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Update cloud-ex-machine-ocean.md
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@johndmulhausen
johndmulhausen authored Oct 7, 2016
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Expand Up @@ -27,23 +27,23 @@ If you have not done so already, go to <a href="https://digitalocean.com" target

To generate your access token:

1. Go to the Digital Ocean administrator console and click **API** in the header.
1. Go to the Digital Ocean administrator console and click **API** in the header.

![Click API in Digital Ocean console](../images/ocean_click_api.png)
![Click API in Digital Ocean console](../images/ocean_click_api.png)

2. Click **Generate New Token** to get to the token generator.
2. Click **Generate New Token** to get to the token generator.

![Generate token](../images/ocean_gen_token.png)
![Generate token](../images/ocean_gen_token.png)

3. Give the token a clever name (e.g. "machine"), make sure the **Write (Optional)** checkbox is checked, and click **Generate Token**.
3. Give the token a clever name (e.g. "machine"), make sure the **Write (Optional)** checkbox is checked, and click **Generate Token**.

![Name and generate token](../images/ocean_token_create.png)
![Name and generate token](../images/ocean_token_create.png)

4. Grab (copy to clipboard) the generated big long hex string and store it somewhere safe.
4. Grab (copy to clipboard) the generated big long hex string and store it somewhere safe.

![Copy and save personal access token](../images/ocean_save_token.png)
![Copy and save personal access token](../images/ocean_save_token.png)

This is the personal access token you'll use in the next step to create your cloud server.
This is the personal access token you'll use in the next step to create your cloud server.

### Step 3. Install Docker Machine

Expand All @@ -57,111 +57,127 @@ To generate your access token:

2. At a command terminal, use `docker-machine ls` to get a list of Docker Machines and their status.

$ docker-machine ls
NAME ACTIVE DRIVER STATE URL SWARM
default * virtualbox Running tcp:////xxx.xxx.xx.xxx:xxxx
```
$ docker-machine ls
NAME ACTIVE DRIVER STATE URL SWARM
default * virtualbox Running tcp:////xxx.xxx.xx.xxx:xxxx
```
6. Run some Docker commands to make sure that Docker Engine is also up-and-running.
6. Run some Docker commands to make sure that Docker Engine is also up-and-running.
We'll run `docker run hello-world` again, but you could try `docker ps`, `docker run docker/whalesay cowsay boo`, or another command to verify that Docker is running.
$ docker run hello-world
```
$ docker run hello-world
Hello from Docker.
This message shows that your installation appears to be working correctly.
...
Hello from Docker.
This message shows that your installation appears to be working correctly.
...
```
### Step 4. Use Machine to Create the Droplet
1. Run `docker-machine create` with the `digitalocean` driver and pass your key to the `--digitalocean-access-token` flag, along with a name for the new cloud server.
1. Run `docker-machine create` with the `digitalocean` driver and pass your key to the `--digitalocean-access-token` flag, along with a name for the new cloud server.
For this example, we'll call our new Droplet "docker-sandbox".
$ docker-machine create --driver digitalocean --digitalocean-access-token xxxxx docker-sandbox
Running pre-create checks...
Creating machine...
(docker-sandbox) OUT | Creating SSH key...
(docker-sandbox) OUT | Creating Digital Ocean droplet...
(docker-sandbox) OUT | Waiting for IP address to be assigned to the Droplet...
Waiting for machine to be running, this may take a few minutes...
Machine is running, waiting for SSH to be available...
Detecting operating system of created instance...
Detecting the provisioner...
Provisioning created instance...
Copying certs to the local machine directory...
Copying certs to the remote machine...
Setting Docker configuration on the remote daemon...
To see how to connect Docker to this machine, run: docker-machine env docker-sandbox
```
$ docker-machine create --driver digitalocean --digitalocean-access-token xxxxx docker-sandbox
Running pre-create checks...
Creating machine...
(docker-sandbox) OUT | Creating SSH key...
(docker-sandbox) OUT | Creating Digital Ocean droplet...
(docker-sandbox) OUT | Waiting for IP address to be assigned to the Droplet...
Waiting for machine to be running, this may take a few minutes...
Machine is running, waiting for SSH to be available...
Detecting operating system of created instance...
Detecting the provisioner...
Provisioning created instance...
Copying certs to the local machine directory...
Copying certs to the remote machine...
Setting Docker configuration on the remote daemon...
To see how to connect Docker to this machine, run: docker-machine env docker-sandbox
```
When the Droplet is created, Docker generates a unique SSH key and stores it on your local system in `~/.docker/machines`. Initially, this is used to provision the host. Later, it's used under the hood to access the Droplet directly with the `docker-machine ssh` command. Docker Engine is installed on the cloud server and the daemon is configured to accept remote connections over TCP using TLS for authentication.
2. Go to the Digital Ocean console to view the new Droplet.
2. Go to the Digital Ocean console to view the new Droplet.
![Droplet in Digital Ocean created with Machine](../images/ocean_droplet.png)
![Droplet in Digital Ocean created with Machine](../images/ocean_droplet.png)
3. At the command terminal, run `docker-machine ls`.
3. At the command terminal, run `docker-machine ls`.
$ docker-machine ls
NAME ACTIVE DRIVER STATE URL SWARM
default * virtualbox Running tcp://192.168.99.100:2376
docker-sandbox - digitalocean Running tcp://45.55.139.48:2376
```
$ docker-machine ls
NAME ACTIVE DRIVER STATE URL SWARM
default * virtualbox Running tcp://192.168.99.100:2376
docker-sandbox - digitalocean Running tcp://45.55.139.48:2376
```
Notice that the new cloud server is running but is not the active host. Our command shell is still connected to the default machine, which is currently the active host as indicated by the asterisk (*).
4. Run `docker-machine env docker-sandbox` to get the environment commands for the new remote host, then run `eval` as directed to re-configure the shell to connect to `docker-sandbox`.
$ docker-machine env docker-sandbox
export DOCKER_TLS_VERIFY="1"
export DOCKER_HOST="tcp://45.55.222.72:2376"
export DOCKER_CERT_PATH="/Users/victoriabialas/.docker/machine/machines/docker-sandbox"
export DOCKER_MACHINE_NAME="docker-sandbox"
# Run this command to configure your shell:
# eval "$(docker-machine env docker-sandbox)"

$ eval "$(docker-machine env docker-sandbox)"

5. Re-run `docker-machine ls` to verify that our new server is the active machine, as indicated by the asterisk (*) in the ACTIVE column.

