✨ Add support for nomad's client template config

README.md

@@ -429,6 +429,23 @@ nomad_host_networks:
 - Install Docker subsystem on nodes?
 - Default value: **false**
 
+### `nomad_template_config`
+- Allow you configure client's [template config](https://developer.hashicorp.com/nomad/docs/configuration/client#template-parameters).
+- Default: {}
+
+Example:
+
+```yaml
+nomad_template_config:
+  vault_retry:
+    attempts: 12
+    backoff: "750ms"
+    max_backoff: "2m"
+  wait:
+    min: "10s"
+    max: "4m"
+```
+
 ### `nomad_plugins`
 - Allow you configure nomad plugins.
 - Default: {}

defaults/main.yml

@@ -30,13 +30,13 @@
 nomad_debug: false
 
 ## Asserts
 nomad_skip_ensure_all_hosts: "{{ lookup('env','NOMAD_SKIP_ENSURE_ALL_HOSTS') | default('false', true) }}"
 
 ## Config Purge
 nomad_allow_purge_config: "{{ lookup('env','NOMAD_ALLOW_PURGE_CONFIG') | default('false', true) }}"
 
 ### Package
 nomad_version: "{{ lookup('env','NOMAD_VERSION') | default('1.1.1', true) }}"
 nomad_architecture_map:
   amd64: amd64
   x86_64: amd64
@@ -45,12 +45,12 @@
   32-bit: "386"
   64-bit: amd64
 nomad_architecture: "{{ nomad_architecture_map[ansible_architecture] }}"
 nomad_pkg: "nomad_{{ nomad_version }}_linux_{{nomad_architecture}}.zip"
 nomad_zip_url: "https://releases.hashicorp.com/nomad/{{ nomad_version }}/nomad_{{ nomad_version }}_linux_{{nomad_architecture}}.zip"
 nomad_checksum_file_url: "https://releases.hashicorp.com/nomad/{{ nomad_version }}/nomad_{{ nomad_version}}_SHA256SUMS"
 nomad_podman_enable: false
 nomad_podman_version: "{{ lookup('env','NOMAD_PODMAN_VERSION') | default('0.3.0', true) }}"
 nomad_podman_pkg: "nomad-driver-podman_{{ nomad_podman_version }}_linux_{{nomad_architecture}}.zip"
 nomad_podman_url: "https://releases.hashicorp.com/nomad-driver-podman/{{ nomad_podman_version }}"
 nomad_podman_zip_url: "{{ nomad_podman_url }}/{{ nomad_podman_pkg }}"
 nomad_podman_checksum_file_url: "{{ nomad_podman_url }}/nomad-driver-podman_{{ nomad_podman_version }}_SHA256SUMS"
@@ -78,9 +78,9 @@
 nomad_region: "global"
 nomad_log_level: "INFO"
 nomad_syslog_enable: true
 nomad_iface: "{{ lookup('env','NOMAD_IFACE') | default(ansible_default_ipv4.interface, true) }}"
 nomad_node_name: "{{ inventory_hostname_short }}"
 nomad_node_role: "{{ lookup('env','NOMAD_NODE_ROLE') | default('client', true) }}"
 nomad_leave_on_terminate: true
 nomad_leave_on_interrupt: false
 nomad_disable_update_check: false
@@ -125,6 +125,7 @@
 nomad_bootstrap_expect: "{{ nomad_servers | count or 3 }}"
 nomad_chroot_env: false
 nomad_plugins: {}
+nomad_template_config: {}
 
 ### Addresses
 nomad_bind_address: "{{ hostvars[inventory_hostname]['ansible_'+ nomad_iface ]['ipv4']['address'] }}"

templates/client.hcl.j2

@@ -77,6 +77,26 @@ client {
     {% endfor -%}
     }
     {% endif %}
+
+    {% macro template_config(config, count=1, width=4) %}
+    {% set next_count = count + 1 %}
+    {% for key, value in config.items() %}
+    {% if value is mapping %}
+    {{ key | indent(count*width, first=True) }} {
+    {{ template_config(value, count=next_count, width=width) }}
+    {{ '}' | indent(count*width, first=True) }}
+    {% else %}
+    {{ key | indent(count*width, first=True) }} = {% if value is string %}"{{ value }}"{% else %}{{ value | string | lower }}{% endif %}
+
+    {% endif %}
+    {% endfor %}
+    {% endmacro %}
+
+    {% if nomad_template_config|length >0 %}
+    template {
+    {{ template_config(nomad_template_config) | replace('\'', '\"') }}
+    }
+    {% endif %}
 }
 
 {% macro plugin_config(config, count=1, width=4) %}