Keycloak Export in Kubernetes

keycloak-export-import-k8s.md

Perform Keycloak Export and Import on Kubernetes

• Setup Keycloak in non-HA mode (replica 1)
• Disable UserFederation
• You might have to increase the resource limits to avoid that pod beeing killed by memory or CPU limits

See Keycloak Documentation for more details.

Export

Trigger export (called from pod keycloak-0):

kubectl exec -it keycloak-0 bash

/opt/jboss/keycloak/bin/standalone.sh -Dkeycloak.migration.action=export -Dkeycloak.migration.provider=dir -Dkeycloak.migration.dir=/opt/jboss/keycloak-export -Dkeycloak.migration.usersExportStrategy=DIFFERENT_FILES -Dkeycloak.migration.usersPerFile=100 -Djboss.http.port=8888 -Djboss.https.port=9999 -Djboss.management.http.port=7777 -Djboss.management.https.port=7776 

After succesful export keylcoak finish startup.

WFLYSRV0025: Keycloak 4.5.0.Final (WildFly Core 5.0.0.Final) started in 86826ms

Shutdown by pressing Ctrl+C

Copy files (on local machine):

mkdir kc-export
cd kc-export
kubectl cp keycloak-0:/opt/jboss/keycloak-export .

See: https://stackoverflow.com/a/47198081/7290164

Import

Copy files from local machine to pod:

cd kc-export
kubectl cp . keycloak-0:/opt/jboss/keycloak-export

Connect to pod and trigger import for a specific realm:

kubectl exec -it keycloak-0 bash

/opt/jboss/keycloak/bin/standalone.sh -Dkeycloak.migration.action=import -Dkeycloak.migration.provider=dir -Dkeycloak.migration.dir=/opt/jboss/keycloak-export -Dkeycloak.migration.usersExportStrategy=DIFFERENT_FILES -Dkeycloak.migration.usersPerFile=100 -Djboss.http.port=8888 -Djboss.https.port=9999 -Djboss.management.http.port=7777 -Djboss.management.https.port=7776 -Dkeycloak.migration.realmName=<my-realm-name>

After succesful import keylcoak finish startup.

WFLYSRV0025: Keycloak 4.5.0.Final (WildFly Core 5.0.0.Final) started in 86826ms

Shutdown by pressing Ctrl+C

@axdotl thanks a lot.