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Chapter 2. 3scale template-based upgrade guide: from 2.9 to 2.10

This section contains information about upgrading Red Hat 3scale API Management from version 2.9 to 2.10, in a template-based deployment.

Important

In order to understand the required conditions and procedure, read the entire upgrade guide before applying the listed steps. The upgrade process disrupts the provision of the service until the procedure finishes. Due to this disruption, make sure to have a maintenance window.

2.1. Prerequisites to perform the upgrade
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This section describes the required configurations, tasks and tools to upgrade 3scale from 2.9 to 2.10 in a template-based installation.

2.1.1. Configurations
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  • 3scale supports upgrade paths from 2.9 to 2.10 with templates on OpenShift 3.11.

2.1.2. Preliminary tasks
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  • Ensure your OpenShift CLI tool is configured in the same project where 3scale is deployed.
  • Perform a backup of the database you are using with 3scale. The procedure of the backup is specific to each database type and setup.

2.1.3. Tools
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You need these tools to perform the upgrade:

  • 3scale 2.9 deployed with templates in an OpenShift 3.11 project.
  • Bash shell: To run the commands detailed in the upgrade procedure.
  • base64: To encode and decode secret information.
  • jq: For JSON transformation purposes.

Follow the procedure described in this section to upgrade 3scale 2.9 to 2.10 in a template-based installation.

To start with the upgrade, go to the project where 3scale is deployed. 

$ oc project <3scale-project>

Then, follow these steps in this order:

  1. Section 2.2.1, “Creating a backup of the 3scale project”
  2. Section 2.2.2, “Updating 3scale version number”
  3. Section 2.2.3, “Upgrading 3scale images”

2.2.1. Creating a backup of the 3scale project
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Previous step

None.

Current step

This step lists the actions necessary to create a backup of the 3scale project.

  1. Depending on the database used with 3scale, set ${SYSTEM_DB} with one of the following values:

    • If the database is MySQL, SYSTEM_DB=system-mysql.
    • If the database is PostgreSQL, SYSTEM_DB=system-postgresql.

  2. Create a back-up file with the existing DeploymentConfigs: 

    $ THREESCALE_DC_NAMES="apicast-production apicast-staging backend-cron backend-listener backend-redis backend-worker system-app system-memcache ${SYSTEM_DB} system-redis system-sidekiq system-sphinx zync zync-database zync-que"

for component in ${THREESCALE_DC_NAMES}; do oc get --export -o yaml dc ${component} > ${component}_dc.yml ; done

  3. Backup all existing OpenShift resources in the project that are exported through the export all command: 

    $ oc get -o yaml --export all > threescale-project-elements.yaml

  4. Create a back-up file with the additional elements that are not exported with the export all command: 

    $ for object in rolebindings serviceaccounts secrets imagestreamtags cm rolebindingrestrictions limitranges resourcequotas pvc templates cronjobs statefulsets hpa deployments replicasets poddisruptionbudget endpoints
do
  oc get -o yaml --export $object > $object.yaml
done
  5. Verify that all of the generated files are not empty, and that all of them have the expected content.

Next step

Section 2.2.2, “Updating 3scale version number”

2.2.2. Updating 3scale version number
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Previous step

Section 2.2.1, “Creating a backup of the 3scale project”

Current step

This step updates the 3scale release version number from 2.9 to 2.10 in the system-environment ConfigMap. AMP_RELEASE is a ConfigMap entry referenced in some DeploymentConfig container environments.

  1. To patch AMP_RELEASE, run this command: 

    $ oc patch cm system-environment --patch '{"data": {"AMP_RELEASE": "2.10"}}'

  2. Confirm that the AMP_RELEASE key in the system-environment ConfigMap has the 2.10 value: 

    $ oc get cm system-environment -o json | jq '.data["AMP_RELEASE"]'

Next step

Section 2.2.3, “Upgrading 3scale images”

2.2.3. Upgrading 3scale images
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Previous step

Section 2.2.2, “Updating 3scale version number”

Current step

This step updates the 3scale images required for the upgrade process.

