docker-machine-demo

Simple demo for Docker-Machine

Under MacOS

how to use

local demo

Running in local machine .

run :

  docker-machine create --driver virtualbox  --engine-registry-mirror https://registry.docker-cn.com default

if you see the error info below :

 Error creating machine: Error in driver during machine creation: Error setting up host only network on machine start: The host-only adapter we just created is not visible. This is a well known VirtualBox bug. You might want to uninstall it and reinstall at least version 5.0.12 that is is supposed to fix this issue

you need install the latest VirtualBox on your system

Here is the Download page : https://www.virtualbox.org/wiki/Downloads

you can also add config below :

default DNS for docker

  --engine-opt dns=114.114.114.114

conf the docker hub url

  --engine-registry-mirror https://registry.docker-cn.com

memory

  --virtualbox-memory 2048

cpu number

  --virtualbox-cpu-count 2

run :
```
   eval "$(docker-machine env default)"
```
to connect default machine

after the demo is done , you can run
```
   eval $(docker-machine env -u)
```
to disconnect default.
run :
```
  ./build-image.sh
```
to install image
run :
```
  docker-compose up -d 
```
to run project in docker(in your docker-machine).
check the default ip :
```
  docker-machine ip default
```
let's assume the value is 192.168.99.100
open your browser , and visit : 192.168.99.100:8080, if there is a page return with "welcome Disguess guest, are you a Girl?" , we are success .
now , we can stop default , and ready to begine a new demo.

docker-machine stop default

remote demo

Let's suppose that there is a host with a IP address of 106.14.212.41 in the Internet now .

My next demo will introduce how to deploy Docker in 106.14.212.41 through docker-machine .

Plz ensure that the memory of this host is above 2G, otherwise Docker will not get enough memory allocation.

In the following example , my remote host running environment is CentOS7 64bits.

first off all , we need to se ssh-keygen to create key pairs . And establish a connection with the online host .

For more details about ssh-keygen , you can view my posts : ssh免密连接

  // create new key pairs , named as rsa_docker
  ssh-keygen
  // Enter file in which to save the key (/var/root/.ssh/id_rsa): /var/root/.ssh/rsa_docker
  // Enter your password (123456)

  // start ssh-agent
  ssh-agent  
  
  // add rsa_docker to ssh-agent
  ssh-add /var/root/.ssh/rsa_docker
  //Enter rsa_docker's password (123456)
  
  // now , push the public key to the online host 
  ssh-copy-id [email protected]

plz pay attention that if your computer restarts , you need to run ssh-agent and add rsa_docker to it again .

run :

  docker-machine create --driver generic --generic-ip-address 106.14.212.41 remote-1

it will take a few minutes .

if success , a Complete success info will return .

run :
```
   eval "$(docker-machine env remote-1)"
```
to connect default machine

after the demo is done , you can run
```
   eval $(docker-machine env -u)
```
to disconnect default.
run :
```
  ./build-image.sh
```
to install image
run :
```
  docker-compose up -d 
```
to run project in docker(in your remote-1).

liumapp / docker-machine-demo Goto Github PK