This page describes the steps for installing Smartfacts for testing Smartfacts in a Proof of Concept. To simplify the installation process, Smartfacts is not connected to your OIDC provider. Instead, a Keycloak is contained in the deployment, which is used as the OIDC provider.

Preparations

If not done so far please prepare your infrastructure as described in https://smartfacts.atlassian.net/wiki/spaces/SPD/pages/54624257/Installing+Smartfacts+for+Proof+of+Concepts#Prepare-your-infrastructure.

Setup the Kubernetes Environment

You need a Kubernetes cluster to deploy Smartfacts in. If you already have a Kubernetes infrastructure on AWS, GCP or Azure, you can use this.

Please make sure that an ingress controller of nginx or Traefik is installed.

If you don’t have a Kubernetes infrastructure you can set up a single node cluster at a vm. The following section will describe how to set zu such a cluster.

Install k3s

If your server only reaches the Internet via a proxy, you must set up your environment so that this proxy is used with k3s and helm. If this is the case, follow the instructions in this section:

  1. Edit the file ~/.bashrc for your deployment user and add the following lines:

    export http_proxy="proxy:port"
    export https_proxy="proxy:port"
    export no_proxy=localhost,.svc,.cluster.local,127.0.0.0/8,<local IP>

    Replace the placehoder “<local IP>“ with the IP address of your server.

    If you need to pass username and password to the proxy, change the first two lines to

    export http_proxy="username:password@proxy:port"
    export https_proxy="username:password@proxy:port"
  2. In the k3s installation script, some commands are executed as the root user with sudo. We must therefore ensure that the command called with sudo also sees the proxy variables.
    To ensure this, call the command

    sudo visudo

    and add the following lines to the end of the file:

    Defaults  env_keep += "http_proxy"
    Defaults  env_keep += "https_proxy"
    Defaults  env_keep += "no_proxy"
    Defaults  env_keep += "HTTP_PROXY"
    Defaults  env_keep += "HTTPS_PROXY"
    Defaults  env_keep += "NO_PROXY"

3. Log out and log in again with your user so that the changes in the .bashrc file from step 1 are applied.

Execute the installation of k3s with the command

curl -sfL https://get.k3s.io | INSTALL_K3S_VERSION=v1.27.9+k3s1 sh -

Wait 30 seconds.

You can test it with the command sudo kubectl get node. It will provide an output similar to this one:

NAME   STATUS  ROLES                 AGE   VERSION

mysrv  Ready   control-plane,master  161d  v1.23.6+k3s1

For more information see: https://rancher.com/docs/k3s/latest/en/quick-start

Install helm

curl -fsSL -o get_helm.sh https://raw.githubusercontent.com/helm/helm/main/scripts/get-helm-3 && chmod 700 get_helm.sh && ./get_helm.sh

For more information see: https://helm.sh/docs/intro/install

Set Link to Cluster Configuration

sudo mkdir -p /root/.kube
sudo ln -s /etc/rancher/k3s/k3s.yaml /root/.kube/config

Prepare Deployment

Add MID Repository

You will need a username and password to download the helm chart and containers from MID's repository. You will receive username and password from your MID contact or from cops@mid.de.

sudo helm repo add mid-smartfacts https://repo.secure.mid.de/chartrepo/smartfacts --username <USERNAME> --password <PASSWORD>
sudo helm repo update

Provide Certificates and Key as Base64 String

Make sure that the complete certificate chain is contained in a file in correct order in x509 PEM format. The content of certificates in PEM formate looks like this:

-----BEGIN CERTIFICATE-----
<Many lines of certificate data encoded in base64>
-----END CERTIFICATE-----

In a certificate chain, multiple blocks of certificates are present, representing the server, intermedate and root certificates.

