Split plugins to individual packages for DEB/RPM packaging. (#13927)

* Update and normalize plugin package descriptions.

This ensures they have accurate and cnocise descriptions of what they
do, and that the descriptions are the same for both the RPM and DEB
packages.

* Split NFACCT plugin to it’s own package.

Most users do not actually use it, so make life easier for them by
reducing our dependency footprint and cutting down on how much they need
to download.

* Split charts.d.plugin to it’s own package.

* Split eBPF plugin and code to their own packages.

The code is in a separate package to simplify handling updates for it
separately from the main agent code in the future.

The eBPF plugin will still be installed by default in most cases when
installing the Netdata Agent

* Split python.d plugin to it’s own package.

The python.d plugin will still be installed by default in most cases
when installing the Netdata Agent

* Split go.d plugin to it’s own package.

The go.d plugin will still be installed by default in most cases when
installing the Netdata Agent

* Split apps.plugin to it’s own package

The apps plugin will still be installed by default in most cases when
installing the Netdata Agent

* Properly split out postinst scripts for DEB packages.

We should be modifying permissions and filecaps for plugins in the
specific packages that install those plugins.

* Clean up main files section in RPM spec file.

This should get rid of the duplicate files warnings, as well as probably
producing a more technically correct RPM.

* Properly format DEB package descriptions.

They should be folded at 76 characters.

* Fix dependencies for split RPM plugin packages.

* Fix most duplicate file warnings for RPM builds.

* Split slabinfo plugin to it’s own package.

* Clean up RPM conditional build.

All platforms we build RPMs for have both netns and systemd support, so
quit supporting platforms that don’t in our spec file.

* Include loopsleepms.sh.inc in RPM package.

* Fix packaging of nfacct plugin.

* Skip building NFACCT plugin on RHEL clones.

They lack the required dependencies.

* Split perf.plugin to it’s own package.

Also, start using CAP_PERFMON for it in RPM packages when available.

* Fix typo in DEB postinstall scripts.

* Fix issues with ebpf bundling scripts.

They don’t need to preserve permissions, and choosing not to do so makes
them work more reliably in a number of cases.

* Improve dependency handling of secondary plugins.

* Fix dependency handling.

* Match ebpf code files more specifically in RPM spec file.

* Fix branding and dependencies for RPM packages.

- Change the eBPF plugin legacy code package name and description to
  reflect what it actually is.
- Properly have the new plugin packages conflict with the older Netdata
  packages. This is needed for updates to work cleanly.
- Only require the eBPF legacy code on older systems that need it.

* Fix branding and dependencies for DEB packages.

- Change the eBPF plugin legacy code package name and description to
  reflect what it actually is.
- Properly have the new plugin packages conflict with the older Netdata
  packages. This is needed for updates to work cleanly.

* Update docs for non-default plugins.

* Have docs link back to package document.

* Address review feedback.

* Explicitly suggest plugins we are not including by default.

This does not pull them in by default, but does make it easier for users
to discover them.

* Explicitly pull in default plugins on CentOS 7.

* Fix broken merge of netdata spec file.

* Resolve typo in kickstart script.

* Explicitly disable FreeIPMI and NFACCT in RPMs if they are not available.

* Fix RPM changelog.

* Fix conditional plugin handling.

* Fix disabling FreeIPMI on Amazon Linux.

* Split new debugfs plugin to separate package.

* Install debugfs plugin by default.

10 files changed, 27 insertions, 2 deletions

diff --git a/collectors/charts.d.plugin/README.md b/collectors/charts.d.plugin/README.md
index 3e4edf5625..97c2446fa9 100644
--- a/collectors/charts.d.plugin/README.md
+++ b/collectors/charts.d.plugin/README.md
@@ -17,6 +17,8 @@ memory, collecting data with as little overheads as possible
 `charts.d.plugin` looks for scripts in `/usr/lib/netdata/charts.d`.
 The scripts should have the filename suffix: `.chart.sh`.
 
