fix: remove grafana_admin_password from env.j2, delete dead prometheus templates

These files referenced variables removed in the previous refactor commit,
causing deploy failure (undefined variable: grafana_admin_password).

roles/services/templates/env.j2

@@ -8,7 +8,6 @@ DOMAIN_GIT={{ domain_git }}
 DOMAIN_PLANE={{ domain_plane }}
 DOMAIN_TRAEFIK={{ domain_traefik }}
 FORGEJO_RUNNER_TOKEN={{ forgejo_runner_token }}
-GRAFANA_ADMIN_PASSWORD={{ grafana_admin_password }}
 CROWDSEC_BOUNCER_KEY={{ crowdsec_bouncer_key }}
 # Cloudflare DNS-01 ACME challenge
 CF_DNS_API_TOKEN={{ cloudflare_dns_api_token }}

roles/services/templates/prometheus/alertmanager.yml.j2

@@ -1,38 +0,0 @@
-# Generated by Ansible — do not edit manually
-global:
-  resolve_timeout: 5m
-
-route:
-  group_by: [alertname, severity]
-  group_wait: 30s
-  group_interval: 5m
-  repeat_interval: 4h
-  receiver: all
-
-receivers:
-  - name: all
-    telegram_configs:
-      - bot_token: "{{ alertmanager_telegram_token }}"
-        chat_id: {{ alertmanager_telegram_chat_id }}
-        message: |
-          {{ '{{' }} range .Alerts {{ '}}' }}
-          {{ '{{' }} if eq .Status "firing" {{ '}}' }}🔴{{ '{{' }} else {{ '}}' }}🟢{{ '{{' }} end {{ '}}' }} *{{ '{{' }} .Labels.alertname {{ '}}' }}*
-          {{ '{{' }} .Annotations.summary {{ '}}' }}
-          {{ '{{' }} .Annotations.description {{ '}}' }}
-          {{ '{{' }} end {{ '}}' }}
-        parse_mode: Markdown
-    discord_configs:
-      - webhook_url: "{{ discord_webhook_alerts }}"
-        title: >-
-          {{ '{{' }} if eq (index .Alerts 0).Status "firing" {{ '}}' }}🔴 Alert{{ '{{' }} else {{ '}}' }}🟢 Resolved{{ '{{' }} end {{ '}}' }}
-        message: |
-          {{ '{{' }} range .Alerts {{ '}}' }}
-          **{{ '{{' }} .Labels.alertname {{ '}}' }}**
-          {{ '{{' }} .Annotations.summary {{ '}}' }}
-          {{ '{{' }} .Annotations.description {{ '}}' }}
-          {{ '{{' }} end {{ '}}' }}
-
-inhibit_rules:
-  - source_matchers: [severity="critical"]
-    target_matchers: [severity="warning"]
-    equal: [alertname]

roles/services/templates/prometheus/prometheus.yml.j2

@@ -1,31 +0,0 @@
-# Generated by Ansible — do not edit manually
-global:
-  scrape_interval: 15s
-  evaluation_interval: 15s
-  external_labels:
-    instance: "{{ domain_base }}"
-
-alerting:
-  alertmanagers:
-    - static_configs:
-        - targets: ["alertmanager:9093"]
-
-rule_files:
-  - /etc/prometheus/rules/*.yml
-
-scrape_configs:
-  - job_name: prometheus
-    static_configs:
-      - targets: ["localhost:9090"]
-
-  - job_name: node-exporter
-    static_configs:
-      - targets: ["node-exporter:9100"]
-
-  - job_name: cadvisor
-    static_configs:
-      - targets: ["cadvisor:8080"]
-
-  - job_name: alertmanager
-    static_configs:
-      - targets: ["alertmanager:9093"]

roles/services/templates/prometheus/rules/alerts.yml.j2

@@ -1,86 +0,0 @@
-# Generated by Ansible — do not edit manually
-groups:
-  - name: host
-    rules:
-      - alert: HighCPULoad
-        expr: 100 - (avg by(instance) (rate(node_cpu_seconds_total{mode="idle"}[5m])) * 100) > 85
-        for: 5m
-        labels:
-          severity: warning
-        annotations:
-          summary: "Высокая нагрузка CPU ({{ '{{' }} $value | printf \"%.0f\" {{ '}}' }}%)"
-          description: "CPU загружен более 85% на протяжении 5 минут."
-
-      - alert: HighMemoryUsage
-        expr: (1 - (node_memory_MemAvailable_bytes / node_memory_MemTotal_bytes)) * 100 > 85
-        for: 5m
-        labels:
-          severity: warning
-        annotations:
-          summary: "Высокое использование RAM ({{ '{{' }} $value | printf \"%.0f\" {{ '}}' }}%)"
-          description: "Использование RAM превысило 85%."
-
-      - alert: CriticalMemoryUsage
-        expr: (1 - (node_memory_MemAvailable_bytes / node_memory_MemTotal_bytes)) * 100 > 95
-        for: 2m
-        labels:
-          severity: critical
-        annotations:
-          summary: "Критическое использование RAM ({{ '{{' }} $value | printf \"%.0f\" {{ '}}' }}%)"
-          description: "RAM заполнена на 95%+. Возможны OOM kills."
-
-      - alert: DiskSpaceWarning
-        expr: (1 - (node_filesystem_avail_bytes{fstype!~"tmpfs|overlay|aufs"} / node_filesystem_size_bytes{fstype!~"tmpfs|overlay|aufs"})) * 100 > 75
-        for: 5m
-        labels:
-          severity: warning
-        annotations:
-          summary: "Заканчивается место на диске ({{ '{{' }} $value | printf \"%.0f\" {{ '}}' }}%)"
-          description: "Диск {{ '{{' }} $labels.mountpoint {{ '}}' }} занят на {{ '{{' }} $value | printf \"%.0f\" {{ '}}' }}%."
-
-      - alert: DiskSpaceCritical
-        expr: (1 - (node_filesystem_avail_bytes{fstype!~"tmpfs|overlay|aufs"} / node_filesystem_size_bytes{fstype!~"tmpfs|overlay|aufs"})) * 100 > 90
-        for: 2m
-        labels:
-          severity: critical
-        annotations:
-          summary: "Критически мало места на диске ({{ '{{' }} $value | printf \"%.0f\" {{ '}}' }}%)"
-          description: "Диск {{ '{{' }} $labels.mountpoint {{ '}}' }} занят на {{ '{{' }} $value | printf \"%.0f\" {{ '}}' }}%."
-
-      - alert: SwapUsageHigh
-        expr: (1 - (node_memory_SwapFree_bytes / node_memory_SwapTotal_bytes)) * 100 > 50
-        for: 5m
-        labels:
-          severity: warning
-        annotations:
-          summary: "Высокое использование swap ({{ '{{' }} $value | printf \"%.0f\" {{ '}}' }}%)"
-          description: "Swap используется более чем на 50% — RAM под давлением."
-
-  - name: containers
-    rules:
-      - alert: ContainerDown
-        expr: absent(container_last_seen{name=~".+"}) or time() - container_last_seen{name=~".+"} > 60
-        for: 2m
-        labels:
-          severity: critical
-        annotations:
-          summary: "Контейнер {{ '{{' }} $labels.name {{ '}}' }} недоступен"
-          description: "Контейнер не отвечает более 2 минут."
-
-      - alert: ContainerHighMemory
-        expr: (container_memory_usage_bytes{name=~".+"} / (container_spec_memory_limit_bytes{name=~".+"} > 0)) * 100 > 90
-        for: 5m
-        labels:
-          severity: warning
-        annotations:
-          summary: "Контейнер {{ '{{' }} $labels.name {{ '}}' }} использует 90%+ памяти"
-          description: "Контейнер близок к mem_limit — возможен OOM kill."
-
-      - alert: ContainerRestarting
-        expr: increase(container_last_seen{name=~".+"}[5m]) == 0 and rate(container_cpu_usage_seconds_total{name=~".+"}[5m]) == 0
-        for: 0m
-        labels:
-          severity: warning
-        annotations:
-          summary: "Контейнер {{ '{{' }} $labels.name {{ '}}' }} возможно перезапускается"
-          description: "Контейнер не активен — проверьте docker ps."