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paulfantompaulfantom
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add option to propagate binaries without access to internet (#27)
add option to propagate binaries without access to internet [minor] release
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‎README.md‎

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@@ -23,6 +23,7 @@ All variables which can be overridden are stored in [defaults/main.yml](defaults
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| Name | Default Value | Description |
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| -------------- | ------------- | -----------------------------------|
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| `mysqld_exporter_version` | 0.12.1 | mysqld exporter package version. Versions before 0.11 aren't supported. |
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| `mysqld_exporter_binary_local_dir` | "" | Allows to use local packages instead of ones distributed on github. As parameter it takes a directory where `mysqld_exporter` binary is stored on host on which ansible is ran. This overrides `mysqld_exporter_version` parameter |
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| `mysqld_exporter_web_listen_address` | "0.0.0.0:9104" | Address on which mysqld exporter will listen |
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## Example

‎defaults/main.yml‎

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---
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mysqld_exporter_binary_local_dir: ""
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mysqld_exporter_version: 0.12.1
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mysqld_exporter_web_listen_address: "0.0.0.0:9104"
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‎molecule/alternative/molecule.yml‎

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---
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dependency:
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name: galaxy
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driver:
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name: docker
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lint:
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name: yamllint
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platforms:
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- name: bionic
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image: quay.io/paulfantom/molecule-systemd:ubuntu-18.04
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docker_host: "${DOCKER_HOST:-unix://var/run/docker.sock}"
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privileged: true
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volumes:
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- /sys/fs/cgroup:/sys/fs/cgroup:ro
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- name: xenial
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image: quay.io/paulfantom/molecule-systemd:ubuntu-16.04
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docker_host: "${DOCKER_HOST:-unix://var/run/docker.sock}"
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privileged: true
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volumes:
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- /sys/fs/cgroup:/sys/fs/cgroup:ro
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- name: stretch
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image: quay.io/paulfantom/molecule-systemd:debian-9
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docker_host: "${DOCKER_HOST:-unix://var/run/docker.sock}"
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privileged: true
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volumes:
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- /sys/fs/cgroup:/sys/fs/cgroup:ro
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- name: buster
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image: quay.io/paulfantom/molecule-systemd:debian-10
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docker_host: "${DOCKER_HOST:-unix://var/run/docker.sock}"
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privileged: true
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volumes:
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- /sys/fs/cgroup:/sys/fs/cgroup:ro
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- name: centos7
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image: quay.io/paulfantom/molecule-systemd:centos-7
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docker_host: "${DOCKER_HOST:-unix://var/run/docker.sock}"
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privileged: true
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volumes:
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- /sys/fs/cgroup:/sys/fs/cgroup:ro
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- name: centos8
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image: quay.io/paulfantom/molecule-systemd:centos-8
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docker_host: "${DOCKER_HOST:-unix://var/run/docker.sock}"
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privileged: true
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volumes:
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- /sys/fs/cgroup:/sys/fs/cgroup:ro
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groups:
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- python3
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- name: fedora
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image: quay.io/paulfantom/molecule-systemd:fedora-30
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docker_host: "${DOCKER_HOST:-unix://var/run/docker.sock}"
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privileged: true
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volumes:
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- /sys/fs/cgroup:/sys/fs/cgroup:ro
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groups:
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- python3
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provisioner:
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name: ansible
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lint:
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name: ansible-lint
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playbooks:
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create: ../default/create.yml
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prepare: prepare.yml
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converge: playbook.yml
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destroy: ../default/destroy.yml
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inventory:
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group_vars:
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python3:
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ansible_python_interpreter: /usr/bin/python3
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scenario:
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name: alternative
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verifier:
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name: testinfra
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lint:
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name: flake8
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enabled: true

‎molecule/alternative/playbook.yml‎

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---
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- name: Run role
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hosts: all
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any_errors_fatal: true
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roles:
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- ansible-mysqld_exporter
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vars:
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mysqld_exporter_binary_local_dir: "/tmp/mysqld_exporter-linux-amd64"
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mysqld_exporter_dsn: "root@(localhost:3306)/"

