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Notes for docker

  • Not using everyday so need instructions on how I use it
  • Removing Docker containers and images
  • Reset containers when using docker-compose. docker-compose up --force-recreate
  • Reset everything - docker-compose down --remove-orphans -v --rmi all
  • ElasticSearch

Starting and using

  • Now using Docker for Mac
  • docker-machine start default
  • Set the environment
    • Configure Shell (Docker Toolbox on Mac)
      • eval "$(docker-machine env default)"
  • docker-machine config - verify can connect and pull info from the machine

Use a base alpine image for docker

  FROM alpine:latest
  RUN apk add --no-cache nginx
  EXPOSE 80
  CMD ["nginx", "-g", "daemon off;"]

Nginx docker config

  • sudo docker cp docker-nginx:/etc/nginx/conf.d/default.conf default.conf - Copy config file from docker container

Setup nginx-unit with docker

version: '3'
services:
  web:
    image: "nginx:1.13-alpine"
    container_name: lookfindme-web
    ports:
      - "7000:80"
    volumes:
      - ./containers/nginx/html:/usr/share/nginx/html:ro
      - ./containers/nginx/conf/nginx.conf:/etc/nginx/nginx.conf
      - ./containers/nginx/conf/default.conf:/etc/nginx/conf.d/default.conf
  nginx-unit:
    image: "nginx/unit:1.1-full"
    container_name: lookfindme-nginx-unit
    ports:
      - 8081:8081
      - 8200:8200
      - 8300:8300
    volumes:
      - ./containers/nginx/json:/root/json
      - ./containers/nginx/www/root:/www/root
  database:
    image: "mdillon/postgis:10-alpine"
    container_name: lookfindme-database
    ports:
      - "15432:5432"
    volumes:
      - ./containers/dbData:/var/lib/postgresql/data
  search:
    image: "docker.elastic.co/elasticsearch/elasticsearch-oss:6.2.3"
    container_name: lookfindme-search
    ports:
      - "9200:9200"
      - "9300:9300"
  queue:
    image: "rabbitmq:3-management-alpine"
    container_name: lookfindme-queue
    ports:
      - "15672:15672"
    volumes:
      - ./containers/queue:/var/lib/rabbitmq
  • container folder. - containers/nginx/conf/
    • default.conf
server {
    listen       80;
    server_name  localhost;

    #charset koi8-r;
    #access_log  /var/log/nginx/host.access.log  main;

    location /static {
        root /usr/share/nginx;
    }

   location / {
        proxy_pass http://unit_backend;
        proxy_set_header Host $host;
    }

    location /home {
        # uswgi_pass lookfindme;
        # include uwsgi_params;
        root   /usr/share/nginx/html;
        index  index.html index.htm;
    }

    #error_page  404              /404.html;

    # redirect server error pages to the static page /50x.html
    #
    error_page   500 502 503 504  /50x.html;
    location = /50x.html {
        root   /usr/share/nginx/html;
    }

    # proxy the PHP scripts to Apache listening on 127.0.0.1:80
    #
    #location ~ \.php$ {
    #    proxy_pass   http://127.0.0.1;
    #}

    # pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000
    #
    #location ~ \.php$ {
    #    root           html;
    #    fastcgi_pass   127.0.0.1:9000;
    #    fastcgi_index  index.php;
    #    fastcgi_param  SCRIPT_FILENAME  /scripts$fastcgi_script_name;
    #    include        fastcgi_params;
    #}

    # deny access to .htaccess files, if Apache's document root
    # concurs with nginx's one
    #
    #location ~ /\.ht {
    #    deny  all;
    #}
}
  • nginx.conf
user  nginx;
worker_processes  1;

error_log  /var/log/nginx/error.log warn;
pid        /var/run/nginx.pid;


events {
    worker_connections  1024;
}



http {
    include       /etc/nginx/mime.types;
    default_type  application/octet-stream;

    log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
                      '$status $body_bytes_sent "$http_referer" '
                      '"$http_user_agent" "$http_x_forwarded_for"';

    access_log  /var/log/nginx/access.log  main;

    sendfile        on;
    #tcp_nopush     on;

    keepalive_timeout  65;

    #gzip  on;

    upstream unit_backend {
        server nginx-unit:8300;
    }

    include /etc/nginx/conf.d/*.conf;
}
  • nginx-unit json file
{
    "listeners": {
            "*:8300": {
                    "application": "blogs"
            }
    },

    "applications": {
            "blogs": {
                    "type": "php",
                    "processes": 20,
                    "root": "/www/root",
                    "index": "index.php"
            }
    }
}
  • docker-compose exec nginx-unit curl -X PUT -d @/root/json/local.json --unix-socket /var/run/control.unit.sock http://localhost/ && docket-compose exec nginx-unit /bin/bash

Setup nginx-unit with docker

  nginx-unit:
    image: "nginx/unit:1.1-full"
    container_name: nginx-unit
    ports:
      - 8081:8081
      - 8200:8200
      - 8300:8300
    volumes:
      - ../containers/nginx/json:/root/json
      - ../containers/nginx/www/root:/www/root
  • Create index.php in ./containers/nginx/html
  • json.local in ./containers/nginx/json
{
    "listeners": {
            "*:8300": {
                    "application": "blogs"
            }
    },

    "applications": {
            "blogs": {
                    "type": "php",
                    "processes": 20,
                    "root": "/www/root",
                    "index": "index.php"
            }
    }
}

Creating the setup

  • Create configuration in docker-compose.yml file
  • Copy json.local to containers/nginx/json
  • Copy index.php to containers/nginx/www/root
  • docker-compose up -d - start the containers
  • docker-compose exec nginx-unit curl -X PUT -d @/root/json/local.json --unix-socket /var/run/control.unit.sock http://localhost/ - set the configuration for nginx unit
  • Access the file at http://localhost:8300

Errors

  • ERROR: network lookfindmeapi_default id ae6c919c63c2f8a9ed5a5aea2ba716f4b19efe4fd7599fc0262a991d6e34b494 has active endpoints
    • docker-compose ps
    • docker stop {container}
    • docker container prune