Note: Development and Testing purposes only. Not supported in production environments.

 

Link to other containerization articles

Containerization Hub

 

Introduction

Currently, in order to set up an AF Server for testing/development purposes, you have two choices.

 

1. Install SQL Server and AF Server on your local machine

The problem with this method is that there is no isolation from the host operating system. Therefore, you risk the stability of the host computer if something goes wrong. You also can't spin up multiple AF Servers this way.

 

2. Provision a VM and then install SQL Server and AF Server on it

While this method provides isolation, the problem lies in the time it takes to get it set up and also the size of the VM which includes many unnecessary components.

 

There is a better way!

Today, I will be teaching you how spin up AF Server instances in less than 1 minutes (after performing the initial setup which might take a bit longer). This is made possible by the usage of containerization technology.

 

Requirements

Windows Server build 1709, Windows Server 2016 (Core and with Desktop Experience) or Windows 10 Professional and Enterprise (Anniversary Edition). Ensure that your system is current with the Windows Update.

 

Benefits

1. Portability. Easy to transfer containers to other container hosts that meet the prerequisites. No need to do tedious migrations.

2. Side by side versioning. Ability to run multiple versions of AF Server on the same container host for compatibility testing and debugging purposes.

3. Speed. Very fast to deploy.

4. Resource efficiency and density. More AF Servers can run on the same bare metal machine compared to virtualization.

5. Isolation. If you no longer need the AF Server. You can remove it easily. It won’t leave any temporary or configuration files on your container host.

6. Able to use with container orchestration systems such as Swarm or Service Fabric.

 

Set up

Install Docker

For Windows 10,

You can install Docker for Windows. Please follow the instructions here

 

For Windows Server 2016,

You can use the OneGet provider PowerShell module. Open an elevated PowerShell session and run the below commands.

Install-Module -Name DockerMsftProvider -Repository PSGallery -Force
Install-Package -Name docker -ProviderName DockerMsftProvider -Force
Restart-Computer -Force

 

Install AF Server image

Run the following command at a console. When prompted for the username and password during login, please contact me (elee@osisoft.com) for them. Currently, this image is only offered for users who already have a PI Server license or are PI Developers Club members (try it now for free!). You will have to login before doing the pull. Otherwise, the pull will be unsuccessful.

docker login
docker pull elee3/afserver:18x
docker logout

Remember to check digest of image to make sure it is not tampered with.

18x: digest: sha256:4ce64e6dafa4fe93d3cf2ef4fb3a38ddadd4493e10e7a68efd809b92d946a77f

 

Deployment

Now that the setup is complete, you can proceed to running the container image. To do so, use the following command.

Replace <DNS hostname> and <containername> with one of your own picking. Remember to pick a DNS hostname that is unique in your domain.

docker run -d --hostname <DNS hostname> --name <containername> elee3/afserver:18x

 

You can now open up PI System Explorer on your local machine and connect to the AF Server by specifying the DNS Hostname that you chose earlier. When prompted for credentials, use

User name: afadmin

Password: qwert123!

Check the box to remember the credentials so that you won't have to enter it every time.

 

You can choose to rename the AF Server if you wish.

 

And you are done! Enjoy the new AF Server instance that you have created!

 

Using with AF SDK

To connect to the AF Server from code using AF SDK, the following Connect overload can be utilized with the same credentials as above.

PISystem.Connect Method (NetworkCredential)

 

Multiple AF Servers

In order to spin up another AF Server instance, follow the steps above. When you get the new container running. You have to change the ServerID. You can do this via

docker exec -i <containername> cmd /c "cd %pihome64%\af&afdiag.exe /cid:<guid>"

You can generate a new guid using this.

 

You do not need to manually generate a new Server ID anymore. The image does it automatically for you.

 

Destroy AF Server

If you no longer need the AF Server, you can destroy it using

docker stop <containername>
docker rm <containername>

 

Limitations

This example uses a public SQL Express container image which is currently not available for use in a production environment. (Changed to a SQL Express image that I built myself)

This example relies on local accounts for authentication. Refer to the following article if you want to use Kerberos. Spin up AF Server container (Kerberos enabled)

 

New updates (14 Feb 2018)

1. 2017R2 tag is now available

2. Image has been updated with ability to import in an existing AF Server backup in the form of PIFD.bak file. To do this, run

docker run -di --hostname <DNS hostname> --name <containername> -v <path to folder containing PIFD.bak>:c:\db elee3/afserver:2017R2 migrate.bat

 

New updates (30 May 2018)

1. Local account is no longer in the administrators group. Only a mapping to an AF Identity is done (better security)

 

New updates (18 Jun 2018)

1. Added reminder to check digest of the image to make sure image has not been tampered with

 

New updates (2 Jul 2018)

1. Changed tag from 2017R2 to 17R2

2. Removed telemetry

 

New updates (13 Jul 2018)

1. Changes to facilitate upgrading to 2018 container

 

New updates (4 Sep 2018)

1. Updated to use tag 18x which comes with health check and some performance improvements

 

New updates (26 Oct 2018)

1. New tag 18s comes with SQL data files persisted externally