2.2.3.1. Patch the system image
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  1. Create the new image stream tag: 

    $ oc patch imagestream/amp-system --type=json -p '[{"op": "add", "path": "/spec/tags/-", "value": {"annotations": {"openshift.io/display-name": "AMP system 2.10"}, "from": { "kind": "DockerImage", "name": "registry.redhat.io/3scale-amp2/system-rhel7:3scale2.10"}, "name": "2.10", "referencePolicy": {"type": "Source"}}}]'

  2. To continue the procedure, consider the database used with your 3scale deployment:

  1. To start patching the system image of 3scale with an Oracle Database, perform the following procedure: 3scale 2.9 to 2.10 using Oracle 19c.

  2. Patch the system-app ImageChangeTrigger:

    1. Remove the old 2.9-oracle trigger: 

      $ oc set triggers dc/system-app --from-image=amp-system:2.9-oracle --containers=system-master,system-developer,system-provider --remove

    2. Add the new version-specific trigger: 

      $ oc set triggers dc/system-app --from-image=amp-system:2.10-oracle --containers=system-master,system-developer,system-provider

      This triggers a redeployment of system-app. Wait until it is redeployed, its corresponding new pods are ready, and the old ones terminated.

  3. Patch the system-sidekiq ImageChange trigger:

    1. Remove the old 2.9-oracle trigger: 

      $ oc set triggers dc/system-sidekiq --from-image=amp-system:2.9-oracle --containers=system-sidekiq,check-svc --remove

    2. Add the new version-specific trigger: 

      $ oc set triggers dc/system-sidekiq --from-image=amp-system:2.10-oracle --containers=system-sidekiq,check-svc

      This triggers a redeployment of system-sidekiq. Wait until it is redeployed, its corresponding new pods are ready, and the old ones terminated.

  4. Patch the system-sphinx ImageChange trigger:

    1. Remove the old 2.9-oracle trigger: 

      $ oc set triggers dc/system-sphinx --from-image=amp-system:2.9-oracle --containers=system-sphinx,system-master-svc --remove

    2. Add the new version-specific trigger: 

      $ oc set triggers dc/system-sphinx --from-image=amp-system:2.10-oracle --containers=system-sphinx,system-master-svc

      This triggers a redeployment of system-sphinx. Wait until it is redeployed, its corresponding new pods are ready, and the old ones terminated.

  5. Scale 3scale back if you scaled it down.

  1. Patch the system-app ImageChange trigger:

    1. Remove the old 2.9 trigger: 

      $ oc set triggers dc/system-app --from-image=amp-system:2.9 --containers=system-master,system-developer,system-provider --remove

    2. Add the new version-specific trigger: 

      $ oc set triggers dc/system-app --from-image=amp-system:2.10 --containers=system-master,system-developer,system-provider

      This triggers a redeployment of system-app. Wait until it is redeployed, its corresponding new pods are ready, and the old ones terminated.

  2. Patch the system-sidekiq ImageChange trigger:

    1. Remove the old 2.9 trigger: 

      $ oc set triggers dc/system-sidekiq --from-image=amp-system:2.9 --containers=system-sidekiq,check-svc --remove

    2. Add the new version-specific trigger: 

      $ oc set triggers dc/system-sidekiq --from-image=amp-system:2.10 --containers=system-sidekiq,check-svc

      This triggers a redeployment of system-sidekiq. Wait until it is redeployed, its corresponding new pods are ready, and the old ones terminated.

  3. Patch the system-sphinx ImageChange trigger:

    1. Remove the old 2.9 trigger: 

      $ oc set triggers dc/system-sphinx --from-image=amp-system:2.9 --containers=system-sphinx,system-master-svc --remove

    2. Add the new version-specific trigger: 

      $ oc set triggers dc/system-sphinx --from-image=amp-system:2.10 --containers=system-sphinx,system-master-svc

      This triggers a redeployment of system-sphinx. Wait until it is redeployed, its corresponding new pods are ready, and the old ones terminated.

