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Merge pull request #67 from stackhpc/add-openbao
feat: add `openbao` role
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‎.github/workflows/pull_request.yml‎

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exclude:
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- python_version: "3.9"
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ansible_version: "2.18"
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type:
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- openbao
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- vault
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steps:
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- name: Github Checkout 🛎
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uses: actions/checkout@v4
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- name: Run integration tests 🧪
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run: |
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ansible-playbook -i tests/inventory -v tests/*.yml -e ansible_python_interpreter=$(which python3)
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ansible-playbook -i tests/inventory -v tests/test_${{ matrix.type }}.yml -e ansible_python_interpreter=$(which python3)

‎galaxy.yml‎

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name: hashicorp
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description: >
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Hashicorp Vault/Consul deployment and configuration
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version: "2.5.1"
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version: "2.6.0"
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readme: "README.md"
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authors:
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- "Michał Nasiadka"
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- "Pierre Riteau"
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- "Bartosz Bezak"
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- "Kyle Dean"
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- "Jack Hodgkiss"
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dependencies:
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"community.docker": "*"
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license:
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- infrastructure
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- security
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- vault
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- openbao
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repository: "https://github.com/stackhpc/ansible-collection-hashicorp"

‎roles/openbao/README.md‎

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This role deploys and initializes OpenBao with a Raft backend.
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Requirements
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------------
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`ansible-modules-hashivault` Python package installed on the Ansible control host
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`hvac` Python package installed on the remote hosts
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Note that since version `4.6.4`, `ansible-modules-hashivault` requires
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`ansible>4`.
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Role variables
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--------------
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* Common variables
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* Optional
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* `openbao_registry_url`: Address of the Docker registry used to authenticate (default: "")
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* `openbao_registry_username`: Username used to authenticate with the Docker registry (default: "")
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* `openbao_registry_password`: Password used to authenticate with the Docker registry (default: "")
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* OpenBao
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* Mandatory
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* `openbao_cluster_name`: OpenBao cluster name (e.g. "prod_cluster")
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* `openbao_config_dir`: Directory into which to bind mount OpenBao configuration
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* Optional
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* `openbao_bind_address`: Which IP address should OpenBao bind to (default: "127.0.0.1")
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* `openbao_api_addr`: OpenBao [API addr](https://openbao.org/docs/configuration/#high-availability-parameters) - Full URL including protocol and port (default: "http://127.0.0.1:8200")
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* `openbao_init_addr`: OpenBao init addr (used only for initialisation purposes) - full URL including protocol and port (default: "http://127.0.0.1:8200")
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* `openbao_docker_name`: Docker - under which name to run the OpenBao image (default: "bao")
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* `openbao_docker_image`: Docker image for OpenBao (default: "openbao/openbao")
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* `openbao_docker_tag`: Docker image tag for OpenBao (default: "latest")
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* `openbao_extra_volumes`: List of `"<host_location>:<container_mountpoint>"`
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* `openbao_ca_cert`: Path to CA certificate used to verify OpenBao server TLS cert
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* `openbao_tls_key`: Path to TLS key to use by OpenBao
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* `openbao_tls_cert`: Path to TLS cert to use by OpenBao
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* `openbao_log_keys`: Whether to log the root token and unseal keys in the Ansible output. Default `false`
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* `openbao_set_keys_fact`: Whether to set a `openbao_keys` fact containing the root token and unseal keys. Default `false`
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* `openbao_write_keys_file`: Whether to write the root token and unseal keys to a file. Default `false`
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* `openbao_write_keys_file_host`: Host on which to write root token and unseal keys. Default `localhost`
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* `openbao_write_keys_file_path`: Path of file to write root token and unseal keys. Default `bao-keys.json`
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Root and unseal keys
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--------------------
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After OpenBao has been initialised, a root token and a set of unseal keys are emitted.
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It is very important to store these keys safely and securely.
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This role provides several mechanisms for extracting the root token and unseal keys:
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1. Print to Ansible log output (`openbao_log_keys`)
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1. Set a `openbao_keys` fact (`openbao_set_keys_fact`)
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1. Write to a file (`openbao_write_keys_file`)
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In each case, the output will contain the following:
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```json
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{
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"keys": [
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"...",
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"..."
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],
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"keys_base64": [
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"...",
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"..."
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],
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"root_token": "..."
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}
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```
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Example playbook (used with OpenStack Kayobe)
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---------------------------------------------
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```
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---
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- name: Prepare for OpenBao role
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any_errors_fatal: True
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gather_facts: True
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hosts: consul
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tasks:
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- name: Ensure /opt/kayobe/bao exists
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file:
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path: /opt/kayobe/bao
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state: directory
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- name: Template out tls key and cert
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vars:
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tls_files:
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- content: "{{ secrets_external_tls_cert }}"
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dest: "tls.cert"
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- content: "{{ secrets_external_tls_key }}"
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dest: "tls.key"
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copy:
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content: "{{ item.content }}"
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dest: "/opt/kayobe/bao/{{ item.dest }}"
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owner: 100
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group: 1001
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mode: 0600
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loop: "{{ tls_files }}"
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no_log: True
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become: true
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- name: Run OpenBao role
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any_errors_fatal: True
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gather_facts: True
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hosts: consul
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roles:
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- role: stackhpc.hashicorp.openbao
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openbao_bind_address: "{{ external_net_ips[inventory_hostname] }}"
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openbao_api_addr: "https://{{ external_net_fqdn }}:8200"
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openbao_config_dir: "/opt/kayobe/bao"
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```
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Example post-config playbook to enable secrets engines:
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```
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---
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- name: OpenBao post deployment config
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any_errors_fatal: True
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gather_facts: True
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hosts: bao
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tasks:
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- name: Enable bao secrets engines
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hashivault_secret_engine:
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url: "https://vault.example.com:8200"
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token: "{{ secrets_openbao_keys.root_token }}"
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name: pki
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backend: pki
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run_once: True
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```
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NOTE: secrets_external_tls_cert/key are variables in Kayobe's secrets.yml

