/collectors/charts.d.plugin: remove deprecated modules (#7962)

* /collectors/charts.d.plugin: skip obsolete modules during loading

* /collectors/charts.d.plugin: remove apache

* /collectors/charts.d.plugin: remove cpu_apps

* /collectors/charts.d.plugin: remove cpufreq

* /collectors/charts.d.plugin: remove exim

* /collectors/charts.d.plugin: remove hddtemp

* /collectors/charts.d.plugin: remove load_average

* /collectors/charts.d.plugin: remove mem_apps

* /collectors/charts.d.plugin: remove mysql

* /collectors/charts.d.plugin: remove nginx

* /collectors/charts.d.plugin: remove phpfpm

* /collectors/charts.d.plugin: remove postfix

* /collectors/charts.d.plugin: remove sensors

* /collectors/charts.d.plugin: remove squid

* /collectors/charts.d.plugin: remove tomcat

* /collectors/charts.d.plugin: update charts.d.conf

* Revert "/collectors/charts.d.plugin: remove sensors"

This reverts commit e3388853

* /collectors/charts.d.plugin: add sensors to Makefile.am

* /docs: remove obsolete modules from Add-more-charts-to-netdata.md

* /docs/generator: remove obsolete modules from buildyaml.sh

* /collectors/charts.d.plugin: remove sensors from obsolete_charts

* /collectors/charts.d.plugin: better debug msg for obsolete modules

* /collectors/charts.d.plugin: better debug msg for obsolete modules

* /collectors/charts.d.plugin: use `replaced by` instead of `obsolete by`

* add BREAKING_CHANGES.md and mention removing deprecated bash modules there

2 files changed, 0 insertions, 26 deletions

diff --git a/docs/Add-more-charts-to-netdata.md b/docs/Add-more-charts-to-netdata.md
index 624d811caa..8611559646 100644
--- a/docs/Add-more-charts-to-netdata.md
+++ b/docs/Add-more-charts-to-netdata.md
@@ -145,16 +145,12 @@ These are all the data collection plugins currently available.
 | application | language | notes |
 |:---------:|:------:|:----|
 | apache|python<br/>v2 or v3|Connects to multiple apache servers (local or remote) to collect real-time performance metrics.<br/> <br/>Netdata plugin: [python.d.plugin](../collectors/python.d.plugin)<br/>plugin module: [apache.chart.py](../collectors/python.d.plugin/apache)<br/>configuration file: [python.d/apache.conf](../collectors/python.d.plugin/apache)|
-| apache|BASH<br/>Shell Script|Connects to an apache server (local or remote) to collect real-time performance metrics.<br/><br/>DEPRECATED IN FAVOR OF THE PYTHON ONE. It is still supplied only as an example module to shell scripting plugins.<br/> <br/>Netdata plugin: [charts.d.plugin](../collectors/charts.d.plugin#chartsdplugin)<br/>plugin module: [apache.chart.sh](../collectors/charts.d.plugin/apache)<br/>configuration file: [charts.d/apache.conf](../collectors/charts.d.plugin/apache)|
 | ipfs|python<br/>v2 or v3|Connects to multiple ipfs servers (local or remote) to collect real-time performance metrics.<br/> <br/>Netdata plugin: [python.d.plugin](../collectors/python.d.plugin)<br/>plugin module: [ipfs.chart.py](../collectors/python.d.plugin/ipfs)<br/>configuration file: [python.d/ipfs.conf](../collectors/python.d.plugin/ipfs)|