2.2.3.2. Patch the apicast image
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  1. Patch the amp-apicast image stream: 

    $ oc patch imagestream/amp-apicast --type=json -p '[{"op": "add", "path": "/spec/tags/-", "value": {"annotations": {"openshift.io/display-name": "AMP APIcast 2.10"}, "from": {"kind": "DockerImage", "name": "registry.redhat.io/3scale-amp2/apicast-gateway-rhel8:3scale2.10"}, "name": "2.10", "referencePolicy": {"type": "Source"}}}]'

  2. Patch the apicast-staging ImageChange trigger:

    1. Remove the old 2.9 trigger: 

      $ oc set triggers dc/apicast-staging --from-image=amp-apicast:2.9 --containers=apicast-staging --remove

    2. Add the new version-specific trigger: 

      $ oc set triggers dc/apicast-staging --from-image=amp-apicast:2.10 --containers=apicast-staging

      This triggers a redeployment of apicast-staging. Wait until it is redeployed, its corresponding new pods are ready, and the old ones terminated.

  3. Patch the apicast-production ImageChange trigger:

    1. Remove the old 2.9 trigger: 

      $ oc set triggers dc/apicast-production --from-image=amp-apicast:2.9 --containers=apicast-production,system-master-svc --remove

    2. Add the new version-specific trigger: 

      $ oc set triggers dc/apicast-production --from-image=amp-apicast:2.10 --containers=apicast-production,system-master-svc

      This triggers a redeployment of apicast-production. Wait until it is redeployed, its corresponding new pods are ready, and the old ones terminated.

2.2.3.3. Patch the backend image
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  1. Patch the amp-backend image stream: 

    $ oc patch imagestream/amp-backend --type=json -p '[{"op": "add", "path": "/spec/tags/-", "value": {"annotations": {"openshift.io/display-name": "AMP Backend 2.10"}, "from": {"kind": "DockerImage", "name": "registry.redhat.io/3scale-amp2/backend-rhel7:3scale2.10"}, "name": "2.10", "referencePolicy": {"type": "Source"}}}]'

  2. Patch the backend-listener ImageChange trigger:

    1. Remove the old 2.9 trigger: 

      $ oc set triggers dc/backend-listener --from-image=amp-backend:2.9 --containers=backend-listener --remove

    2. Add the new version-specific trigger: 

      $ oc set triggers dc/backend-listener --from-image=amp-backend:2.10 --containers=backend-listener

      This triggers a redeployment of backend-listener. Wait until it is redeployed, its corresponding new pods are ready, and the old ones terminated.

  3. Patch the backend-worker ImageChange trigger:

    1. Remove the old 2.9 trigger: 

      $ oc set triggers dc/backend-worker --from-image=amp-backend:2.9 --containers=backend-worker,backend-redis-svc --remove

    2. Add the new version-specific trigger: 

      $ oc set triggers dc/backend-worker --from-image=amp-backend:2.10 --containers=backend-worker,backend-redis-svc

      This triggers a redeployment of backend-worker. Wait until it is redeployed, its corresponding new pods are ready, and the old ones terminated.

  4. Patch the backend-cron ImageChange trigger:

    1. Remove the old 2.9 trigger: 

      $ oc set triggers dc/backend-cron --from-image=amp-backend:2.9 --containers=backend-cron,backend-redis-svc --remove

    2. Add the new version-specific trigger: 

      $ oc set triggers dc/backend-cron --from-image=amp-backend:2.10 --containers=backend-cron,backend-redis-svc

      This triggers a redeployment of backend-cron. Wait until it is redeployed, its corresponding new pods are ready, and the old ones terminated.

2.2.3.4. Patch the zync image
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  1. Patch the amp-zync image stream: 

    $ oc patch imagestream/amp-zync --type=json -p '[{"op": "add", "path": "/spec/tags/-", "value": {"annotations": {"openshift.io/display-name": "AMP Zync 2.10"}, "from": { "kind": "DockerImage", "name": "registry.redhat.io/3scale-amp2/zync-rhel7:3scale2.10"}, "name": "2.10", "referencePolicy": {"type": "Source"}}}]'

  2. Patch the zync ImageChange trigger:

    1. Remove the old 2.9 trigger: 

      $ oc set triggers dc/zync --from-image=amp-zync:2.9 --containers=zync,zync-db-svc --remove

    2. Add the new version-specific trigger: 

      $ oc set triggers dc/zync --from-image=amp-zync:2.10 --containers=zync,zync-db-svc

      This triggers a redeployment of zync. Wait until it is redeployed, its corresponding new pods are ready, and the old ones terminated.

