Implement nats ansible role

data/ansible/roles/nats/defaults/main.yaml

@@ -0,0 +1,8 @@
+---
+nats_version: 2.9.17
+
+nats_user: nats
+nats_group: nats
+
+service_enabled: true
+service_state: started

data/ansible/roles/nats/tasks/main.yaml

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+---
+- name: Create user and group for NATS
+  become: yes
+  block:
+  - group:
+      name: "{{ nats_group }}"
+      state: present
+  - user:
+      name: "{{ nats_user }}"
+      group: "{{ nats_group }}"
+      system: yes
+      state: present
+
+- name: Download NATS server
+  get_url:
+    url: "https://github.com/nats-io/nats-server/releases/download/v{{ nats_version }}/nats-server-v{{ nats_version }}-linux-amd64.tar.gz"
+    dest: "/tmp/nats-server-v{{ nats_version }}-linux-amd64.tar.gz"
+    mode: '0755'
+
+- name: Extract NATS server archive
+  unarchive:
+    src: "/tmp/nats-server-v{{ nats_version }}-linux-amd64.tar.gz"
+    dest: "/opt/nats"
+    remote_src: yes
+
+- name: Create systemd service file for NATS
+  template:
+    src: nats.service.j2
+    dest: /etc/systemd/system/nats.service
+
+- name: Reload systemd daemon
+  systemd:
+    daemon_reload: yes
+
+- name: Set NATS service state
+  systemd:
+    name: nats
+    enabled: "{{ service_enabled }}"
+    state: "{{ service_state }}"

data/ansible/roles/nats/templates/nats.service.j2

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+[Unit]
+Description=NATS Server
+After=network.target
+
+[Service]
+ExecStart=/opt/nats/nats-server-v{{ nats_version }}-linux-amd64/nats-server
+User={{ nats_user }}
+Group={{ nats_group }}
+Restart=on-failure
+
+[Install]
+WantedBy=multi-user.target