.. _guide_scaleway: *************************** Using Scaleway with Ansible *************************** .. _scaleway_introduction: Introduction ============ `Scaleway <https://scaleway.com>`_ is a cloud provider supported by Ansible, version 2.6 or higher via a dynamic inventory plugin and modules. Those modules are: - :ref:`scaleway_sshkey_module`: adds a public SSH key from a file or value to the Packet infrastructure. Every subsequently-created device will have this public key installed in .ssh/authorized_keys. - :ref:`scaleway_compute_module`: manages servers on Scaleway. You can use this module to create, restart and delete servers. - :ref:`scaleway_volume_module`: manages volumes on Scaleway. .. note:: This guide assumes you are familiar with Ansible and how it works. If you're not, have a look at :ref:`ansible_documentation` before getting started. .. _scaleway_requirements: Requirements ============ The Scaleway modules and inventory script connect to the Scaleway API using `Scaleway REST API <https://developer.scaleway.com>`_. To use the modules and inventory script you'll need a Scaleway API token. You can generate an API token via the Scaleway console `here <https://cloud.scaleway.com/#/credentials>`__. The simplest way to authenticate yourself is to set the Scaleway API token in an environment variable: .. code-block:: bash $ export SCW_TOKEN=00000000-1111-2222-3333-444444444444 If you're not comfortable exporting your API token, you can pass it as a parameter to the modules using the ``api_token`` argument. If you want to use a new SSH keypair in this tutorial, you can generate it to ``./id_rsa`` and ``./id_rsa.pub`` as: .. code-block:: bash $ ssh-keygen -t rsa -f ./id_rsa If you want to use an existing keypair, just copy the private and public key over to the playbook directory. .. _scaleway_add_sshkey: How to add an SSH key? ====================== Connection to Scaleway Compute nodes use Secure Shell. SSH keys are stored at the account level, which means that you can re-use the same SSH key in multiple nodes. The first step to configure Scaleway compute resources is to have at least one SSH key configured. :ref:`scaleway_sshkey_module` is a module that manages SSH keys on your Scaleway account. You can add an SSH key to your account by including the following task in a playbook: .. code-block:: yaml - name: "Add SSH key" scaleway_sshkey: ssh_pub_key: "ssh-rsa AAAA..." state: "present" The ``ssh_pub_key`` parameter contains your ssh public key as a string. Here is an example inside a playbook: .. code-block:: yaml # SCW_API_KEY='XXX' ansible-playbook ./test/legacy/scaleway_ssh_playbook.yml - name: Test SSH key lifecycle on a Scaleway account hosts: localhost gather_facts: no environment: SCW_API_KEY: "" tasks: - scaleway_sshkey: ssh_pub_key: "ssh-rsa AAAAB...424242 developer@example.com" state: present register: result - assert: that: - result is success and result is changed .. _scaleway_create_instance: How to create a compute instance? ================================= Now that we have an SSH key configured, the next step is to spin up a server! :ref:`scaleway_compute_module` is a module that can create, update and delete Scaleway compute instances: .. code-block:: yaml - name: Create a server scaleway_compute: name: foobar state: present image: 00000000-1111-2222-3333-444444444444 organization: 00000000-1111-2222-3333-444444444444 region: ams1 commercial_type: START1-S Here are the parameter details for the example shown above: - ``name`` is the name of the instance (the one that will show up in your web console). - ``image`` is the UUID of the system image you would like to use. A list of all images is available for each availability zone. - ``organization`` represents the organization that your account is attached to. - ``region`` represents the Availability Zone which your instance is in (for this example, par1 and ams1). - ``commercial_type`` represents the name of the commercial offers. You can check out the Scaleway pricing page to find which instance is right for you. Take a look at this short playbook to see a working example using ``scaleway_compute``: .. code-block:: yaml # SCW_TOKEN='XXX' ansible-playbook ./test/legacy/scaleway_compute.yml - name: Test compute instance lifecycle on a Scaleway account hosts: localhost gather_facts: no environment: SCW_API_KEY: "" tasks: - name: Create a server register: server_creation_task scaleway_compute: name: foobar state: present image: 00000000-1111-2222-3333-444444444444 organization: 00000000-1111-2222-3333-444444444444 region: ams1 commercial_type: START1-S wait: true - debug: var=server_creation_task - assert: that: - server_creation_task is success - server_creation_task is changed - name: Run it scaleway_compute: name: foobar state: running image: 00000000-1111-2222-3333-444444444444 organization: 00000000-1111-2222-3333-444444444444 region: ams1 commercial_type: START1-S wait: true tags: - web_server register: server_run_task - debug: var=server_run_task - assert: that: - server_run_task is success - server_run_task is changed .. _scaleway_dynamic_inventory_tutorial: Dynamic Inventory Script ======================== Ansible ships with :ref:`scaleway_inventory`. You can now get a complete inventory of your Scaleway resources through this plugin and filter it on different parameters (``regions`` and ``tags`` are currently supported). Let's create an example! Suppose that we want to get all hosts that got the tag web_server. Create a file named ``scaleway_inventory.yml`` with the following content: .. code-block:: yaml plugin: scaleway regions: - ams1 - par1 tags: - web_server This inventory means that we want all hosts that got the tag ``web_server`` on the zones ``ams1`` and ``par1``. Once you have configured this file, you can get the information using the following command: :: $ ansible-inventory --list -i scaleway_inventory.yml { "_meta": { "hostvars": { "dd8e3ae9-0c7c-459e-bc7b-aba8bfa1bb8d": { "ansible_verbosity": 6, "arch": "x86_64", "commercial_type": "START1-S", "hostname": "foobar", "ipv4": "192.0.2.1", "organization": "00000000-1111-2222-3333-444444444444", "state": "running", "tags": [ "web_server" ] } } }, "all": { "children": [ "ams1", "par1", "ungrouped", "web_server" ] }, "ams1": {}, "par1": { "hosts": [ "dd8e3ae9-0c7c-459e-bc7b-aba8bfa1bb8d" ] }, "ungrouped": {}, "web_server": { "hosts": [ "dd8e3ae9-0c7c-459e-bc7b-aba8bfa1bb8d" ] } } As you can see, we get different groups of hosts. ``par1`` and ``ams1`` are groups based on location. ``web_server`` is a group based on a tag. In case a filter parameter is not defined, the plugin supposes all values possible are wanted. This means that for each tag that exists on your Scaleway compute nodes, a group based on each tag will be created. Scaleway S3 object storage ========================== `Object Storage <https://www.scaleway.com/object-storage>`_ allows you to store any kind of objects (documents, images, videos, etc.). As the Scaleway API is S3 compatible, Ansible supports it natively through the modules: :ref:`s3_bucket_module`, :ref:`aws_s3_module`. You can find many examples in ``./test/legacy/roles/scaleway_s3`` .. code-block:: yaml - hosts: myserver vars: scaleway_region: nl-ams s3_url: https://s3.nl-ams.scw.cloud environment: # AWS_ACCESS_KEY matches your scaleway organization id available at https://cloud.scaleway.com/#/account AWS_ACCESS_KEY: 00000000-1111-2222-3333-444444444444 # AWS_SECRET_KEY matches a secret token that you can retrieve at https://cloud.scaleway.com/#/credentials AWS_SECRET_KEY: aaaaaaaa-bbbb-cccc-dddd-eeeeeeeeeeee module_defaults: group/aws: s3_url: '{{ s3_url }}' region: '{{ scaleway_region }}' tasks: # use a fact instead of a variable, otherwise template is evaluate each time variable is used - set_fact: bucket_name: "{{ 99999999 | random | to_uuid }}" # "requester_pays:" is mandatory because Scaleway doesn't implement related API # another way is to use aws_s3 and "mode: create" ! - s3_bucket: name: '{{ bucket_name }}' requester_pays: - name: Another way to create the bucket aws_s3: bucket: '{{ bucket_name }}' mode: create encrypt: false register: bucket_creation_check - name: add something in the bucket aws_s3: mode: put bucket: '{{ bucket_name }}' src: /tmp/test.txt # needs to be created before object: test.txt encrypt: false # server side encryption must be disabled