adding node exporter, loki, and promtail

loki/rootfs/etc/cont-init.d/nginx.sh

@@ -0,0 +1,52 @@
+#!/usr/bin/with-contenv bashio
+# shellcheck shell=bash
+# ==============================================================================
+# Home Assistant Add-on: Loki
+# This file configures nginx
+# ==============================================================================
+readonly NGINX_SERVERS=/etc/nginx/servers
+readonly NGINX_CONF="${NGINX_SERVERS}/direct.conf"
+declare certfile
+declare keyfile
+
+bashio::config.require.ssl
+
+if bashio::config.true 'ssl'; then
+    bashio::log.info 'Setting up SSL...'
+
+    certfile=$(bashio::config 'certfile')
+    keyfile=$(bashio::config 'keyfile')
+
+    if ! bashio::config.is_empty 'cafile'; then
+        bashio::log.info 'Setting up mTLS...'
+        cafile=$(bashio::config 'cafile')
+
+        # Absolute path support deprecated 4/21 for release 1.5.0.
+        # Wait until at least 5/21 to remove
+        if [[ $cafile =~ ^\/ ]]; then
+            bashio::log.warning "Providing an absolute path for 'cafile' is deprecated."
+            bashio::log.warning "Support for absolute paths will be removed in a future release."
+            bashio::log.warning "Please put your CA file in /ssl and provide a relative path."
+        else
+            cafile="/ssl/${cafile}"
+        fi
+
+        if ! bashio::fs.file_exists "${cafile}"; then
+	        bashio::log.fatal
+	        bashio::log.fatal "The file specified for 'cafile' does not exist!"
+	        bashio::log.fatal "Ensure the CA certificate file exists and full path is provided"
+	        bashio::log.fatal
+	        bashio::exit.nok
+	    fi
+	
+	    mv "${NGINX_SERVERS}/direct-mtls.disabled" "${NGINX_CONF}"
+	    sed -i "s#%%cafile%%#${cafile}#g" "${NGINX_CONF}"
+    else
+        mv "${NGINX_SERVERS}/direct-ssl.disabled" "${NGINX_CONF}"
+    fi
+	    
+    sed -i "s#%%certfile%%#${certfile}#g" "${NGINX_CONF}"
+    sed -i "s#%%keyfile%%#${keyfile}#g" "${NGINX_CONF}"
+else
+    mv "${NGINX_SERVERS}/direct.disabled" "${NGINX_CONF}"
+fi