Setup a machine in the cloud

Setup box on Azure

  1. Login to Azure. You can use a personal account or request access to your company account. Ask your company's devops team for a terraform script to accomplish this in minutes.
  2. Optionally, we recommend that you map your <machine-ip> to a friendly domain name like <myName-cloud-box-1.domain.com>
    1. If you have a CloudFlare account, use it.
    2. Configure cloudflare for DNS only. Bypass any HTTP related CDN.
    3. This may take some time to take effect and will hopefully be ready for you to use by the time you finish rest of the steps.
  3. Use ssh to login:
    1. either: ssh <username>@<machine-ip>
    2. or: ssh <username>@<myName-cloud-box-1.domain.com>
  4. Install docker-compose on your cloud box. You can copy-paste the following script, which is a multi-line command and it will "just work."

    sudo apt-get update && \
    sudo apt-get --assume-yes install apt-transport-https ca-certificates && \
    sudo apt-key adv --keyserver hkp://ha.pool.sks-keyservers.net:80 --recv-keys 58118E89F3A912897C070ADBF76221572C52609D  && \
    echo "deb https://apt.dockerproject.org/repo ubuntu-xenial main" | sudo tee /etc/apt/sources.list.d/docker.list && \
    sudo apt-get update && \
    sudo apt-get --assume-yes install tree && \
    sudo apt-get --assume-yes install mosh && \
    sudo apt-get --assume-yes install docker-engine && \
    echo "alias deleteContainers='docker rm \$(docker ps -a -q)'" >> ~/.bash_aliases && \
    echo "alias removeImages='docker rmi \$(docker images -f "dangling=true" -q)'" >> ~/.bash_aliases && \
    sudo service docker start && \
    LATEST=$(
    sudo curl -sSI https://github.com/docker/compose/releases/latest |
     tr -d '\r' |
     awk -F'/' '/^Location:/{print $NF}'
    ) && \
    sudo curl -L "https://github.com/docker/compose/releases/download/${LATEST}/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose && \
    sudo chmod +x /usr/local/bin/docker-compose && \
    docker-compose --version
    
  5. At this point you have a powerful and scalable setup. We will put it to good use as we explore various exercises in this training guide.
  6. Let's do a small exercise to show off the power of this setup.
  7. Clone a sample github project and launch it:

    mkdir -p ~/dev && cd ~/dev && \
    git clone https://github.com/ShoppinPal/loopback-mongo-sandbox.git && \
    cd ~/dev/loopback-mongo-sandbox && \
    docker-compose run builder npm install && \
    docker-compose up
    
  8. What did we just do?
    1. Cloned a project.
    2. Installed dependencies.
    3. Finally the docker-compose up command:
      1. launched the app by mounting the local source code and dependencies into a docker container,
      2. and launched MongoDB as its database.
  9. Troubleshooting
    1. If you run into this problem:
       Couldn't connect to Docker daemon at http+docker://localunixsocket - is it running?
      
      1. try adding your user to the docker group, reference:
        • sudo usermod -aG docker <username>
      2. if that doesn't do it, then login/logout of the ssh session
      3. ultimately restart your machine and that should definitely do it.
  10. Let's browse to http://<machine-ip>:3000/explorer to see a fully working REST~ful API!
    1. If you had setup a DNS record previously then you can also try: http://<myName-cloud-box-1.domain.com>:3000/explorer to see a fully working REST~ful API!
    2. If all the containers are up and you are still not able to access the application from browser, then make sure you have enabled inbound/outbound security rules on your remote host.

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