ansible-collection-prometheus/roles/node_exporter/tasks/preflight.yml
gardar e99b807340
fix(lint): fatal lint errors
Signed-off-by: gardar <gardar@users.noreply.github.com>
2022-11-25 15:39:17 +00:00

111 lines
3.8 KiB
YAML

---
- name: Assert usage of systemd as an init system
ansible.builtin.assert:
that: ansible_service_mgr == 'systemd'
msg: "This role only works with systemd"
- name: Get systemd version
ansible.builtin.command: systemctl --version
changed_when: false
check_mode: false
register: __systemd_version
tags:
- skip_ansible_lint
- name: Set systemd version fact
ansible.builtin.set_fact:
node_exporter_systemd_version: "{{ __systemd_version.stdout_lines[0] | regex_replace('^systemd\\s(\\d+).*$', '\\1') }}"
- name: Naive assertion of proper listen address
ansible.builtin.assert:
that:
- "':' in node_exporter_web_listen_address"
- name: Assert collectors are not both disabled and enabled at the same time
ansible.builtin.assert:
that:
- "item not in node_exporter_enabled_collectors"
with_items: "{{ node_exporter_disabled_collectors }}"
- block:
- name: Assert that TLS key and cert path are set
ansible.builtin.assert:
that:
- "node_exporter_tls_server_config.cert_file is defined"
- "node_exporter_tls_server_config.key_file is defined"
- name: Check existence of TLS cert file
ansible.builtin.stat:
path: "{{ node_exporter_tls_server_config.cert_file }}"
register: __node_exporter_cert_file
- name: Check existence of TLS key file
ansible.builtin.stat:
path: "{{ node_exporter_tls_server_config.key_file }}"
register: __node_exporter_key_file
- name: Assert that TLS key and cert are present
ansible.builtin.assert:
that:
- "{{ __node_exporter_cert_file.stat.exists }}"
- "{{ __node_exporter_key_file.stat.exists }}"
when: node_exporter_tls_server_config | length > 0
- name: Check if node_exporter is installed
ansible.builtin.stat:
path: "{{ _node_exporter_binary_install_dir }}/node_exporter"
register: __node_exporter_is_installed
check_mode: false
tags:
- node_exporter_install
- name: Gather currently installed node_exporter version (if any)
ansible.builtin.command: "{{ _node_exporter_binary_install_dir }}/node_exporter --version"
args:
warn: false
changed_when: false
register: __node_exporter_current_version_output
check_mode: false
when: __node_exporter_is_installed.stat.exists
tags:
- node_exporter_install
- skip_ansible_lint
- block:
- name: Get latest release
ansible.builtin.uri:
url: "https://api.github.com/repos/prometheus/node_exporter/releases/latest"
method: GET
return_content: true
status_code: 200
body_format: json
ansible.builtin.user: "{{ lookup('env', 'GH_USER') | default(omit) }}"
password: "{{ lookup('env', 'GH_TOKEN') | default(omit) }}"
no_log: "{{ not lookup('env', 'MOLECULE_DEBUG') | bool }}"
register: _latest_release
until: _latest_release.status == 200
retries: 5
- name: "Set node_exporter version to {{ _latest_release.json.tag_name[1:] }}"
ansible.builtin.set_fact:
node_exporter_version: "{{ _latest_release.json.tag_name[1:] }}"
when:
- node_exporter_version == "latest"
- node_exporter_binary_local_dir | length == 0
delegate_to: localhost
run_once: true
- block:
- name: Get checksum list from github
ansible.builtin.set_fact:
_checksums: "{{ lookup('url', 'https://github.com/prometheus/node_exporter/releases/download/v' + node_exporter_version + '/sha256sums.txt', wantlist=True) | list }}"
run_once: true
- name: "Get checksum for {{ go_arch }}"
ansible.builtin.set_fact:
node_exporter_checksum: "{{ item.split(' ')[0] }}"
with_items: "{{ _checksums }}"
when:
- "('linux-' + go_arch + '.tar.gz') in item"
delegate_to: localhost
when: node_exporter_binary_local_dir | length == 0