add option to propagate binaries without access to internet

README.md

@@ -23,6 +23,7 @@ All variables which can be overridden are stored in [defaults/main.yml](defaults
 | Name           | Default Value | Description                        |
 | -------------- | ------------- | -----------------------------------|
 | `mysqld_exporter_version` | 0.12.1 | mysqld exporter package version. Versions before 0.11 aren't supported. |
+| `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 |
 | `mysqld_exporter_web_listen_address` | "0.0.0.0:9104" | Address on which mysqld exporter will listen |
 
 ## Example

defaults/main.yml

@@ -1,4 +1,5 @@
 ---
+mysqld_exporter_binary_local_dir: ""
 mysqld_exporter_version: 0.12.1
 mysqld_exporter_web_listen_address: "0.0.0.0:9104"
 

molecule/alternative/molecule.yml

@@ -0,0 +1,74 @@
+---
+dependency:
+  name: galaxy
+driver:
+  name: docker
+lint:
+  name: yamllint
+platforms:
+  - name: bionic
+    image: quay.io/paulfantom/molecule-systemd:ubuntu-18.04
+    docker_host: "${DOCKER_HOST:-unix://var/run/docker.sock}"
+    privileged: true
+    volumes:
+      - /sys/fs/cgroup:/sys/fs/cgroup:ro
+  - name: xenial
+    image: quay.io/paulfantom/molecule-systemd:ubuntu-16.04
+    docker_host: "${DOCKER_HOST:-unix://var/run/docker.sock}"
+    privileged: true
+    volumes:
+      - /sys/fs/cgroup:/sys/fs/cgroup:ro
+  - name: stretch
+    image: quay.io/paulfantom/molecule-systemd:debian-9
+    docker_host: "${DOCKER_HOST:-unix://var/run/docker.sock}"
+    privileged: true
+    volumes:
+      - /sys/fs/cgroup:/sys/fs/cgroup:ro
+  - name: buster
+    image: quay.io/paulfantom/molecule-systemd:debian-10
+    docker_host: "${DOCKER_HOST:-unix://var/run/docker.sock}"
+    privileged: true
+    volumes:
+      - /sys/fs/cgroup:/sys/fs/cgroup:ro
+  - name: centos7
+    image: quay.io/paulfantom/molecule-systemd:centos-7
+    docker_host: "${DOCKER_HOST:-unix://var/run/docker.sock}"
+    privileged: true
+    volumes:
+      - /sys/fs/cgroup:/sys/fs/cgroup:ro
+  - name: centos8
+    image: quay.io/paulfantom/molecule-systemd:centos-8
+    docker_host: "${DOCKER_HOST:-unix://var/run/docker.sock}"
+    privileged: true
+    volumes:
+      - /sys/fs/cgroup:/sys/fs/cgroup:ro
+    groups:
+      - python3
+  - name: fedora
+    image: quay.io/paulfantom/molecule-systemd:fedora-30
+    docker_host: "${DOCKER_HOST:-unix://var/run/docker.sock}"
+    privileged: true
+    volumes:
+      - /sys/fs/cgroup:/sys/fs/cgroup:ro
+    groups:
+      - python3
+provisioner:
+  name: ansible
+  lint:
+    name: ansible-lint
+  playbooks:
+    create: ../default/create.yml
+    prepare: prepare.yml
+    converge: playbook.yml
+    destroy: ../default/destroy.yml
+  inventory:
+    group_vars:
+      python3:
+        ansible_python_interpreter: /usr/bin/python3
+scenario:
+  name: alternative
+verifier:
+  name: testinfra
+  lint:
+    name: flake8
+    enabled: true

molecule/alternative/playbook.yml

@@ -0,0 +1,9 @@
+---
+- name: Run role
+  hosts: all
+  any_errors_fatal: true
+  roles:
+    - ansible-mysqld_exporter
+  vars:
+    mysqld_exporter_binary_local_dir: "/tmp/mysqld_exporter-linux-amd64"
+    mysqld_exporter_dsn: "root@(localhost:3306)/"

