Debuild

.github/workflows/build-deb.yml

@@ -2,76 +2,49 @@ name: Build and Release DEB Package
 
 on:
   push:
-    tags:
-      - '*'
 
 jobs:
-  rpm-release:
+  deb-release:
     name: Create DEB release
     runs-on: ubuntu-latest
     steps:
       - name: Checkout source code
         uses: actions/checkout@v2
-
-      - name: Install dependencies
-        run: sudo apt-get update && sudo apt-get install -y dpkg-dev
 
-      - name: Check Directory
+      - name: Get Version from control file
+        id: get_version
         run: |
-          pwd
-          ls
+          VERSION=$(grep -Eo "^Version: .+" debian/control | awk '{print $2}')
+          echo "VERSION=$VERSION" >> $GITHUB_ENV
+          echo "The extracted version is: $VERSION"
 
-      - name: Create directories for DEB packaging
+      - name: Install debuild
         run: |
-          mkdir -p nagios-plugins-ets-1.4/usr/lib64/nagios/plugins
-          mkdir -p nagios-plugins-ets-1.4/DEBIAN
-
-      - name: Print folder structure
-        run: |
-          ls -R nagios-plugins-ets-1.4
-
-      - name: Download plugin files
-        run: |
-          # Download each file using wget
-          wget -O nagios-plugins-ets-1.4/check_mem.c https://github.com/ucsd-ets/nagios-plugins-ets/blob/master/check_mem.c
-          wget -O nagios-plugins-ets-1.4/usr/lib64/nagios/plugins/check_service https://github.com/ucsd-ets/nagios-plugins-ets/blob/master/check_service
-          wget -O nagios-plugins-ets-1.4/usr/lib64/nagios/plugins/check_smartctl https://github.com/ucsd-ets/nagios-plugins-ets/blob/master/check_smartctl
-          wget -O nagios-plugins-ets-1.4/usr/lib64/nagios/plugins/check_smartmon2.py https://github.com/ucsd-ets/nagios-plugins-ets/blob/master/check_smartmon2.py
-          wget -O nagios-plugins-ets-1.4/usr/lib64/nagios/plugins/check_smartmon.py https://github.com/ucsd-ets/nagios-plugins-ets/blob/master/check_smartmon.py
-          wget -O nagios-plugins-ets-1.4/usr/lib64/nagios/plugins/check_zpools.sh https://github.com/ucsd-ets/nagios-plugins-ets/blob/master/check_zpools.sh
-          chmod 755 nagios-plugins-ets-1.4/usr/lib64/nagios/plugins/*
-
-      - name: Print folder structure
-        run: |
-          ls -R nagios-plugins-ets-1.4
-
-      - name: Copy plugin files
+          sudo apt-get update
+          sudo apt-get install -y \
+            dpkg-dev \
+            devscripts \
+            build-essential \
+            lintian \
+            debhelper
+
+      - name: Download the source tarball
         run: |
-          cp control nagios-plugins-ets-1.4/DEBIAN/
-          cp postinst nagios-plugins-ets-1.4/DEBIAN/
+          wget -O ../nagios-plugins-ets_${VERSION}.orig.tar.gz https://github.com/ucsd-ets/nagios-plugins-ets/archive/refs/tags/1.2.tar.gz
+          tar zxvf ../nagios-plugins-ets_${VERSION}.orig.tar.gz --strip-components=1
 
       - name: Build DEB package
-        run: dpkg-deb --build nagios-plugins-ets-1.4
-
-      - name: Extract tag name
-        id: extract_tag
-        run: echo "::set-output name=tag::${GITHUB_REF#refs/tags/}"
-
-      - name: Create Release
-        id: create_release
-        uses: softprops/action-gh-release@v1
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-        with:
-          tag_name: ${{ steps.extract_tag.outputs.tag }}
-          name: Release ${{ steps.extract_tag.outputs.tag }}
-          draft: false
-          prerelease: false
-
-      - name: Upload DEB package to Release
-        uses: softprops/action-gh-release@v1
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        run: |
+          debuild -us -uc
+          cp ../nagios-plugins-ets_${VERSION}_amd64.deb nagios-plugins-ets_${VERSION}_amd64.deb
+
+      - name: Print path
+        run: | 
+          ls -l ../
+
+      - name: Archive production artifacts
+        uses: actions/upload-artifact@v4
         with:
-          files: ./nagios-plugins-ets-1.4.deb
-          content_type: application/vnd.debian.binary-package
+          name: nagios-plugins-ets_${{env.VERSION}}_amd64.deb
+          path: |
+            nagios-plugins-ets_${{env.VERSION}}_amd64.deb

