Sesión 3

Aquesta és una revisió antiga del document

spreed brain?:
- 3 nodos develop
- 5 nodos producción
sudo hostnamectl set-hostname <nombre_máquina>

docker swarm init
- para crear un swarm con varios nodos, solo 1 ha de iniciarlo
docker swarm join-token {manager|worker}
- podemos añadirnos como manager o como workers al swarm creado
docker stack deploy -c stack-portainler.yml portainer
docker stack ls : stacks
docker stack services <stack> : nombre servicio
docker service ps <servicio> :
docker node inspect

version: '3.4'

services:
  portainer:
    image: portainer/portainer
    ports:
      - 9000:9000
    networks:
      - proxy
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock
      - /srv/docker/portainer/data:/data
    deploy:
      mode: replicated
      replicas: 1
      labels:
        traefik.port: 9000
        traefik.frontend.rule: 'Host:portainer.midominio.com'
        traefik.docker.network: 'proxy'
      placement:
        constraints: [node.role == manager]
networks:
  proxy:
    external: true

swarm-wp+mysq.yml

version: '3.3'
services:
   db:
     image: mysql:5.7
     volumes:
       - /ruta/local/bbdd:/var/lib/mysql
     environment:
       MYSQL_ROOT_PASSWORD: somewordpress
       MYSQL_DATABASE: wordpress
       MYSQL_USER: wordpress
       MYSQL_PASSWORD: wordpress

   wordpress:
     image: wordpress:latest
     ports:
       - "8000:80"
     volumes:
         - /ruta/local/web:/var/www/html
     environment:
       WORDPRESS_DB_HOST: db:3306
       WORDPRESS_DB_USER: wordpress
       WORDPRESS_DB_PASSWORD: wordpress
       WORDPRESS_DB_NAME: wordpress

stack.yml

# Author: Kenneth Peiruza
version: '3.4'

services:
  influxdb:
    image: library/influxdb:latest
    command: -config /etc/influxdb/influxdb.conf
    environment:
      INFLUXDB_ADMIN_USER: ${INFLUXDB_ADMIN_USER:-admin}
      INFLUXDB_ADMIN_PASSWORD: ${INFLUXDB_ADMIN_PASSWORD:-admin}
    networks:
      - agents
      - grafana
    volumes:
      - ${REMOTE_MOUNT}/${STACK_NAME}/influxdb/data:/var/lib/influxdb
      - ${REMOTE_MOUNT}/${STACK_NAME}/influxdb/config:/etc/influxdb/config:ro
    deploy:
      replicas: 1

  grafana:
    image: grafana/grafana
    environment:
      GF_INSTALL_PLUGINS: 'grafana-clock-panel,grafana-piechart-panel,grafana-simple-json-datasource'
    volumes:
      - ${REMOTE_MOUNT}/${STACK_NAME}/grafana/data:/var/lib/grafana/
    networks:
      - grafana
      - proxy
    depends_on:
      - influxdb
    deploy:
      replicas: 1
      labels:
        traefik.port: 3000
        traefik.frontend.rule: "Host:${TRAEFIK_FQDN}"
        traefik.docker.network: "proxy"
 
#   Fancy replacing placement on a static node. Add Net-storage and drop this out

  telegraf:
    image: telegraf/telegraf
    environment:
      HOST_PROC: '/rootfs/proc'
      HOST_SYS: '/rootfs/sys'
      HOST_ETC: '/rootfs/etc'
    networks:
      - agents
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock:ro
      - /sys:/rootfs/sys:ro
      - /proc:/rootfs/proc:ro
      - /run:/rootfs/run:ro
      - /etc:/rootfs/etc:ro
      - /etc/telegraf/:/etc/telegraf/ 
    deploy:
      mode: global   # Metes 1 instancia en cada nodo
      restart_policy:
        condition: on-failure
        delay: 5s

networks:
  agents:
    driver: 'overlay'
  grafana:
    driver: 'overlay'
  proxy:
    external: true

escupe fichero de config base: docker run -ti library/telegraf telegraf config

telegraf.conf

influxdb.conf

reporting-disabled = false
bind-address = "127.0.0.1:8088"

[meta]
  dir = "/var/lib/influxdb/meta"
  retention-autocreate = true
  logging-enabled = true

[data]
  dir = "/var/lib/influxdb/data"
  index-version = "inmem"
  wal-dir = "/var/lib/influxdb/wal"
  wal-fsync-delay = "0s"
  query-log-enabled = true
  cache-max-memory-size = 1073741824
  cache-snapshot-memory-size = 26214400
  cache-snapshot-write-cold-duration = "10m0s"
  compact-full-write-cold-duration = "4h0m0s"
  max-series-per-database = 1000000
  max-values-per-tag = 100000
  max-concurrent-compactions = 0
  trace-logging-enabled = false

[coordinator]
  write-timeout = "10s"
  max-concurrent-queries = 0
  query-timeout = "0s"
  log-queries-after = "0s"
  max-select-point = 0
  max-select-series = 0
  max-select-buckets = 0

[retention]
  enabled = true
  check-interval = "30m0s"

[shard-precreation]
  enabled = true
  check-interval = "10m0s"
  advance-period = "30m0s"

[monitor]
  store-enabled = true
  store-database = "_internal"
  store-interval = "10s"

[subscriber]
  enabled = true
  http-timeout = "30s"
  insecure-skip-verify = false
  ca-certs = ""
  write-concurrency = 40
  write-buffer-size = 1000

[http]
  enabled = true
  bind-address = ":8086"
  auth-enabled = false
  log-enabled = true
  write-tracing = false
  pprof-enabled = true
  https-enabled = false
  https-certificate = "/etc/ssl/influxdb.pem"
  https-private-key = ""
  max-row-limit = 0
  max-connection-limit = 0
  shared-secret = ""
  realm = "InfluxDB"
  unix-socket-enabled = false
  bind-socket = "/var/run/influxdb.sock"

[[graphite]]
  enabled = false
  bind-address = ":2003"
  database = "graphite"
  retention-policy = ""
  protocol = "tcp"
  batch-size = 5000
  batch-pending = 10
  batch-timeout = "1s"
  consistency-level = "one"
  separator = "."
  udp-read-buffer = 0

[[collectd]]
  enabled = false
  bind-address = ":25826"
  database = "collectd"
  retention-policy = ""
  batch-size = 5000
  batch-pending = 10
  batch-timeout = "10s"
  read-buffer = 0
  typesdb = "/usr/share/collectd/types.db"
  security-level = "none"
  auth-file = "/etc/collectd/auth_file"

[[opentsdb]]
  enabled = false
  bind-address = ":4242"
  database = "opentsdb"
  retention-policy = ""
  consistency-level = "one"
  tls-enabled = false
  certificate = "/etc/ssl/influxdb.pem"
  batch-size = 1000
  batch-pending = 5
  batch-timeout = "1s"
  log-point-errors = true

[[udp]]
  enabled = false
  bind-address = ":8089"
  database = "udp"
  retention-policy = ""
  batch-size = 5000
  batch-pending = 10
  read-buffer = 0
  batch-timeout = "1s"
  precision = ""

[continuous_queries]
  log-enabled = true
  enabled = true
  run-interval = "1s"

Sesión 3

varios

swarm

portainer

wordpress

influx+grafana+telegraf

miguel angel torres egea