‎molecule/alternative/prepare.yml‎

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---
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- name: Prepare
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hosts: localhost
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gather_facts: false
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vars:
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go_arch: amd64
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mysqld_exporter_version: 0.12.1
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tasks:
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- name: Download mysqld_exporter binary to local folder
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become: false
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get_url:
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url: "https://github.com/prometheus/mysqld_exporter/releases/download/v{{ mysqld_exporter_version }}/mysqld_exporter-{{ mysqld_exporter_version }}.linux-{{ go_arch }}.tar.gz"
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dest: "/tmp/mysqld_exporter-{{ mysqld_exporter_version }}.linux-{{ go_arch }}.tar.gz"
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register: _download_binary
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until: _download_binary is succeeded
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retries: 5
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delay: 2
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run_once: true
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check_mode: false
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- name: Unpack mysqld_exporter binary
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become: false
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unarchive:
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src: "/tmp/mysqld_exporter-{{ mysqld_exporter_version }}.linux-{{ go_arch }}.tar.gz"
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dest: "/tmp"
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creates: "/tmp/mysqld_exporter-{{ mysqld_exporter_version }}.linux-{{ go_arch }}/mysqld_exporter"
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run_once: true
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check_mode: false
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- name: link to mysqld_exporter binaries directory
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become: false
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file:
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src: "/tmp/mysqld_exporter-{{ mysqld_exporter_version }}.linux-amd64"
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dest: "/tmp/mysqld_exporter-linux-amd64"
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state: link
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run_once: true
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check_mode: false

‎molecule/alternative/tests/test_alternative.py‎

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import os
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import testinfra.utils.ansible_runner
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testinfra_hosts = testinfra.utils.ansible_runner.AnsibleRunner(
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os.environ['MOLECULE_INVENTORY_FILE']).get_hosts('all')
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def test_files(host):
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files = [
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"/etc/systemd/system/mysqld_exporter.service",
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"/usr/local/bin/mysqld_exporter"
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]
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for file in files:
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f = host.file(file)
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assert f.exists
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assert f.is_file
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def test_service(host):
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s = host.service("mysqld_exporter")
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# assert s.is_enabled
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assert s.is_running
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def test_socket(host):
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sockets = [
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"tcp://0.0.0.0:9104"
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]
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for socket in sockets:
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s = host.socket(socket)
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assert s.is_listening

‎tasks/install.yml‎

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---
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- name: Create the MySQL Exporter group
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group:
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name: "{{ __mysqld_exporter_group }}"
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state: present
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system: true
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- name: Create the MySQL Exporter user
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user:
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name: "{{ __mysqld_exporter_user }}"
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groups: "{{ __mysqld_exporter_group }}"
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append: true
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shell: /usr/sbin/nologin
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system: true
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createhome: false
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home: /
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- block:
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- name: Download mysqld_exporter binary to local folder
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become: false
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get_url:
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url: "https://github.com/prometheus/mysqld_exporter/releases/download/v{{ mysqld_exporter_version }}/mysqld_exporter-{{ mysqld_exporter_version }}.linux-{{ go_arch_map[ansible_architecture] | default(ansible_architecture) }}.tar.gz"
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dest: "/tmp/mysqld_exporter-{{ mysqld_exporter_version }}.linux-{{ go_arch_map[ansible_architecture] | default(ansible_architecture) }}.tar.gz"
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checksum: "sha256:{{ __mysqld_exporter_checksum }}"
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register: _download_binary
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until: _download_binary is succeeded
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retries: 5
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delay: 2
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delegate_to: localhost
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check_mode: false
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- name: Unpack mysqld_exporter binary
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become: false
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unarchive:
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src: "/tmp/mysqld_exporter-{{ mysqld_exporter_version }}.linux-{{ go_arch_map[ansible_architecture] | default(ansible_architecture) }}.tar.gz"
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dest: "/tmp"
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creates: "/tmp/mysqld_exporter-{{ mysqld_exporter_version }}.linux-{{ go_arch_map[ansible_architecture] | default(ansible_architecture) }}/mysqld_exporter"
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delegate_to: localhost
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check_mode: false
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- name: Propagate mysqld_exporter binaries
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copy:
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src: "/tmp/mysqld_exporter-{{ mysqld_exporter_version }}.linux-{{ go_arch_map[ansible_architecture] | default(ansible_architecture) }}/mysqld_exporter"
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dest: "/usr/local/bin/mysqld_exporter"
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mode: 0755
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owner: root
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group: root
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notify:
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- restart mysqld exporter
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when: not ansible_check_mode
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when: mysqld_exporter_binary_local_dir | length == 0
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- name: propagate locally distributed mysqld_exporter binary
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copy:
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src: "{{ mysqld_exporter_binary_local_dir }}/mysqld_exporter"
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dest: "/usr/local/bin/mysqld_exporter"
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mode: 0755
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owner: root
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group: root
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when: mysqld_exporter_binary_local_dir | length > 0
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notify: restart mysqld exporter
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- name: Copy the mysqld_exporter systemd service file
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template:
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src: mysqld_exporter.service.j2
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dest: /etc/systemd/system/mysqld_exporter.service
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owner: root
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group: root
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mode: 0644
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no_log: "{{ not lookup('env', 'ANSIBLE_DEBUG') | bool }}"
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notify:
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- restart mysqld exporter

