initial commit

.drone.jsonnet

@@ -0,0 +1,137 @@
+local PipelineLinting = {
+  kind: 'pipeline',
+  name: 'linting',
+  platform: {
+    os: 'linux',
+    arch: 'amd64',
+  },
+  steps: [
+    {
+      name: 'ansible-later',
+      image: 'thegeeklab/ansible-later',
+      commands: [
+        'ansible-later',
+      ],
+    },
+  ],
+  trigger: {
+    ref: ['refs/heads/master', 'refs/tags/**', 'refs/pull/**'],
+  },
+};
+
+local PipelineDeployment(scenario='centos7') = {
+  kind: 'pipeline',
+  name: 'testing-' + scenario,
+  platform: {
+    os: 'linux',
+    arch: 'amd64',
+  },
+  concurrency: {
+    limit: 1,
+  },
+  workspace: {
+    base: '/drone/src',
+    path: '${DRONE_REPO_NAME}',
+  },
+  steps: [
+    {
+      name: 'ansible-molecule',
+      image: 'thegeeklab/molecule:3',
+      environment: {
+        HCLOUD_TOKEN: { from_secret: 'hcloud_token' },
+      },
+      commands: [
+        'molecule test -s ' + scenario,
+      ],
+    },
+  ],
+  depends_on: [
+    'linting',
+  ],
+  trigger: {
+    ref: ['refs/heads/master', 'refs/tags/**'],
+  },
+};
+
+local PipelineDocumentation = {
+  kind: 'pipeline',
+  name: 'documentation',
+  platform: {
+    os: 'linux',
+    arch: 'amd64',
+  },
+  steps: [
+    {
+      name: 'generate',
+      image: 'thegeeklab/ansible-doctor',
+      environment: {
+        ANSIBLE_DOCTOR_LOG_LEVEL: 'INFO',
+        ANSIBLE_DOCTOR_FORCE_OVERWRITE: true,
+        ANSIBLE_DOCTOR_EXCLUDE_FILES: 'molecule/',
+        ANSIBLE_DOCTOR_TEMPLATE: 'hugo-book',
+        ANSIBLE_DOCTOR_ROLE_NAME: '${DRONE_REPO_NAME#*.}',
+        ANSIBLE_DOCTOR_OUTPUT_DIR: '_docs/',
+      },
+    },
+    {
+      name: 'publish',
+      image: 'plugins/gh-pages',
+      settings: {
+        remote_url: 'https://gitea.rknet.org/ansible/${DRONE_REPO_NAME}',
+        netrc_machine: 'gitea.rknet.org',
+        username: { from_secret: 'gitea_username' },
+        password: { from_secret: 'gitea_token' },
+        pages_directory: '_docs/',
+        target_branch: 'docs',
+      },
+      when: {
+        ref: ['refs/heads/master'],
+      },
+    },
+  ],
+  trigger: {
+    ref: ['refs/heads/master', 'refs/tags/**', 'refs/pull/**'],
+  },
+  depends_on: [
+    'testing-centos7',
+  ],
+};
+
+local PipelineNotification = {
+  kind: 'pipeline',
+  name: 'notification',
+  platform: {
+    os: 'linux',
+    arch: 'amd64',
+  },
+  clone: {
+    disable: true,
+  },
+  steps: [
+    {
+      name: 'matrix',
+      image: 'plugins/matrix',
+      settings: {
+        homeserver: { from_secret: 'matrix_homeserver' },
+        roomid: { from_secret: 'matrix_roomid' },
+        template: 'Status: **{{ build.status }}**<br/> Build: [{{ repo.Owner }}/{{ repo.Name }}]({{ build.link }}) ({{ build.branch }}) by {{ build.author }}<br/> Message: {{ build.message }}',
+        username: { from_secret: 'matrix_username' },
+        password: { from_secret: 'matrix_password' },
+      },
+    },
+  ],
+  depends_on: [
+    'documentation',
+  ],
+  trigger: {
+    status: ['success', 'failure'],
+    ref: ['refs/heads/master', 'refs/tags/**'],
+  },
+};
+
+[
+  PipelineLinting,
+  PipelineDeployment(scenario='centos7'),
+  PipelineDocumentation,
+  PipelineNotification,
+]

.flake8

@@ -0,0 +1,5 @@
+[flake8]
+ignore = D101, D102, D103, D105, D107, E402, W503
+max-line-length = 99
+inline-quotes = double
+exclude = .git,.tox,__pycache__,build,dist,tests,*.pyc,*.egg-info,.cache,.eggs,env*

