[keycloak-user] Database upgrade

[Nalyvayko, Peter]

Nice, thanks Tom, appreciate it, I'll give it a try.
Sincerely,
Peter
________________________________________
From: Thomas Darimont [thomas.darimont at googlemail.com]
Sent: Thursday, August 18, 2016 4:30 PM
To: Nalyvayko, Peter
Cc: keycloak-user
Subject: Re: [keycloak-user] Database upgrade

Hello Peter,

if you're already on 2.0.0 then you could do the following. ..
Download the latest keycloak-2.1.0.Final relase and extract it.

Then just run the liquibase scripts within the keycloak-model-jpa-2.1.0.Final.jar from the classpath as shown below.
This works because since version 1.9.1.Final until now (2.2.0..) the liquibase scripts
only contain declarative changes (that have no deps on Keycloak classes), however
earlier versions run custom migration code that requires a bunch of Keycloak application classes on the classpath.

So this approach (currently) works but will require additional classpath / infrastructure changes
once keycloak needs to perform some programmatic migration operations in future releases.

In my test I used a database with very little data so I'd recommend that you try this
on a database backup first :-)

The following example is based on a database created by Keycloak version 1.9.1.Final that
I want to upgrade to 2.1.0.Final.

My current directory:
tom at euler ~/dev/playgroud/keycloak/keycloak-2.1.0.Final

# Configure PG JDBC Driver jar
POSTGRES_JDBC_LIB=~/.m2/repository/org/postgresql/postgresql/9.4.1209.jre7/postgresql-9.4.1209.jre7.jar
# Keycloak Deps
KEYCLOAK_DEPS_LIB=modules/system/layers/base/org/jboss/logging/main/jboss-logging-3.3.0.Final.jar
# Keycloak JPA Model jar contains the liquibase migration scripts
KEYCLOAK_JPA_MODEL_LIB=modules/system/layers/keycloak/org/keycloak/keycloak-model-jpa/main/keycloak-model-jpa-2.1.0.Final.jar

# Manually execute the database update
java -jar modules/system/layers/keycloak/org/liquibase/main/liquibase-core-3.4.1.jar \
     --driver=org.postgresql.Driver \
     --classpath="$POSTGRES_JDBC_LIB:$KEYCLOAK_DEPS_LIB:$KEYCLOAK_JPA_MODEL_LIB" \
     --changeLogFile=META-INF/jpa-changelog-master.xml \
     --url="jdbc:postgresql://localhost:5432/keycloak_migration_test" \
     --username=keycloak \
     --password=keycloak \
     --logLevel=debug \
     update

The migration logs were actually quite big so I pasted them here for reference:
https://gist.github.com/thomasdarimont/4d24215681b395361abd6736fa8ce36c

And yes, I could successfully start Keycloak 2.1.0 on the migrated database.

With that said, I agree with you that it would be a good idea to provide a script that only performs the database
migration to ease testing of new releases.


Cheers,
Thomas

2016-08-18 20:54 GMT+02:00 Nalyvayko, Peter <pnalyvayko at agi.com<mailto:pnalyvayko at agi.com>>:
Tom, thanks for the link. My use case: the dev team uses keycloak final 2.0.0 release distribution in their development environment.
To start keycloak they run 'standalone.bat' as a part of their dev test bootstrap (not 'mvn -f ...-Pkeycloak-server) . Sometimes there is a need to run the keycloak database init/upgrade without actually starting the keycloak server,  so it would be great to be able to achieve that by specifying, for example, an extra parameter to'standalone.bat', i.e:

$ standalone.bat --init-database-only

The above command would execute the database initialization/upgrade and immediately terminate. Does it make sense?

The instructions in the link, I believe, were written for a slightly different use case.

________________________________________
From: Thomas Darimont [thomas.darimont at googlemail.com<mailto:thomas.darimont at googlemail.com>]
Sent: Thursday, August 18, 2016 2:15 PM
To: Nalyvayko, Peter
Cc: keycloak-user
Subject: Re: [keycloak-user] Database upgrade

Hello Peter,

https://github.com/keycloak/keycloak/blob/master/misc/UpdatingDatabaseSchema.md

Cheers,
Thomas

2016-08-18 19:21 GMT+02:00 Nalyvayko, Peter <pnalyvayko at agi.com<mailto:pnalyvayko at agi.com><mailto:pnalyvayko at agi.com<mailto:pnalyvayko at agi.com>>>:
Hi,
Is there an existing way to execute the keycloak database upgrade without actually starting the keycloak server?
Thanks!
--Peter
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