+By default, `charts.d.plugin` is not included as part of the install when using [our official native DEB/RPM packages](https://github.com/netdata/netdata/blob/master/packaging/installer/methods/packages.md). You can install it by installing the `netdata-plugin-chartsd` package.
+
 ## Configuration
 
 `charts.d.plugin` itself can be [configured](https://github.com/netdata/netdata/blob/master/docs/configure/nodes.md#use-edit-config-to-edit-configuration-files) using the configuration file `/etc/netdata/charts.d.conf`. This file is also a BASH script.
diff --git a/collectors/charts.d.plugin/ap/README.md b/collectors/charts.d.plugin/ap/README.md
index bc7460a28f..339ad13751 100644
--- a/collectors/charts.d.plugin/ap/README.md
+++ b/collectors/charts.d.plugin/ap/README.md
@@ -85,6 +85,8 @@ Station 40:b8:37:5a:ed:5e (on wlan0)
 
 ## Configuration
 
+If using [our official native DEB/RPM packages](https://github.com/netdata/netdata/blob/master/packaging/installer/methods/packages.md), make sure `netdata-plugin-chartsd` is installed.
+
 Edit the `charts.d/ap.conf` configuration file using `edit-config` from the Netdata [config
 directory](https://github.com/netdata/netdata/blob/master/docs/configure/nodes.md), which is typically at `/etc/netdata`.
 
diff --git a/collectors/charts.d.plugin/apcupsd/README.md b/collectors/charts.d.plugin/apcupsd/README.md
index 6934d59c03..00e9697dc8 100644
--- a/collectors/charts.d.plugin/apcupsd/README.md
+++ b/collectors/charts.d.plugin/apcupsd/README.md
@@ -13,6 +13,8 @@ Monitors different APC UPS models and retrieves status information using `apcacc
 
 ## Configuration
 
+If using [our official native DEB/RPM packages](https://github.com/netdata/netdata/blob/master/packaging/installer/methods/packages.md), make sure `netdata-plugin-chartsd` is installed.
+
 Edit the `charts.d/apcupsd.conf` configuration file using `edit-config` from the Netdata [config
 directory](https://github.com/netdata/netdata/blob/master/docs/configure/nodes.md), which is typically at `/etc/netdata`.
 
diff --git a/collectors/charts.d.plugin/libreswan/README.md b/collectors/charts.d.plugin/libreswan/README.md
index a20eb86c0a..b6eeb0180c 100644
--- a/collectors/charts.d.plugin/libreswan/README.md
+++ b/collectors/charts.d.plugin/libreswan/README.md
@@ -24,6 +24,8 @@ The following charts are created, **per tunnel**:
 
 ## Configuration
 
+If using [our official native DEB/RPM packages](https://github.com/netdata/netdata/blob/master/packaging/installer/methods/packages.md), make sure `netdata-plugin-chartsd` is installed.
+
 Edit the `charts.d/libreswan.conf` configuration file using `edit-config` from the Netdata [config
 directory](https://github.com/netdata/netdata/blob/master/docs/configure/nodes.md), which is typically at `/etc/netdata`.
 
diff --git a/collectors/charts.d.plugin/nut/README.md b/collectors/charts.d.plugin/nut/README.md
index 4488254451..4608ce3e1a 100644
--- a/collectors/charts.d.plugin/nut/README.md
+++ b/collectors/charts.d.plugin/nut/README.md
@@ -53,6 +53,8 @@ The following charts will be created:
 
 ## Configuration
 
+If using [our official native DEB/RPM packages](https://github.com/netdata/netdata/blob/master/packaging/installer/methods/packages.md), make sure `netdata-plugin-chartsd` is installed.
+
 Edit the `charts.d/nut.conf` configuration file using `edit-config` from the Netdata [config
 directory](https://github.com/netdata/netdata/blob/master/docs/configure/nodes.md), which is typically at `/etc/netdata`.
 
diff --git a/collectors/charts.d.plugin/opensips/README.md b/collectors/charts.d.plugin/opensips/README.md
index c278b53a02..1d73221405 100644
--- a/collectors/charts.d.plugin/opensips/README.md
+++ b/collectors/charts.d.plugin/opensips/README.md
@@ -11,6 +11,8 @@ learn_rel_path: "Integrations/Monitor/Networking"
 
 ## Configuration
 
+If using [our official native DEB/RPM packages](https://github.com/netdata/netdata/blob/master/packaging/installer/methods/packages.md), make sure `netdata-plugin-chartsd` is installed.
+
 Edit the `charts.d/opensips.conf` configuration file using `edit-config` from the Netdata [config
 directory](https://github.com/netdata/netdata/blob/master/docs/configure/nodes.md), which is typically at `/etc/netdata`.
 
diff --git a/collectors/charts.d.plugin/sensors/README.md b/collectors/charts.d.plugin/sensors/README.md
index 2601a2b65f..0dbe96225b 100644
--- a/collectors/charts.d.plugin/sensors/README.md
+++ b/collectors/charts.d.plugin/sensors/README.md
@@ -21,13 +21,15 @@ One chart for every sensor chip found and each of the above will be created.
 