.gitignore

@@ -0,0 +1,11 @@
+# ---> Ansible
+*.retry
+plugins
+library
+
+# ---> Python
+# Byte-compiled / optimized / DLL files
+__pycache__/
+*.py[cod]
+*$py.class
+

.later.yml

@@ -0,0 +1,19 @@
+---
+ansible:
+  custom_modules:
+    - iptables_raw
+    - openssl_pkcs12
+    - proxmox_kvm
+    - ucr
+    - corenetworks_dns
+    - corenetworks_token
+
+rules:
+  exclude_files:
+    - molecule/
+    - "LICENSE*"
+    - "**/*.md"
+    - "**/*.ini"
+
+  exclude_filter:
+    - LINT0009

.prettierignore

@@ -0,0 +1 @@
+.drone*

LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2021 Robert Kaussow <mail@thegeeklab.de>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is furnished
+to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice (including the next
+paragraph) shall be included in all copies or substantial portions of the
+Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS
+OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
+OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

README.md

@@ -0,0 +1,10 @@
+# xoxys.telegraf
+
+[![Build Status](https://img.shields.io/drone/build/ansible/xoxys.telegraf?logo=drone&server=https%3A%2F%2Fdrone.rknet.org)](https://drone.rknet.org/ansible/xoxys.telegraf)
+[![License: MIT](https://img.shields.io/badge/License-MIT-blue.svg?label=license)](LICENSE)
+
+Setup [Telegraf](https://github.com/influxdata/telegraf) metrics agent. You can find the full documentation at [https://galaxy.geekdocs.de](https://galaxy.geekdocs.de/roles/cloud/telegraf/).
+
+## License
+
+This project is licensed under the MIT License - see the [LICENSE](LICENSE) file for details.

