docker on localhost - problem with wordpress cron - Failed to connect to local.domain port 80: Connection refused

[grzesiek1owline]

Codebase

Built-in vanilla WordPress

Host OS

Ubuntu 20.04

Docker info output

Client:
 Context:    default
 Debug Mode: false
 Plugins:
  app: Docker App (Docker Inc., v0.9.1-beta3)
  buildx: Build with BuildKit (Docker Inc., v0.5.1-docker)
  scan: Docker Scan (Docker Inc., v0.8.0)

Server:
 Containers: 66
  Running: 6
  Paused: 0
  Stopped: 60
 Images: 63
 Server Version: 20.10.7
 Storage Driver: overlay2
  Backing Filesystem: extfs
  Supports d_type: true
  Native Overlay Diff: true
  userxattr: false
 Logging Driver: json-file
 Cgroup Driver: cgroupfs
 Cgroup Version: 1
 Plugins:
  Volume: local
  Network: bridge host ipvlan macvlan null overlay
  Log: awslogs fluentd gcplogs gelf journald json-file local logentries splunk syslog
 Swarm: inactive
 Runtimes: io.containerd.runc.v2 io.containerd.runtime.v1.linux runc
 Default Runtime: runc
 Init Binary: docker-init
 containerd version: d71fcd7d8303cbf684402823e425e9dd2e99285d
 runc version: b9ee9c6314599f1b4a7f497e1f1f856fe433d3b7
 init version: de40ad0
 Security Options:
  apparmor
  seccomp
   Profile: default
 Kernel Version: 5.8.0-59-generic
 Operating System: Ubuntu 20.04.2 LTS
 OSType: linux
 Architecture: x86_64
 CPUs: 16
 Total Memory: 31.23GiB
 Name: owline-Lenovo-Legion-5-15ARH05
 ID: GRKT:CPZT:P2NZ:KMMP:6EHO:ZOUM:ULZ4:RMLD:5KAA:VXIR:AQ7Q:BA4F
 Docker Root Dir: /var/lib/docker
 Debug Mode: false
 Registry: https://index.docker.io/v1/
 Labels:
 Experimental: false
 Insecure Registries:
  127.0.0.0/8
 Live Restore Enabled: false

I used this a set of docker images to run wordpress on localhost: https://github.com/wodby/docker4wordpress I have a problem with cURL command when i run this tool from php files or from php container. cURL works only when i run it from nginx command line. How to config docker-compose to run cURL and repair wordpress cron. My config:

docker-compose

version: "3"

services:
  mariadb:
    image: wodby/mariadb:$MARIADB_TAG
    container_name: "${PROJECT_NAME}_mariadb"
    stop_grace_period: 30s
    environment:
      MYSQL_ROOT_PASSWORD: $DB_ROOT_PASSWORD
      MYSQL_DATABASE: $DB_NAME
      MYSQL_USER: $DB_USER
      MYSQL_PASSWORD: $DB_PASSWORD
    volumes:
#    - ./mariadb-init:/docker-entrypoint-initdb.d # Place init .sql file(s) here.
    - ./db:/var/lib/mysql # I want to manage volumes manually.

  php:
    image: wodby/wordpress-php:$PHP_TAG
    container_name: "${PROJECT_NAME}_php"
    environment:
      PHP_SENDMAIL_PATH: /usr/sbin/sendmail -t -i -S mailhog:1025
      DB_HOST: $DB_HOST
      DB_USER: $DB_USER
      DB_PASSWORD: $DB_PASSWORD
      DB_NAME: $DB_NAME
      PHP_FPM_USER: wodby
      PHP_FPM_GROUP: wodby
#      # Read instructions at https://wodby.com/docs/stacks/wordpress/local#xdebug
      PHP_XDEBUG: 1
      PHP_XDEBUG_MODE: debug
      PHP_IDE_CONFIG: serverName=PHPSTORM
      PHP_XDEBUG_IDEKEY: "PHPSTORM"
      PHP_XDEBUG_CLIENT_HOST: 172.17.0.1 # Linux
#      PHP_XDEBUG_CLIENT_HOST: host.docker.internal # Docker 18.03+ Mac/Win
#      PHP_XDEBUG_CLIENT_HOST: 10.0.75.1 # Windows
      PHP_XDEBUG_LOG: /tmp/php-xdebug.log
    volumes:
    - ./web:/var/www/html:cached
## Alternative for macOS users: Mutagen https://wodby.com/docs/stacks/wordpress/local#docker-for-mac
#    - mutagen:/var/www/html
#    # For XHProf and Xdebug profiler traces
#    - files:/mnt/files

  crond:
    image: wodby/wordpress-php:$PHP_TAG
    container_name: "${PROJECT_NAME}_crond"
    environment:
      CRONTAB: "5,10,15,20,25,35,45,55 * * * * wp cron event run --due-now --path=/var/www/html"
    command: sudo -E LD_PRELOAD=/usr/lib/preloadable_libiconv.so crond -f -d 0
    volumes:
    - ./web:/var/www/html:cached

