Initial CV-aligned infrastructure portfolio

Rework portfolio around Linux operations, Zabbix monitoring, migration validation, and ELK/Grafana log observability.

Add AAP-style LVM resize workflow, Zabbix server/proxy/agent automation assets, Linux/AIX monitoring templates, and updated validation CI.

professional-infra/zabbix-monitoring-incident-response/roles/zabbix_agent/defaults/main.yml

@@ -0,0 +1,7 @@
+---
+zabbix_agent_server: zbx-proxy-bank01
+zabbix_agent_server_active: zbx-proxy-bank01
+zabbix_agent_hostname: "{{ inventory_hostname }}"
+zabbix_agent_mode: active
+zabbix_agent_listen_port: 10050
+zabbix_agent_include_dir: /etc/zabbix/zabbix_agentd.d

professional-infra/zabbix-monitoring-incident-response/roles/zabbix_agent/tasks/main.yml

@@ -0,0 +1,38 @@
+---
+- name: Validate agent mode
+  ansible.builtin.assert:
+    that:
+      - zabbix_agent_mode in ["active", "passive"]
+    fail_msg: "zabbix_agent_mode must be active or passive"
+
+- name: Create Zabbix agent include directory
+  ansible.builtin.file:
+    path: "{{ zabbix_agent_include_dir }}"
+    state: directory
+    owner: root
+    group: root
+    mode: "0755"
+
+- name: Render Zabbix agent configuration example
+  ansible.builtin.template:
+    src: zabbix_agentd.conf.j2
+    dest: /etc/zabbix/zabbix_agentd.conf
+    owner: root
+    group: root
+    mode: "0644"
+
+- name: Render custom OS check keys
+  ansible.builtin.template:
+    src: os_checks.conf.j2
+    dest: "{{ zabbix_agent_include_dir }}/os_checks.conf"
+    owner: root
+    group: root
+    mode: "0644"
+
+- name: Report agent check model
+  ansible.builtin.debug:
+    msg:
+      host: "{{ zabbix_agent_hostname }}"
+      mode: "{{ zabbix_agent_mode }}"
+      server: "{{ zabbix_agent_server }}"
+      server_active: "{{ zabbix_agent_server_active }}"

professional-infra/zabbix-monitoring-incident-response/roles/zabbix_agent/templates/os_checks.conf.j2

@@ -0,0 +1,4 @@
+UserParameter=os.fs.discovery,echo '{"data":[]}'
+UserParameter=os.cpu.runqueue,uptime
+UserParameter=os.net.tcp_established,ss -tan state established | wc -l
+UserParameter=os.process.count[*],pgrep -fc "$1"

professional-infra/zabbix-monitoring-incident-response/roles/zabbix_agent/templates/zabbix_agentd.conf.j2

@@ -0,0 +1,5 @@
+Server={{ zabbix_agent_server }}
+ServerActive={{ zabbix_agent_server_active }}
+Hostname={{ zabbix_agent_hostname }}
+ListenPort={{ zabbix_agent_listen_port }}
+Include={{ zabbix_agent_include_dir }}/*.conf

professional-infra/zabbix-monitoring-incident-response/roles/zabbix_proxy/defaults/main.yml

@@ -0,0 +1,7 @@
+---
+zabbix_proxy_server: zbx-server01
+zabbix_proxy_hostname: "{{ inventory_hostname }}"
+zabbix_proxy_mode: active
+zabbix_proxy_database: zabbix_proxy
+zabbix_proxy_config_frequency: 60
+zabbix_proxy_offline_buffer_hours: 24

professional-infra/zabbix-monitoring-incident-response/roles/zabbix_proxy/tasks/main.yml

@@ -0,0 +1,31 @@
+---
+- name: Validate proxy mode
+  ansible.builtin.assert:
+    that:
+      - zabbix_proxy_mode in ["active", "passive"]
+    fail_msg: "zabbix_proxy_mode must be active or passive"
+
+- name: Create Zabbix proxy config directory
+  ansible.builtin.file:
+    path: /etc/zabbix
+    state: directory
+    owner: root
+    group: root
+    mode: "0755"
+
+- name: Render Zabbix proxy configuration example
+  ansible.builtin.template:
+    src: zabbix_proxy.conf.j2
+    dest: /etc/zabbix/zabbix_proxy.conf
+    owner: root
+    group: root
+    mode: "0644"
+
+- name: Report proxy operating model
+  ansible.builtin.debug:
+    msg:
+      proxy: "{{ zabbix_proxy_hostname }}"
+      server: "{{ zabbix_proxy_server }}"
+      mode: "{{ zabbix_proxy_mode }}"
+      active_checks: "{{ zabbix_proxy_mode == 'active' }}"
+      offline_buffer_hours: "{{ zabbix_proxy_offline_buffer_hours }}"

professional-infra/zabbix-monitoring-incident-response/roles/zabbix_proxy/templates/zabbix_proxy.conf.j2

@@ -0,0 +1,6 @@
+Server={{ zabbix_proxy_server }}
+Hostname={{ zabbix_proxy_hostname }}
+ProxyMode={{ 0 if zabbix_proxy_mode == 'active' else 1 }}
+DBName={{ zabbix_proxy_database }}
+ConfigFrequency={{ zabbix_proxy_config_frequency }}
+ProxyOfflineBuffer={{ zabbix_proxy_offline_buffer_hours }}

professional-infra/zabbix-monitoring-incident-response/roles/zabbix_server/defaults/main.yml

@@ -0,0 +1,7 @@
+---
+zabbix_server_listen_port: 10051
+zabbix_server_database: zabbix
+zabbix_server_housekeeping_frequency: 1
+zabbix_server_cache_size: 256M
+zabbix_server_trend_retention_days: 365
+zabbix_server_history_retention_days: 90

professional-infra/zabbix-monitoring-incident-response/roles/zabbix_server/tasks/main.yml

@@ -0,0 +1,25 @@
+---
+- name: Create Zabbix server config directory
+  ansible.builtin.file:
+    path: /etc/zabbix
+    state: directory
+    owner: root
+    group: root
+    mode: "0755"
+
+- name: Render Zabbix server configuration example
+  ansible.builtin.template:
+    src: zabbix_server.conf.j2
+    dest: /etc/zabbix/zabbix_server.conf
+    owner: root
+    group: root
+    mode: "0644"
+
+- name: Report Zabbix server maintenance settings
+  ansible.builtin.debug:
+    msg:
+      listen_port: "{{ zabbix_server_listen_port }}"
+      cache_size: "{{ zabbix_server_cache_size }}"
+      housekeeping_frequency: "{{ zabbix_server_housekeeping_frequency }}"
+      history_retention_days: "{{ zabbix_server_history_retention_days }}"
+      trend_retention_days: "{{ zabbix_server_trend_retention_days }}"

professional-infra/zabbix-monitoring-incident-response/roles/zabbix_server/templates/zabbix_server.conf.j2

@@ -0,0 +1,5 @@
+ListenPort={{ zabbix_server_listen_port }}
+DBName={{ zabbix_server_database }}
+CacheSize={{ zabbix_server_cache_size }}
+HousekeepingFrequency={{ zabbix_server_housekeeping_frequency }}
+HistoryStorageDateIndex=1