Installation of loklak with Docker

Docker is a way to move applications including the operating system to servers.

Get a Docker image

Each of the following sections depend on a docker image with a loklak server inside. This section shows you how to get such an image. Some possibilities may be used in the sections but you can may be able to exchange them.

Pull a loklak docker image

Pull a docker image from dockerhub.

Type this command in your terminal: docker pull mariobehling/loklak

Build a docker image on your local machine

  1. Type the following commands in terminal

    sudo apt-get update && sudo apt-get upgrade -y
    sudo apt-get install
    sudo docker build
  2. You will get a hash from last command. Copy that hash and do...

    sudo docker tag <IMAGE_HASH> <NAME_FOR_IMAGE>

Automated build on Cloud using GitHub repository

  1. Signup for Docker
  2. Go to Settings > Linked Accounts & Services.
  3. Add your GitHub account and select an access level “Public and Private”, or “Limited Access”.
  4. Go to your GitHub account. Settings > Applications.
  5. Allow access for Docker Hub Registry.
  6. Allow service hook for the repository in its settings > Webhooks & Services.
  7. Select a source repository to build image in Docker Hub.
  8. Enable rebuilding the Docker image when a commit is pushed to the GitHub repository.
  9. Congratulations, you have completed the setup of automated image build.

Installing loklak on Bluemix with Docker

  1. Install docker on your system

  2. Get a Bluemix Account with this URL:
    2.1 Press Sigup and type in your credentials
    2.2 Check your email and press the validation link
    2.3 Sign in to bluemix

  3. Make sure you are in US South. The URL is (beside US South there is London and Sydney)

  4. Press Dashboard and create a space called dev

  5. Install cloud foundry command line tools for your OS from here In Linux:

    dpkg -i cf-cli-version.dep
  6. Install ic plugin as described here Linux:

    cf install-plugin
  7. Login to bluemix with

    cf login

    API endpoint is

  8. Login to docker on bluemix with cf ic login (No credentials are necessary of you logged in to bluemix before

  9. Create namespace with

    cf ic namespace set <your namespace like hugo, make sure the name is unique>
    root@44ee147e1aa5:/# cf ic namespace set hugo
      "code": "IC5090E",
      "description": "Cannot assign namespace hugo to org 8b826387-9960-48d6-a409-1c5347b937af. Please ensure the namespace is not already in use.",
      "incident_id": "df24a7aedde48fbb",
      "name": "NamespaceToOrgAssignError",
      "rc": "409",
      "type": "Infrastructure" 
    root@44ee147e1aa5:/# cf ic namespace set otto
  10. Init your docker connection with cf ic init

  11. Upload the loklak docker file to your namespace with cf ic cpi mariobehling/loklak loklak (takes some time)

  12. Create docker group with: (the XXXX must be unique, play around to found a free name)

cf ic group create --name loklak --auto --desired 2 -m 1024 -n XXXX -d -p 80<namespace>/loklak
  1. Check if your group is running either with pressing Dashboard in the browser or:
cf ic group list
  1. Wait until your container group is build and the network is configured (>1 minute) and
check at is working with your version of loklak
  1. Send your own bluemix loklak link to Mario in order to prove your done it

Installing loklak on AWS with Docker

  1. Sign in to AWS

  2. In the top-right corner, choose a area you want to set up the instance, e.g.: Asia Pacific (Singapore).

  3. In the console panel, choose EC2. In EC2 Control Panel, choose key pairs, under Network & Security, and create a new key pair. It will automatically download the private key, and you should do chmod 400 YOUR_KEY_NAME to prevent other user to access your private key. After that, go back to your dashboard, and click Launch Instance.

  4. In Step 1: Choose an Amazon Machine Image, we choose Ubuntu Server 14.04 LTS (HVM), SSD Volume Type.

  5. In Step 2: Choose an Instance Type, we choose t2.micro(Warning: t2.micro is not suitable for running loklak for a long period, and AWS may shut down your instance(block your Internet access on specific port) at any time. t2.micro instance users are only allow to use 10% of a single CPU core on average. In our case, loklak_server uses 30 - 40% on average. Reference: Burstable Instance Case study: Real case running loklak)

  6. Then we click Configure Instance Details, do not create a instance yet.

  7. Under Auto-assign Public IP, we choose Enable

  8. Then we click Next: Add Storage

  9. We modify the storage to 30GiB instead of default 8Gib

  10. Click Next twice to go to Step 6: Configure Security Group. Under this, we choose All TCP for type and Anywhere for source.

  11. We are ready to launch, click Review and Launch, if everything is correct, click Launch. It will ask you to choose a key pair, choose the one we just created.

  12. We go back to EC2 control panel again. Click on instances on the left hand side. Then choose the instance you just created, and click connect button on top. It will you connect to your EC2 by giving you a example like:

    ssh -i "loklak.pem"
  13. Once connected, we have to set up docker and add a 4G swapfile to prevent lack of memory:

    sudo apt-get update
    sudo apt-get -y upgrade
    sudo fallocate -l 4G /swapfile
    sudo chmod 600 /swapfile
    sudo mkswap /swapfile
    sudo swapon /swapfile
    sudo apt-get install linux-image-extra-`uname -r`
    sudo apt-key adv --keyserver hkp:// --recv-keys 58118E89F3A912897C070ADBF76221572C52609D
    echo "deb ubuntu-trusty main" | sudo tee /etc/apt/sources.list.d/docker.list
    sudo apt-get update
    sudo apt-get install docker-engine

Or, to install docker on newer versions of ubuntu (other distros are not tested) we can just do: sudo apt-get install

  1. Once docker is installed, we start our loklak-server by entering:

    sudo docker pull mariobehling/loklak
    sudo docker run -d -p 80:80 -p 443:443 mariobehling/loklak:latest
  2. Check if Loklak is running on your server, by going to your public DNS, e.g.:

Installing loklak on Google Cloud with Docker

  1. Go to Google Cloud Free Trial and sign up. You will get 300 dollars credit for 3 months.
  1. Go to the console page: Console
  1. If you don’t have any projects, a page that would guide you on how to start a project will pop up. Give your project a name.
  1. In the search bar above on console page, enter ‘Compute Engine’ and click on Compute Engine.
  1. If you have not activated billing for compute engine, click enable billing and choose your account to activate your Compute Engine. Your Google Compute Engine should be activated within a few minutes.
  1. Click Create instance to create an instance. In machine type, choose small(1 shared vCPU). Choose whatever zone you like.

    In Boot Disk, choose Ubuntu 14.04, and the disk size should be larger than 40GB. On the bottom of the page, click Management, disk, networking, access & security options to show more options. Inside of this, click into the tab Networking and choose New static IP instead of Ephemeral. Enter a name for your IP. Google will assign a IP for you. Check the two boxes Allow HTTP traffic and Allow HTTPS traffic. Finally, click Create to create an instance. Wait a few minutes for the creation to complete.

  1. Once the creation has finished, click ssh below to establish web ssh connections.
  2. In the Web Console, enter:
sudo apt-get update
sudo apt-get upgrade
sudo apt-get -y install
sudo fallocate -l 4G /swapfile
sudo chmod 600 /swapfile
sudo mkswap /swapfile
sudo swapon /swapfile
sudo docker pull mariobehling/loklak

Once finished, you will get fully working image. You can check if it exists by entering sudo docker images. Run our server by entering:

sudo docker run -d -p 80:80 -p 443:443 mariobehling/loklak

Enter your assigned HTTP IP address into your browser to check if it is working.

Installing loklak on DigitalOcean with Docker

DigitalOcean - simple cloud hosting, built for developers.

  1. Register in DigitalOcean and get 10$ credit.

  2. Click ‘Create droplet’ button, choose your droplet image (Docker), size, location and add your SSH keys.

    Droplet image

    SSH keys

  3. Click ‘Create’, wait a minute, copy ip of your new droplet and login to it using SSH:

  4. Docker is already installed, you can check it using docker version command. You should see something like this:

    root@sevazhidkov:~# docker version
     Version:      1.9.1
     API version:  1.21
     Go version:   go1.4.2
     Git commit:   a34a1d5
     Built:        Fri Nov 20 13:12:04 UTC 2015
     OS/Arch:      linux/amd64
     Version:      1.9.1
     API version:  1.21
     Go version:   go1.4.2
     Git commit:   a34a1d5
     Built:        Fri Nov 20 13:12:04 UTC 2015
     OS/Arch:      linux/amd64
  5. Pull Docker image from Loklak repository in Docker Hub (it should take about a minute):

    docker pull mariobehling/loklak
  6. OK, you’re ready to run Loklak:

    docker run -d -p 80:80 -p 443:443 mariobehling/loklak:latest
  7. Go to your droplet IP using web browser. You should see Loklak main page.