Rename forrest role to prometheus

Makes organising much simpler

ansible/roles/prometheus/tasks/prometheus.yml

@@ -0,0 +1,53 @@
+- name: Create prometheus install directory
+  file:
+    path: /opt/prometheus
+    state: directory
+    owner: "{{ docker_user.name }}"
+    mode: "{{ docker_compose_directory_mask }}"
+  become: true
+
+- name: Install prometheus config
+  template:
+    src: files/prometheus/prometheus.yml
+    dest: /opt/prometheus/prometheus.yml
+    mode: "{{ docker_compose_file_mask }}"
+    owner: "{{ docker_user.name }}"
+  notify: reload prometheus
+  become: true
+
+- name: Install prometheus compose file
+  template:
+    src: files/prometheus/docker-compose.yml
+    dest: /opt/prometheus/docker-compose.yml
+    mode: "{{ docker_compose_file_mask }}"
+    owner: "{{ docker_user.name }}"
+    validate: docker-compose -f %s config
+  notify: restart prometheus
+  become: true
+
+- name: Install blackbox config
+  template:
+    src: files/prometheus/blackbox.yml
+    dest: /opt/prometheus/blackbox.yml
+    mode: "{{ docker_compose_file_mask }}"
+    owner: "{{ docker_user.name }}"
+  notify: restart prometheus
+  become: true
+
+- name: Install alertmanager config
+  template:
+    src: files/prometheus/alertmanager.yml
+    dest: /opt/prometheus/alertmanager.yml
+    mode: "{{ docker_compose_file_mask }}"
+    owner: "{{ docker_user.name }}"
+  notify: restart prometheus
+  become: true
+
+- name: Install prometheus alert rules
+  copy:
+    src: files/prometheus/alert-rules.d/
+    dest: /opt/prometheus/alert-rules.d/
+    mode: "{{ docker_compose_file_mask }}"
+    owner: "{{ docker_user.name }}"
+  notify: reload prometheus
+  become: true