  nginx:
    image: wodby/nginx:$NGINX_TAG
    container_name: "${PROJECT_NAME}_nginx"
    depends_on:
    - php
    environment:
      NGINX_STATIC_OPEN_FILE_CACHE: "off"
      NGINX_ERROR_LOG_LEVEL: debug
      NGINX_BACKEND_HOST: php
      NGINX_VHOST_PRESET: wordpress
      #NGINX_SERVER_ROOT: /var/www/html/subdir
    volumes:
    - ./web:/var/www/html:cached
## Alternative for macOS users: Mutagen https://wodby.com/docs/stacks/wordpress/local#docker-for-mac
#    - mutagen:/var/www/html
    labels:
    - "traefik.http.routers.${PROJECT_NAME}_nginx.rule=Host(`${PROJECT_BASE_URL}`)"

  mailhog:
    image: mailhog/mailhog
    container_name: "${PROJECT_NAME}_mailhog"
    labels:
    - "traefik.http.services.${PROJECT_NAME}_mailhog.loadbalancer.server.port=8025"
    - "traefik.http.routers.${PROJECT_NAME}_mailhog.rule=Host(`mailhog.${PROJECT_BASE_URL}`)"

  adminer:
    container_name: "${PROJECT_NAME}_adminer"
    image: wodby/adminer:$ADMINER_TAG
    environment:
##      # For PostgreSQL:
##      ADMINER_DEFAULT_DB_DRIVER: pgsql
      ADMINER_DEFAULT_DB_HOST: $DB_HOST
      ADMINER_DEFAULT_DB_NAME: $DB_NAME
    labels:
    - "traefik.http.routers.${PROJECT_NAME}_adminer.rule=Host(`adminer.${PROJECT_BASE_URL}`)"

  pma:
    image: phpmyadmin/phpmyadmin
    container_name: "${PROJECT_NAME}_pma"
    environment:
      PMA_HOST: $DB_HOST
      PMA_USER: $DB_USER
      PMA_PASSWORD: $DB_PASSWORD
      PHP_UPLOAD_MAX_FILESIZE: 1G
      PHP_MAX_INPUT_VARS: 1G
    labels:
    - "traefik.http.routers.${PROJECT_NAME}_pma.rule=Host(`pma.${PROJECT_BASE_URL}`)"

and traefik docker-compose

version: '3'

services:
  traefik:
    image: traefik:v2.0
    command: --api.insecure=true --providers.docker
    networks:
    - talenti
    ports:
    - '80:80'
    - '8080:8080'
    volumes:
    - /var/run/docker.sock:/var/run/docker.sock
    restart: always

networks:
  talenti:
    external:
      name: talenti_default

owline@owline-Lenovo-Legion-5-15ARH05:~$ docker network ls
NETWORK ID     NAME                          DRIVER    SCOPE
b9309fcd7b7c   bridge                        bridge    local
427502257d25   host                          host      local
18418489a0d5   none                          null      local
985e9f39dab9   talenti_default               bridge    local

[pjv]

Try adding a network alias to the traefik service definition like so:

traefik:
  image: traefik:v2.0
  container_name: "${PROJECT_NAME}_traefik"
  command: --api.insecure=true --providers.docker
  ports:
  - '8000:80'
#    - '8080:8080' # Dashboard
  volumes:
    - /var/run/docker.sock:/var/run/docker.sock
  networks:
    default:
      aliases:
        - ${PROJECT_NAME}.${PROJECT_BASE_URL}

For me, this fixed the loopback error and rest api error reported on the "site health" page in wordpress.

@csandanov this is a potential fix for numerous obscure loopback and rest API related issues that have been reported over time here.

[audetcameron]

Try adding a network alias to the traefik service definition like so:

traefik:
  image: traefik:v2.0
  container_name: "${PROJECT_NAME}_traefik"
  command: --api.insecure=true --providers.docker
  ports:
  - '8000:80'
#    - '8080:8080' # Dashboard
  volumes:
    - /var/run/docker.sock:/var/run/docker.sock
  networks:
    default:
      aliases:
        - ${PROJECT_NAME}.${PROJECT_BASE_URL}

For me, this fixed the loopback error and rest api error reported on the "site health" page in wordpress.

@csandanov this is a potential fix for numerous obscure loopback and rest API related issues that have been reported over time here.

I think this just ended up breaking things for me...
unless I'm doing something wrong, when I add the alias mysite.docker.localhost (and the domain and docker.localhost pointed in my host file to 127.0.0.1 ) I just get a 404.
I think because the ailas and main one are competing or something? 🤷
Would love to figure out loopbacks.

[pjv]

@audetcameron indeed that alias seems not to work anymore. At the time I wrote the original post it did solve both the loopback and the rest api errors for me, but now using that alias those errors are back. I get the same errors either with or without the alias now. back to square one.