Upgrading the IBM Cloud Private Docker package

Upgrade Docker engines that were installed by using the IBM Cloud Private Docker package.

Upgrading the IBM Cloud Private Docker package (boot node)

Upgrade a boot node that was installed by using the IBM Cloud Private Docker package.

Download the Docker package for your platform. See IBM Cloud Private Docker packages.

Upgrade Docker on your boot node.

For Linux® x86_64, run this command:

chmod +x icp-docker-18.03.1_x86_64.bin
sudo ./icp-docker-18.03.1_x86_64.bin --upgrade

For Linux® on Power® (ppc64le), run this command:

chmod +x icp-docker-18.03.1_ppc64le.bin
sudo ./icp-docker-18.03.1_ppc64le.bin --upgrade

Ensure that Docker engine is started. Run the following command:
```
sudo systemctl start docker
```

Upgrade cluster nodes that were installed by using the IBM Cloud Private Docker package.

Switch to the /<installation_directory>/cluster/ directory.
```
 cd /<installation_directory>/cluster/
```

Upgrade Docker.
```
 sudo docker run --net=host -t -e LICENSE=accept -v "$(pwd)":/installer/cluster ibmcom/icp-inception-$(uname -m | sed 's/x86_64/amd64/g'):3.1.2-ee upgrade-docker
```
You can also use the -l option to upgrade specific cluster nodes.
- For worker nodes, use -l worker.
- In HA environments, use the -l <host_ip> to upgrade master and proxy nodes one at a time.
On all nodes, ensure that Docker engine is started. Run the following command:
```
sudo systemctl start docker
```