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Last pushed: a year ago
Short Description
Container providing nodejs application engine on fedora / centos / redhat
Full Description

Docker OS Images : NODEJS on CentOS 6

Simple container used to run server side executed javascript content. include all nodejs and npm dependency.
Run nodejs main app.js under a container
based on startx/centos:6 container.
Could use various network protocol (like http, websocket, smtp, telnet) according to the content of the running app.

Each container is provided with various underlying OS version based on CentOS or
Fedora Linux. Please visit startx docker-images homepage
or other nodejs flavours

Dockerhub Registry Sources STARTX Profile

Running from dockerhub registry

  • with docker you can run docker run -it --name="service-nodejs" startx/sv-nodejs from any docker host
  • with docker-compose you can create a docker-compose.yml file with the following content
    service:
    image: startx/sv-nodejs:centos6
    container_name: "centos6-service-nodejs"
    environment:
      CONTAINER_TYPE: "service"
      CONTAINER_SERVICE: "nodejs"
      CONTAINER_INSTANCE: "centos6-service-nodejs"
    volumes:
      - "/tmp/container-centos6/logs/nodejs:/logs"
      - "/tmp/container-centos6/nodejs:/data"
    

Docker-compose in various situations

  • sample docker-compose.yml linked to host port 1000
    service:
    image: startx/sv-nodejs:centos6
    container_name: "centos6-service-nodejs"
    environment:
      CONTAINER_INSTANCE: "centos6-service-nodejs"
    ports:
      - "1000:8080"
    
  • sample docker-compose.yml with port exposed only to linked services
    service:
    image: startx/sv-nodejs:centos6
    container_name: "centos6-service-nodejs"
    environment:
      CONTAINER_INSTANCE: "centos6-service-nodejs"
    expose:
      - "8080"
    
  • sample docker-compose.yml using data container
    data:
    image: startx/centos:6
    container_name: "centos6-service-nodejs-data"
    environment:
      CONTAINER_INSTANCE: "centos6-service-nodejs-data"
    service:
    image: startx/sv-nodejs:centos6
    container_name: "centos6-service-nodejs"
    environment:
      CONTAINER_INSTANCE: "centos6-service-nodejs"
    volume_from:
      - data:rw
    

Using this image in your own container

You can use this Dockerfile template to start a new personalized container based on this container. Create a file named Dockerfile in your project directory and copy this content inside. See docker guide for instructions on how to use this file.

FROM startx/sv-nodejs:centos6
#... your container specifications
CMD ["/bin/run.sh"]

Environment variable

Variable Type Mandatory Description
APP_MAIN string yes Path to the application entrypoint. default is /data/nodejs/app.js
CONTAINER_INSTANCE string yes Container name. Should be uning to get fine grained log and application reporting
CONTAINER_TYPE string no Container family (os, service, application. could be enhanced
CONTAINER_SERVICE string no Define the type of service or application provided
LOG_PATH auto auto default set to /logs and used as a volume mountpoint
APP_PATH auto auto default set to /data and used as a volume mountpoint
TMP_APP_PATH auto auto default set to /tmp/nodejs and used to hold app content and copy to $APP_PATH on startup (if $APP_PATH is empty)

Exposed port

Port Description
8080 network port used to communicate with the running application. Network protocol depend on the running app content.

Exposed volumes

Container directory Description
/logs log directory used to record container and nodejs logs
/data data directory served by nodejs. If empty will be filled with app on startup. In other case use content from $TMP_APP_PATH directory

Testing the service

access to the running application accoridn to the protocol(s) used in your application. For webcontent, you can use firefox http://localhost:8000. Change port and hostname according to your current configuration

For advanced users

You want to use this container and code to build and create locally this container, follow theses instructions.

This section will help you if you want to :

  • Get latest version of this service container
  • Enhance container content by adding instruction in Dockefile before build step

You must have a working environment with the source code of this repository. Read and follow how to setup your working environment to get a working directory. The following instructions assume you are at the top level of your working directory.

Build & run a container using docker

  1. Switch to the flavour branch with git branch centos6
  2. Jump into the container directory with cd Services/nodejs
  3. Build the container using docker build -t sv-nodejs .
  4. Run this container
    1. Interactively with docker run -p 8080:8080 -v /logs -it sv-nodejs-centos6. If you add a second parameter (like /bin/bash) to will run this command instead of the default entrypoint. Usefull to interact with this container (ex: /bin/bash, /bin/ps -a, /bin/df -h,...)
    2. As a daemon with docker run -p 8080:8080 -v /logs -d sv-nodejs-centos6

Build & run a container using docker-compose

  1. Switch to the flavour branch with git branch centos6
  2. Jump into the container directory with cd Services/nodejs
  3. Run this container
    1. Interactively with docker-compose up Startup logs appears and escaping this command stop the container
    2. As a daemon with docker-compose up -d. Container startup logs can be read using docker-compose logs

If you experience trouble with port already used, edit docker-compose.yml file and change port mapping

Docker Pull Command
Owner
startx
Source Repository

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