$ docker-machine ls
NAME ACTIVE DRIVER STATE URL SWARM
default - virtualbox Running tcp://192.168.99.100:2376
docker-sandbox * digitalocean Running tcp://45.55.222.72:2376

6. Run some `docker-machine` commands to inspect the remote host. For example, `docker-machine ip <machine>` gets the host IP address and `docker-machine inspect <machine>` lists all the details.

$ docker-machine ip docker-sandbox
104.131.43.236

$ docker-machine inspect docker-sandbox
{
"ConfigVersion": 3,
"Driver": {
"IPAddress": "104.131.43.236",
"MachineName": "docker-sandbox",
"SSHUser": "root",
"SSHPort": 22,
"SSHKeyPath": "/Users/samanthastevens/.docker/machine/machines/docker-sandbox/id_rsa",
"StorePath": "/Users/samanthastevens/.docker/machine",
"SwarmMaster": false,
"SwarmHost": "tcp://0.0.0.0:3376",
"SwarmDiscovery": "",
...

7. Verify Docker Engine is installed correctly by running `docker` commands.
```
$ docker-machine env docker-sandbox
export DOCKER_TLS_VERIFY="1"
export DOCKER_HOST="tcp://45.55.222.72:2376"
export DOCKER_CERT_PATH="/Users/victoriabialas/.docker/machine/machines/docker-sandbox"
export DOCKER_MACHINE_NAME="docker-sandbox"
# Run this command to configure your shell:
# eval "$(docker-machine env docker-sandbox)"
$ eval "$(docker-machine env docker-sandbox)"
```
5. Re-run `docker-machine ls` to verify that our new server is the active machine, as indicated by the asterisk (*) in the ACTIVE column.
```
$ docker-machine ls
NAME ACTIVE DRIVER STATE URL SWARM
default - virtualbox Running tcp://192.168.99.100:2376
docker-sandbox * digitalocean Running tcp://45.55.222.72:2376
```
6. Run some `docker-machine` commands to inspect the remote host. For example, `docker-machine ip <machine>` gets the host IP address and `docker-machine inspect <machine>` lists all the details.
```
$ docker-machine ip docker-sandbox
104.131.43.236
$ docker-machine inspect docker-sandbox
{
"ConfigVersion": 3,
"Driver": {
"IPAddress": "104.131.43.236",
"MachineName": "docker-sandbox",
"SSHUser": "root",
"SSHPort": 22,
"SSHKeyPath": "/Users/samanthastevens/.docker/machine/machines/docker-sandbox/id_rsa",
"StorePath": "/Users/samanthastevens/.docker/machine",
"SwarmMaster": false,
"SwarmHost": "tcp://0.0.0.0:3376",
"SwarmDiscovery": "",
...
```
7. Verify Docker Engine is installed correctly by running `docker` commands.
Start with something basic like `docker run hello-world`, or for a more interesting test, run a Dockerized webserver on your new remote machine.
In this example, the `-p` option is used to expose port 80 from the `nginx` container and make it accessible on port `8000` of the `docker-sandbox` host.
$ docker run -d -p 8000:80 --name webserver kitematic/hello-world-nginx
Unable to find image 'kitematic/hello-world-nginx:latest' locally
latest: Pulling from kitematic/hello-world-nginx
a285d7f063ea: Pull complete
2d7baf27389b: Pull complete
...
Digest: sha256:ec0ca6dcb034916784c988b4f2432716e2e92b995ac606e080c7a54b52b87066
Status: Downloaded newer image for kitematic/hello-world-nginx:latest
942dfb4a0eaae75bf26c9785ade4ff47ceb2ec2a152be82b9d7960e8b5777e65
```
$ docker run -d -p 8000:80 --name webserver kitematic/hello-world-nginx
Unable to find image 'kitematic/hello-world-nginx:latest' locally
latest: Pulling from kitematic/hello-world-nginx
a285d7f063ea: Pull complete
2d7baf27389b: Pull complete
...
Digest: sha256:ec0ca6dcb034916784c988b4f2432716e2e92b995ac606e080c7a54b52b87066
Status: Downloaded newer image for kitematic/hello-world-nginx:latest
942dfb4a0eaae75bf26c9785ade4ff47ceb2ec2a152be82b9d7960e8b5777e65
```
In a web browser, go to `http://<host_ip>:8000` to bring up the webserver home page. You got the `<host_ip>` from the output of the `docker-machine ip <machine>` command you ran in a previous step. Use the port you exposed in the `docker run` command.
Expand Down Expand Up @@ -197,6 +213,6 @@ If you create a host with Docker Machine, but remove it through the cloud provid
* [Use Docker Machine to provision hosts on cloud providers](https://docs.docker.com/machine/get-started-cloud/)
* [Install Docker Engine](../../installation/index.md)
* [Install Docker Engine](../../installation/index.md)
* [Docker User Guide](../../userguide/intro.md)

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