 | litespeed|python<br/>v2 or v3|reads the litespeed `rtreport` files to collect metrics.<br/> <br/>Netdata plugin: [python.d.plugin](../collectors/python.d.plugin)<br/>plugin module: [litespeed.chart.py](../collectors/python.d.plugin/litespeed)<br/>configuration file: [python.d/litespeed.conf](../collectors/python.d.plugin/litespeed)|
 | nginx|python<br/>v2 or v3|Connects to multiple nginx servers (local or remote) to collect real-time performance metrics.<br/> <br/>Netdata plugin: [python.d.plugin](../collectors/python.d.plugin)<br/>plugin module: [nginx.chart.py](../collectors/python.d.plugin/nginx)<br/>configuration file: [python.d/nginx.conf](../collectors/python.d.plugin/nginx)|
 | nginx_plus|python<br/>v2 or v3|Connects to multiple nginx_plus servers (local or remote) to collect real-time performance metrics.<br/> <br/>Netdata plugin: [python.d.plugin](../collectors/python.d.plugin)<br/>plugin module: [nginx_plus.chart.py](../collectors/python.d.plugin/nginx_plus)<br/>configuration file: [python.d/nginx_plus.conf](../collectors/python.d.plugin/nginx_plus)|
-| nginx|BASH<br/>Shell Script|Connects to an nginx server (local or remote) to collect real-time performance metrics.<br/><br/>DEPRECATED IN FAVOR OF THE PYTHON ONE. It is still supplied only as an example module to shell scripting plugins.<br/> <br/>Netdata plugin: [charts.d.plugin](../collectors/charts.d.plugin#chartsdplugin)<br/>plugin module: [nginx.chart.sh](../collectors/charts.d.plugin/nginx)<br/>configuration file: [charts.d/nginx.conf](../collectors/charts.d.plugin/nginx)|
 | phpfpm|python<br/>v2 or v3|Connects to multiple phpfpm servers (local or remote) to collect real-time performance metrics.<br/> <br/>Netdata plugin: [python.d.plugin](../collectors/python.d.plugin)<br/>plugin module: [phpfpm.chart.py](../collectors/python.d.plugin/phpfpm)<br/>configuration file: [python.d/phpfpm.conf](../collectors/python.d.plugin/phpfpm)|
-| phpfpm|BASH<br/>Shell Script|Connects to one or more phpfpm servers (local or remote) to collect real-time performance metrics.<br/><br/>DEPRECATED IN FAVOR OF THE PYTHON ONE. It is still supplied only as an example module to shell scripting plugins.<br/> <br/>Netdata plugin: [charts.d.plugin](../collectors/charts.d.plugin#chartsdplugin)<br/>plugin module: [phpfpm.chart.sh](../collectors/charts.d.plugin/phpfpm)<br/>configuration file: [charts.d/phpfpm.conf](../collectors/charts.d.plugin/phpfpm)|
 | tomcat|python<br/>v2 or v3|Connects to multiple tomcat servers (local or remote) to collect real-time performance metrics.<br/> <br/>Netdata plugin: [python.d.plugin](../collectors/python.d.plugin)<br/>plugin module: [tomcat.chart.py](../collectors/python.d.plugin/tomcat)<br/>configuration file: [python.d/tomcat.conf](../collectors/python.d.plugin/tomcat)|
-| tomcat|BASH<br/>Shell Script|Connects to a tomcat server (local or remote) to collect real-time performance metrics.<br/><br/>DEPRECATED IN FAVOR OF THE PYTHON ONE. It is still supplied only as an example module to shell scripting plugins.<br/> <br/>Netdata plugin: [charts.d.plugin](../collectors/charts.d.plugin#chartsdplugin)<br/>plugin module: [tomcat.chart.sh](../collectors/charts.d.plugin/tomcat)<br/>configuration file: [charts.d/tomcat.conf](../collectors/charts.d.plugin/tomcat)|
 