‎roles/openbao/defaults/main.yml‎

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---
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openbao_registry_url: ""
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openbao_registry_username: ""
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openbao_registry_password: ""
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openbao_docker_name: "bao"
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openbao_docker_image: "openbao/openbao"
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openbao_docker_tag: "latest"
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openbao_cluster_name: ""
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openbao_protocol: "{{ 'https' if openbao_tls_key and openbao_tls_cert else 'http' }}"
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# Allow openbao_vip_url and openbao_vip_address for backwards compatibility.
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openbao_vip_address: "{{ openbao_vip_url | default(openbao_bind_address) }}"
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openbao_api_addr: "{{ openbao_protocol ~ '://' ~ openbao_vip_address ~ ':8200' }}"
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openbao_bind_address: "127.0.0.1"
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openbao_init_addr: "http://127.0.0.1:8200"
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openbao_tls_key: ""
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openbao_tls_cert: ""
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openbao_config_dir: ""
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openbao_config: >
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{
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"cluster_name": "{{ openbao_cluster_name }}",
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"ui": false,
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"api_addr": "{{ openbao_api_addr }}",
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"cluster_addr": "http://127.0.0.1:8201",
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"listener": [{
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"tcp": {
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"address": "{{ openbao_bind_address }}:8200",
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{% if openbao_tls_key and openbao_tls_cert %}
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"tls_min_version": "tls12",
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"tls_key_file": "/bao/config/{{ openbao_tls_key }}",
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"tls_cert_file": "/bao/config/{{ openbao_tls_cert }}"
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{% else %}
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"tls_disable": "true"
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{% endif %}
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}{% if openbao_bind_address != '127.0.0.1' %},
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},
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{
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"tcp": {
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"address": "127.0.0.1:8200",
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"tls_disable": "true"
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}
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{% endif %}
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}],
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"storage": {
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"raft": {
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"node_id": "raft_{{ ansible_facts.nodename }}",
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"path": "/openbao/file"
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}
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},
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"telemetry": {
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"prometheus_retention_time": "30s",
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"disable_hostname": true
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}
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}
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# Docker options
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openbao_container: {}
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# Docker volumes
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# Default volume mapping
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_openbao_default_volumes:
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- "{{ openbao_config_dir | default('openbao_config', true) }}:/openbao/config"
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- "openbao_file:/openbao/file"
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- "openbao_logs:/openbao/logs"
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# Exposed for playbooks to access later
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openbao_extra_volumes: []
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# Combined volume lists
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_openbao_volumes: "{{ _openbao_default_volumes + openbao_extra_volumes }}"
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# Whether to log the root token and unseal keys in the Ansible output.
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openbao_log_keys: false
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# Whether to set a openbao_keys fact containing the root token and unseal keys.
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openbao_set_keys_fact: false
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# Whether to write the root token and unseal keys to a file.
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openbao_write_keys_file: false
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# Host on which to write root token and unseal keys.
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openbao_write_keys_file_host: localhost
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# Path of file to write root token and unseal keys.
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openbao_write_keys_file_path: bao-keys.json