‎tasks/main.yml‎

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---
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- include: preflight.yml
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- import_tasks: preflight.yml
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- name: Create the MySQL Exporter group
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group:
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name: "{{ __mysqld_exporter_group }}"
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state: present
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system: true
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- name: Create the MySQL Exporter user
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user:
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name: "{{ __mysqld_exporter_user }}"
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groups: "{{ __mysqld_exporter_group }}"
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append: true
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shell: /usr/sbin/nologin
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system: true
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createhome: false
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home: /
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- name: Download mysqld_exporter binary to local folder
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become: false
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get_url:
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url: "https://github.com/prometheus/mysqld_exporter/releases/download/v{{ mysqld_exporter_version }}/mysqld_exporter-{{ mysqld_exporter_version }}.linux-{{ go_arch_map[ansible_architecture] | default(ansible_architecture) }}.tar.gz"
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dest: "/tmp/mysqld_exporter-{{ mysqld_exporter_version }}.linux-{{ go_arch_map[ansible_architecture] | default(ansible_architecture) }}.tar.gz"
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checksum: "sha256:{{ __mysqld_exporter_checksum }}"
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register: _download_binary
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until: _download_binary is succeeded
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retries: 5
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delay: 2
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delegate_to: localhost
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check_mode: false
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- name: Unpack mysqld_exporter binary
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become: false
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unarchive:
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src: "/tmp/mysqld_exporter-{{ mysqld_exporter_version }}.linux-{{ go_arch_map[ansible_architecture] | default(ansible_architecture) }}.tar.gz"
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dest: "/tmp"
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creates: "/tmp/mysqld_exporter-{{ mysqld_exporter_version }}.linux-{{ go_arch_map[ansible_architecture] | default(ansible_architecture) }}/mysqld_exporter"
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delegate_to: localhost
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check_mode: false
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- name: Propagate mysqld_exporter binaries
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copy:
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src: "/tmp/mysqld_exporter-{{ mysqld_exporter_version }}.linux-{{ go_arch_map[ansible_architecture] | default(ansible_architecture) }}/mysqld_exporter"
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dest: "/usr/local/bin/mysqld_exporter"
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mode: 0755
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owner: root
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group: root
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notify:
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- restart mysqld exporter
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when: not ansible_check_mode
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- name: Copy the mysqld_exporter systemd service file
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template:
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src: mysqld_exporter.service.j2
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dest: /etc/systemd/system/mysqld_exporter.service
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owner: root
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group: root
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mode: 0644
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no_log: "{{ not lookup('env', 'ANSIBLE_DEBUG') | bool }}"
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notify:
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- restart mysqld exporter
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- import_tasks: install.yml
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- name: Ensure mysqld_exporter is enabled on boot
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systemd:

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