 ---
 
@@ -174,7 +170,6 @@ These are all the data collection plugins currently available.
 | memcached|python<br/>v2 or v3|Connects to multiple memcached servers (local or remote) to collect real-time performance metrics.<br/> <br/>Netdata plugin: [python.d.plugin](../collectors/python.d.plugin)<br/>plugin module: [memcached.chart.py](../collectors/python.d.plugin/memcached)<br/>configuration file: [python.d/memcached.conf](../collectors/python.d.plugin/memcached)|
 | mongodb|python<br/>v2 or v3|Connects to multiple `mongodb` servers (local or remote) to collect real-time performance metrics.<br/> <br/>Requires package `python-pymongo`.<br/> <br/>Netdata plugin: [python.d.plugin](../collectors/python.d.plugin)<br/>plugin module: [mongodb.chart.py](../collectors/python.d.plugin/mongodb)<br/>configuration file: [python.d/mongodb.conf](../collectors/python.d.plugin/mongodb)|
 | mysql<br/>mariadb|python<br/>v2 or v3|Connects to multiple mysql or mariadb servers (local or remote) to collect real-time performance metrics.<br/> <br/>Requires package `python-mysqldb` (faster and preferred), or `python-pymysql`. <br/> <br/>Netdata plugin: [python.d.plugin](../collectors/python.d.plugin)<br/>plugin module: [mysql.chart.py](../collectors/python.d.plugin/mysql)<br/>configuration file: [python.d/mysql.conf](../collectors/python.d.plugin/mysql)|
-| mysql<br/>mariadb|BASH<br/>Shell Script|Connects to multiple mysql or mariadb servers (local or remote) to collect real-time performance metrics.<br/><br/>DEPRECATED IN FAVOR OF THE PYTHON ONE. It is still supplied only as an example module to shell scripting plugins.<br/> <br/>Netdata plugin: [charts.d.plugin](../collectors/charts.d.plugin#chartsdplugin)<br/>plugin module: [mysql.chart.sh](../collectors/charts.d.plugin/mysql)<br/>configuration file: [charts.d/mysql.conf](../collectors/charts.d.plugin/mysql)|
 | postgres|python<br/>v2 or v3|Connects to multiple postgres servers (local or remote) to collect real-time performance metrics.<br/> <br/>Requires package `python-psycopg2`.<br/> <br/>Netdata plugin: [python.d.plugin](../collectors/python.d.plugin)<br/>plugin module: [postgres.chart.py](../collectors/python.d.plugin/postgres)<br/>configuration file: [python.d/postgres.conf](../collectors/python.d.plugin/postgres)|
 | redis|python<br/>v2 or v3|Connects to multiple redis servers (local or remote) to collect real-time performance metrics.<br/> <br/>Netdata plugin: [python.d.plugin](../collectors/python.d.plugin)<br/>plugin module: [redis.chart.py](../collectors/python.d.plugin/redis)<br/>configuration file: [python.d/redis.conf](../collectors/python.d.plugin/redis)|
 | rethinkdb|python<br/>v2 or v3|Connects to multiple rethinkdb servers (local or remote) to collect real-time metrics.<br/> <br/>Netdata plugin: [python.d.plugin](../collectors/python.d.plugin)<br/>plugin module: [rethinkdb.chart.py](../collectors/python.d.plugin/rethinkdbs)<br/>configuration file: [python.d/rethinkdb.conf](../collectors/python.d.plugin/rethinkdbs)|
@@ -194,7 +189,6 @@ These are all the data collection plugins currently available.
 |application|language|notes|
 |:---------:|:------:|:----|
 |squid|python<br/>v2 or v3|Connects to multiple squid servers (local or remote) to collect real-time performance metrics.<br/> <br/>Netdata plugin: [python.d.plugin](../collectors/python.d.plugin)<br/>plugin module: [squid.chart.py](../collectors/python.d.plugin/squid)<br/>configuration file: [python.d/squid.conf](../collectors/python.d.plugin/squid)|
-|squid|BASH<br/>Shell Script|Connects to a squid server (local or remote) to collect real-time performance metrics.<br/><br/>DEPRECATED IN FAVOR OF THE PYTHON ONE. It is still supplied only as an example module to shell scripting plugins.<br/> <br/>Netdata plugin: [charts.d.plugin](../collectors/charts.d.plugin#chartsdplugin)<br/>plugin module: [squid.chart.sh](../collectors/charts.d.plugin/squid)<br/>configuration file: [charts.d/squid.conf](../collectors/charts.d.plugin/squid)|
 
 ---
 
@@ -275,9 +269,7 @@ These are all the data collection plugins currently available.
 |:---------:|:------:|:----|
 | dovecot|python<br/>v2 or v3|Connects to multiple dovecot servers (local or remote) to collect real-time performance metrics.<br/> <br/>Netdata plugin: [python.d.plugin](../collectors/python.d.plugin)<br/>plugin module: [dovecot.chart.py](../collectors/python.d.plugin/dovecot)<br/>configuration file: [python.d/dovecot.conf](../collectors/python.d.plugin/dovecot)|
 | exim|python<br/>v2 or v3|Charts the exim queue size.<br/> <br/>Netdata plugin: [python.d.plugin](../collectors/python.d.plugin)<br/>plugin module: [exim.chart.py](../collectors/python.d.plugin/exim)<br/>configuration file: [python.d/exim.conf](../collectors/python.d.plugin/exim)|
-| exim|BASH<br/>Shell Script|Charts the exim queue size.<br/><br/>DEPRECATED IN FAVOR OF THE PYTHON ONE. It is still supplied only as an example module to shell scripting plugins.<br/> <br/>Netdata plugin: [charts.d.plugin](../collectors/charts.d.plugin#chartsdplugin)<br/>plugin module: [exim.chart.sh](../collectors/charts.d.plugin/exim)<br/>configuration file: [charts.d/exim.conf](../collectors/charts.d.plugin/exim)|
 | postfix|python<br/>v2 or v3|Charts the postfix queue size (supports multiple queues).<br/> <br/>Netdata plugin: [python.d.plugin](../collectors/python.d.plugin)<br/>plugin module: [postfix.chart.py](../collectors/python.d.plugin/postfix)<br/>configuration file: [python.d/postfix.conf](../collectors/python.d.plugin/postfix)|
-| postfix|BASH<br/>Shell Script|Charts the postfix queue size.<br/><br/>DEPRECATED IN FAVOR OF THE PYTHON ONE. It is still supplied only as an example module to shell scripting plugins.<br/> <br/>Netdata plugin: [charts.d.plugin](../collectors/charts.d.plugin#chartsdplugin)<br/>plugin module: [postfix.chart.sh](../collectors/charts.d.plugin/postfix)<br/>configuration file: [charts.d/postfix.conf](../collectors/charts.d.plugin/postfix)|
 