defaults/main.yml

@@ -0,0 +1,141 @@
+---
+telegraf_packages_extra: []
+
+# @var telegraf_requires_docker_group:description: Optionally disable docker group join.
+telegraf_requires_docker_group: False
+telegraf_docker_group_name: dockerroot
+
+# @var telegraf_interval:description: Default data collection interval for all inputs.
+telegraf_interval: 10s
+
+# @var telegraf_round_interval:description: Rounds collection interval to interval.
+telegraf_round_interval: True
+
+# @var telegraf_metric_batch_size:description: Telegraf will send metrics to outputs in batches of this amount.
+telegraf_metric_batch_size: 1000
+
+# @var telegraf_metric_buffer_limit:description: Maximum number of unwritten metrics per output.
+telegraf_metric_buffer_limit: 10000
+
+# @var telegraf_collection_jitter:description: Collection jitter is used to jitter the collection by a random amount.
+telegraf_collection_jitter: 0s
+
+# @var telegraf_flush_interval:description: Default flushing interval for all outputs.
+telegraf_flush_interval: 10s
+
+# @var telegraf_flush_jitter:description: Jitter the flush interval by a random amount.
+telegraf_flush_jitter: 0s
+
+# @var telegraf_precision:description: Precision will be set to the same timestamp order as the collection interval.
+# @var telegraf_precision:default: $ "_unset_"
+
+# @var telegraf_debug:description: Log at debug level.
+telegraf_debug: False
+
+# @var telegraf_quiet:description: Log only error level messages.
+telegraf_quiet: True
+
+# @var telegraf_logtarget:description: Log target controls the destination for logs.
+telegraf_logtarget: stderr
+
+# @var telegraf_logfile:description: Name of the file to be logged to when using the file logtarget.
+# @var telegraf_logfile:default: $ "_unset_"
+
+# @var telegraf_logfile_rotation_interval:description: The logfile will be rotated after the time interval specified.
+# @var telegraf_logfile_rotation_interval:default: $ "_unset_"
+
+# @var telegraf_logfile_rotation_max_size:description: The logfile will be rotated when it becomes larger than the specified size.
+# @var telegraf_logfile_rotation_max_size:default: $ "_unset_"
+
+# @var telegraf_logfile_rotation_max_archives:description: Maximum number of rotated archives to keep, any older logs are deleted.
+# @var telegraf_logfile_rotation_max_archives:default: $ "_unset_"
+
+# @var telegraf_hostname:description: Override default hostname.
+telegraf_hostname: "{{ inventory_hostname }}"
+
+# @var telegraf_omit_hostname:description: If set to True, do no set the host tag in the telegraf agent.
+telegraf_omit_hostname: False
+
+# @var telegraf_template_files:description: Path to templates loaded into telegraf.d directory.
+telegraf_template_files:
+  - telegraf/templates/*.conf.j2
+
+# @var telegraf_prometheus_listen:description: Address to listen for Prometheus.
+telegraf_prometheus_listen: 127.0.0.1:9273
+
+# @var telegraf_prometheus_username:description: Username used by Prometheus.
+telegraf_prometheus_username: prometheus
+
+# @var telegraf_prometheus_password:description: Password used by Prometheus.
+telegraf_prometheus_password: secure
+
+telegraf_prometheus_tls_enabled: False
+telegraf_prometheus_tls_cert_path: /etc/pki/tls/certs/mycert.pem
+telegraf_prometheus_tls_key_path: /etc/pki/tls/private/mykey.pem
+telegraf_prometheus_tls_cert_source: mycert.pem
+telegraf_prometheus_tls_key_source: mykey.pem
+
+# @var telegraf_global_tags:description: List of global tags.
+# @var telegraf_global_tags:example: >
+# telegraf_global_tags:
+#   - key: rack
+#     value: r155
+#   - key: switch
+#     value: sw5
+# @end
+telegraf_global_tags: []
+
+# @var telegraf_processors:description: List of default processors, combined with extra.
+# @var telegraf_processors:example: >
+# telegraf_processors:
+#   - plugin: foo
+#     config:
+#       - option1 = "value1"
+#       - option2 = "value2"
+# @end
+telegraf_processors: []
+telegraf_processors_extra: []
+
+# @var telegraf_aggregators:description: List of default aggregators, combined with extra.
+# @var telegraf_aggregators:example: >
+# telegraf_aggregators:
+#   - plugin: foo
+#     config:
+#       - option1 = "value1"
+#       - option2 = "value2"
+# @end
+telegraf_aggregators: []
+telegraf_aggregators_extra: []
+
+# @var telegraf_plugins:description: List of default plugins, combined with extra.
+telegraf_plugins:
+  - plugin: net
+    config:
+      - ignore_protocol_stats = false
+      - interfaces = ["eth*"]
+  - plugin: cpu
+    config:
+      - percpu = true
+      - totalcpu = true
+      - collect_cpu_time = false
+      - report_active = false
+  - plugin: disk
+    config:
+      - ignore_fs = ["tmpfs", "devtmpfs", "devfs"]
+  - plugin: filestat
+    config:
+      - files = ["/var/log/**.log"]
+  - plugin: procstat
+    config:
+      - pattern = ".*"
+  - plugin: netstat
+  - plugin: diskio
+  - plugin: kernel
+  - plugin: mem
+  - plugin: processes
+  - plugin: swap
+  - plugin: system
+  - plugin: kernel_vmstat
+  - plugin: linux_sysctl_fs
+
+telegraf_plugins_extra: []

handlers/main.yml

@@ -0,0 +1,10 @@
+---
+- name: Restart Telegraf
+  systemd:
+    name: telegraf
+    state: restarted
+    daemon_reload: yes
+    enabled: yes
+  listen: __telegraf_restart
+  become: True
+  become_user: root

meta/main.yml

@@ -0,0 +1,23 @@
+# Standards: 0.2
+---
+galaxy_info:
+  # @meta author:value: [Robert Kaussow](https://gitea.rknet.org/xoxys)
+  author: "Robert Kaussow <mail@thegeeklab.de>"
+  namespace: xoxys
+  role_name: telegraf
+  # @meta description: >
+  # [![Source Code](https://img.shields.io/badge/gitea-source%20code-blue?logo=gitea&logoColor=white)](https://gitea.rknet.org/ansible/xoxys.telegraf)
+  # [![Build Status](https://img.shields.io/drone/build/ansible/xoxys.telegraf?logo=drone&server=https%3A%2F%2Fdrone.rknet.org)](https://drone.rknet.org/ansible/xoxys.telegraf)
+  # [![License: MIT](https://img.shields.io/badge/License-MIT-blue.svg?label=license)](https://gitea.rknet.org/ansible/xoxys.telegraf/src/branch/master/LICENSE)
+  #
+  # Setup [Telegraf](https://github.com/influxdata/telegraf) metrics agent.
+  # @end
+  description: Setup Telegraf metrics agent
+  license: MIT
+  min_ansible_version: 2.10
+  platforms:
+    - name: EL
+      versions:
+        - 7
+  galaxy_tags: []
+dependencies: []