 ## Enable the collector
 
+If using [our official native DEB/RPM packages](https://github.com/netdata/netdata/blob/master/packaging/installer/methods/packages.md), make sure `netdata-plugin-chartsd` is installed.
+
 The `sensors` collector is disabled by default.
 
-To enable the collector, you need to edit the configuration file of `charts.d/sensors.conf`. You can do so by using the `edit config` script.  
+To enable the collector, you need to edit the configuration file of `charts.d/sensors.conf`. You can do so by using the `edit config` script.
 
 > ### Info
 >
-> To edit configuration files in a safe way, we provide the [`edit config` script](https://github.com/netdata/netdata/blob/master/docs/configure/nodes.md#use-edit-config-to-edit-configuration-files) located in your [Netdata config directory](https://github.com/netdata/netdata/blob/master/docs/configure/nodes.md#the-netdata-config-directory) (typically is `/etc/netdata`) that creates the proper file and opens it in an editor automatically.  
+> To edit configuration files in a safe way, we provide the [`edit config` script](https://github.com/netdata/netdata/blob/master/docs/configure/nodes.md#use-edit-config-to-edit-configuration-files) located in your [Netdata config directory](https://github.com/netdata/netdata/blob/master/docs/configure/nodes.md#the-netdata-config-directory) (typically is `/etc/netdata`) that creates the proper file and opens it in an editor automatically.
 > It is recommended to use this way for configuring Netdata.
 >
 > Please also note that after most configuration changes you will need to [restart the Agent](https://github.com/netdata/netdata/blob/master/docs/configure/start-stop-restart.md) for the changes to take effect.
diff --git a/collectors/nfacct.plugin/README.md b/collectors/nfacct.plugin/README.md
index e8502236fe..ae6597a409 100644
--- a/collectors/nfacct.plugin/README.md
+++ b/collectors/nfacct.plugin/README.md
@@ -13,6 +13,11 @@ learn_rel_path: "Integrations/Monitor/Networking"
 
 ## Prerequisites
 
+If you are using [our official native DEB/RPM packages](https://github.com/netdata/netdata/blob/master/packaging/installer/methods/packages.md), install the
+`netdata-plugin-nfacct` package using your system package manager.
+
+If you built Netdata locally:
+
 1.  install `libmnl-dev` and `libnetfilter-acct-dev` using the package manager of your system.
 
 2.  re-install Netdata from source. The installer will detect that the required libraries are now available and will also build `netdata.plugin`.
diff --git a/collectors/perf.plugin/README.md b/collectors/perf.plugin/README.md
index e519be9c47..a8bd4b0e5e 100644
--- a/collectors/perf.plugin/README.md
+++ b/collectors/perf.plugin/README.md
@@ -14,6 +14,9 @@ the `perf_event_open()` system call.
 
 ## Important Notes
 
+If you are using [our official native DEB/RPM packages](https://github.com/netdata/netdata/blob/master/packaging/installer/methods/packages.md), you will need to install
+the `netdata-plugin-perf` package using your system package manager.
+
 Accessing hardware PMUs requires root permissions, so the plugin is setuid to root.
 
 Keep in mind that the number of PMUs in a system is usually quite limited and every hardware monitoring
diff --git a/collectors/slabinfo.plugin/README.md b/collectors/slabinfo.plugin/README.md
index e0abaff807..abcbe1e3fe 100644
--- a/collectors/slabinfo.plugin/README.md
+++ b/collectors/slabinfo.plugin/README.md
@@ -18,6 +18,9 @@ Each internal structure (process, file descriptor, inode...) is stored within a
 The plugin is disabled by default because it collects and displays a huge amount of metrics.
 To enable it set `slabinfo = yes` in the `plugins` section of the `netdata.conf` configuration file.
 
+If you are using [our official native DEB/RPM packages](https://github.com/netdata/netdata/blob/master/packaging/installer/methods/packages.md), you will additionally need to install the `netdata-plugin-slabinfo`
+package using your system package manager.
+
 There is currently no configuration needed for the plugin itself.
 
 As `/proc/slabinfo` is only readable by root, this plugin is setuid root.