Adds multipathd_metrics.sh

iscsi_names.sh

@@ -0,0 +1,7 @@
+#!/bin/bash
+
+InitiatorName=$(grep "^InitiatorName=" /etc/iscsi/initiatorname.iscsi | cut -d'=' -f2)
+
+echo "# HELP node_iscsi_initiator_name name of the nodes iSCSI initiator"
+echo "# TYPE node_iscsi_initiator_name gauge"
+echo 'node_iscsi_initiator_name{initiator_name="'"${InitiatorName}"'"}1'

multipathd_metrics.sh

@@ -0,0 +1,182 @@
+#!/bin/bash
+
+# Author: Nick Galtry
+# Usage: Script that jq queries against JSON output of multipathd show multipaths command, formats results for Promtheus textfile collector
+# Requires: jq
+
+set -e
+
+# Function for handling errors, "scrubs the multipathd.prom file"
+error_trap() {
+    local error_msg="$1"
+    echo "$error_msg"
+    exit 1
+}
+
+if ! command -v jq &> /dev/null; then
+  error_trap "Error: jq is not installed."
+fi
+
+# Variable set for command to run with jq
+if ! command_output=$(multipathd show multipaths json)
+then
+  error_trap "Error: Failed to run multipathd show multipaths"
+fi
+
+if echo "$command_output" | jq -e '.maps | length == 0' >/dev/null 2>/dev/null; then
+  exit 0
+fi
+
+node_multipath_paths_dm_st=$(echo "$command_output" |
+    jq -c -r '.maps[] |
+        {
+         name: .name,
+         uuid: .uuid,
+         vend: (.vend | sub("^[[:space:]]+"; "") | sub("[[:space:]]+$"; "")),
+         prod: .prod,
+         count: [.path_groups[].paths[] | select(.dm_st == "active")] | length
+        }' |
+        sed -E 's/^/node_multipath_paths_dm_st/;
+                s/"name"/name/;
+                s/"uuid"/uuid/;
+                s/"vend"/vend/;
+                s/"prod":"([^"]*)"/prod:"\1",state="active"/;
+                s/,"count":([0-9]+)}/\}\1/g;
+                s/:/=/g'
+)
+
+if [ -z "$node_multipath_paths_dm_st" ]; then
+ error_trap "Error processing node_multipath_paths_dm_st metric"
+else
+ echo "# HELP node_multipath_paths_dm_st A count of paths with active state in path_groups"
+ echo "# TYPE node_multipath_paths_dm_st gauge"
+ echo "${node_multipath_paths_dm_st}"
+fi
+
+node_multipath_paths_chk_st=$(echo "$command_output" |
+    jq -c -r '.maps[] |
+        {
+         name: .name,
+         uuid: .uuid,
+         vend: (.vend | sub("^[[:space:]]+"; "") | sub("[[:space:]]+$"; "")),
+         prod: .prod,
+         count: [.path_groups[].paths[] | select(.chk_st == "ready")] | length
+        }' |
+        sed -E 's/^/node_multipath_paths_chk_st/;
+                s/"name"/name/;
+                s/"uuid"/uuid/;
+                s/"vend"/vend/;
+                s/"prod":"([^"]*)"/prod:"\1",state="ready"/;
+                s/,"count":([0-9]+)}/\}\1/g;
+                s/:/=/g'
+)
+
+if [ -z "$node_multipath_paths_chk_st" ]; then
+ error_trap "Error processing node_multipath_paths_chk_st metric"
+else
+ echo "# HELP node_multipath_paths_chk_st A count of paths with chk_st ready in path_groups"
+ echo "# TYPE node_multipath_paths_chk_st gauge"
+ echo "${node_multipath_paths_chk_st}"
+fi
+
+node_multipath_paths_dev_st=$(echo "$command_output" |
+    jq -c -r '.maps[] |
+        {
+         name: .name,
+         uuid: .uuid,
+         vend: (.vend | sub("^[[:space:]]+"; "") | sub("[[:space:]]+$"; "")),
+         prod: .prod,