 ---
 
@@ -314,9 +306,6 @@ These are all the data collection plugins currently available.
 | apps|C|`apps.plugin` collects resource usage statistics for all processes running in the system. It groups the entire process tree and reports dozens of metrics for CPU utilization, memory footprint, disk I/O, swap memory, network connections, open files and sockets, etc. It reports metrics for application groups, users and user groups.<br/> <br/>[Documentation of `apps.plugin`](../collectors/apps.plugin/).<br/> <br/>Netdata plugin: [`apps_plugin.c`](../collectors/apps.plugin)<br/>configuration file: [`apps_groups.conf`](../collectors/apps.plugin)|
 | ioping|C|Charts disk latency statistics for a directory/file/device, using the `ioping` command. A recent (probably unreleased) version of ioping is required. The plugin supplied can install it in `/usr/local`.<br/> <br/>Netdata plugin: [ioping.plugin](../collectors/ioping.plugin) (this is a shell wrapper to start ioping - once ioping is started, Netdata and ioping communicate directly - it can also install the right version of ioping)<br/>configuration file: [ioping.conf](../collectors/ioping.plugin)|
 | perf|C|`perf.plugin` collects CPU performance metrics using hardware performance monitoring units (PMU).<br/> <br/>[Documentation of `perf.plugin`](../collectors/perf.plugin/).<br/> <br/>Netdata plugin: [`perf_plugin.c`](../collectors/perf.plugin)|
-| cpu_apps|BASH<br/>Shell Script|Collects the CPU utilization of select apps.<br/><br/>DEPRECATED IN FAVOR OF `apps.plugin`. It is still supplied only as an example module to shell scripting plugins.<br/> <br/>Netdata plugin: [charts.d.plugin](../collectors/charts.d.plugin#chartsdplugin)<br/>plugin module: [cpu_apps.chart.sh](../collectors/charts.d.plugin/cpu_apps)<br/>configuration file: [charts.d/cpu_apps.conf](../collectors/charts.d.plugin/cpu_apps)|
-| load_average|BASH<br/>Shell Script|Collects the current system load average.<br/><br/>DEPRECATED IN FAVOR OF THE NETDATA INTERNAL ONE. It is still supplied only as an example module to shell scripting plugins.<br/> <br/>Netdata plugin: [charts.d.plugin](../collectors/charts.d.plugin#chartsdplugin)<br/>plugin module: [load_average.chart.sh](../collectors/charts.d.plugin/load_average)<br/>configuration file: [charts.d/load_average.conf](../collectors/charts.d.plugin/load_average)|
-| mem_apps|BASH<br/>Shell Script|Collects the memory footprint of select applications.<br/><br/>DEPRECATED IN FAVOR OF `apps.plugin`. It is still supplied only as an example module to shell scripting plugins.<br/> <br/>Netdata plugin: [charts.d.plugin](../collectors/charts.d.plugin#chartsdplugin)<br/>plugin module: [mem_apps.chart.sh](../collectors/charts.d.plugin/mem_apps)<br/>configuration file: [charts.d/mem_apps.conf](../collectors/charts.d.plugin/mem_apps)|
 | slabinfo|C|`slabinfo.plugin` collects Kernel SLAB cache metrics on Linux .<br/> <br/>[Documentation of `slabinfo.plugin`](../collectors/slabinfo.plugin/).<br/> <br/>Netdata plugin: [`slabinfo_plugin.c`](../collectors/slabinfo.plugin)|
 
 ---
@@ -325,10 +314,8 @@ These are all the data collection plugins currently available.
 
