clarify documentation

* align url parameter to the ejabberd example
* update virtualenv command
* remove influxdb service requirement from service template

README.md

@@ -19,46 +19,19 @@ apt install python-virtualenv
 # Arch
 pacman -S python-virtualenv
 
-# mkdir venv
-virtualenv -p python3 venv/ -r requirements.txt
+# create a venv folder inside the cloned repository
+mkdir venv
+virtualenv -p python3 venv/
+
+source ./venv/bin/activate
+pip install -r requirements.txt
 ```
 
 #### ejabberd
-It is required to control a user account eligible to operate the tools with. We strongly recommend to use a dedicated
-user to operate the api and to secure this account with a specifically strong password.
+To operate the api it is required to provide a user account eligible to issue api commands. We strongly recommend to use
+a dedicated user to operate the api and to secure this account with a specifically strong password.
 
 ### configuration
-#### systemd service
-To properly operate the metrics exporter tools, we created some systemd templates, to simplify the whole process.
-If the `ejabberd-metrics.yml` file is not accessible for the user`nobody:nogroup`, it is required to update the `User`
-and `Group` definitions inside the service file.
-If a virtualenv is used, it is required to update the `Environment=PATH` to include the `venv/bin` directory created
-earlier.
-
-```systemd
-[Unit]
-Description=ejabberd influxdb exporter
-
-[Service]
-Type=simple
-
-# this strongly depends on the ejabberd-metrics.yml permissions
-User=nobody
-Group=nogroup
-
-ExecStart=/opt/ejabberd-metrics/influx.py
-Restart=always
-RestartSec=5s
-
-# if the virtualenv is used PATH needs to customized
-Environment=PATH=/opt/ejabberd-metrics/venv/bin:/usr/bin:/usr/local/bin
-
-[Install]
-WantedBy=multi-user.target
-```
-
-Another possible solution would be to edit the `ExecStart` paramter to include the virtualenv Python intepreter.
-
 #### ejabberd: api permissions
 These configurations options first add the `mod_http_api` listener. Additionally the user `api_user@magicbroccoli.de` is
 added to the `acl` group, thus enabling him to access the `mod_http_api` configured in the `api_permissions` block.
@@ -102,7 +75,39 @@ api_permissions:
 The `ejabberd-metrics.yml` file is the central configuration file which is used by all current and future tools inside
 this repository.
 
-We provide a `ejabberd-metrics.yml.default` file which lists and explains which parameters should be set.
+We provide an `ejabberd-metrics.yml.default` file, listing all possible and potentially necessary parameters. The final
+configuration file should be located at `/etc/ejabberd-metrics.yml`.
+
+#### systemd service
+To properly operate the metrics exporter tools, we created some systemd service templates, to simplify the whole
+process. If the `ejabberd-metrics.yml` file is not accessible for the user`nobody:nogroup`, it is required to update the
+`User` and `Group` definitions inside the service file. 
+If a virtualenv is used, it is required to update the `Environment=PATH` to include the `venv/bin` directory created
+earlier.
+
+```systemd
+[Unit]
+Description=ejabberd influxdb exporter
+
+[Service]
+Type=simple
+
+# this strongly depends on the ejabberd-metrics.yml permissions
+User=nobody
+Group=nogroup
+
+ExecStart=/opt/ejabberd-metrics/influx.py
+Restart=always
+RestartSec=5s
+
+# if the virtualenv is used PATH needs to customized
+Environment=PATH=/opt/ejabberd-metrics/venv/bin:/usr/bin:/usr/local/bin
+
+[Install]
+WantedBy=multi-user.target
+```
+
+Another possible solution would be to edit the `ExecStart` parameter to include the virtualenv Python intepreter.
 
 ### error codes
 Lookup table for all custom error codes.

contrib/init/linux-systemd/ejabberd-influxdb.service

@@ -1,8 +1,7 @@
 [Unit]
 Description=ejabberd influxdb exporter
 Documentation=https://dev.sum7.eu/sum7/ejabberd-tools/-/blob/master/README.md
-After=influxdb.service
-Requires=ejabberd.service influxdb.service
+Requires=ejabberd.service
 
 [Service]
 Type=simple

ejabberd-metrics.yml.default

@@ -1,6 +1,6 @@
 ---
 # endpoint url
-url: "http://[::1]:5280/api"
+url: "http://127.0.0.1:5280/api"
 
 # user credentials to the endpoint url
 login: