---
version: "3.8"

services:
  app:
    image: grafana/grafana:8.4.4
    volumes:
      - grafana-data:/var/lib/grafana:rw
    secrets:
      - grafana_admin_password
      - grafana_oauth_client_secret
      - grafana_smtp_password
    configs:
      - source: grafana_custom_ini
        target: /etc/grafana/grafana.ini
    networks:
      - proxy
      - internal
    environment:
      - GF_SMTP_HOST
      - GF_SMTP_ENABLED
      - GF_SMTP_FROM_ADDRESS
      - GF_SMTP_SKIP_VERIFY
      - GF_SECURITY_ALLOW_EMBEDDING
      - GF_INSTALL_PLUGINS=grafana-piechart-panel
      - GF_SERVER_ROOT_URL=https://${GRAFANA_DOMAIN}
      - GF_SECURITY_ADMIN_PASSWORD__FILE=/run/secrets/grafana_admin_password
      - KEYCLOAK_API_URL
      - KEYCLOAK_AUTH_URL
      - KEYCLOAK_TOKEN_URL
    deploy:
      labels:
        - "traefik.enable=true"
        - "traefik.http.services.${STACK_NAME}-grafana.loadbalancer.server.port=3000"
        - "traefik.http.routers.${STACK_NAME}-grafana.rule=Host(`${GRAFANA_DOMAIN}`)"
        - "traefik.http.routers.${STACK_NAME}-grafana.entrypoints=web-secure"
        - "traefik.http.routers.${STACK_NAME}-grafana.tls=true"
        - "traefik.http.routers.${STACK_NAME}-grafana.tls.certresolver=${LETS_ENCRYPT_ENV}"
    healthcheck:
      test: "wget -q http://localhost:3000/ -O/dev/null"
      interval: 5s
      timeout: 10s
      retries: 3
      start_period: 10s

  prometheus:
    image: prom/prometheus:v2.34.0
    secrets:
      - prometheus_admin_password
      - prometheus_admin_password_hashed
      - swarm_demo_admin_password
    volumes:
      - prometheus-data:/prometheus:rw
    configs:
      - source: prometheus_yml
        target: /etc/prometheus/prometheus.yml
      - source: prometheus_web_yml
        target: /etc/prometheus/prometheus_web.yml
    command:
      - "--config.file=/etc/prometheus/prometheus.yml"
      - "--web.config.file=/etc/prometheus/prometheus_web.yml"
      - "--storage.tsdb.path=/prometheus"
      - "--web.console.libraries=/usr/share/prometheus/console_libraries"
      - "--web.console.templates=/usr/share/prometheus/consoles"
    networks:
      - proxy
      - internal
    deploy:
      restart_policy:
        condition: on-failure
      labels:
        - "traefik.enable=true"
        - "traefik.http.services.${STACK_NAME}_prometheus.loadbalancer.server.port=9090"
        - "traefik.http.routers.${STACK_NAME}-prometheus.rule=Host(`${PROMETHEUS_DOMAIN}`)"
        - "traefik.http.routers.${STACK_NAME}-prometheus.entrypoints=web-secure"
        - "traefik.http.routers.${STACK_NAME}-prometheus.tls=true"
        - "traefik.http.routers.${STACK_NAME}-prometheus.tls.certresolver=${LETS_ENCRYPT_ENV}"

  alertmanager:
    image: prom/alertmanager:v0.23.0
    volumes:
      - alertmanager-data:/etc/alertmanager
    command:
      - "--config.file=/etc/alertmanager/config.yml"
      - "--storage.path=/alertmanager"
    networks:
      - internal
    secrets:
      - alertmanager_smtp_password
    configs:
      - source: alertmanager_config
        target: /etc/alertmanager/config.yml
    environment:
      - ALERTMANAGER_SMTP_FROM
      - ALERTMANAGER_SMTP_HOST
      - ALERTMANAGER_SMTP_TO