 | application|language|notes|
 |:---------:|:------:|:----|
-| cpufreq|BASH<br/>Shell Script|Collects current CPU frequency from `/sys/devices`.<br/><br/>DEPRECATED IN FAVOR OF THE PYTHON ONE. It is still supplied only as an example module to shell scripting plugins.<br/> <br/>Netdata plugin: [charts.d.plugin](../collectors/charts.d.plugin#chartsdplugin)<br/>plugin module: [cpufreq.chart.sh](../collectors/charts.d.plugin/cpufreq)<br/>configuration file: [charts.d/cpufreq.conf](../collectors/charts.d.plugin/cpufreq)|
 | IPMI|C|Collects temperatures, voltages, currents, power, fans and `SEL` events from IPMI using `libipmimonitoring`.<br/>Check [Monitoring IPMI](../collectors/freeipmi.plugin/) for more information<br/> <br/>Netdata plugin: [freeipmi.plugin](../collectors/freeipmi.plugin)<br/>configuration file: none required - to enable it, compile/install Netdata with `--enable-plugin-freeipmi`|
 | hddtemp|python<br/>v2 or v3|Connects to multiple hddtemp servers (local or remote) to collect real-time performance metrics.<br/> <br/>Netdata plugin: [python.d.plugin](../collectors/python.d.plugin)<br/>plugin module: [hddtemp.chart.py](../collectors/python.d.plugin/hddtemp)<br/>configuration file: [python.d/hddtemp.conf](../collectors/python.d.plugin/hddtemp)|
-| hddtemp|BASH<br/>Shell Script|Connects to a hddtemp server (local or remote) to collect real-time performance metrics.<br/><br/>DEPRECATED IN FAVOR OF THE PYTHON ONE. It is still supplied only as an example module to shell scripting plugins.<br/> <br/>Netdata plugin: [charts.d.plugin](../collectors/charts.d.plugin#chartsdplugin)<br/>plugin module: [hddtemp.chart.sh](../collectors/charts.d.plugin/hddtemp)<br/>configuration file: [charts.d/hddtemp.conf](../collectors/charts.d.plugin/hddtemp)|
 | sensors|BASH<br/>Shell Script|Collects sensors values from files in `/sys`.<br/><br/>DEPRECATED IN FAVOR OF THE PYTHON ONE. It is still supplied only as an example module to shell scripting plugins.<br/> <br/>Netdata plugin: [charts.d.plugin](../collectors/charts.d.plugin#chartsdplugin)<br/>plugin module: [sensors.chart.sh](../collectors/charts.d.plugin/sensors)<br/>configuration file: [charts.d/sensors.conf](../collectors/charts.d.plugin/sensors)|
 | sensors|python<br/>v2 or v3|Uses `lm-sensors` to collect sensor data.<br/> <br/>Netdata plugin: [python.d.plugin](../collectors/python.d.plugin)<br/>plugin module: [sensors.chart.py](../collectors/python.d.plugin/sensors)<br/>configuration file: [python.d/sensors.conf](../collectors/python.d.plugin/sensors)|
 | smartd_log|python<br/>v2 or v3|Collects the S.M.A.R.T attributes from `smartd` log files.<br/> <br/>Netdata plugin: [python.d.plugin](../collectors/python.d.plugin)<br/>plugin module: [smartd_log.chart.py](../collectors/python.d.plugin/smartd_log)<br/>configuration file: [python.d/smartd_log.conf](../collectors/python.d.plugin/smartd_log)|
diff --git a/docs/generator/buildyaml.sh b/docs/generator/buildyaml.sh
index a68c021351..047fbe3e08 100755
--- a/docs/generator/buildyaml.sh
+++ b/docs/generator/buildyaml.sh
@@ -260,20 +260,7 @@ echo -ne "        - BASH:
                 - 'collectors/charts.d.plugin/nut/README.md'
                 - 'collectors/charts.d.plugin/opensips/README.md'
             - Obsolete Modules:
-                - 'collectors/charts.d.plugin/mem_apps/README.md'
-                - 'collectors/charts.d.plugin/postfix/README.md'
-                - 'collectors/charts.d.plugin/tomcat/README.md'
                 - 'collectors/charts.d.plugin/sensors/README.md'
-                - 'collectors/charts.d.plugin/cpu_apps/README.md'
-                - 'collectors/charts.d.plugin/squid/README.md'
-                - 'collectors/charts.d.plugin/nginx/README.md'
-                - 'collectors/charts.d.plugin/hddtemp/README.md'
-                - 'collectors/charts.d.plugin/cpufreq/README.md'
-                - 'collectors/charts.d.plugin/mysql/README.md'
-                - 'collectors/charts.d.plugin/exim/README.md'
-                - 'collectors/charts.d.plugin/apache/README.md'
-                - 'collectors/charts.d.plugin/load_average/README.md'
-                - 'collectors/charts.d.plugin/phpfpm/README.md'
 "
 
 navpart 3 collectors/apps.plugin