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
+
+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

defaults/main.yml

@@ -1,7 +1,10 @@
 ---
 # defaults file for server
 
+borgbackup_ssh_id: "/home/{{ ansible_user_id }}/.ssh/id_ed25519"
+
+telegraf_interval: "300s"
 telegraf_docker_file: "telegraf-docker.conf"
-telegraf_snmp_fra80_file: "telegraf-SNMP_fra80.conf"
+telegraf_snmp_file: "telegraf-SNMP.conf"
 
 dockercompose_use_pip: false

files/ddns-namecheap.sh

@@ -1,6 +0,0 @@
-#!/bin/bash
-passwd='dyndnshosts'
-hostname=$(hostname | tr '[:upper:]' '[:lower:]')
-domain=jtbx.space
-
-/usr/bin/curl -4 -s "http://dynamicdns.park-your-domain.com/update?host=$hostname&domain=$domain&password=$passwd" > /dev/null

tasks/borgbackup-Debian-stretch.yml

@@ -1,8 +1,9 @@
 ---
 # Server/Borgbackup: Install and Setup Borgbackup Backup Crobjob - Debian Stretch Version
 # Variables (must be set!):
-# - borgbackup_host
-# - borgbackup_sub
+# - borgbackup_passphrase
+# - borgbackup_repo
+# - borgbackup_hostname
 
 # For Debian Stretch, use a newer package version from backports
 
@@ -30,6 +31,7 @@
     update_cache: yes
     cache_valid_time: 3600
   when:
-    - borgbackup_host is defined
-    - borgbackup_sub is defined
+    - borgbackup_passphrase is defined
+    - borgbackup_repo is defined
+    - borgbackup_hostname is defined
     - ansible_distribution_release == 'stretch'

tasks/borgbackup-Debian.yml

@@ -1,8 +1,9 @@
 ---
 # Server/Borgbackup: Install and Setup Borgbackup Backup Crobjob - Default Debian Version
 # Variables (must be set!):
-# - borgbackup_host
-# - borgbackup_sub
+# - borgbackup_passhrase
+# - borgbackup_repo
+# - borgbackup_hostname
 
 # For all other Debian versions, simply install borgbackup
 
@@ -12,6 +13,7 @@
     name: borgbackup
     state: present
   when:
-    - borgbackup_host is defined
-    - borgbackup_sub is defined
+    - borgbackup_passphrase is defined
+    - borgbackup_repo is defined
+    - borgbackup_hostname is defined
     - ansible_distribution_release != 'stretch'

tasks/borgbackup.yml

@@ -1,8 +1,9 @@
 ---
 # Server/Borgbackup: Install and Setup Borgbackup Backup Crobjob
 # Variables (must be set!):
-# - borgbackup_host
-# - borgbackup_sub
+# - borgbackup_passphrase
+# - borgbackup_repo
+# - borgbackup_hostname
 
 - name: borgbackup - Install
   include_tasks: "{{ item }}"
@@ -22,8 +23,9 @@
     group: "{{ ansible_user_id }}"
     mode: 0775
   when:
-    - borgbackup_host is defined
-    - borgbackup_sub is defined
+    - borgbackup_passphrase is defined
+    - borgbackup_repo is defined
+    - borgbackup_hostname is defined
 - name: borgbackup - Run Borgbackup script at 1:00 daily
   become: yes
   cron:
@@ -32,26 +34,24 @@
     hour: "1"
     job: "/usr/local/bin/borgbackup.sh"
   when:
-    - borgbackup_host is defined
-    - borgbackup_sub is defined
+    - borgbackup_passphrase is defined
+    - borgbackup_repo is defined
+    - borgbackup_hostname is defined
 