  3. Patch the zync-que ImageChange trigger:

    1. Remove the old 2.9 trigger: 

      $ oc set triggers dc/zync-que --from-image=amp-zync:2.9 --containers=que --remove

    2. Add the new version-specific trigger: 

      $ oc set triggers dc/zync-que --from-image=amp-zync:2.10 --containers=que

      This triggers a redeployment of zync-que. Wait until it is redeployed, its corresponding new pods are ready, and the old ones terminated.

2.2.3.5. Patch the system-memcached image
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  1. Patch the system-memcached image stream: 

    $ oc patch imagestream/system-memcached --type=json -p '[{"op": "add", "path": "/spec/tags/-", "value": {"annotations": {"openshift.io/display-name": "System 2.10 Memcached"}, "from": { "kind": "DockerImage", "name": "registry.redhat.io/3scale-amp2/memcached-rhel7:3scale2.10"}, "name": "2.10", "referencePolicy": {"type": "Source"}}}]'

  2. Patch the system-memcache ImageChange trigger:

    1. Remove the old 2.9 trigger: 

      $ oc set triggers dc/system-memcache --from-image=system-memcached:2.9 --containers=memcache --remove

    2. Add the new version-specific trigger: 

      $ oc set triggers dc/system-memcache --from-image=system-memcached:2.10 --containers=memcache

      This triggers a redeployment of the system-memcache DeploymentConfig. Wait until it is redeployed, its corresponding new pods are ready, and the old ones terminated.

2.2.3.6. Patch the zync-database-postgresql image
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  1. Patch the zync-database-postgresql image stream: 

    $ oc patch imagestream/zync-database-postgresql --type=json -p '[{"op": "add", "path": "/spec/tags/-", "value": {"annotations": {"openshift.io/display-name": "Zync 2.10 PostgreSQL"}, "from": { "kind": "DockerImage", "name": "registry.redhat.io/rhscl/postgresql-10-rhel7"}, "name": "2.10", "referencePolicy": {"type": "Source"}}}]'

    • This patch command updates the zync-database-postgresql image stream to contain the 2.10 tag. You can verify that the 2.10 tag has been created with these steps:

      1. Run this command: 

        $ oc get is zync-database-postgresql
      2. Check that the Tags column shows the 2.10 tag.

  2. Patch the zync-database ImageChange trigger:

    1. Remove the old 2.9 trigger: 

      $ oc set triggers dc/zync-database --from-image=zync-database-postgresql:2.9 --containers=postgresql --remove

    2. Add the new version-specific trigger: 

      $ oc set triggers dc/zync-database --from-image=zync-database-postgresql:2.10 --containers=postgresql

      In case there are new updates on the image, this patch might also trigger a redeployment of the zync-database DeploymentConfig. If this happens, wait until the new pods are redeployed and ready, and the old pods are terminated.

2.2.3.7. Additional image changes
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If one or more of the following DeploymentConfigs are available in your 3scale 2.10 installation, click the links that apply to obtain more information on how to proceed:

backend-redis DeploymentConfig

If the backend-redis DeploymentConfig exists in your current 3scale installation, patch the redis image for backend-redis:

  1. Patch the backend-redis image stream: 

    $ oc patch imagestream/backend-redis --type=json -p '[{"op": "add", "path": "/spec/tags/-", "value": {"annotations": {"openshift.io/display-name": "Backend 2.10 Redis"}, "from": { "kind": "DockerImage", "name": "registry.redhat.io/rhscl/redis-32-rhel7:3.2"}, "name": "2.10", "referencePolicy": {"type": "Source"}}}]'

    This patch updates the backend-redis image stream to contain the 2.10 tag. With the command below, you can confirm that the tag has been created if the Tags column shows 2.10: 

    $ oc get is backend-redis

  2. Patch the backend-redis ImageChange trigger:

    1. Remove the old 2.9 trigger: 

      $ oc set triggers dc/backend-redis --from-image=backend-redis:2.9 --containers=backend-redis --remove

    2. Add the new version-specific trigger: 

      $ oc set triggers dc/backend-redis --from-image=backend-redis:2.10 --containers=backend-redis

      In case there are new updates on the image, this patch might also trigger a redeployment of the backend-redis DeploymentConfig. If this happens, wait until the new pods are redeployed and ready, and the old pods are terminated.

system-redis DeploymentConfig

If the system-redis DeploymentConfig exists in your current 3scale installation, patch the redis image for system-redis.

