Optimise testing and fix CentOS GeoIP module (#185)

* Use slim Debian images for testing 
* Update `volume_mounts` to `volumes`
* Update and move default Dockerfile
* Use normal centos image
* Add epel-release prerequisite to CentOS modules
* Separate module and template tests

Author: alessfg

.travis.yml

@@ -5,8 +5,9 @@ services:
   - docker
 env:
   - scenario: default
+  - scenario: module
   - scenario: stable_push
-  - scenario: template_module
+  - scenario: template
   - scenario: unit
 before_install:
   - sudo apt-get -qq update

molecule/common/Dockerfile.j2

@@ -0,0 +1,42 @@
+# Molecule managed
+
+{% if item.registry is defined %}
+FROM {{ item.registry.url }}/{{ item.image }}
+{% else %}
+FROM {{ item.image }}
+{% endif %}
+
+{% if item.env is defined %}
+{% for var, value in item.env.items() %}
+{% if value %}
+ENV {{ var }} {{ value }}
+{% endif %}
+{% endfor %}
+{% endif %}
+
+RUN \
+  if [ $(command -v apt-get) ]; then \
+    apt-get update \
+    && apt-get install -y python sudo bash ca-certificates iproute2 curl \
+    && apt-get clean; \
+  elif [ $(command -v dnf) ]; then \
+    dnf makecache \
+    && dnf --assumeyes install python sudo python-devel python*-dnf bash iproute \
+    && dnf clean all; \
+  elif [ $(command -v yum) ]; then \
+    yum makecache fast \
+    && yum install -y python sudo yum-plugin-ovl bash iproute \
+    && sed -i 's/plugins=0/plugins=1/g' /etc/yum.conf \
+    && yum clean all; \
+  elif [ $(command -v zypper) ]; then \
+    zypper refresh \
+    && zypper install -y python sudo bash python-xml iproute2 \
+    && zypper clean -a; \
+  elif [ $(command -v apk) ]; then \
+    apk update \
+    && apk add --no-cache python sudo bash ca-certificates; \
+  elif [ $(command -v xbps-install) ]; then \
+    xbps-install -Syu \
+    && xbps-install -y python sudo bash ca-certificates iproute2 \
+    && xbps-remove -O; \
+  fi

molecule/default/Dockerfile.j2

@@ -6,20 +6,27 @@ lint:
 platforms:
   - name: centos-6
     image: centos:6
+    dockerfile: ../common/Dockerfile.j2
   - name: centos-7
-    image: centos/systemd
+    image: centos:7
+    dockerfile: ../common/Dockerfile.j2
     privileged: True
-    volume_mounts:
+    volumes:
       - "/sys/fs/cgroup:/sys/fs/cgroup:rw"
     command: "/usr/sbin/init"
+    tty: True
   - name: debian-stretch
-    image: debian:stretch
+    image: debian:stretch-slim
+    dockerfile: ../common/Dockerfile.j2
   - name: debian-buster
-    image: debian:buster
+    image: debian:buster-slim
+    dockerfile: ../common/Dockerfile.j2
   - name: ubuntu-xenial
     image: ubuntu:xenial
+    dockerfile: ../common/Dockerfile.j2
   - name: ubuntu-bionic
     image: ubuntu:bionic
+    dockerfile: ../common/Dockerfile.j2
 provisioner:
   name: ansible
   lint:

molecule/default/molecule.yml

@@ -4,11 +4,11 @@
   pre_tasks:
     - name: "Set repo if Debian"
       set_fact:
-        version: "=1.17.4-1~{{ ansible_distribution_release }}"
+        version: "=1.17.6-1~{{ ansible_distribution_release }}"
       when: ansible_os_family == "Debian"
     - name: "Set repo if RedHat"
       set_fact:
-        version: "-1.17.4-1.el{{ ansible_distribution_major_version }}.ngx"
+        version: "-1.17.6-1.el{{ ansible_distribution_major_version }}.ngx"
       when: ansible_os_family == "RedHat"
   roles:
     - role: ansible-role-nginx

molecule/default/playbook.yml

@@ -0,0 +1,37 @@
+---
+driver:
+  name: docker
+lint:
+  name: yamllint
+platforms:
+  - name: centos-6
+    image: centos:6
+    dockerfile: ../common/Dockerfile.j2
+  - name: centos-7
+    image: centos:7
+    dockerfile: ../common/Dockerfile.j2
+    privileged: True
+    volumes:
+      - "/sys/fs/cgroup:/sys/fs/cgroup:rw"
+    command: "/usr/sbin/init"
+    tty: True
+  - name: debian-stretch
+    image: debian:stretch-slim
+    dockerfile: ../common/Dockerfile.j2
+  - name: debian-buster
+    image: debian:buster-slim
+    dockerfile: ../common/Dockerfile.j2
+  - name: ubuntu-xenial
+    image: ubuntu:xenial
+    dockerfile: ../common/Dockerfile.j2
+  - name: ubuntu-bionic
+    image: ubuntu:bionic
+    dockerfile: ../common/Dockerfile.j2
+provisioner:
+  name: ansible
+  lint:
+    name: ansible-lint
+verifier:
+  name: testinfra
+  lint:
+    name: flake8

molecule/module/molecule.yml

@@ -0,0 +1,16 @@
+---
+- name: Converge
+  hosts: all
+  roles:
+    - role: ansible-role-nginx
+  vars:
+    nginx_debug_output: true
+
+    nginx_modules:
+      njs: true
+      perl: true
+      waf: false
+      geoip: true
+      image_filter: true
+      rtmp: true
+      xslt: true

molecule/module/playbook.yml

@@ -0,0 +1,29 @@
+import os
+
+import testinfra.utils.ansible_runner
+
+testinfra_hosts = testinfra.utils.ansible_runner.AnsibleRunner(os.environ['MOLECULE_INVENTORY_FILE']).get_hosts('all') # noqa E501
+
+
+def test_nginx_is_installed(host):
+    ngx = host.package("nginx")
+    assert ngx.is_installed
+
+
+def test_nginx_running_and_enabled(host):
+    ngx = host.service("nginx")
+    assert ngx.is_running
+    assert ngx.is_enabled
+
+
+def test_hosts_file(host):
+    ngx = host.file('/etc/hosts')
+    assert ngx.exists
+    assert ngx.user == 'root'
+    assert ngx.group == 'root'
+
+
+def test_endpoint(host):
+    command = """curl -I http://localhost/"""
+    cmd = host.run(command)
+    assert '200 OK' in cmd.stdout

molecule/module/tests/test_default.py

@@ -9,20 +9,27 @@ lint:
 platforms:
   - name: centos-6
     image: centos:6
+    dockerfile: ../common/Dockerfile.j2
   - name: centos-7
-    image: centos/systemd
+    image: centos:7
+    dockerfile: ../common/Dockerfile.j2
     privileged: True
-    volume_mounts:
+    volumes:
       - "/sys/fs/cgroup:/sys/fs/cgroup:rw"
     command: "/usr/sbin/init"
+    tty: True
   - name: debian-stretch
-    image: debian:stretch
+    image: debian:stretch-slim
+    dockerfile: ../common/Dockerfile.j2
   - name: debian-buster
-    image: debian:buster
+    image: debian:buster-slim
+    dockerfile: ../common/Dockerfile.j2
   - name: ubuntu-xenial
     image: ubuntu:xenial
+    dockerfile: ../common/Dockerfile.j2
   - name: ubuntu-bionic
     image: ubuntu:bionic
+    dockerfile: ../common/Dockerfile.j2
 provisioner:
   name: ansible
   lint: