Add CPU Temperature to NetData

.github/workflows/friendlywrt.yml

@@ -84,16 +84,24 @@ jobs:
           ./scripts/feeds install -a
         
       - name: Install Mods
-        env:
-          build_tag: ${{ steps.changelog.outputs.buildtag }}
         run: |
           cd friendlywrt-rk3328
           sed -i '/Load Average/i\\t\t<tr><td width="33%"><%:CPU Temperature%></td><td><%=luci.sys.exec("cut -c1-2 /sys/class/thermal/thermal_zone0/temp")%> ℃</td></tr>' friendlywrt/feeds/luci/modules/luci-mod-admin-full/luasrc/view/admin_status/index.htm
           sed -i 's/pcdata(boardinfo.system or "?")/"ARMv8"/' friendlywrt/feeds/luci/modules/luci-mod-admin-full/luasrc/view/admin_status/index.htm
           sed -i "/redirect_https/d" friendlywrt/package/network/services/uhttpd/files/uhttpd.config
           echo "sed -i 's/https:/http:/' /etc/opkg/distfeeds.conf" >> friendlywrt/package/base-files/files/root/setup.sh
-          sed -i '/luciversion/a \/ $build_tag by <a href="https://songchenwen.com">scw</a>' friendlywrt/feeds/luci/modules/luci-mod-admin-full/luasrc/view/admin_status/index.htm
-        
+          sed -i '/luciversion/a \/ ${{ steps.changelog.outputs.buildtag }} by <a href="https://songchenwen.com">scw</a>' friendlywrt/feeds/luci/modules/luci-mod-admin-full/luasrc/view/admin_status/index.htm
+      
+      - name: Add Temperature to Netdata
+        run: |
+          cd friendlywrt-rk3328
+          mkdir -p friendlywrt/package/base-files/files/usr/lib/netdata/charts.d
+          cp ../scripts/temp.chart.sh friendlywrt/package/base-files/files/usr/lib/netdata/charts.d/
+          echo "sed -i 's/charts.d = no/charts.d = yes/' /etc/netdata/netdata.conf" >> friendlywrt/package/base-files/files/root/setup.sh
+          echo "cp /usr/lib/netdata/conf.d/charts.d.conf /etc/netdata/" >> friendlywrt/package/base-files/files/root/setup.sh
+          echo "echo 'temp=yes' >> /etc/netdata/charts.d.conf" >> friendlywrt/package/base-files/files/root/setup.sh
+          echo "/etc/init.d/netdata restart" >> friendlywrt/package/base-files/files/root/setup.sh
+          
       - name: Download Clash Binary
         if: steps.changelog.outputs.changelog != ''
         run: |

minimal_config.seed

@@ -85,6 +85,7 @@ CONFIG_PACKAGE_pv=y
 CONFIG_PACKAGE_pigz=y
 CONFIG_PACKAGE_unzip=y
 CONFIG_PACKAGE_coreutils-nohup=y
+CONFIG_PACKAGE_coreutils-timeout=y
 CONFIG_PACKAGE_luci-app-opkg=y
 CONFIG_PACKAGE_iptables-mod-extra=y
 CONFIG_PACKAGE_kmod-ipt-extra=y

scripts/temp.chart.sh

+# shellcheck shell=bash
+# no need for shebang - this file is loaded from charts.d.plugin
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+# netdata
+# real-time performance and health monitoring, done right!
+# (C) 2016 Costa Tsaousis <costa@tsaousis.gr>
+#
+
+# if this chart is called X.chart.sh, then all functions and global variables
+# must start with X_
+
+# _update_every is a special variable - it holds the number of seconds
+# between the calls of the _update() function
+temp_update_every=
+
+# the priority is used to sort the charts on the dashboard
+# 1 = the first chart
+temp_priority=1
+
+# global variables to store our collected data
+# remember: they need to start with the module name example_
+temp_cpu=40
+temp_cpu_file=/sys/class/thermal/thermal_zone0/temp
+
+temp_get() {
+  # do all the work to collect / calculate the values
+  # for each dimension
+  #
+  # Remember:
+  # 1. KEEP IT SIMPLE AND SHORT
+  # 2. AVOID FORKS (avoid piping commands)
+  # 3. AVOID CALLING TOO MANY EXTERNAL PROGRAMS
+  # 4. USE LOCAL VARIABLES (global variables may overlap with other modules)
+
+  if [ -f "$temp_cpu_file" ]; then
+    temp_cpu=$(cat $temp_cpu_file)
+  else
+    return 1
+  fi
+
+  # this should return:
+  #  - 0 to send the data to netdata
+  #  - 1 to report a failure to collect the data
+
+  return 0
+}
+
+# _check is called once, to find out if this chart should be enabled or not
+temp_check() {
+  # this should return:
+  #  - 0 to enable the chart
+  #  - 1 to disable the chart
+
+  # check something
+  
+  # check that we can collect data
+  temp_get || return 1
+
+  return 0
+}
+
+# _create is called once, to create the charts
+temp_create() {
+  # create the chart with 3 dimensions
+  cat << EOF
+CHART Gauge.Temperature 'Temperature' "CPU Temperature" "Celsius Degree" "Temperature" "" line $temp_priority $temp_update_every
+DIMENSION CPU '' absolute 1 1000
+EOF
+
+  return 0
+}
+
+# _update is called continuously, to collect the values
+temp_update() {
+  # the first argument to this function is the microseconds since last update
+  # pass this parameter to the BEGIN statement (see bellow).
+
+  temp_get || return 1
+
+  # write the result of the work.
+  cat << VALUESEOF
+BEGIN Gauge.Temperature $1
+SET CPU = $temp_cpu
+END
+VALUESEOF
+
+  return 0
+}
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