ./docker-entrypoint.sh /bin/docker-entrypoint.sh
 
-EXPOSE      9913
-ENTRYPOINT  [ "/bin/nginx_vts_exporter" ]
+ENV NGIX_HOST "http://localhost"
+ENV METRICS_ENDPOINT "/metrics"
+ENV METRICS_ADDR ":9913"
+ENV DEFAULT_METRICS_NS "nginx"
+
+ENTRYPOINT ["/bin/docker-entrypoint.sh"]

docker-entrypoint.sh

@@ -1,15 +1,10 @@
 #!/bin/sh
 set -eo pipefail
-binary="/app/nginx-vts-exporter"
+binary="/bin/nginx-vts-exporter"
 default_status="$NGIX_HOST/status/format/json"
 NGINX_STATUS=${NGINX_STATUS:-$default_status}
 METRICS_NS=${METRICS_NS:-$DEFAULT_METRICS_NS}
-VERSION=${VERSION:-$DEFAULT_VERSION}
 
-wget https://github.com/hnlq715/nginx-vts-exporter/releases/download/${VERSION}/nginx-vts-exporter-linux-amd64.tar.gz
-tar xf nginx-vts-exporter-linux-amd64.tar.gz
-mv nginx-vts-exporter-linux-amd64 $binary
-rm nginx-vts-exporter-linux-amd64.tar.gz
 # If there are any arguments then we want to run those instead
 #if [[ "$1" == "$binary" || -z $1 ]]; then
 #  exec "$@"