Document using AWS JDBC Wrapper in HA guide

Closes #27211

Signed-off-by: Michal Hajas <mhajas@redhat.com>
Signed-off-by: Alexander Schwartz <aschwart@redhat.com>
Co-authored-by: Alexander Schwartz <aschwart@redhat.com>
This commit is contained in:
Michal Hajas 2024-02-26 13:15:04 +01:00 committed by GitHub
parent 03f6cda85a
commit eadd1c45c4
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5 changed files with 59 additions and 22 deletions

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@ -54,7 +54,7 @@ include::partials/aurora/aurora-verify-peering-connections.adoc[]
Now that an Aurora database has been established and linked with all of your ROSA clusters, the next step is to deploy {project_name} as described in the <@links.ha id="deploy-keycloak-kubernetes" /> {section} with the JDBC url configured to use the Aurora database writer endpoint.
To do this, create a `{project_name}` CR with the following adjustments:
. Update `spec.db.url` to be `jdbc:postgresql://$HOST:5432/keycloak` where `$HOST` is the
. Update `spec.db.url` to be `jdbc:aws-wrapper:postgresql://$HOST:5432/keycloak` where `$HOST` is the
<<aurora-writer-url, Aurora writer endpoint URL>>.
. Ensure that the Secrets referenced by `spec.db.usernameSecret` and `spec.db.passwordSecret` contain usernames and passwords defined when creating Aurora.

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@ -22,6 +22,10 @@ Use it together with the other building blocks outlined in the <@links.ha id="bb
. Install the {project_name} Operator as described in the <@links.operator id="installation" /> {section}.
. Deploy Aurora AWS as described in the <@links.ha id="deploy-aurora-multi-az" /> {section}.
. Build a custom {project_name} image which is link:{links_server_db_url}#preparing-keycloak-for-amazon-aurora-postgresql[prepared for usage with the Amazon Aurora PostgreSQL database].
. Deploy the {project_name} CR with the following values with the resource requests and limits calculated in the first step:
+
[source,yaml]
@ -32,11 +36,13 @@ include::examples/generated/keycloak.yaml[tag=keycloak]
Adjust this number to meet the needs of your system.
As most requests will not touch the database due to the {project_name} embedded cache, this change can server several hundreds of requests per second.
See the <@links.ha id="concepts-database-connections" /> {section} for details.
<2> Enable additional features for multi-site support like the loadbalancer probe `/lb-check`.
<3> To be able to analyze the system under load, enable the metrics endpoint.
<2> Specify the URL to your custom {project_name} image. If your image is optimized, set the `startOptimized` flag to `true.
<3> Enable additional features for multi-site support like the loadbalancer probe `/lb-check`.
<4> XA transactions are not supported by the https://github.com/awslabs/aws-advanced-jdbc-wrapper/releases/[Amazon Web Services JDBC Driver].
<5> To be able to analyze the system under load, enable the metrics endpoint.
The disadvantage of the setting is that the metrics will be available at the external {project_name} endpoint, so you must add a filter so that the endpoint is not available from the outside.
Use a reverse proxy in front of {project_name} to filter out those URLs.
<4> The default setting for the internal JGroup thread pools is 200 threads maximum.
<6> The default setting for the internal JGroup thread pools is 200 threads maximum.
The number of all {project_name} threads in the StatefulSet should not exceed the number of JGroup threads to avoid a JGroup thread pool exhaustion which could stall {project_name} request processing.
You might consider limiting the number of {project_name} threads further because multiple concurrent threads will lead to throttling by Kubernetes once the requested CPU limit is reached.
See the <@links.ha id="concepts-threads" /> {section} for details.