  1. Patch the system-redis image stream: 

    $ oc patch imagestream/system-redis --type=json -p '[{"op": "add", "path": "/spec/tags/-", "value": {"annotations": {"openshift.io/display-name": "System 2.10 Redis"}, "from": { "kind": "DockerImage", "name": "registry.redhat.io/rhscl/redis-32-rhel7:3.2"}, "name": "2.10", "referencePolicy": {"type": "Source"}}}]'

    This patch updates the system-redis image stream to contain the 2.10 tag. With the command below, you can confirm that the tag has been created if the Tags column shows 2.10: 

    $ oc get is system-redis

  2. Patch the system-redis ImageChange trigger:

    1. Remove the old 2.9 trigger: 

      $ oc set triggers dc/system-redis --from-image=system-redis:2.9 --containers=system-redis --remove

    2. Add the new version-specific trigger: 

      $ oc set triggers dc/system-redis --from-image=system-redis:2.10 --containers=system-redis

      In case there are new updates on the image, this patch might also trigger a redeployment of the system-redis DeploymentConfig. If this happens, wait until the new pods are redeployed and ready, and the old pods are terminated.

system-mysql DeploymentConfig

If the system-mysql DeploymentConfig exists in your current 3scale installation, patch the MySQL image for system-mysql.

  1. Patch the system-mysql image stream: 

    $ oc patch imagestream/system-mysql --type=json -p '[{"op": "add", "path": "/spec/tags/-", "value": {"annotations": {"openshift.io/display-name": "System 2.10 MySQL"}, "from": { "kind": "DockerImage", "name": "registry.redhat.io/rhscl/mysql-57-rhel7:5.7"}, "name": "2.10", "referencePolicy": {"type": "Source"}}}]'

    This patch updates the system-mysql image stream to contain the 2.10 tag. With the command below, you can confirm that the tag has been created if the Tags column shows 2.10: 

    $ oc get is system-mysql

  2. Patch the system-mysql ImageChange trigger:

    1. Remove the old 2.9 trigger: 

      $ oc set triggers dc/system-mysql --from-image=system-mysql:2.9 --containers=system-mysql --remove

    2. Add the new version-specific trigger: 

      $ oc set triggers dc/system-mysql --from-image=system-mysql:2.10 --containers=system-mysql

      In case there are new updates on the image, this patch might also trigger a redeployment of the system-mysql DeploymentConfig. If this happens, wait until the new pods are redeployed and ready, and the old pods are terminated.

system-postgresql DeploymentConfig

If the system-postgresql DeploymentConfig exists in your current 3scale installation, patch the PostgreSQL image for system-postgresql.

  1. Patch the system-postgresql image stream: 

    $ oc patch imagestream/system-postgresql --type=json -p '[{"op": "add", "path": "/spec/tags/-", "value": {"annotations": {"openshift.io/display-name": "System 2.10 PostgreSQL"}, "from": { "kind": "DockerImage", "name": "registry.redhat.io/rhscl/postgresql-10-rhel7"}, "name": "2.10", "referencePolicy": {"type": "Source"}}}]'

    This patch updates the system-postgresql image stream to contain the 2.10 tag. With the command below, you can confirm that the tag has been created if the Tags column shows 2.10: 

    $ oc get is system-postgresql

  2. Patch the system-postgresql ImageChange trigger:

    1. Remove the old 2.9 trigger: 

      $ oc set triggers dc/system-postgresql --from-image=system-postgresql:2.9 --containers=system-postgresql --remove

    2. Add the new version-specific trigger: 

      $ oc set triggers dc/system-postgresql --from-image=system-postgresql:2.10 --containers=system-postgresql

      In case there are new updates on the image, this patch might also trigger a redeployment of the system-postgresql DeploymentConfig. If this happens, wait until the new pods are redeployed and ready, and the old pods are terminated.