The correct order of the blocks is from top to bottom:

Run the following command to extract everything from the .pfx file:

openssl pkcs12 -in certificate.pfx -out full.pem -nodes

Save certificate chain as a base64 string:

cat <your certificate chain.crt> | base64 -w0 > chain.crt.base64

Save certificate key as base64 string:

cat <your certificate key.key> | base64 -w0 > key.base64

Customize Values File

Option: Use a private container registry

If your Kubernetes cluster has no access to the internet, you can pull the images from the MID registry, re-tag them and push them to your private registry. State the name of your private registry in the property

global:
  [...]
  registry: <Name of your private registry>

in your values file.

Install Smartfacts

Execute the Installation

Enter the following command to execute the Installation:

sudo helm upgrade --install --timeout 20m0s smartfacts mid-smartfacts/smartfacts -f values.yaml -n smartfacts --create-namespace

Watch Deployment (in a new Session)

Open a second session on the server and enter the following command:

sudo watch kubectl get deployments -n smartfacts

As soon as all deployments are available, the installation is ready.

Add Web Origin to Keycloak

For Smartfacts to function, it is necessary to correct a value in the Keycloak configuration.

Get the Keycloak administrator password:

sudo kubectl get secret smartfacts-keycloak-admin-secret -o 'go-template={{index .data "KEYCLOAK_PASSWORD"}}' -n smartfacts | base64 -d; echo ""

Get the URL of keycloak:

sudo kubectl get ingress -n smartfacts | grep identity | tr -s ' ' | cut -d ' ' -f3

Call this URL in a browser. Click on “Administration Console” and log in with Username “keycloak-admin” and the password returned in the step above.

Select “Clients” and the client ID “smartfacts”.

image-20240523-152851.png

Scroll down until you see the property “Web Origins”. Insert a plus sign “+” into the value field.

image-20240523-153030.png

Scroll to the bottom of the page and click on the “save” button

A note on Smartfacts PoC Test Users

For the Smartfacts PoC you can use the generated test users “poc1”…”poc50”. All poc users have the same password “poc”. For managing the test users in the CAMP use the account administrator user “acm” which has the password “acm”.

Create a Smartfacts Model Warehouse

  1. Open the Smartfacts URL in your browser: https://smartfacts.<yoursmartfactsdomain> and log-in with the account manager credentials (user “acm”, password “acm”).

  2. You will now be asked to create a Model Warehouse.

    1. Click on CREATE A NEW MODEL WAREHOUSE.

    2. In the create dialog, first select the previously created account.

    3. Provide a name for the Model Warehouse.

    4. Optionally, activate the check box Create Demo Models if you want some demo content to be added to the Model Warehouse.

Model Warehouse creation is the final step in the Smartfacts platform set-up process.

Install the Plug-Ins

It depends on which tools you want to use in connection with Smartfacts. Smartfacts provides a plugin for every tool which is supported. You can download the plug-ins from the main menu via the command Get Plug-ins.

Troubleshooting

For general Kubernetes Troubleshooting you can consult the https://kubernetes.io/docs/reference/kubectl/cheatsheet/.

Detect running containers

sudo kubectl -n smartfacts get pods

Show the logs of a pod

With the following command you can get the log files of the Smartfacts platform (pod “sfit-platform”). If you deployed with a namespace named other than “smartfacts”, adjust the value of the second variable “ns”.

If you have to call “kubectl” with “sudo”:

pod=genoslc ns=smartfacts sudo bash -c 'kubectl logs $(kubectl get pods -n $ns | grep $pod | cut -d " " -f1) -n $ns'

If “sudo” is not required:

pod=genoslc ns=smartfacts bash -c 'kubectl logs $(kubectl get pods -n $ns | grep $pod | cut -d " " -f1) -n $ns'

If you need to get the logs of another pod, change the value of the variable “pod” at the beginning of the line. Available pod names for the Smartfacts installation are the following:

value for pod variable

POD

sfit-platform

The Smartfacts platform

sfit-spa

The Smartfacts SPA

mongodb

The mongodb database

genoslc

The OSLC Connector for Smartfacts

keycloak

The keycloak pod (identity provider for PoC installations with dummy users)