molecule/centos7/converge.yml

@@ -0,0 +1,7 @@
+---
+- name: Converge
+  hosts: all
+  vars:
+    telegraf_quiet: False
+  roles:
+    - role: xoxys.telegraf

molecule/centos7/create.yml

@@ -0,0 +1,120 @@
+---
+- name: Create
+  hosts: localhost
+  connection: local
+  gather_facts: false
+  no_log: "{{ molecule_no_log }}"
+  vars:
+    ssh_port: 22
+    ssh_user: root
+    ssh_path: "{{ lookup('env', 'MOLECULE_EPHEMERAL_DIRECTORY') }}/ssh_key"
+  tasks:
+    - name: Create SSH key
+      user:
+        name: "{{ lookup('env', 'USER') }}"
+        generate_ssh_key: true
+        ssh_key_file: "{{ ssh_path }}"
+        force: true
+      register: generated_ssh_key
+
+    - name: Register the SSH key name
+      set_fact:
+        ssh_key_name: "molecule-generated-{{ 12345 | random | to_uuid }}"
+
+    - name: Register SSH key for test instance(s)
+      hcloud_ssh_key:
+        name: "{{ ssh_key_name }}"
+        public_key: "{{ generated_ssh_key.ssh_public_key }}"
+        state: present
+
+    - name: Create molecule instance(s)
+      hcloud_server:
+        name: "{{ item.name }}"
+        server_type: "{{ item.server_type }}"
+        ssh_keys:
+          - "{{ ssh_key_name }}"
+        image: "{{ item.image }}"
+        location: "{{ item.location | default(omit) }}"
+        datacenter: "{{ item.datacenter | default(omit) }}"
+        user_data: "{{ item.user_data | default(omit) }}"
+        api_token: "{{ lookup('env', 'HCLOUD_TOKEN') }}"
+        state: present
+      register: server
+      loop: "{{ molecule_yml.platforms }}"
+      async: 7200
+      poll: 0
+
+    - name: Wait for instance(s) creation to complete
+      async_status:
+        jid: "{{ item.ansible_job_id }}"
+      register: hetzner_jobs
+      until: hetzner_jobs.finished
+      retries: 300
+      loop: "{{ server.results }}"
+
+    - name: Create volume(s)
+      hcloud_volume:
+        name: "{{ item.name }}"
+        server: "{{ item.name }}"
+        location: "{{ item.location | default(omit) }}"
+        size: "{{ item.volume_size | default(10) }}"
+        api_token: "{{ lookup('env', 'HCLOUD_TOKEN') }}"
+        state: "present"
+      loop: "{{ molecule_yml.platforms }}"
+      when: item.volume | default(False) | bool
+      register: volumes
+      async: 7200
+      poll: 0
+
+    - name: Wait for volume(s) creation to complete
+      async_status:
+        jid: "{{ item.ansible_job_id }}"
+      register: hetzner_volumes
+      until: hetzner_volumes.finished
+      retries: 300
+      when: volumes.changed
+      loop: "{{ volumes.results }}"
+
+    # Mandatory configuration for Molecule to function.
+
+    - name: Populate instance config dict
+      set_fact:
+        instance_conf_dict:
+          {
+            "instance": "{{ item.hcloud_server.name }}",
+            "ssh_key_name": "{{ ssh_key_name }}",
+            "address": "{{ item.hcloud_server.ipv4_address }}",
+            "user": "{{ ssh_user }}",
+            "port": "{{ ssh_port }}",
+            "identity_file": "{{ ssh_path }}",
+            "volume": "{{ item.item.item.volume | default(False) | bool }}",
+          }
+      loop: "{{ hetzner_jobs.results }}"
+      register: instance_config_dict
+      when: server.changed | bool
+
+    - name: Convert instance config dict to a list
+      set_fact:
+        instance_conf: "{{ instance_config_dict.results | map(attribute='ansible_facts.instance_conf_dict') | list }}"
+      when: server.changed | bool
+
+    - name: Dump instance config
+      copy:
+        content: |
+          # Molecule managed
+
+          {{ instance_conf | to_nice_yaml(indent=2) }}
+        dest: "{{ molecule_instance_config }}"
+      when: server.changed | bool
+
+    - name: Wait for SSH
+      wait_for:
+        port: "{{ ssh_port }}"
+        host: "{{ item.address }}"
+        search_regex: SSH
+        delay: 10
+      loop: "{{ lookup('file', molecule_instance_config) | from_yaml }}"
+
+    - name: Wait for VM to settle down
+      pause:
+        seconds: 30

