Add Makefile

2 files changed, 24 insertions, 1 deletions

diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..0daf0c1
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,18 @@
+PREFIX = /usr/local
+BINDIR = $(PREFIX)/bin
+
+all:
+        @go build -o certmon certmon.go
+
+clean:
+        @go clean
+
+install:
+        @GOBIN=$$(if test -n "$(NAGIOS_CONF)" && \
+                    test -f "$(NAGIOS_CONF)/resource.cfg"; \
+                 then \
+                    sed -n '/^\$$USER1\$$=/s///p' $$NAGIOS_CONF; \
+                 else \
+                    echo $(BINDIR); \
+                 fi) \
+        go install .
diff --git a/certmon.go b/certmon.go
index 155ff0f..36a520d 100644
--- a/certmon.go
+++ b/certmon.go
@@ -152,7 +152,12 @@ func (res CertResult) FormatPerfData() {
 }
 
 func (rl CertResultList) Format() {
-        //'label'=value[UOM];[warn];[crit];[min];[max]
+        // For details about Nagios plugin output format, refer to:
+        //   https://assets.nagios.com/downloads/nagioscore/docs/nagioscore/4/en/pluginapi.html
+        // and
+        //   https://nagios-plugins.org/doc/guidelines.html
+        // In particular, performance data format is:
+        //   'label'=value[UOM];[warn];[crit];[min];[max]
         fmt.Printf("%s - %s ", statusString[rl.Status], rl.Address)
         rl.Result[0].FormatHR()
         fmt.Printf(" | ")