.github/workflows/release-deb.yml

@@ -0,0 +1,84 @@
+name: Build and Release DEB Package
+
+on:
+  push:
+    tags:
+      - '*'
+
+jobs:
+  rpm-release:
+    name: Create DEB release
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout source code
+        uses: actions/checkout@v2
+
+      - name: Install dependencies
+        run: sudo apt-get update && sudo apt-get install -y dpkg-dev
+
+      - name: Check Directory
+        run: |
+          pwd
+          ls
+
+      # - name: Create directories for DEB packaging
+      #   run: |
+      #     mkdir -p nagios-plugins-ets-1.4/usr/lib64/nagios/plugins
+      #     mkdir -p nagios-plugins-ets-1.4/DEBIAN
+
+      # - name: Print folder structure
+      #   run: |
+      #     ls -R nagios-plugins-ets-1.4
+
+      # - name: Download plugin files
+      #   run: |
+          # Download each file using wget
+          # wget -O nagios-plugins-ets-1.4/check_mem.c https://github.com/ucsd-ets/nagios-plugins-ets/blob/master/check_mem.c
+          # wget -O nagios-plugins-ets-1.4/usr/lib64/nagios/plugins/check_service https://github.com/ucsd-ets/nagios-plugins-ets/blob/master/check_service
+          # wget -O nagios-plugins-ets-1.4/usr/lib64/nagios/plugins/check_smartctl https://github.com/ucsd-ets/nagios-plugins-ets/blob/master/check_smartctl
+          # wget -O nagios-plugins-ets-1.4/usr/lib64/nagios/plugins/check_smartmon2.py https://github.com/ucsd-ets/nagios-plugins-ets/blob/master/check_smartmon2.py
+          # wget -O nagios-plugins-ets-1.4/usr/lib64/nagios/plugins/check_smartmon.py https://github.com/ucsd-ets/nagios-plugins-ets/blob/master/check_smartmon.py
+          # wget -O nagios-plugins-ets-1.4/usr/lib64/nagios/plugins/check_zpools.sh https://github.com/ucsd-ets/nagios-plugins-ets/blob/master/check_zpools.sh
+          # chmod 755 nagios-plugins-ets-1.4/usr/lib64/nagios/plugins/*
+
+      # - name: Print folder structure
+      #   run: |
+      #     ls -R nagios-plugins-ets-1.4
+
+      # - name: Copy plugin files
+      #   run: |
+      #     # cp control nagios-plugins-ets-1.4/DEBIAN/
+      #     # cp postinst nagios-plugins-ets-1.4/DEBIAN/
+
+      # - name: Build DEB package
+      #   run: dpkg-deb --build nagios-plugins-ets-1.4
+      - name: Build DEB package
+        run: |
+          ## READ VERSION FROM CONTROL FILE
+          VERSION=1.2
+          wget -O ../nagios-plugins-ets_${VERSION}.orig.tar.gz https://github.com/ucsd-ets/nagios-plugins-ets/archive/refs/tags/1.2.tar.gz
+          tar zxvf ../nagios-plugins-ets_${VERSION}.orig.tar.gz --strip-components=1
+          debuild -us -uc
+
+      - name: Extract tag name
+        id: extract_tag
+        run: echo "::set-output name=tag::${GITHUB_REF#refs/tags/}"
+
+      - name: Create Release
+        id: create_release
+        uses: softprops/action-gh-release@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          tag_name: ${{ steps.extract_tag.outputs.tag }}
+          name: Release ${{ steps.extract_tag.outputs.tag }}
+          draft: false
+          prerelease: false
+
+      - name: Upload DEB package to Release
+        uses: softprops/action-gh-release@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          files: ../nagios-plugins-ets-1.4.deb
+          content_type: application/vnd.debian.binary-package

.gitignore

@@ -0,0 +1 @@
+output

Makefile

@@ -0,0 +1,6 @@
+helloworld:
+	mkdir -p output
+	gcc check_mem.c -o output/check_mem
+
+install: helloworld
+	install -m 0755 check_mem /usr/lib64/nagios/plugins