molecule/centos7/destroy.yml

@@ -0,0 +1,78 @@
+---
+- name: Destroy
+  hosts: localhost
+  connection: local
+  gather_facts: false
+  no_log: "{{ molecule_no_log }}"
+  tasks:
+    - name: Check existing instance config file
+      stat:
+        path: "{{ molecule_instance_config }}"
+      register: cfg
+
+    - name: Populate the instance config
+      set_fact:
+        instance_conf: "{{ (lookup('file', molecule_instance_config) | from_yaml) if cfg.stat.exists else [] }}"
+
+    - name: Destroy molecule instance(s)
+      hcloud_server:
+        name: "{{ item.instance }}"
+        api_token: "{{ lookup('env', 'HCLOUD_TOKEN') }}"
+        state: absent
+      register: server
+      loop: "{{ instance_conf }}"
+      async: 7200
+      poll: 0
+
+    - name: Wait for instance(s) deletion to complete
+      async_status:
+        jid: "{{ item.ansible_job_id }}"
+      register: hetzner_jobs
+      until: hetzner_jobs.finished
+      retries: 300
+      loop: "{{ server.results }}"
+
+    - pause:
+        seconds: 5
+
+    - name: Destroy volume(s)
+      hcloud_volume:
+        name: "{{ item.instance }}"
+        server: "{{ item.instance }}"
+        api_token: "{{ lookup('env', 'HCLOUD_TOKEN') }}"
+        state: "absent"
+      register: volumes
+      loop: "{{ instance_conf }}"
+      when: item.volume | default(False) | bool
+      async: 7200
+      poll: 0
+
+    - name: Wait for volume(s) deletion to complete
+      async_status:
+        jid: "{{ item.ansible_job_id }}"
+      register: hetzner_volumes
+      until: hetzner_volumes.finished
+      retries: 300
+      when: volumes.changed
+      loop: "{{ volumes.results }}"
+
+    - name: Remove registered SSH key
+      hcloud_ssh_key:
+        name: "{{ instance_conf[0].ssh_key_name }}"
+        state: absent
+      when: (instance_conf | default([])) | length > 0
+
+    # Mandatory configuration for Molecule to function.
+
+    - name: Populate instance config
+      set_fact:
+        instance_conf: {}
+
+    - name: Dump instance config
+      copy:
+        content: |
+          # Molecule managed
+
+          {{ instance_conf | to_nice_yaml(indent=2) }}
+        dest: "{{ molecule_instance_config }}"
+      when: server.changed | bool

molecule/centos7/molecule.yml

@@ -0,0 +1,24 @@
+---
+dependency:
+  name: galaxy
+  options:
+    role-file: molecule/requirements.yml
+    requirements-file: molecule/requirements.yml
+  env:
+    ANSIBLE_GALAXY_DISPLAY_PROGRESS: "false"
+driver:
+  name: delegated
+platforms:
+  - name: centos7-telegraf
+    image: centos-7
+    server_type: cx11
+lint: |
+  /usr/local/bin/flake8
+provisioner:
+  name: ansible
+  env:
+    ANSIBLE_FILTER_PLUGINS: ${ANSIBLE_FILTER_PLUGINS:-./plugins/filter}
+    ANSIBLE_LIBRARY: ${ANSIBLE_LIBRARY:-./library}
+  log: False
+verifier:
+  name: testinfra

molecule/centos7/prepare.yml

@@ -0,0 +1,15 @@
+---
+- name: Prepare
+  hosts: all
+  gather_facts: false
+  tasks:
+    - name: Bootstrap python for Ansible
+      raw: |
+        command -v python3 python || (
+        (test -e /usr/bin/dnf && sudo dnf install -y python3) ||
+        (test -e /usr/bin/apt && (apt -y update && apt install -y python-minimal)) ||
+        (test -e /usr/bin/yum && sudo yum -y -qq install python3) ||
+        echo "Warning: Python not boostrapped due to unknown platform."
+        )
+      become: true
+      changed_when: false

