feat: deprecate node_buffer_size_bytes and introduce logging_node_age…

…nt_buffer_size_bytes

Signed-off-by: Zadkiel Aharonian <[email protected]>

buffer-size.sh

@@ -3,10 +3,17 @@
 [ -z "$BUFFER_PATH" ] && BUFFER_PATH=/buffers
 
 while true; do
+    # Deprecated: node_buffer_size_bytes will soon be replaced by logging_node_agent_buffer_size_bytes
+    # logging_node_agent_buffer_size_bytes adds the host label and reduce cardinality by keeping only the top dir values
     echo "# HELP node_buffer_size_bytes Disk space used" > /prometheus/node_exporter/textfile_collector/buffer_size.prom
     echo "# TYPE node_buffer_size_bytes gauge" >> /prometheus/node_exporter/textfile_collector/buffer_size.prom
     du -ab ${BUFFER_PATH} | sed -ne 's/\\/\\\\/;s/"/\\"/g;s/^\([0-9]\+\)\t\(.*\)$/node_buffer_size_bytes{entity="\2"} \1/p' >> /prometheus/node_exporter/textfile_collector/buffer_size.prom.$$
     mv /prometheus/node_exporter/textfile_collector/buffer_size.prom.$$ /prometheus/node_exporter/textfile_collector/buffer_size.prom
 
+    echo "# HELP logging_node_agent_buffer_size_bytes Disk space used" > /prometheus/node_exporter/textfile_collector/logging_node_agent_buffer_size_bytes.prom
+    echo "# TYPE logging_node_agent_buffer_size_bytes gauge" >> /prometheus/node_exporter/textfile_collector/logging_node_agent_buffer_size_bytes.prom
+    du -sb ${BUFFER_PATH} | sed -ne 's/\\/\\\\/;s/"/\\"/g;s/^\([0-9]\+\)\t\(.*\)$/logging_node_agent_buffer_size_bytes{entity="\2", host="'$(hostname)'"} \1/p' >> /prometheus/node_exporter/textfile_collector/logging_node_agent_buffer_size_bytes.prom.$$
+    mv /prometheus/node_exporter/textfile_collector/logging_node_agent_buffer_size_bytes.prom.$$ /prometheus/node_exporter/textfile_collector/logging_node_agent_buffer_size_bytes.prom
+
     sleep 60
 done