+         count: [.path_groups[].paths[] | select(.dev_st == "running")] | length
+        }' |
+        sed -E 's/^/node_multipath_paths_dev_st/;
+                s/"name"/name/;
+                s/"uuid"/uuid/;
+                s/"vend"/vend/;
+                s/"prod":"([^"]*)"/prod:"\1",state="running"/;
+                s/,"count":([0-9]+)}/\}\1/g;
+                s/:/=/g'
+)
+if [ -z "$node_multipath_paths_dev_st" ]; then
+ error_trap "Error processing node_multipath_paths_dev_st metric"
+else
+ echo "# HELP node_multipath_paths_dev_st A count of paths with dev_st running in path_groups"
+ echo "# TYPE node_multipath_paths_dev_st gauge"
+ echo "${node_multipath_paths_dev_st}"
+fi
+
+node_multipath_dm_st=$(echo "$command_output" |
+    jq -c -r '.maps[] |
+        {
+         name: .name,
+         uuid: .uuid,
+         vend: (.vend | sub("^[[:space:]]+"; "") | sub("[[:space:]]+$"; "")),
+         prod: .prod,
+         count: [select(.dm_st == "active")] | length
+        }' |
+        sed -E 's/^/node_multipath_dm_st/;
+                s/"name"/name/;
+                s/"uuid"/uuid/;
+                s/"vend"/vend/;
+                s/"prod":"([^"]*)"/prod:"\1",state="active"/;
+                s/,"count":([0-9]+)}/\}\1/g;
+                s/:/=/g'
+)
+if [ -z "$node_multipath_dm_st" ]; then
+ error_trap "Error processing node_multipath_dm_st metric"
+else
+ echo "# HELP node_multipath_dm_st A count of active dm_st per multipath device"
+ echo "# TYPE node_multipath_dm_st gauge"
+ echo "${node_multipath_dm_st}"
+fi
+
+node_multipath_path_nr=$(echo "$command_output" |
+    jq -c -r '.maps[] |
+        {
+         name: .name,
+         uuid: .uuid,
+         vend: (.vend | sub("^[[:space:]]+"; "") | sub("[[:space:]]+$"; "")),
+         prod: .prod,
+         count: .paths
+        }' |
+        sed -E 's/^/node_multipath_path_nr/;
+                s/"name"/name/;
+                s/"uuid"/uuid/;
+                s/"vend"/vend/;
+                s/"prod"/prod/;
+                s/,"count":([0-9]+)}/\}\1/g;
+                s/:/=/g' |
+        sed 's/ "count"://'
+)
+if [ -z "$node_multipath_path_nr" ]; then
+ error_trap "Error processing node_multipath_path_nr metric"
+else
+ echo "# HELP node_multipath_path_nr A count of paths per multipath device"
+ echo "# TYPE node_multipath_path_nr gauge"
+ echo "${node_multipath_path_nr}"
+fi
+
+node_multipath_path_faults=$(echo "$command_output" |
+    jq -c -r '.maps[] |
+        {
+         name: .name,
+         uuid: .uuid,
+         vend: (.vend | sub("^[[:space:]]+"; "") | sub("[[:space:]]+$"; "")),
+         prod: .prod,
+         count: .path_faults
+        }' |
+        sed -E 's/^/node_multipath_path_faults/;
+                s/"name"/name/;
+                s/"uuid"/uuid/;
+                s/"vend"/vend/;
+                s/"prod"/prod/;
+                s/,"count":([0-9]+)}/\}\1/g;
+                s/:/=/g' |
+        sed 's/ "count"://'
+)
+if [ -z "$node_multipath_path_faults" ]; then
+ error_trap "Error processing node_multipath_path_faults metric"
+else
+ echo "# HELP node_multipath_path_faults A count of faults reported per multipath device"
+ echo "# TYPE node_multipath_path_faults gauge"
+ echo "${node_multipath_path_faults}"
+fi