Upgrading Private Cloud to the latest version

1 Introduction

This document describes how an existing installation of Mendix for Private Cloud can be upgraded to the latest version.

Both the Mendix Operator and Mendix Agent should be upgraded at the same time.

2 Upgrading to Mendix Operator v1.2.0

2.1 Preparation

Open a Bash-compatible terminal and set the target namespace where the Operator is currently installed:

OPERATOR_NAMESPACE={namespace where the Mendix Operator is installed}

All the following commands require the OPERATOR_NAMESPACE variable to be set. When opening a new terminal, re-run this command again.

Check the current version of the Operator by running the following command:

kubectl -n $OPERATOR_NAMESPACE get deployment mendix-operator -o=jsonpath='{.spec.template.spec.containers[].image}' 

• If the image name looks similar to quay.io/digital_ecosystems/mendix-operator:1.1.{NUMBER}, follow the upgrade guide from Mendix Operator v1.1.*.

• If the image name looks similar to quay.io/digital_ecosystems/mendix-operator:1.0.{NUMBER}, follow the upgrade guide from Mendix Operator v1.0.*.

2.2 Upgrading from Mendix Operator v1.0.*

This process will take about 15 to 30 minutes. During the upgrade process, the Mendix Operator will have to be stopped and will not process any changes. Apps and Environments managed by the Operator will keep running during this process and will be restarted in the cleanup step.

2.2.1 Stop the Operator

To stop the Operator, run the following command:

kubectl -n $OPERATOR_NAMESPACE scale deployment mendix-operator --replicas=0

2.2.2 Upgrading the Custom Resource Definitions

Run the following command to upgrade to the latest version of the Custom Resource Definitions for the Mendix Operator:

kubectl apply -f https://installergen.private-cloud.api.mendix.com/privatecloud/crds/v1

Custom Resource Definitions allow to manage Mendix pplications with Kubernetes APIs and tools such as kubectl and oc.

2.2.3 Upgrading the Mendix Operator Deployment

Run the following command to switch to Mendix Operator version 1.2.0:

kubectl -n $OPERATOR_NAMESPACE patch deployment mendix-operator -p \
  '{"spec":{"template":{"spec":{"containers":[{"name":"mendix-operator","image":"quay.io/digital_ecosystems/mendix-operator:1.2.0"}]}}}}'

2.2.4 Updating the Mendix Operator Configuration

Run the following commands to switch to the latest component versions:

kubectl -n $OPERATOR_NAMESPACE patch operatorconfiguration mendix-operator-configuration --type merge -p \
'{"spec":{
    "sidecarImage":"quay.io/digital_ecosystems/mx-m2ee-sidecar:1.1.0",
    "builderImage":"quay.io/digital_ecosystems/image-builder:ingvar-rhel",
    "buildRuntimeBaseImage":"index.docker.io/mendix/runtime-base:{{.MxRuntimeVersion}}-rhel",
    "dockerfile":null
}}'

Set the default requests and limits for the Mendix Runtime pods:

kubectl -n $OPERATOR_NAMESPACE patch operatorconfiguration mendix-operator-configuration --type merge -p \
'{"spec":{
    "runtimeResources":{"limits":{"cpu":"1000m","memory":"512Mi"},"requests":{"cpu":"100m","memory":"512Mi"}}
}}'

Set the configuration for the readiness and liveness probes:

kubectl -n $OPERATOR_NAMESPACE patch operatorconfiguration mendix-operator-configuration --type merge -p \
'{"spec":{
    "runtimeLivenessProbe":{"initialDelaySeconds":60,"periodSeconds":15},
    "runtimeReadinessProbe":{"initialDelaySeconds":5,"periodSeconds":1}
}}'

Set the type for all Storage Plans to on-demand:

kubectl -n $OPERATOR_NAMESPACE get storageplan --no-headers=true -o name | sed -e 's/.*\///g' | \
  xargs -I {} kubectl -n $OPERATOR_NAMESPACE patch storageplan {} --type=merge -p '{"spec":{"type":"on-demand"}}'

2.2.5 Start the Mendix Operator

To start the updated version of the Mendix Operator, run:

kubectl -n $OPERATOR_NAMESPACE scale deployment mendix-operator --replicas=1

2.2.6 Cleanup Phase

Delete StatefulSets from the Namespace where the Operator was installed:

kubectl -n $OPERATOR_NAMESPACE delete --all statefulsets

These StatefulSets were replaced with deployments when the new version of the Operator was started.

2.3 Upgrading from Mendix Operator v1.1.*

This process will take a few minutes. During the upgrade process, the Mendix Operator will be restarted. Apps and Environments managed by the Operator will be restarted after the upgrade process is completed.

2.3.1 Upgrading the Custom Resource Definitions

Run the following command to upgrade to the latest version of the Custom Resource Definitions for the Mendix Operator:

kubectl apply -f https://installergen.private-cloud.api.mendix.com/privatecloud/crds/v1

Custom Resource Definitions allow to manage Mendix pplications with Kubernetes APIs and tools such as kubectl and oc.

2.3.2 Upgrading the Mendix Operator Deployment

Run the following command to switch to Mendix Operator version 1.2.0:

kubectl -n $OPERATOR_NAMESPACE patch deployment mendix-operator -p \
  '{"spec":{"template":{"spec":{"containers":[{"name":"mendix-operator","image":"quay.io/digital_ecosystems/mendix-operator:1.2.0"}]}}}}'

3 Upgrading to Mendix Gateway Agent v1.1.1

Before upgrading to the Mendix Gateway Agent v1.1.1, first upgrade the Mendix Operator to the latest version and set the OPERATOR_NAMESPACE variable in your Bash terminal as described above.

Run the following command to switch to the Mendix Agent version 1.1.1:

kubectl -n $OPERATOR_NAMESPACE patch deployment mendix-agent -p \
  '{"spec":{"template":{"spec":{"containers":[{"name":"mendix-agent","image":"quay.io/digital_ecosystems/kubernetes-agent:1.1.1"}]}}}}'