Getting Docker up on Linode, with Ubuntu 16.04

Comments

6 responses to “Getting Docker up on Linode, with Ubuntu 16.04”

1. 

   Amin

   June 15, 2016

   Very helpful, thanks for the tip! It’s really hard to find resources on running Docker on Linode.

2. 

   Hans Martin Galliker

   June 17, 2016

   Thanks a lot Luke for the helpful write-up. It was this short guide which let me succeed after all.

   @Amin and others: Following my installation documentation, might be helpful for you to overcome problems:

   * Configure GRUB2 and change kernel > Identify ‘current’ kernel version *
   Apply uname -a

   * Install Grub2 *
   Apply apt-get install linux-image-virtual grub2
   Choose to not install it to MBR / disk image. But since Linode provides the grub bootloader, the system need only provide the grub.cfg file
   Verify kernel version /boot/vmlinuz-4.4.0-22-generic

   * Configuring Grub *
   Apply nano /etc/default/grub
   Change / Add GRUB_TIMEOUT=10
   GRUB_CMDLINE_LINUX=”console=ttyS0,19200n8″
   GRUB_DISABLE_LINUX_UUID=true
   GRUB_SERIAL_COMMAND=”serial –speed=19200 –unit=0 –word=8 –parity=no –stop=1″
   GRUB_TERMINAL=serial
   Apply update-grub

   * If you later install an updated kernel, you’ll need to run this command again to update your GRUB menu. By default, the first kernel in the list will be booted. *

   * Rebooting into Grub2 Mode *
   Edit Configuration Profiles section of Linode’s Dashboard
   Select GRUB 2 (from the Kernel drop down menu in Boot Settings section)

   * Identify ‘after’ kernel version *
   Apply uname -a
   Output Linux greenfree 4.4.0-22-generic #40-Ubuntu SMP

   * Prepare for Docker installation > Update apt sources *
   Apply apt-get update
   apt-get install apt-transport-https ca-certificates

   * Add the new GPG key *
   Apply apt-key adv –keyserver hkp://p80.pool.sks-keyservers.net:80 –recv-keys [YourKeyID]

   * Update /etc/apt/sources.list.d/docker.list file (if not existent create it) *
   Open Nano nano /etc/apt/sources.list.d/docker.list
   Remove All previous entries
   Add deb https://apt.dockerproject.org/repo ubuntu-xenial main (my Ubuntu OS)

   * Update apt package index *
   Apply apt-get update
   Purge the old repo apt-get purge lxc-docker (if it exists)

   * Verify that apt is pulling from the right repository *
   Apply apt-cache policy docker-engine

   * Install linux-image-extra kernel package (allows use of AUFS storage driver) *
   Apply apt-get update (Update package manager)
   Apply apt-get install linux-image-extra-$(uname -r)

   * Install Docker *
   Update apt package index
   Apply apt-get update

   Apply apt-get install docker-engine

   * Start docker daemon *
   Apply service docker start

   * Verify docker is installed correctly *
   Apply docker run hello-world ”

   Happy to exchange experiences, email me at hello[at]eco-git.org

3. 

   Ben

   September 5, 2016

   Thanks so much for putting this together. I’ve spent the last day banging my head against the wall.

4. 

   Mike Pastore

   January 8, 2017

   Another solution is to use OverlayFS instead of AUFS. This will be the default behavior in Docker 1.13. It’s included in the Linode 4.8+ kernels so you don’t need to install an distro kernel or grub for this solution to work!

   1. Set up device-mapper so the Docker install doesn’t hang:

   sudo apt-get install dmsetup
   sudo dmsetup mknodes

   2. Install Docker:

   sudo apt-get install docker-engine

   3. Modify the service unit file for Docker to pass the storage driver argument to dockerd:

   sudo mkdir /etc/systemd/system/docker.service.d
   sudo tee -a /etc/systemd/system/docker.service.d/override.conf <<EOF
   [Service]
   ExecStart=
   ExecStart=/usr/bin/dockerd -H fd:// -s overlay
   EOF

   4. Reload systemd so it sees the new override.conf, and restart the daemon:

   sudo systemctl daemon-reload
   sudo systemctl restart docker

   Hope this helps!

5. 

   Mike Pastore

   January 8, 2017

   Sorry, I meant to add that this solution is tested for Docker 1.12.5 installed from apt.dockerproject.org, and for more information:

   http://blog.thestateofme.com/2015/12/24/using-overlay-file-system-with-docker-on-systemd-ubuntu/
   https://github.com/docker/docker/issues/23347
   https://docs.docker.com/engine/userguide/storagedriver/overlayfs-driver/

6. 

   Johan Tez

   February 6, 2017

   Just tried the alternative solution proposed above by Mike Pastore. Works perfectly, thanks!