Initial commit of MariaDB role

Change-Id: I8d35374da716712ecf0ab1f748c952cbc2635969
diff --git a/molecule/default/converge.yml b/molecule/default/converge.yml
new file mode 100644
index 0000000..f73f499
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+++ b/molecule/default/converge.yml
@@ -0,0 +1,19 @@
+---
+# mariadb molecule/default/verify.yml
+#
+# SPDX-FileCopyrightText: © 2020 Open Networking Foundation <support@opennetworking.org>
+# SPDX-License-Identifier: Apache-2.0
+
+- name: Converge
+  hosts: all
+  vars:
+    mariadb_users:
+      - name: "exampleuser"
+        password: "examplepass"
+        priv: "exampledb.*:ALL"
+    mariadb_databases:
+      - name: "exampledb"
+  tasks:
+    - name: "Include mariadb"
+      include_role:
+        name: "mariadb"
diff --git a/molecule/default/molecule.yml b/molecule/default/molecule.yml
new file mode 100644
index 0000000..b063272
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+++ b/molecule/default/molecule.yml
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+---
+# mariadb molecule/default/molecule.yml
+#
+# SPDX-FileCopyrightText: © 2020 Open Networking Foundation <support@opennetworking.org>
+# SPDX-License-Identifier: Apache-2.0
+
+dependency:
+  name: galaxy
+driver:
+  name: docker
+platforms:
+  - name: "ubuntu-18.04-priv"
+    image: "quay.io/paulfantom/molecule-systemd:ubuntu-18.04"
+    privileged: true
+    volumes:
+      - "/sys/fs/cgroup:/sys/fs/cgroup:ro"
+  - name: "debian-10-priv"
+    image: "quay.io/paulfantom/molecule-systemd:debian-10"
+    privileged: true
+    volumes:
+      - "/sys/fs/cgroup:/sys/fs/cgroup:ro"
+provisioner:
+  name: ansible
+  playbooks:
+    prepare: prepare.yml
+  inventory:
+    host_vars:
+      debian-10-priv:
+        ansible_python_interpreter: /usr/bin/python3
+  env:
+    ANSIBLE_COLLECTIONS_PATHS: >-
+      ~/Documents/onf/infra/ansible:~/.ansible/collections:/usr/share/ansible/collections
+verifier:
+  name: ansible
diff --git a/molecule/default/prepare.yml b/molecule/default/prepare.yml
new file mode 100644
index 0000000..fb8f1ed
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+++ b/molecule/default/prepare.yml
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+---
+# mariadb molecule/default/prepare.yml
+#
+# SPDX-FileCopyrightText: © 2020 Open Networking Foundation <support@opennetworking.org>
+# SPDX-License-Identifier: Apache-2.0
+
+- name: Prepare
+  hosts: all
+
+  pre_tasks:
+    - name: Install GPG to support adding apt repo keys
+      apt:
+        name: "gpg"
+        state: "present"
+        update_cache: true
diff --git a/molecule/default/verify.yml b/molecule/default/verify.yml
new file mode 100644
index 0000000..95b17a1
--- /dev/null
+++ b/molecule/default/verify.yml
@@ -0,0 +1,32 @@
+---
+# mariadb molecule/default/verify.yml
+#
+# SPDX-FileCopyrightText: © 2020 Open Networking Foundation <support@opennetworking.org>
+# SPDX-License-Identifier: Apache-2.0
+
+- name: Verify
+  hosts: all
+  tasks:
+
+    - name: Collect MariaDB information
+      mysql_info:
+        login_user: root
+        login_unix_socket: /var/run/mysqld/mysqld.sock
+      register: mariadb_info
+
+    - name: Print MariaDB info
+      debug:
+        var: mariadb_info
+
+    - name: Verify MariaDB version
+      assert:
+        that:
+          - mariadb_info['version']['major'] == 10
+          - mariadb_info['version']['minor'] == 5
+
+    - name: Check that user can connect to database
+      community.mysql.mysql_query:
+        login_db: "exampledb"
+        query: "show tables;"
+        login_user: "exampleuser"
+        login_password: "examplepass"