molecule/centos7/telegraf/templates/ping.conf.j2

@@ -0,0 +1,4 @@
+[[inputs.ping]]
+    ## Hosts to send ping packets to.
+    urls = ["1.1.1.1", "{{ ansible_default_ipv4.address }}"]
+    method = "exec"

molecule/centos7/tests/test_default.py

@@ -0,0 +1,25 @@
+import os
+import warnings
+
+import testinfra.utils.ansible_runner
+
+warnings.filterwarnings("ignore", category=DeprecationWarning)
+
+testinfra_hosts = testinfra.utils.ansible_runner.AnsibleRunner(
+    os.environ["MOLECULE_INVENTORY_FILE"]).get_hosts("all")
+
+
+def test_telegraf_installed(host):
+    pkg = host.package("telegraf")
+    assert pkg.is_installed
+
+
+def test_telegraf_running_and_enabled(host):
+    telegraf = host.service("telegraf")
+    assert telegraf.is_running
+    assert telegraf.is_enabled
+
+
+def test_telegraf_socket(host):
+    # Verify the socket is listening for telegraf traffic
+    assert host.socket("tcp://127.0.0.1:9273").is_listening

molecule/default

@@ -0,0 +1 @@
+centos7

molecule/pytest.ini

@@ -0,0 +1,3 @@
+[pytest]
+filterwarnings =
+    ignore::DeprecationWarning

molecule/requirements.yml

@@ -0,0 +1,6 @@
+---
+collections:
+  - name: https://gitea.rknet.org/ansible/xoxys.general/releases/download/v2.1.1/xoxys-general-2.1.1.tar.gz
+  - name: community.general
+
+roles: []

tasks/main.yml

@@ -0,0 +1,5 @@
+---
+- import_tasks: tls.yml
+  when: telegraf_prometheus_tls_enabled | bool
+  tags: tls_renewal
+- include_tasks: setup.yml

tasks/setup.yml

@@ -0,0 +1,61 @@
+---
+- block:
+    - name: Add Telegraf repository
+      yum_repository:
+        name: influxdb
+        file: InfluxDB
+        description: InfluxDB Repository
+        baseurl: "https://repos.influxdata.com/rhel/{{ ansible_distribution_major_version }}/$basearch/stable"
+        gpgkey: https://repos.influxdata.com/influxdb.key
+        gpgcheck: yes
+
+    - name: Ensure dependencies are installed
+      package:
+        name: "{{ item }}"
+        state: present
+      loop: "{{ telegraf_packages_extra }}"
+
+    - name: Ensure Telegraf is installed
+      package:
+        name: "{{ item }}"
+        state: present
+      loop:
+        - telegraf
+
+    - name: Copy custom Telegraf template files
+      template:
+        src: "{{ item }}"
+        dest: /etc/telegraf/telegraf.d/{{ item | basename | splitext | first }}
+        owner: telegraf
+        group: root
+        mode: 0640
+      with_fileglob: "{{ telegraf_template_files }}"
+      loop_control:
+        label: "{{ item | basename | splitext | first }}"
+      notify: __telegraf_restart
+
+    - name: Add docker group
+      user:
+        name: telegraf
+        groups: "{{ telegraf_docker_group_name }}"
+        append: True
+      notify: __telegraf_restart
+      when: telegraf_requires_docker_group
+
+    - name: Write config file
+      template:
+        src: etc/telegraf/telegraf/telegraf.conf.j2
+        dest: /etc/telegraf/telegraf.conf
+        owner: telegraf
+        group: root
+        mode: 0600
+      notify: __telegraf_restart
+
+    - name: Ensure Telegraf is up and running
+      systemd:
+        name: telegraf
+        daemon_reload: yes
+        enabled: yes
+        state: started
+  become: True
+  become_user: root

tasks/tls.yml

@@ -0,0 +1,31 @@
+---
+- block:
+    - name: Create tls folder structure
+      file:
+        path: "{{ item }}"
+        state: directory
+        recurse: True
+      loop:
+        - "{{ telegraf_prometheus_tls_cert_path | dirname }}"
+        - "{{ telegraf_prometheus_tls_key_path | dirname }}"
+
+    - name: Copy certs and private key
+      copy:
+        src: "{{ item.src }}"
+        dest: "{{ item.dest }}"
+        mode: "{{ item.mode }}"
+      loop:
+        - src: "{{ telegraf_prometheus_tls_key_source }}"
+          dest: "{{ telegraf_prometheus_tls_key_path }}"
+          owner: telegraf
+          group: root
+          mode: "0600"
+        - src: "{{ telegraf_prometheus_tls_cert_source }}"
+          dest: "{{ telegraf_prometheus_tls_cert_path }}"
+          owner: telegraf
+          group: root
+          mode: "0750"
+      loop_control:
+        label: "{{ item.dest }}"
+  become: True
+  become_user: root

