add alertmanager

environments/just-created/hosts.yml

@@ -28,8 +28,8 @@ lxc: # keys must be unique, i.e. only one 'hosts' per group
     #prometheus.guaranteedstruggle.host:
     #pipisa.guaranteedstruggle.host:
 
-    
-    pg-tf.guaranteedstruggle.host:
+    alertmanager.guaranteedstruggle.host:
+    #pg-tf.guaranteedstruggle.host:
     # pg.just-for-me.internal:
     # grafana.just-for-me.internal:
     # price-loader.just-for-me.internal:

environments/proxmoxes/hosts.yml

@@ -67,9 +67,11 @@ lxc:
 
     vault.guaranteedstruggle.host:
     prometheus.guaranteedstruggle.host: 
+    alertmanager.guaranteedstruggle.host:
 
     pg-tf.guaranteedstruggle.host:
 
-    pg.just-for-me.internal:
-    grafana.just-for-me.internal:
-    price-loader.just-for-me.internal:
+    №№№№
+    # # pg.just-for-me.internal:
+    # # grafana.just-for-me.internal:
+    # # price-loader.just-for-me.internal:

playbooks/software/alertmanager.yml

@@ -0,0 +1,124 @@
+---
+- name: prom
+  hosts:
+  - alertmanager.guaranteedstruggle.host 
+  vars:
+    alertmanager_version: '0.28.1'
+  gather_facts: yes
+  become: yes
+  tasks: 
+
+  - name: Ensure group "prometheus" exists
+    ansible.builtin.group:
+      name:  prometheus
+      state: present
+  - name: Add user "prometheus"  
+    ansible.builtin.user:
+      name:   prometheus
+      groups: prometheus
+      shell: /sbin/nologin
+      create_home: no
+      append: yes
+      comment: "prometheus nologin User"
+      state: present 
+
+  - name: Creates directory
+    ansible.builtin.file:
+      path: /etc/alertmanager
+      state: directory
+      group: prometheus
+      owner: prometheus 
+  - name: Creates directory
+    ansible.builtin.file:
+      path: /usr/share/alertmanager
+      state: directory
+      group: prometheus
+      owner: prometheus 
+  - name: Creates directory
+    ansible.builtin.file:
+      path: /etc/alertmanager/templates
+      state: directory
+      group: prometheus
+      owner: prometheus 
+
+  - name: Unarchive a file that needs to be downloaded (added in 2.0)
+    ansible.builtin.unarchive:
+      src: https://github.com/prometheus/alertmanager/releases/download/v{{alertmanager_version}}/alertmanager-{{alertmanager_version}}.linux-amd64.tar.gz
+      dest: /usr/share/alertmanager
+      creates: /usr/share/alertmanager/alertmanager-{{prom_version}}.linux-amd64
+      remote_src: yes
+
+
+  - name: Create a symbolic link
+    ansible.builtin.file:
+      src: /usr/share/alertmanager/alertmanager-{{alertmanager_version}}.linux-amd64/alertmanager
+      dest: /usr/sbin/alertmanager
+      owner: prometheus
+      group: prometheus
+      state: link
+    notify:
+      - restart alertmanager
+
+  - name: Create a symbolic link
+    ansible.builtin.file:
+      src: /usr/share/alertmanager/alertmanager-{{alertmanager_version}}.linux-amd64/amtool
+      dest: /usr/sbin/amtool
+      owner: prometheus
+      group: prometheus
+      state: link
+
+  - name: Copy alertmanager.yaml
+    register: alertmanager_config_file
+    copy:
+      src: ../../files/alertmanager/alertmanager.yaml
+      dest: /etc/alertmanager/alertmanager.yaml 
+    notify:
+      - reload alertmanager
+  - name: Copy template
+    register: template_file
+    copy:
+      src: ../../files/alertmanager/simple_telegram.tmpl
+      dest: /etc/alertmanager/templates/my.tmpl
+    notify:
+      - reload alertmanager
+  - name: Copy prom web-config
+    register: web_config_file
+    copy:
+      src: ../../files/prometheus/web-config.yaml
+      dest: /etc/prometheus/web-config.yaml 
+    notify:
+      - reload alertmanager
+
+      
+  - name: Copy alertmanager.service
+    register: alertmanager_service_file
+    copy:
+      src: ../../files/alertmanager/alertmanager.service
+      dest: /etc/systemd/system/alertmanager.service
+
+
+  - name: ensure service
+    ansible.builtin.systemd_service:
+      name: alertmanager
+      state: started
+      enabled: true
+      
+
+  - name: Just force systemd to reread configs
+    ansible.builtin.systemd_service:
+      daemon_reload: true
+    when: alertmanager_service_file.changed
+
+
+
+  handlers:
+  - name: reload alertmanager
+    ansible.builtin.systemd_service:
+      name: alertmanager
+      state: reloaded 
+  - name: restart alertmanager
+    ansible.builtin.systemd_service:
+      name: alertmanager
+      state: restarted
+
+#### TODO как откатывать неудачную проверку promtool'ом ?