molecule/alternative/prepare.yml

@@ -0,0 +1,37 @@
+---
+- name: Prepare
+  hosts: localhost
+  gather_facts: false
+  vars:
+    go_arch: amd64
+    mysqld_exporter_version: 0.12.1
+  tasks:
+    - name: Download mysqld_exporter binary to local folder
+      become: false
+      get_url:
+        url: "https://github.com/prometheus/mysqld_exporter/releases/download/v{{ mysqld_exporter_version }}/mysqld_exporter-{{ mysqld_exporter_version }}.linux-{{ go_arch }}.tar.gz"
+        dest: "/tmp/mysqld_exporter-{{ mysqld_exporter_version }}.linux-{{ go_arch }}.tar.gz"
+      register: _download_binary
+      until: _download_binary is succeeded
+      retries: 5
+      delay: 2
+      run_once: true
+      check_mode: false
+
+    - name: Unpack mysqld_exporter binary
+      become: false
+      unarchive:
+        src: "/tmp/mysqld_exporter-{{ mysqld_exporter_version }}.linux-{{ go_arch }}.tar.gz"
+        dest: "/tmp"
+        creates: "/tmp/mysqld_exporter-{{ mysqld_exporter_version }}.linux-{{ go_arch }}/mysqld_exporter"
+      run_once: true
+      check_mode: false
+
+    - name: link to mysqld_exporter binaries directory
+      become: false
+      file:
+        src: "/tmp/mysqld_exporter-{{ mysqld_exporter_version }}.linux-amd64"
+        dest: "/tmp/mysqld_exporter-linux-amd64"
+        state: link
+      run_once: true
+      check_mode: false

molecule/alternative/tests/test_alternative.py

@@ -0,0 +1,31 @@
+import os
+import testinfra.utils.ansible_runner
+
+testinfra_hosts = testinfra.utils.ansible_runner.AnsibleRunner(
+    os.environ['MOLECULE_INVENTORY_FILE']).get_hosts('all')
+
+
+def test_files(host):
+    files = [
+        "/etc/systemd/system/mysqld_exporter.service",
+        "/usr/local/bin/mysqld_exporter"
+    ]
+    for file in files:
+        f = host.file(file)
+        assert f.exists
+        assert f.is_file
+
+
+def test_service(host):
+    s = host.service("mysqld_exporter")
+    # assert s.is_enabled
+    assert s.is_running
+
+
+def test_socket(host):
+    sockets = [
+        "tcp://0.0.0.0:9104"
+    ]
+    for socket in sockets:
+        s = host.socket(socket)
+        assert s.is_listening

tasks/install.yml

@@ -0,0 +1,72 @@
+---
+- name: Create the MySQL Exporter group
+  group:
+    name: "{{ __mysqld_exporter_group }}"
+    state: present
+    system: true
+
+- name: Create the MySQL Exporter user
+  user:
+    name: "{{ __mysqld_exporter_user }}"
+    groups: "{{ __mysqld_exporter_group }}"
+    append: true
+    shell: /usr/sbin/nologin
+    system: true
+    createhome: false
+    home: /
+
+- block:
+    - name: Download mysqld_exporter binary to local folder
+      become: false
+      get_url:
+        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"
+        dest: "/tmp/mysqld_exporter-{{ mysqld_exporter_version }}.linux-{{ go_arch_map[ansible_architecture] | default(ansible_architecture) }}.tar.gz"
+        checksum: "sha256:{{ __mysqld_exporter_checksum }}"
+      register: _download_binary
+      until: _download_binary is succeeded
+      retries: 5
+      delay: 2
+      delegate_to: localhost
+      check_mode: false
+
+    - name: Unpack mysqld_exporter binary
+      become: false
+      unarchive:
+        src: "/tmp/mysqld_exporter-{{ mysqld_exporter_version }}.linux-{{ go_arch_map[ansible_architecture] | default(ansible_architecture) }}.tar.gz"
+        dest: "/tmp"
+        creates: "/tmp/mysqld_exporter-{{ mysqld_exporter_version }}.linux-{{ go_arch_map[ansible_architecture] | default(ansible_architecture) }}/mysqld_exporter"
+      delegate_to: localhost
+      check_mode: false
+
+    - name: Propagate mysqld_exporter binaries
+      copy:
+        src: "/tmp/mysqld_exporter-{{ mysqld_exporter_version }}.linux-{{ go_arch_map[ansible_architecture] | default(ansible_architecture) }}/mysqld_exporter"
+        dest: "/usr/local/bin/mysqld_exporter"
+        mode: 0755
+        owner: root
+        group: root
+      notify:
+        - restart mysqld exporter
+      when: not ansible_check_mode
+  when: mysqld_exporter_binary_local_dir | length == 0
+
+- name: propagate locally distributed mysqld_exporter binary
+  copy:
+    src: "{{ mysqld_exporter_binary_local_dir }}/mysqld_exporter"
+    dest: "/usr/local/bin/mysqld_exporter"
+    mode: 0755
+    owner: root
+    group: root
+  when: mysqld_exporter_binary_local_dir | length > 0
+  notify: restart mysqld exporter
+
+- name: Copy the mysqld_exporter systemd service file
+  template:
+    src: mysqld_exporter.service.j2
+    dest: /etc/systemd/system/mysqld_exporter.service
+    owner: root
+    group: root
+    mode: 0644
+  no_log: "{{ not lookup('env', 'ANSIBLE_DEBUG') | bool }}"
+  notify:
+    - restart mysqld exporter

