add molecule integration-test

.github/workflows/molecule.yml

@@ -45,6 +45,8 @@ jobs:
             scenario: 'default'
           - distro: 'ubuntu-22.04'
             scenario: 'tls-and-basic-auth'
+          - distro: 'ubuntu-22.04'
+            scenario: 'integration-test'
 
     steps:
       - name: 'Checkout the codebase'

molecule/integration-test/converge.yml

@@ -0,0 +1,8 @@
+---
+- name: 'Converge'
+  hosts: all
+  roles:
+    - role: antmelekhin.postgres_exporter
+      postgres_exporter_data_source_uri: 'localhost:5432/molecule?sslmode=disable'
+      postgres_exporter_data_source_user: 'exporter'
+      postgres_exporter_data_source_pass: 'Passw0rd'

molecule/integration-test/molecule.yml

@@ -0,0 +1,23 @@
+---
+role_name_check: 2
+dependency:
+  name: 'galaxy'
+  enabled: true
+driver:
+  name: 'docker'
+platforms:
+  - name: 'postgres_exporter-${IMAGE:-docker-systemd}-${TAG:-ubuntu-22.04}${TOX_ENVNAME}'
+    image: '${NAMESPACE:-antmelekhin}/${IMAGE:-docker-systemd}:${TAG:-ubuntu-22.04}'
+    published_ports:
+      - '0.0.0.0:9187:9187/udp'
+      - '0.0.0.0:9187:9187/tcp'
+    volumes:
+      - '/sys/fs/cgroup:/sys/fs/cgroup:rw'
+      - '/var/lib/containerd'
+    cgroupns_mode: 'host'
+    privileged: true
+    pre_build_image: true
+provisioner:
+  name: 'ansible'
+verifier:
+  name: 'ansible'

molecule/integration-test/prepare.yml

@@ -0,0 +1,42 @@
+---
+- name: 'Prepare an Ansible host for GitHub Actions'
+  hosts: localhost
+  tasks:
+    - name: 'Install tar for tasks delegated to the localhost'
+      community.general.apk:
+        name: 'tar'
+        update_cache: true
+      when: ansible_os_family == 'Alpine'
+
+- name: 'Prepare'
+  hosts: all
+  vars:
+    locale: 'en_US.UTF-8'
+
+  pre_tasks:
+    - name: 'Update APT cache'
+      ansible.builtin.apt:
+        update_cache: true
+        cache_valid_time: 600
+      when: ansible_os_family == 'Debian'
+
+    - name: 'Set database locale if using RedHat 8'
+      ansible.builtin.set_fact:
+        locale: 'C.UTF-8'
+      when:
+        - ansible_os_family == 'RedHat' and
+          ansible_distribution_major_version == '8'
+
+  roles:
+    - role: geerlingguy.postgresql
+      postgresql_users:
+        - name: 'exporter'
+          password: 'Passw0rd'
+          role_attr_flags: 'SUPERUSER'
+      postgresql_databases:
+        - name: 'molecule'
+          lc_collate: '{{ locale }}'
+          lc_ctype: '{{ locale }}'
+          encoding: 'UTF-8'
+          template: 'template0'
+          owner: 'exporter'

molecule/integration-test/verify.yml

@@ -0,0 +1,22 @@
+---
+- name: 'Verify'
+  hosts: all
+  gather_facts: false
+
+  tasks:
+    - name: 'Gathering Service Facts'
+      ansible.builtin.service_facts:
+
+    - name: 'Assert that Postgres Exporter service is enabled and running'
+      ansible.builtin.assert:
+        that:
+          - ansible_facts.services['postgres_exporter.service'].state == 'running'
+          - ansible_facts.services['postgres_exporter.service'].status == 'enabled'
+
+    - name: 'Verify the Postgres Exporter is responding to requests'
+      ansible.builtin.uri:
+        url: 'http://{{ ansible_host }}:9187/metrics'
+      register: __postgres_exporter_response
+      until: __postgres_exporter_response.status == 200
+      retries: 120
+      delay: 5