Show certtool logs

Show certtool output from Job

sudo kubectl logs job.batch/smartfacts-certtool -c certtool -n smartfacts

Show Secret written by certtool (Attention: The secret does not exist if the certtool did not succeed!)

sudo kubectl get secret smartfacts-truststore -o 'go-template={{index .data "certtool.log"}}' -n smartfacts | base64 -d

Show Keycloak password

If it is necessary to login into the admin UI of Keycloak, the password for the admin user “keycloak-admin” can be optained by the following command.

sudo kubectl get secret smartfacts-keycloak-admin-secret -o 'go-template={{index .data "KEYCLOAK_PASSWORD"}}' -n smartfacts | base64 -d; echo ""

Reset lost password for keycloak-admin user

In rare cases, it might happen that the password of the keycloak-admin user is different from the password in the secret “smartfacts-keycloak-admin-secret” and is not known anymore. This section describes the steps necessary to reset this password.

To reset the password for the keycloak-admin user:

  1. Get the password from the secret like described in the section “Show Keycloak password” above. Save the password in a password manager.

  2. Edit the secret “smartfacts-keycloak-admin-secret”, this command will open the secret in a vi editor:

    sudo kubectl edit secret smartfacts-keycloak-admin-secret -n smartfacts
    1. replace the value of the field “KEYCLOAK_USER” with the base64 value for “tmp-admin”: dG1wLWFkbWlu

    2. Save and quit

  3. Restart the keycloak pod:

    pod=keycloak ns=smartfacts bash -c 'kubectl delete pod $(kubectl get pods -n $ns | grep $pod | cut -d " " -f1) -n $ns'
  4. Sign in into the keycloak UI with the user “tmp-admin” and the password saved from the secret

  5. In the Keycloak UI, switch to the realm “Master” and then to the section “users”

    1. Klick on “View all users”

    2. Klick on the ID of the user “keycloak-admin”

      image-20240723-165248.png
    3. Go to section “Credentials” and insert the correct password in the fields in section “Reset Password”

      1. Switch “Temprory” to “OFF”

        image-20240723-165616.png
      2. Klick on “Reset Password” and confirm the Reset Password dialog

    4. Log off of Keycloak

  6. Edit the secret “smartfacts-keycloak-admin-secret” again

    sudo kubectl edit secret smartfacts-keycloak-admin-secret -n smartfacts
    1. replace the value of the field “KEYCLOAK_USER” with the base64 value for “keycloak-admin”: a2V5Y2xvYWstYWRtaW4=

    2. Save and quit

  7. Restart the keycloak pod

    pod=keycloak ns=smartfacts bash -c 'kubectl delete pod $(kubectl get pods -n $ns | grep $pod | cut -d " " -f1) -n $ns'
  8. Sign in into keycloak with keycloak-admin and the password saved from the secret

    1. In the Keycloak UI switch to the realm “Master” and then to section “users”

      1. Klick on “View all users”

      2. Delete the user “tmp-admin”

        image-20240723-165203.png
  9. log out of Keycloak

How to Move k3s data to another partition or disk

Add Certificates to the Java Truststore

If Java services need to make requests to other infrastructure services (e.g. the identity provider of you company), they need to trust the certificates of these services. To trust these certificates it is necessary to have their intermediate and root certificates in the truststore of the Smartfacts installation.

This chapter describes how to add additional certificates into this truststore. The steps that require a Java installation will be done inside the sfit-platform container using its Java installation.

In this guide, we assume that the sfit-platform POD runs stable. If it restarts or crashes, use a Linux server in your company with Java installed to create the truststore.

  1. In your values.yaml file, disable the certtool. Normally the certtool runs at the beginning of the deployment process and re-creates the truststore. This would overwrite our manual changes.
    To disable the certtool insert the following snippet into your values.yaml file (or set the property to false if it already exists):

    certtool:
      enabled: false
  2. Copy the intermediate or root certificates that should be added to the truststore to your PC with access to the cluster.

