From 646dff9c9d511b27d45ff29cb3cb90f8545b0a3e Mon Sep 17 00:00:00 2001
From: tbauriedel <tobias.bauriedel@netways.de>
Date: Mon, 15 Aug 2022 14:46:03 +0200
Subject: [PATCH] postgresql: add version

---
 README.md                       | 1 +
 modules/postgresql/collector.go | 8 ++++++++
 2 files changed, 9 insertions(+)

diff --git a/README.md b/README.md
index ef8820e..2de5990 100644
--- a/README.md
+++ b/README.md
@@ -114,6 +114,7 @@ See [modules/mysql/collector.go](modules/mysql/collector.go) for details.
 
 Module: `postgresql`
 
+* PostgreSQL version
 * Package versions
 * Service status
 * Configuration files from `/etc/postgresql` and `/var/lib/pgsql` (depending on OS)
diff --git a/modules/postgresql/collector.go b/modules/postgresql/collector.go
index 867e91c..39cffa5 100644
--- a/modules/postgresql/collector.go
+++ b/modules/postgresql/collector.go
@@ -17,6 +17,10 @@ var files = []string{
 	"/var/lib/pgsql/data/*.conf", // RedHat based systems, where the configuration is found
 }
 
+var commands = map[string][]string{
+	"version.txt": {"psql", "-V"},
+}
+
 var possibleServices = []string{
 	"postgresql",
 }
@@ -46,4 +50,8 @@ func Collect(c *collection.Collection) {
 	for _, service := range possibleServices {
 		c.AddServiceStatusRaw(ModuleName+"/service-"+service+".txt", service)
 	}
+
+	for name, cmd := range commands {
+		c.AddCommandOutput(ModuleName+"/"+name, cmd[0], cmd[1:]...)
+	}
 }