use more variables instead of hard-coding (fixes #3)

README.md

@@ -20,15 +20,45 @@ Therefore you can use the same playbook for multiple servers and activate the ne
 
 ### Borgbakup
 If you want to configure borgbackup backups, these variables need to be set:
-- `borgbackup_host`: Hostname used by the borgbackup script
-- `borgbackup_sub`: Sub-Account ID used by the borgbackup script
+- `borgbackup_passphrase`: Passphrase of the borgbackup repo
+- `borgbackup_repo`: Repository path (e.g. `ssh://$user@$hostname/$path`)
+- `borgbackup_hostname`: Hostname to prefix the snapshots
 
-Attention: You still need to setup the borgbackup repository manually.  
+Optional configuration:
+- `borgbackup_ssh_id`: Path to the used ssh id (default: `/home/{{ ansible_user_id }}/.ssh/id_ed25519`)
+
+Attention: You still need to setup the borgbackup repository manually.
+
+### Caddy
+Mandatory variable:
+- `caddy_email`: Email address to use for getting let's encrypt certificates
+
+### Cronmails
+Mandatory variable:
+- `cron_email`: Sender email address used by cron
+
+### DynDNS
+This task and it's configuration files might be quite specific for the [davd/docker-ddns](https://github.com/dprandzioch/docker-ddns) docker container.
+
+Mandatory variables:
+- `ddns_server_domain`: Domain name of the DynDNS server
+- `ddns_passphrase`: Passphrase for updating dynDNS entries
+- `ddns_domain`: Domain where the host's entries are created as `$hostname.$ddns_domain`
 
 ### Telegraf
+Mandatory variables:
+- `telegraf_server_url`: URL of the influxDB server, e.g. `https://example.com:8086`
+- `telegraf_server_user`: Username of the influxDB user
+- `telegraf_server_passwd`: Password of the influxDB user
+
 Telegraf is configured with basic host telemetry by default. You can add more features, if you like:
-- `telegraf_docker`: Set to `true`, if docker telemetry should be collected
-- `telegraf_snmp_fra80`: Set to `true`, if SNMP telemetry of the fra80 network should be collected
+- `telegraf_docker`: Set to `true`, if docker telemetry should be collected (uses file from `telegraf_docker_file`)
+- `telegraf_snmp`: Set to `true`, if SNMP telemetry should be collected (uses file from `telegraf_snmp_file`)
+- `telegraf_docker_file`: filename of the docker telegraf config part in `{{role_path}}/templates` (default `telegraf-docker.conf`).
+- `telegraf_snmp_file`: filename of the SNMP telegraf config part in `{{role_path}}/templates` (default `telegraf-SNMP.conf`).
+
+Optional settings:
+- `telegraf_interval`: Data sampling interval (default `300s`)
 
 
 Dependencies