  web:
    image: nginx:1.20.0
    networks:
      - proxy
      - internal
    environment:
      - LOKI_DOMAIN
      - STACK_NAME
    configs:
      - source: nginx_config
        target: /etc/nginx/nginx.conf
      - source: htpasswd_conf
        target: /etc/nginx/conf.d/loki.htpasswd
    secrets:
      - loki_admin_password_hashed
    deploy:
      restart_policy:
        condition: on-failure
      labels:
        - "traefik.enable=true"
        - "traefik.http.services.${STACK_NAME}-web.loadbalancer.server.port=80"
        - "traefik.http.routers.${STACK_NAME}-web.rule=Host(`${LOKI_DOMAIN}`)"
        - "traefik.http.routers.${STACK_NAME}-web.entrypoints=web-secure"
        - "traefik.http.routers.${STACK_NAME}-web.tls.certresolver=${LETS_ENCRYPT_ENV}"

  loki:
    image: grafana/loki:2.0.0
    command: -config.file=/etc/loki/local-config.yaml
    networks:
      - internal
    configs:
      - source: loki_yml
        target: /etc/loki/local-config.yaml
    volumes:
      - loki-data:/loki
    secrets:
      - loki_aws_secret_access_key
    environment:
      - LOKI_ACCESS_KEY_ID
      - LOKI_AWS_ENDPOINT
      - LOKI_AWS_REGION
      - LOKI_BUCKET_NAMES
      - STACK_NAME

configs:
  grafana_custom_ini:
    template_driver: golang
    name: ${STACK_NAME}_grafana_custom_ini_${GRAFANA_CUSTOM_INI_VERSION}
    file: grafana_custom.ini
  prometheus_yml:
    template_driver: golang
    name: ${STACK_NAME}_prometheus_yml_${PROMETHEUS_YML_VERSION}
    file: prometheus.yml.tmpl
  prometheus_web_yml:
    template_driver: golang
    name: ${STACK_NAME}_prometheus_web_yml_${PROMETHEUS_WEB_YML_VERSION}
    file: prometheus_web.yml.tmpl
  loki_yml:
    template_driver: golang
    name: ${STACK_NAME}_loki_yml_${LOKI_YML_VERSION}
    file: loki.yml.tmpl
  alertmanager_config:
    template_driver: golang
    name: ${STACK_NAME}_alertmanager_config_${ALERTMANAGER_CONFIG_VERSION}
    file: ./alertmanager.yml.tmpl
  nginx_config:
    template_driver: golang
    name: ${STACK_NAME}_nginx_config_${NGINX_CONFIG_VERSION}
    file: nginx.conf.tmpl
  htpasswd_conf:
    template_driver: golang
    name: ${STACK_NAME}_htpasswd_${HTPASSWD_CONFIG_VERSION}
    file: loki.htpasswd.tmpl

volumes:
  prometheus-data:
  grafana-data:
  loki-data:
  alertmanager-data:

networks:
  proxy:
    external: true
  internal:

secrets:
  loki_aws_secret_access_key:
    external: true
    name: ${STACK_NAME}_loki_aws_secret_access_key_${SECRET_LOKI_AWS_SECRET_ACCESS_KEY_VERSION}
  grafana_admin_password:
    external: true
    name: ${STACK_NAME}_grafana_admin_password_${SECRET_GRAFANA_ADMIN_PASSWORD_VERSION}
  grafana_oauth_client_secret:
    external: true
    name: ${STACK_NAME}_grafana_oauth_client_secret_${SECRET_GRAFANA_OAUTH_CLIENT_SECRET_VERSION}
  grafana_smtp_password:
    external: true
    name: ${STACK_NAME}_grafana_smtp_password_${SECRET_GRAFANA_SMTP_PASSWORD_VERSION}
  prometheus_admin_password_hashed:
    external: true
    name: ${STACK_NAME}_prometheus_admin_password_hashed_${SECRET_PROMETHEUS_ADMIN_PASSWORD_HASHED_VERSION}
  prometheus_admin_password:
    external: true
    name: ${STACK_NAME}_prometheus_admin_password_${SECRET_PROMETHEUS_ADMIN_PASSWORD_VERSION}
  alertmanager_smtp_password:
    external: true
    name: ${STACK_NAME}_alertmanager_smtp_password_${SECRET_ALERTMANAGER_SMTP_PASSWORD_VERSION}
  loki_admin_password_hashed:
    external: true
    name: ${STACK_NAME}_loki_admin_password_hashed_${SECRET_LOKI_ADMIN_PASSWORD_HASHED_VERSION}
  swarm_demo_admin_password:
    external: true
    name: ${STACK_NAME}_swarm_demo_admin_password_${SECRET_SWARM_DEMO_ADMIN_PASSWORD_VERSION}