Docker - Custom Setup/CENTOS

Docker Basic Install

1. Linux user Group - Create a docker Group 
     groupadd docker
     wget https://get.docker.com/builds/Linux/x86_64/docker-latest -O docker
     chmod +x docker 
     Move the docker file to mv docker /usr/bin/
     gpasswd -a admin docker {admin can be any of your docker admin users}

2. Folder Structure
     sudo mkdir -p /docker/var/lib 
     sudo chown root:docker -R /docker/
     /*this folder stores images and docker binary creates a list of folders for its purposes. Mounting the files on a seperate        disk or partition is recommended  */

3. Bridge Interface
     a. create a file for bridge interface configuration /etc/sysconfig/network-scripts/ifcfg-bridge0
     b. place the following configuration in the file:
          DEVICE=bridge0
          TYPE=Bridge
          BOOTPROTO=static
          IPADDR=10.20.20.1
          NETMASK=255.255.255.0
          ONBOOT=yes
          STP=no     
           
4. Docker Daemon
     sudo docker -d -b bridge0 --dns="8.8.8.8" --group="docker" --graph="/docker/var/lib" --selinux-enabled=false

5. Docker Systemd - docker.service
     A. create docker.service file on the following path /usr/lib/systemd/system/
     Copy the following:
     *****************************************************
       [Unit]
        Description=Docker Application Container Engine
        Documentation=http://docs.docker.com
        After=network.target
        
        [Service]
        Type=notify
        ExecStart=/usr/bin/docker -d -b bridge0 --dns="8.8.8.8" --group="docker" --graph="/docker/var/lib" --selinux-enabled=false
        LimitNOFILE=1048576
        LimitNPROC=1048576
        MountFlags=private
        
        [Install]
        WantedBy=multi-user.target
        *****************************************************
      B. Enable and the start service
         sudo systemctl enable docker.service
         sudo systemctl start docker.service
      C. Test the connectivity to the daemon
         docker version
         docker pull centos
         docker images

jboss-mysql-apache Docker container

1. Docker Base Images - Centos/Ubuntu as required.
     a. docker pull centos
     b. docker pull ubuntu
2. Docker Containers - Basic
     a. Hard Disk Space: 
     b. Networking Bind to bridge: 
     c. RAM: 
     d. Base Host mount point:
3. Docker Containers - Application
     a. OPEN-JDK
     b. JBOSS Wildfly
     c. LAMP Stack
4. Exposing services