README.md

@@ -51,3 +51,58 @@ ls -l /tmp/rpms/x86_64
 ```
 
 https://github.com/docker-rpm-builder/docker-rpm-builder
+
+
+# How to build the deb
+
+Refer to the [tutorial](https://www.debian.org/doc/manuals/debmake-doc/ch04.en.html) for the directory structure.
+
+
+1. Install debuild
+
+       sudo apt-get install -y \
+              dpkg-dev \
+              devscripts \
+              build-essential \
+              lintian \
+              debhelper
+
+2. Clone the debian package repo
+
+        git clone https://github.com/ucsd-ets/nagios-plugins-ets-deb.git
+
+3. Download the source tarball
+
+        wget -O ../nagios-plugins-ets_1.4.orig.tar.gz https://github.com/ \
+            ucsd-ets/nagios-plugins-ets/archive/refs/tags/1.2.tar.gz
+
+4. Extract source
+
+        tar zxvf ../nagios-plugins-ets_1.4.orig.tar.gz --strip-components=1
+
+5. Run debuild
+
+        debuild -us -uc
+
+6. Check the output
+        dpkg -c ../nagios-plugins-ets_1.4_amd64.deb
+
+See:
+* https://blog.packagecloud.io/buildling-debian-packages-with-debuild/
+* https://metebalci.com/blog/a-minimum-complete-example-of-debian-packaging-and-launchpad-ppa-hellodeb/
+* https://www.debian.org/doc/manuals/debmake-doc/ch04.en.html
+
+# Installation
+
+    dpkg -i nagios-plugins-ets-1.4.deb
+
+
+
+# notes
+
+debuild calls dh build which calls dh_auto_build which calls make -j1 which selects the 1st goal which is install.
+
+When I've added
+
+all:
+before install to makefile, the problem was solved.

check_mem.c

@@ -0,0 +1,127 @@
+#include <ctype.h>
+#include <inttypes.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <unistd.h>
+
+#define INVAL_SIZE UINT64_C(0xFFFFFFFFFFFFFFFF)
+
+struct mem_stats
+{
+	uint64_t total_kB;
+	uint64_t avail_kB;
+	uint64_t free_kB;
+	uint64_t buffers_kB;
+	uint64_t cached_kB;
+	uint64_t used_kB;
+};
+
+static void dump_mem_stats(struct mem_stats *mem_stats)
+{
+	FILE *fp;
+	char line[1024];
+	unsigned int i;
+	char *nptr;
+
+	fp = fopen("/proc/meminfo", "r");
+
+	mem_stats->total_kB = INVAL_SIZE;
+	mem_stats->avail_kB = INVAL_SIZE;
+	mem_stats->free_kB = INVAL_SIZE;
+	mem_stats->buffers_kB = INVAL_SIZE;
+	mem_stats->cached_kB = INVAL_SIZE;
+	mem_stats->used_kB = INVAL_SIZE;
+
+	while (!feof(fp) && !ferror(fp))
+	{
+		if (!fgets(line, sizeof(line), fp))
+			continue;
+
+		if (strncmp(&line[0], "MemTotal:", 9) == 0)
+		{
+			mem_stats->total_kB = strtoull(&line[9], &nptr, 10);
+			continue;
+		}
+
+		if (strncmp(&line[0], "MemAvailable:", 13) == 0)
+		{
+			mem_stats->avail_kB = strtoull(&line[13], &nptr, 10);
+			continue;
+		}
+
+		if (strncmp(&line[0], "memFree:", 8) == 0)
+		{
+			mem_stats->free_kB = strtoull(&line[8], &nptr, 10);
+			continue;
+		}
+
+		if (strncmp(&line[0], "Buffers:", 8) == 0)
+		{
+			mem_stats->buffers_kB = strtoull(&line[8], &nptr, 10);
+			continue;
+		}
+
+		if (strncmp(&line[0], "Cached:", 7) == 0)
+		{
+			mem_stats->cached_kB = strtoull(&line[7], &nptr, 10);
+			continue;
+		}
+	}
+
+	fclose(fp);
+
+	if (mem_stats->avail_kB == INVAL_SIZE)
+	{
+		mem_stats->avail_kB = 0;
+
+		if (mem_stats->free_kB != INVAL_SIZE)
+			mem_stats->avail_kB += mem_stats->free_kB;
+
+		if (mem_stats->buffers_kB != INVAL_SIZE)
+			mem_stats->avail_kB += mem_stats->buffers_kB;
+
+		if (mem_stats->cached_kB != INVAL_SIZE)
+			mem_stats->avail_kB += mem_stats->cached_kB;
+	}
+
+	if (mem_stats->used_kB == INVAL_SIZE)
+		mem_stats->used_kB = mem_stats->total_kB - mem_stats->avail_kB;
+}
+
+int main(int argc, char **argv)
+{
+	int result;
+	float warn_threshold;
+	float crit_threshold;
+	struct mem_stats stats;
+	float mem_pct;
+	const char *panic_str;
+
+	/* cmd line : $0 -w warn_threshold -c crit_threshold */
+	warn_threshold = strtof(argv[2], NULL);
+	crit_threshold = strtof(argv[4], NULL);
+
+	dump_mem_stats(&stats);
+
+	mem_pct = 10000 * stats.used_kB / stats.total_kB / 100.f;
+
+	panic_str = "OK";
+	result = 0;
+	if (mem_pct >= crit_threshold)
+	{
+		panic_str = "Critical";
+		result = 2;
+	}
+	else if (mem_pct >= warn_threshold)
+	{
+		panic_str = "Warning";
+		result = 1;
+	}
+
+	printf("MEMORY %s - Used = %.2f%% | 'Total'=%" PRIu64 "MB 'Used'=%" PRIu64 "MB 'Free'=%" PRIu64 "MB\n", panic_str, mem_pct, stats.total_kB / 1024, stats.used_kB / 1024, stats.avail_kB / 1024);
+
+	return result;
+}