‎roles/openbao/meta/main.yml‎

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---
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# WORKAROUND: Without this, we see the following in some setups:
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# ERROR! couldn't resolve module/action 'hashivault_unseal'. This often indicates a misspelling, missing collection, or incorrect module path.
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# Seen using Kayobe on Ansible 2.10.17, running modules on a remote host.
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collections:
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- community.docker

‎roles/openbao/tasks/main.yml‎

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---
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- name: "Vault Prerequisites"
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import_tasks: prereqs.yml
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- name: "Deploy OpenBao"
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import_tasks: openbao.yml

‎roles/openbao/tasks/openbao.yml‎

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---
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- name: Ensure OpenBao container is running
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docker_container:
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name: "{{ openbao_docker_name }}"
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image: "{{ openbao_docker_image }}:{{ openbao_docker_tag }}"
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network_mode: host
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etc_hosts: "{{ openbao_container.etc_hosts | default(omit) }}"
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capabilities: IPC_LOCK
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volumes: "{{ _openbao_volumes }}"
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comparisons:
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'*': strict
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restart_policy: "always"
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env:
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BAO_LOCAL_CONFIG: "{{ openbao_config | to_json }}"
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command: >
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server
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become: true
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- name: Check if OpenBao is initialized
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uri:
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url: "{{ openbao_init_addr }}/v1/sys/init"
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register: openbao_init_status
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retries: 50
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delay: 1
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run_once: true
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until: openbao_init_status.status == 200
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- name: "Initialize OpenBao"
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run_once: true
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when:
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- not openbao_init_status.json.initialized
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block:
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- name: Initialize OpenBao
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hashivault_init:
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url: "{{ openbao_init_addr }}"
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ca_cert: "{{ openbao_ca_cert | default(omit) }}"
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no_log: true
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register: openbao_keys_result
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- name: Print OpenBao keys
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debug:
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var: openbao_keys_result
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when:
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- openbao_log_keys | bool
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- name: Set openbao_keys fact
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set_fact:
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openbao_keys: "{{ openbao_keys_result }}"
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when:
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- openbao_set_keys_fact | bool
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- name: Write OpenBao keys to a file
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copy:
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content: "{{ openbao_keys_result | to_nice_json }}"
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dest: "{{ openbao_write_keys_file_path }}"
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mode: "0600"
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delegate_to: "{{ openbao_write_keys_file_host }}"
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when:
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- openbao_write_keys_file | bool

‎roles/openbao/tasks/prereqs.yml‎

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---
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- name: Log into Docker registry
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docker_login:
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registry: "{{ openbao_registry_url }}"
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username: "{{ openbao_registry_username }}"
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password: "{{ openbao_registry_password }}"
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when: openbao_registry_username | length > 0
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become: true

‎tests/inventory‎

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[consul]
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localhost ansible_connection=local
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[openbao]
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localhost ansible_connection=local

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