templates/etc/telegraf/telegraf/telegraf.conf.j2

@@ -0,0 +1,92 @@
+#jinja2: lstrip_blocks: True
+{{ ansible_managed | comment }}
+
+[agent]
+    interval = "{{ telegraf_interval }}"
+    round_interval = {{ telegraf_round_interval | lower }}
+    metric_batch_size = {{ telegraf_metric_batch_size }}
+    metric_buffer_limit = {{ telegraf_metric_buffer_limit }}
+    collection_jitter = "{{ telegraf_collection_jitter }}"
+    flush_interval = "{{ telegraf_flush_interval }}"
+    flush_jitter = "{{ telegraf_flush_jitter }}"
+    precision = "{{ telegraf_precision | default('') }}"
+    debug = {{ telegraf_debug | lower }}
+    quiet = {{ telegraf_quiet | lower }}
+    logtarget = "{{ telegraf_logtarget }}"
+    {% if telegraf_logfile is defined %}
+    logfile = "{{ telegraf_logfile }}"
+    {% endif %}
+    {% if telegraf_logfile_rotation_interval | default(False) %}
+    logfile_rotation_interval = "{{ telegraf_logfile_rotation_interval }}"
+    {% endif %}
+    {% if telegraf_logfile_rotation_max_size | default(False) %}
+    logfile_rotation_max_size = "{{ telegraf_logfile_rotation_max_size }}"
+    {% endif %}
+    {% if telegraf_logfile_rotation_max_archives | default(False) %}
+    logfile_rotation_max_archives = {{ telegraf_logfile_rotation_max_archives }}
+    {% endif %}
+    hostname = "{{ telegraf_hostname }}"
+    omit_hostname = {{ telegraf_omit_hostname | lower }}
+
+{% if telegraf_global_tags | length > 0 %}
+[global_tags]
+{% for tag in telegraf_global_tags %}
+    {{ tag.key }} = "{{ tag.value }}"
+{% endfor %}
+
+{% endif %}
+[[outputs.prometheus_client]]
+    listen = "{{ telegraf_prometheus_listen }}"
+    basic_username = "{{ telegraf_prometheus_username }}"
+    basic_password = "{{ telegraf_prometheus_password }}"
+    ip_range = []
+    {% if telegraf_prometheus_tls_enabled | bool %}
+    tls_cert = "{{ telegraf_prometheus_tls_cert_path }}"
+    tls_key = "{{ telegraf_prometheus_tls_key_path }}"
+    {% endif %}
+    export_timestamp = false
+{% if (telegraf_processors + telegraf_processors_extra) | length > 0 %}
+{% for item in (telegraf_processors + telegraf_processors_extra) %}
+
+[[processors.{{ item.plugin }}]]
+{% if item.config is defined and item.config is iterable %}
+{% for item in item.config %}
+    {{ item }}
+{% endfor %}
+{% else %}
+    # no configuration
+{% endif %}
+{% endfor %}
+{% endif %}
+{% if (telegraf_aggregators + telegraf_aggregators_extra) | length > 0 %}
+{% for item in (telegraf_aggregators + telegraf_aggregators_extra) %}
+
+[[aggregators.{{ item.plugin }}]]
+{% if item.period | default(False) %}
+    period = "{{ item.interval }}s"
+{% endif %}
+{% if item.config is defined and item.config is iterable %}
+{% for item in item.config %}
+    {{ item }}
+{% endfor %}
+{% else %}
+    # no configuration
+{% endif %}
+{% endfor %}
+{% endif %}
+{% if (telegraf_plugins + telegraf_plugins_extra) | length > 0 %}
+{% for item in (telegraf_plugins + telegraf_plugins_extra) %}
+
+[[inputs.{{ item.plugin }}]]
+{% if item.interval | default(False) %}
+    interval = "{{ item.interval }}s"
+{% endif %}
+{% if item.config is defined and item.config is iterable %}
+{% for item in item.config %}
+    {{ item }}
+{% endfor %}
+{% else %}
+    # no configuration
+{% endif %}
+{% endfor %}
+{% endif %}