Upgrading from 1.x to 1.5.0

This section describes the upgrade of a Cybus Connectware installation from a previous 1.x version to 1.5.0 and later.

The additional upgrade steps require you to use the docker-compose.override.yml file. If you already use such a file in your Connectware installation directory make sure to create a backup of this file to later restore.

In Connectware 1.5.0, we’ve enhanced security by primarily using a system user with limited permissions, following the principle of using the least amount of privilege needed for our software components.

As a result, you’ll need to follow a few additional steps when updating to Connectware 1.5.0 or later.

The first part of this document covers updating Connectware, while the second part focuses on agents.

With the introduction of Connectware 1.5.0, which prefers to use a system user with limited privileges whenever possible, you’ll need to modify the permissions of your volumes. This ensures that the system user has the necessary write access to the existing volumes in your setup.

The following protocols may not operate as expected in some constellations:

• Hottinger Baldwin Messtechnik (HBM)

• OPC DA

If you experience problems with these protocols after upgrading to Connectware 1.5.0, these affected services may require root permissions and are no longer supported by the internal protocol-mapper or agents without root permissions.

In this case, you should transfer the service that uses these protocols to a separate agent. This agent can have higher permissions but in a controlled manner.

To learn how to configure an agent to operate with root permissions, check out the section on agent orchestration.

Upgrading Connectware

As an additional step for this upgrade, we offer a docker-compose.override.yml file, which will help you adjusting volume permissions. The upgrade will consist of the following steps:

1. Shut down Connectware

2. Save the provided file as docker-compose.override.yml in the same folder as your Connectware docker-compose.yml

3. Start the the Docker composition to adjust volume permissions

4. Remove the docker-compose.override.yml file

5. Upgrade Connectware using the connectware-online-installer.sh script

1. Shut down Connectware

Within your installation folder, execute docker compose down. Run the command as you would usually do, be that as a regular user, using sudo or as the user root directly.

2. Download & save override file

Use this file as docker-compose.override.yml:

version: '2.0'
services:
    connectware-fix-permissions:
        user: root
        image: registry.cybus.io/cybus/connectware-fix-permissions:1.5.0
        volumes:
            - certs:/mnt/connectware_certs
            - brokerLog:/mnt/connectware_brokerLog
            - brokerData:/mnt/connectware_brokerData
            - postgresql:/mnt/connectware_postgresql
            - service-manager:/mnt/connectware_service-manager
            - systemControlServerData:/mnt/connectware_systemControlServerData
            - workbench:/mnt/connectware_workbench
    admin-web-app:
        profiles:
            - do-not-start
    auth-server:
        profiles:
            - do-not-start
    broker:
        profiles:
            - do-not-start
    connectware:
        profiles:
            - do-not-start
    container-manager:
        profiles:
            - do-not-start
    doc-server:
        profiles:
            - do-not-start
    ingress-controller:
        profiles:
            - do-not-start
    postgresql:
        profiles:
            - do-not-start
    protocol-mapper:
        profiles:
            - do-not-start
    service-manager:
        profiles:
            - do-not-start
    system-control-server:
        profiles:
            - do-not-start
    workbench:
        profiles:
            - do-not-start

Download:

1KB

upgrade-1-5-docker-compose.override.yml

If you already have a docker-compose.override.yml file for your Connectware installation, make sure to rename it before storing this file as docker-compose.override.yml.

3. Adjust volume permissions

Run docker compose up. Run the command as you would usually do, be that as a regular user, using sudo or as the user root directly. You should see output similar to this:

[+] Building 0.0s (0/0)
[+] Running 1/0
✔ Container connectware-connectware-fix-permissions-1  Created                              0.0s
Attaching to connectware-connectware-fix-permissions-1
connectware-connectware-fix-permissions-1  | Found directory: connectware_brokerData. Going to change permissions
connectware-connectware-fix-permissions-1  | Found directory: connectware_brokerLog. Going to change permissions
connectware-connectware-fix-permissions-1  | Found directory: connectware_certs. Going to change permissions
connectware-connectware-fix-permissions-1  | Found directory: connectware_postgresql. Going to change permissions
connectware-connectware-fix-permissions-1  | Postgresql volume identified, using postgresql specific permissions
connectware-connectware-fix-permissions-1  | Found directory: connectware_service-manager. Going to change permissions
connectware-connectware-fix-permissions-1  | Found directory: connectware_systemControlServerData. Going to change permissions
connectware-connectware-fix-permissions-1  | Found directory: connectware_workbench. Going to change permissions
connectware-connectware-fix-permissions-1  | All done. Found 7 volumes.
connectware-connectware-fix-permissions-1 exited with code 0

4. Remove override file

Run docker compose down to remove the temporary permissions fix container. Run the command as you would usually do, be that as a regular user, using sudo or as the user root directly. Next, delete the file docker-compose.override.yml. If you used a docker-compose.override.yml in your installation before this update, restore your original file.

5. Upgrade Connectware

Download and run the Connectware online installer like for other updates:

wget https://download.cybus.io/1.5.0/connectware-online-installer.sh
chmod +x connectware-online-installer.sh
./connectware-online-installer.sh

Run the commands as you would usually do, be that as a regular user, using sudo or as the user root directly. After updating you can start Connectware as usual.