 # safeguard, if the host variables were removed
-- name: borgbackup - Remove Borgbackup script if no borgbackup config
-  become: yes
-  file:
-    path: /usr/local/bin/borgbackup.sh
-    state: absent
-  when:
-    - borgbackup_host is not defined
-    - borgbackup_sub is not defined
-- name: borgbackup - Remove Cronjob if no borgbackup config
-  become: yes
-  cron:
-    name: "Create Backup"
-    minute: "0"
-    hour: "1"
-    job: "/usr/local/bin/borgbackup.sh"
-    state: absent
-  when:
-    - borgbackup_host is not defined
-    - borgbackup_sub is not defined
+- name: borgbackup - Uninstall
+  block:
+    - name: borgbackup - Remove Borgbackup script if no borgbackup config
+      become: yes
+      file:
+        path: /usr/local/bin/borgbackup.sh
+        state: absent
+    - name: borgbackup - Remove Cronjob if no borgbackup config
+      become: yes
+      cron:
+        name: "Create Backup"
+        minute: "0"
+        hour: "1"
+        job: "/usr/local/bin/borgbackup.sh"
+        state: absent
+  when: (borgbackup_passphrase is not defined) or (borgbackup_repo is not defined) or (borgbackup_hostname is not defined)

tasks/caddy-setup.yml

@@ -30,8 +30,8 @@
     mode: 0555
 - name: caddyserver - Copy Caddy systemd service file
   become: yes
-  copy:
-    src: "{{ role_path }}/files/caddy.service"
+  template:
+    src: "{{ role_path }}/templates/caddy.service"
     dest: /etc/systemd/system/caddy.service
     owner: root
     group: root

tasks/caddyserver.yml

@@ -7,3 +7,4 @@
 
 - name: caddyserver - Setup caddy server
   include_tasks: "caddy-setup.yml"
+  when: caddy_email is defined

tasks/cronmails.yml

@@ -46,4 +46,4 @@
   cron:
     name: MAILTO
     env: yes
-    value: "device-{{ ansible_hostname }}@jtbx.de"
+    value: "{{ cron_email }}"

tasks/dyndns.yml

@@ -7,18 +7,18 @@
     name: curl
     state: present
 
-- name: dyndns - Copy hosts.jtbx.de dynDNS script
+- name: dyndns - Copy dynDNS script
   become: yes
-  copy:
-    src: "{{ role_path }}/files/ddns-hosts.sh"
+  template:
+    src: "{{ role_path }}/templates/ddns-hosts.sh"
     dest: /usr/local/bin/ddns-hosts.sh
     owner: "{{ ansible_user_id }}"
     group: "{{ ansible_user_id }}"
     mode: 0775
-- name: dyndns - Create cronjob for hosts.jtbx.de dynDNS script
+- name: "dyndns - Create cronjob for {{ ddns_domain }} dynDNS script"
   become: yes
   cron:
-    name: "hosts.jtbx.de dynDNS"
+    name: "{{ ddns_domain }} dynDNS"
     minute: "*/5"
     hour: "*"
     job: "/usr/local/bin/ddns-hosts.sh > /dev/null"

tasks/telegraf.yml

@@ -1,7 +1,7 @@
 ---
 # Server/Telegraf: Install and Setup Telegraf Monitoring
 # Variables:
-# - telegraf_snmp_fra80: boolean, enable SNMP monitoring for the fra80 network
+# - telegraf_snmp: boolean, enable SNMP monitoring for the fra80 network
 # - telegraf_docker: boolean, enable docker monitoring
 
 - name: telegraf - Install apt-transport-https

templates/borgbackup.sh

@@ -4,10 +4,9 @@
 #   pass -v --stats to show more information
 #   pass --list --filter AME to show all fiels Added Modified or with Error
 
-#export BORG_RSH='ssh -i /home/jannik/.ssh/id_rsa'
-export BORG_RSH='ssh -i /home/jannik/.ssh/id_ed25519'
-export BORG_PASSPHRASE='borgbackup.{{ borgbackup_host }}@hetznerbx'
-export BORG_REPO='ssh://u182062-sub{{ borgbackup_sub }}@u182062.your-storagebox.de:23/./borg'
+export BORG_RSH='ssh -i {{ borgbackup_ssh_id }}'
+export BORG_PASSPHRASE='{{ borgbackup_passphrase }}'
+export BORG_REPO='{{ borgbackup_repo }}'
 
