Use fully qualified label name

Author: emmetog

README.md

@@ -30,10 +30,10 @@ $ docker run -d -p 80:80 -p 443:443 \
     -v /etc/nginx/vhost.d \
     -v /usr/share/nginx/html \
     -v /var/run/docker.sock:/tmp/docker.sock:ro \
-    --label jrcs.nginx_letsencrypt_companion.is_proxy=true \
+    --label com.github.jrcs.letsencrypt_nginx_proxy_companion.nginx_proxy=true \
     jwilder/nginx-proxy
 ```
-The "jrcs.nginx_letsencrypt_companion.is_proxy=true" label is needed so that the letsencrypt container knows which nginx proxy container to use.
+The "com.github.jrcs.letsencrypt_nginx_proxy_companion.nginx_proxy=true" label is needed so that the letsencrypt container knows which nginx proxy container to use.
 
 * Second start this container:
 ```bash
@@ -74,7 +74,7 @@ $ docker run -d -p 80:80 -p 443:443 \
     -v /etc/nginx/vhost.d \
     -v /usr/share/nginx/html \
     -v /path/to/certs:/etc/nginx/certs:ro \
-    --label jrcs.nginx_letsencrypt_companion.is_proxy=true \
+    --label com.github.jrcs.letsencrypt_nginx_proxy_companion.nginx_proxy=true \
     nginx
 ```
 
@@ -150,7 +150,7 @@ $ docker run -d \
 
 * `DEBUG` - Set it to `true` to enable debugging of the entrypoint script and generation of LetsEncrypt certificates, which could help you pin point any configuration issues.
 
-* The "jrcs.nginx_letsencrypt_companion.is_proxy=true" label - set this label on the nginx-proxy container to tell the docker-letsencrypt-nginx-proxy-companion container to use it as the proxy.
+* The "com.github.jrcs.letsencrypt_nginx_proxy_companion.nginx_proxy=true" label - set this label on the nginx-proxy container to tell the docker-letsencrypt-nginx-proxy-companion container to use it as the proxy.
 
 #### Examples:
 

app/entrypoint.sh

@@ -34,13 +34,13 @@ function get_nginx_proxy_cid {
         fi
     done
     # Check if any container has been labelled as the nginx proxy container.
-    local labeled_cid=$(docker_api "/containers/json" | jq -r '.[] | select( .Labels["jrcs.nginx_letsencrypt_companion.is_proxy"] == "true")|.Id')
+    local labeled_cid=$(docker_api "/containers/json" | jq -r '.[] | select( .Labels["com.github.jrcs.letsencrypt_nginx_proxy_companion.nginx_proxy"] == "true")|.Id')
     if [[ ! -z "${labeled_cid:-}" ]]; then
         export NGINX_PROXY_CONTAINER=$labeled_cid
     fi
     if [[ -z "${NGINX_PROXY_CONTAINER:-}" ]]; then
         echo "Error: can't get nginx-proxy container id !" >&2
-        echo "Check that you use the --volumes-from option to mount volumes from the nginx-proxy or label the nginx proxy container to use with 'jrcs.nginx_letsencrypt_companion.is_proxy=true'." >&2
+        echo "Check that you use the --volumes-from option to mount volumes from the nginx-proxy or label the nginx proxy container to use with 'com.github.jrcs.letsencrypt_nginx_proxy_companion.nginx_proxy=true'." >&2
         exit 1
     fi
 }