If you wish to verify that Connectware services run with an unprivileged user, you can optionally run this command:

docker ps -qf="label=io.cybus.connectware=core" | xargs -I % docker exec % sh -c 'echo "$(hostname) runs with user ID $(id -u)"'

Only the service container-manager should be using the user ID 0.

In case of any questions or trouble, feel free to contact Cybus Support.

Upgrading Connectware agents

Connectware agents are ideally orchestrated using Docker Compose as described in agent orchestration.

In order to upgrade your agents, you need to decide between these two options:

• Adjust volume permissions to allow the unprivileged system user to write data (recommended) OR

• Adjust your docker composition to continue running with higher privileges

To benefit from the improvements to security, we recommend to adjust volume permissions over continuing to run with higher privileges.

If you are using HBM DAQ or OPC DA, you may need to follow the second option of continuing with higher privileges.

Upgrading agents by adjusting volumes

If you choose to adjust volume permissions, we offer a docker-compose.override.yml which will help you adjusting volume permissions. The upgrade will consist of the following steps:

1. Shut down the agent

2. Save the provided file as docker-compose.override.yml in the same folder as your agent’s docker-compose.yml

3. Start the the Docker composition to adjust volume permissions

4. Remove the docker-compose.override.yml file

5. Upgrade the agent by adjusting the image tag in your docker-compose.yml file

1. Shut down agent

Within your agent’s installation folder, execute docker compose down. Run the command as you would usually do, be that as a regular user, using sudo or as the user root directly.

2. Download & save override file

Use this file as docker-compose.override.yml:

 1version: '2.0'
 2services:
 3  connectware-fix-permissions:
 4    user: root
 5    image: registry.cybus.io/cybus/connectware-fix-permissions:1.5.0
 6    volumes:
 7    - protocol-mapper-agent:/mnt/connectware_agent_data
 8  protocol-mapper-agent:
 9    profiles:
10    - do-not-start

Download:

303B

upgrade-1-5-agent-docker-compose.override.yml

If you use a different name for your agent Docker service and volume than our example, you need to adjust the highlighted line to the name you use for your agent and its volume inside your docker-compose.yml file.

If you already have a docker-compose.override.yml file for your agent’s installation directory, make sure to rename it before storing this file as docker-compose.override.yml.

3. Adjust volume permissions

Run docker compose up. Run the command as you would usually do, be that as a regular user, using sudo or as the user root directly. You should see output similar to this:

[+] Building 0.0s (0/0)
[+] Running 2/2
✔ Network agent_default                          Created                                                                                                0.1s
✔ Container agent-connectware-fix-permissions-1  Created                                                                                                0.1s
Attaching to agent-connectware-fix-permissions-1
agent-connectware-fix-permissions-1  | Found directory: connectware_agent_data. Going to change permissions.
agent-connectware-fix-permissions-1  | All done. Found 1 volumes.
agent-connectware-fix-permissions-1 exited with code 0

4. Remove override file

Run docker compose down to remove the temporary permissions fix container. Run the command as you would usually do, be that as a regular user, using sudo or as the user root directly. Next, delete the file docker-compose.override.yml. If you used a docker-compose.override.yml for your agent before this update, restore your original file.

5. Upgrade the agent

Set the image tag used for the agent to the same tag that your current Connectware installation uses, but at least 1.5.0. If you have not yet upgraded your Connectware to at least version 1.5.0, please do so now.

Example:

version: '2.0'
services:
    protocol-mapper-agent:
        image: registry.cybus.io/cybus/protocol-mapper:1.5.0
        environment:
            CYBUS_AGENT_MODE: distributed
            CYBUS_AGENT_NAME: myAgent
            CYBUS_MQTT_HOST: 172.17.0.1
        volumes:
            - protocol-mapper-agent:/data
        restart: unless-stopped
        network_mode: host
        hostname: myAgent
volumes:
    protocol-mapper-agent:

You can now start your agent as usual, for example by running docker compose up -d. Run the command as you would usually do, be that as a regular user, using sudo or as the user root directly.

In case of any questions or trouble, feel free to contact Cybus Support.

Upgrading by using root privileges

If you have not yet upgraded your Connectware to at least version 1.5.0, please do so first.

As an alternative to modifying volume permissions, or if you use a protocol that requires elevated permissions, you can modify your agent’s docker-compose.yml file to specify the system user which is used for the container.

To do so, simply add user: root to the docker compose service of your agent, while adjusting the image tag to the same tag that your current Connectware installation uses, but at least 1.5.0, as highlighted in this example:

version: '2.0'
services:
    protocol-mapper-agent:
        user: root
        image: registry.cybus.io/cybus/protocol-mapper:1.5.0
        environment:
            CYBUS_AGENT_MODE: distributed
            CYBUS_AGENT_NAME: myAgent
            CYBUS_MQTT_HOST: 172.17.0.1
        volumes:
            - protocol-mapper-agent:/data
        restart: unless-stopped
        network_mode: host
        hostname: myAgent
volumes:
    protocol-mapper-agent:

You can now start your agent as usual, for example by running docker compose up -d. Run the command as you would usually do, be that as a regular user, using sudo or as the user root directly.

If you use a docker run command, you can simply add --user=root to the command.

In case of any questions or trouble, feel free to contact Cybus Support.