 # some helpers and error handling:
 info() { printf "\n%s %s\n\n" "$( date )" "$*" >&2; }
@@ -33,7 +32,7 @@ borg create                                 \
     --exclude '/var/lib/lxcfs'              \
     --exclude '/var/log/*'                  \
                                             \
-    $BORG_REPO::'{{ borgbackup_host }}-{now:%Y%m%d_%H%M}' \
+    $BORG_REPO::'{{ borgbackup_hostname }}-{now:%Y%m%d_%H%M}' \
     /etc                                    \
     /var                                    \
     /root                                   \
@@ -44,7 +43,7 @@ backup_exit=$?
 
 # Prune old backups: keep 7 daily, 3 weekly and 2 monthly (3 months total)
 borg prune                          \
-    --prefix '{{ borgbackup_host }}-' \
+    --prefix '{{ borgbackup_hostname }}-' \
     --keep-daily    7               \
     --keep-weekly   3               \
     --keep-monthly  2

templates/caddy.service

@@ -12,7 +12,7 @@ Group=www-data
 Environment=CADDYPATH=/etc/ssl/caddy
 
 PIDFile=/run/caddy.pid
-ExecStart=/usr/local/bin/caddy -log stdout -agree -email=code@jannikbeyerstedt.de -conf=/etc/caddy/Caddyfile -root=/var/tmp
+ExecStart=/usr/local/bin/caddy -log stdout -agree -email={{ caddy_email }} -conf=/etc/caddy/Caddyfile -root=/var/tmp
 ExecReload=/bin/kill -USR1 $MAINPID
 
 KillMode=mixed

templates/ddns-hosts.sh

@@ -1,5 +1,5 @@
 #!/bin/sh
-passwd='dyndnshosts'
+passwd='{{ ddns_passphrase }}'
 hostname=$(hostname | tr '[:upper:]' '[:lower:]')
 
 platform='unknown'
@@ -31,7 +31,7 @@ else
 fi
 
 # API always returns 200, so check for response payload to begin with {"Success":true,
-url="https://dyndns.jtbx.de/update?secret=$passwd&domain=$hostname&addr=$ip4addr"
+url="https://{{ ddns_server_domain }}/update?secret=$passwd&domain=$hostname&addr=$ip4addr"
 statuscode=$(curl -s $url)
 case "$statuscode" in
   {\"Success\":true*) echo "IPv4 Success" ;;
@@ -43,7 +43,7 @@ if [ $ip6addr ]; then
   echo "Updating IPv6 DNS entry..."
 
   # API always returns 200, so check for response payload to begin with {"Success":true,
-  url="https://dyndns.jtbx.de/update?secret=$passwd&domain=$hostname&addr=$ip6addr"
+  url="https://{{ ddns_server_domain }}/update?secret=$passwd&domain=$hostname&addr=$ip6addr"
   statuscode=$(curl -s $url)
   case "$statuscode" in
     {\"Success\":true*) echo "IPv6 Success" ;;

templates/telegraf.conf

@@ -1,9 +1,9 @@
 [agent]
-  interval = "300s"
+  interval = "{{ telegraf_interval }}"
   hostname = ""
 
 [[outputs.influxdb]]
-  urls = ["https://influx.jtbx.de:65086"]
+  urls = ["{{ telegraf_server_url }}"]
   database = "servers"
   skip_database_creation = true
 
@@ -12,8 +12,8 @@
 
   ## Write timeout (for the InfluxDB client), formatted as a string.
   timeout = "5s"
-  username = "servers"
-  password = "Servers-w.influx@home"
+  username = "{{ telegraf_server_user }}"
+  password = "{{ telegraf_server_passwd }}"
 
 
 # Read metrics about cpu usage
@@ -65,8 +65,8 @@
 {% endif %}
 
 
-{% if telegraf_snmp_fra80|default(false)|bool %}
-{% include telegraf_snmp_fra80_file %}
+{% if telegraf_snmp|default(false)|bool %}
+{% include telegraf_snmp_file %}
 {% endif %}