tasks/main.yml

@@ -1,65 +1,7 @@
 ---
-- include: preflight.yml
+- import_tasks: preflight.yml
 
-- name: Create the MySQL Exporter group
-  group:
-    name: "{{ __mysqld_exporter_group }}"
-    state: present
-    system: true
-
-- name: Create the MySQL Exporter user
-  user:
-    name: "{{ __mysqld_exporter_user }}"
-    groups: "{{ __mysqld_exporter_group }}"
-    append: true
-    shell: /usr/sbin/nologin
-    system: true
-    createhome: false
-    home: /
-
-- name: Download mysqld_exporter binary to local folder
-  become: false
-  get_url:
-    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"
-    dest: "/tmp/mysqld_exporter-{{ mysqld_exporter_version }}.linux-{{ go_arch_map[ansible_architecture] | default(ansible_architecture) }}.tar.gz"
-    checksum: "sha256:{{ __mysqld_exporter_checksum }}"
-  register: _download_binary
-  until: _download_binary is succeeded
-  retries: 5
-  delay: 2
-  delegate_to: localhost
-  check_mode: false
-
-- name: Unpack mysqld_exporter binary
-  become: false
-  unarchive:
-    src: "/tmp/mysqld_exporter-{{ mysqld_exporter_version }}.linux-{{ go_arch_map[ansible_architecture] | default(ansible_architecture) }}.tar.gz"
-    dest: "/tmp"
-    creates: "/tmp/mysqld_exporter-{{ mysqld_exporter_version }}.linux-{{ go_arch_map[ansible_architecture] | default(ansible_architecture) }}/mysqld_exporter"
-  delegate_to: localhost
-  check_mode: false
-
-- name: Propagate mysqld_exporter binaries
-  copy:
-    src: "/tmp/mysqld_exporter-{{ mysqld_exporter_version }}.linux-{{ go_arch_map[ansible_architecture] | default(ansible_architecture) }}/mysqld_exporter"
-    dest: "/usr/local/bin/mysqld_exporter"
-    mode: 0755
-    owner: root
-    group: root
-  notify:
-    - restart mysqld exporter
-  when: not ansible_check_mode
-
-- name: Copy the mysqld_exporter systemd service file
-  template:
-    src: mysqld_exporter.service.j2
-    dest: /etc/systemd/system/mysqld_exporter.service
-    owner: root
-    group: root
-    mode: 0644
-  no_log: "{{ not lookup('env', 'ANSIBLE_DEBUG') | bool }}"
-  notify:
-    - restart mysqld exporter
+- import_tasks: install.yml
 
 - name: Ensure mysqld_exporter is enabled on boot
   systemd: