Docker options are missing after upgrade

Docker options that were previously set are missing after a Docker upgrade.

Causes

This issue can occur because the file /lib/systemd/system/docker.service is overwritten after you upgrade Docker.

Resolving the problem

Reconfigure the Docker service configuration file /etc/docker/daemon.json and the Docker environment file /etc/systemd/system/docker.service.d/docker-env-icp.conf, by completing the following steps:

• Edit the config.yaml file that is on your boot node by setting the docker_config and docker_env parameters. The following code snippet shows an example of this configuration:

   # Docker configuration option, more options see
   # https://docs.docker.com/engine/reference/commandline/dockerd/#daemon-configuration-file
   docker_config:
     log-opts:
       max-size: "100m"
       max-file: "10"
   # Docker environment setup
   docker_env:
     - HTTP_PROXY=http://1.2.3.4:3128
     - - HTTPS_PROXY=http://1.2.3.4:3128
     - - NO_PROXY=localhost,127.0.0.1,{{ cluster_CA_domain }}
  

• For Ubuntu clusters, you can use the -l option to reconfigure Docker on specific cluster nodes.

   sudo docker run --net=host -t -e LICENSE=accept -v "$(pwd)":/installer/cluster ibmcom/icp-inception-$(uname -m | sed 's/x86_64/amd64/g'):3.2.0-ee reconfig-docker -l <node_IP>
  

• If your boot node is one of your cluster nodes, reconfigure Docker on the boot node manually.

   ./icp-docker-18.06.2_x86_64.bin --reconfig --docker_env "HTTP_PROXY=http://1.2.3.4:3128 HTTPS_PROXY=http://1.2.3.4:3128 NO_PROXY=localhost,127.0.0.1,mycluster.icp" --docker_config '{
     "log-opts": {
       "max-file": "10",
       "max-size": "100m"
     }
   }'