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
  • ElasticSearch Docker Images - https://www.docker.elastic.co
  • Use oss images - Pulling images
  • Kibana Docker - Configure Kibana for docker.
    • Docker Kibana

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

• Official Alpine Docker Image
• Docker Networking
• Docker Store
• docker pull alpine
• apk --no-cache add {package}
• Dockerfile Example - avoids using –update and rm -rf /var/cache/apk/*

    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

• yousan/nginx-unit - instructions on getting access to the socket.
• Nginx Unit Integration
• docker-compose.yml

  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

• Using Docker for Mac
  • Docker Nginx Unit
• Using docker-compose.yml

    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

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Last update: April 13, 2020 16:50:19