  3. Get the name of the sfit-platform pod with this command.

    sudo kubectl get pods -n smartfacts | grep sfit-platform | cut -d " " -f1
  4. Copy the certificates into the directory /tmp inside the container

    sudo kubectl cp <certificate_file> <sfit-platform_pod_name>:/tmp -n smartfacts

    replace <certificate_file> with the path to your certificate file on your PC and <sfit-platform_pod_name> with the result from the step 2.
    You can copy only one file with cp. If you need to copy multiple files, run it multiple times.

  5. Open a shell in the sfit-platform pod.

    sudo kubectl exec -it <sfit-platform_pod_name> -n smartfacts -- sh
  6. Copy the truststore to the directory /tmp and change to the tmp directory

    cp /opt/security/truststore.jks /tmp
    cd /tmp

If the file /opt/security/truststore.jks doesn`t exist, you can copy it from the path /etc/ssl/certs/java/cacerts with

cp /etc/ssl/certs/java/cacerts /tmp/truststore.jks

If you are on a different Linux machine with Java installed and the cacerts you can copy the cacerts file with this command:

cp $(readlink -f /usr/bin/java | sed "s:bin/java::")/lib/security/cacerts /tmp/truststore.jks
  1. Add your certificate to the truststore

    keytool -import -alias <your_certificate_alias> -file <certificate_file> -storetype JKS -keystore truststore.jks

    Replace the placeholder <your_certificate_alias> with an alias of the certificate in the truststore.
    Replace the placeholder <certificate_file> with the filename of your certificate file.
    Enter the password of the truststore (most likely it is “changeit”; If it’s not, look it up in the smartfacts-truststore-password secret)
    Answer the question “Trust this certificate?” with “yes”

    If you need to add more than one certificate repeat this step for all your certificates.

  2. Leave the container with exit.

  3. Copy the extended truststore back to your PC.

    sudo kubectl cp <sfit-platform_pod_name>:/tmp/truststore.jks ./extended_truststore.jks -n smartfacts
  4. Remove the secret “smartfacts-truststore” (if it is already present)

    sudo kubectl delete secret smartfacts-truststore -n smartfacts
  5. Re-create the secret “smartfacts-truststore”

    sudo kubectl create secret generic smartfacts-truststore --from-file=truststore.jks=./extended_truststore.jks -n smartfacts
  6. If there is not already a secret “smartfacts-truststore-password” present, create it with

    sudo kubectl create secret generic smartfacts-truststore-password --from-literal=password=changeit -n smartfacts

    Adopt the password if the truststore you copied has a different one.

  7. Restart the sfit-platform POD, so that it uses the new truststore (As soon as we delete the pod, the deployment will automatically create a new one with our changes loaded)

    sudo kubectl delete pod <sfit-platform_pod_name> -n smartfacts

Keep the file “extended_truststore.jks”, so that you can use it to re-build the smartfacts-truststore secret anytime.

Postgres Password – How to Fix the "'global.postgresql.auth.postgresPassword' must not be empty" Error

During Smartfacts installation, some users may face an unexpected issue with Postgres, which is part of the Keycloak service. This issue may occur in different scenarios, such as syntax, certificate or repologin errors in a values.yaml file, network issues etc.

These issues may occur during the Execute the Installation step if some of the previous steps were completed incorrectly. This step consists of two parts:

If any of the previous steps were completed incorrectly, a smartfacts namespace will be created, however, checks and jobs will terminate the deployment with the error message.

After fixing all the errors, it is possible to rerun the installation, but a new error message will occur:

During normal installation, the password for the Postgres user will be generated and assigned to the Kube secrets automatically. However, if the installation was interrupted, then this password will be missing and you must set it manually in Helm.

The best solution is to delete the incomplete smartfacts namespace, rather than setting the password manually. To do this, run this command:

sudo kubectl delete namespace smartfacts

After execution of this command, the smartfacts namespace will be deleted and you can successfully install the application.