2.2.3.8. Confirm image URLs
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Confirm that all the image URLs of the DeploymentConfigs contain the new image registry URLs with a hash added at the end of each URL address: 

$ THREESCALE_DC_NAMES="apicast-production apicast-staging backend-cron backend-listener backend-redis backend-worker system-app system-memcache system-mysql system-redis system-sidekiq system-sphinx zync zync-database zync-que"
for component in ${THREESCALE_DC_NAMES}; do echo -n "${component} image: " && oc get dc $component -o json | jq .spec.template.spec.containers[0].image ; done

Next step

None. After you have performed all the listed steps, 3scale upgrade from 2.9 to 2.10 in a template-based deployment is now complete.

This section explains how to upgrade Red Hat 3scale API Management when you are using a 3scale system image with an Oracle Database, in a template-based installation with OpenShift 3.11.

Prerequisites

A 3scale installation with the Oracle Database. See Setting up your 3scale system image with an Oracle Database.

To upgrade your 3scale system image with an Oracle Database in a template-based installation, perform the procedure below:

2.3.1. Upgrading 3scale with Oracle 19c
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This procedure guides you through an Oracle Database 19c update for 3scale 2.10 from an existing 3scale 2.9 installation.

IMPORTANT: Loss of connection to the database can potentially corrupt 3scale. Make a backup before proceeding to perform the upgrade. See the official Oracle Database documentation: Oracle Database Backup and Recovery User’s Guide.

Prerequisites

  • A 3scale 2.9 installation.

  • An Oracle Database 19c installation.

Procedure

  1. Clone the OpenShift Templates for 3scale 2.10 

    $ git clone --branch 3scale-2.10.0-GA https://github.com/3scale/3scale-amp-openshift-templates.git
  2. Place your Oracle Database Instant Client Package files into the 3scale-amp-openshift-templates/amp/system-oracle/oracle-client-files directory.

  3. Run the oc process command with the -f option and specify the build.yml OpenShift template: 

    $ oc process -f build.yml | oc apply -f -

  4. Run the oc new-app command with the -f option to indicate the amp.yml OpenShift template, and the -p option to specify the WILDCARD_DOMAIN parameter with the domain of your OpenShift cluster: 

    $ oc new-app -f amp.yml -p WILDCARD_DOMAIN=mydomain.com
    Note

    The following steps are optional. Use them if you remove ORACLE_SYSTEM_PASSWORD after the installation or a system upgrade.

  5. Enter the following oc patch commands, replacing SYSTEM_PASSWORD with the Oracle Database system password you set up in Preparing the Oracle Database: 

    $ oc patch dc/system-app -p '[{"op": "add", "path": "/spec/strategy/rollingParams/pre/execNewPod/env/-", "value": {"name": "ORACLE_SYSTEM_PASSWORD", "value": "SYSTEM_PASSWORD"}}]' --type=json

$ oc patch dc/system-app -p '{"spec": {"strategy": {"rollingParams": {"post":{"execNewPod": {"env": [{"name": "ORACLE_SYSTEM_PASSWORD", "value": "SYSTEM_PASSWORD"}]}}}}}}'

  6. Enter the following command, replacing DATABASE_URL to point to your Oracle Database, specified in Preparing the Oracle Database: 

    $ oc patch secret/system-database -p '{"stringData": {"URL": "DATABASE_URL"}}'

  7. Enter the oc start-build command to build the new system image: 

    $ oc start-build 3scale-amp-system-oracle --from-dir=.

  8. Wait until the build completes. To see the state of the build, run the following command: 

    $ oc get build <build-name> -o jsonpath="{.status.phase}"
    1. Wait until the build is in a Complete state.

  9. Once you have set up your 3scale system image with your Oracle Database, remove ORACLE_SYSTEM_PASSWORD from the system-app DeploymentConfig. It is not necessary again until you upgrade to a new version of 3scale. 

    $ oc set env dc/system-app ORACLE_SYSTEM_PASSWORD-

Additional resources

For more information about 3scale and Oracle Database support, see Red Hat 3scale API Management Supported Configurations.

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