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@ -720,7 +720,7 @@ metadata:
spec:
# end::keycloak-ispn[]
hostname:
hostname: keycloak-keycloak.minikube.nip.io
hostname: <KEYCLOAK_URL_HERE>
resources:
requests:
memory: "1024M"
@ -728,7 +728,7 @@ spec:
memory: "1024M"
db:
vendor: postgres
url: jdbc:postgresql://postgres:5432/keycloak
url: jdbc:aws-wrapper:postgresql://<AWS_AURORA_URL_HERE>:5432/keycloak
poolMinSize: 15 # <1>
poolInitialSize: 15
poolMaxSize: 15
@ -738,28 +738,31 @@ spec:
passwordSecret:
name: keycloak-db-secret
key: password
image: <KEYCLOAK_IMAGE_HERE> # <2>
startOptimized: false # <2>
features:
enabled:
- multi-site # <2>
- multi-site # <3>
# tag::keycloak-ispn[]
cache:
configMapFile:
name: kcb-infinispan-cache-config # <1>
key: kcb-infinispan-cache-remote-store-config.xml # <1>
# end::keycloak-ispn[]
transaction:
xaEnabled: false # <4>
# tag::keycloak-ispn[]
additionalOptions:
# end::keycloak-ispn[]
# tag::keycloak-queue-size[]
- name: http-max-queued-requests
value: "1000"
# end::keycloak-queue-size[]
- name: log-console-output
value: json
- name: metrics-enabled # <3>
- name: metrics-enabled # <5>
value: 'true'
- name: http-pool-max-threads # <4>
- name: http-pool-max-threads # <6>
value: "200"
# tag::keycloak-ispn[]
- name: remote-store-host # <2>
@ -777,6 +780,8 @@ spec:
- name: spi-connections-infinispan-quarkus-site-name # <4>
value: keycloak
# end::keycloak-ispn[]
- name: db-driver
value: software.amazon.jdbc.Driver
http:
tlsSecret: keycloak-tls-secret
instances: 1
@ -785,7 +790,7 @@ spec:
podTemplate:
metadata:
annotations:
checksum/config: 299939d6a4cb95660bea957f7baeade00c9a27c83d97497645393afe991b752c-4832924b47210161956e3b1718daf07ff52d801545186a76c391485eaf1897d3--56f92cd9012613402e2a7a61aded0f218d077b8c6345b22922ca7bf1a5c64984-v1.27.0
checksum/config: 2cae63c85a3485c135aebe1472971dd056b1dda42fb54ef2f891bc521e31fc1a-4832924b47210161956e3b1718daf07ff52d801545186a76c391485eaf1897d3-<KEYCLOAK_IMAGE_HERE>-56f92cd9012613402e2a7a61aded0f218d077b8c6345b22922ca7bf1a5c64984-v1.27.0
spec:
containers:
- env:
@ -805,9 +810,19 @@ spec:
- name: JAVA_OPTS_APPEND # <5>
value: ""
ports:
# end::keycloak[]
# readinessProbe:
# exec:
# command:
# - 'true'
# livenessProbe:
# exec:
# command:
# - 'true'
volumeMounts:
- name: keycloak-providers
mountPath: /opt/keycloak/providers
mountPath: /opt/keycloak/providers/keycloak-benchmark-dataset-0.12-SNAPSHOT.jar
subPath: keycloak-benchmark-dataset-0.12-SNAPSHOT.jar
readOnly: true
volumes:
- name: keycloak-providers

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@ -414,7 +414,7 @@ metadata:
spec:
# end::keycloak-ispn[]
hostname:
hostname: keycloak-keycloak.minikube.nip.io
hostname: <KEYCLOAK_URL_HERE>
resources:
requests:
cpu: "2"
@ -424,7 +424,7 @@ spec:
memory: "2250M"
db:
vendor: postgres
url: jdbc:postgresql://postgres:5432/keycloak
url: jdbc:aws-wrapper:postgresql://<AWS_AURORA_URL_HERE>:5432/keycloak
poolMinSize: 30 # <1>
poolInitialSize: 30
poolMaxSize: 30
@ -434,23 +434,28 @@ spec:
passwordSecret:
name: keycloak-db-secret
key: password
image: <KEYCLOAK_IMAGE_HERE> # <2>
startOptimized: false # <2>
features:
enabled:
- multi-site # <2>
- multi-site # <3>
transaction:
xaEnabled: false # <4>
# tag::keycloak-ispn[]
additionalOptions:
# end::keycloak-ispn[]
# tag::keycloak-queue-size[]
- name: http-max-queued-requests
value: "1000"
# end::keycloak-queue-size[]
- name: log-console-output
value: json
- name: metrics-enabled # <3>
- name: metrics-enabled # <5>
value: 'true'
- name: http-pool-max-threads # <4>
- name: http-pool-max-threads # <6>
value: "66"
- name: db-driver
value: software.amazon.jdbc.Driver
http:
tlsSecret: keycloak-tls-secret
instances: 3
@ -459,7 +464,7 @@ spec:
podTemplate:
metadata:
annotations:
checksum/config: 299939d6a4cb95660bea957f7baeade00c9a27c83d97497645393afe991b752c-34c125a6d541ad11d915b6d4f128a9281329070f67d06de917c9c3201e9326c1--01ba4719c80b6fe911b091a7c05124b64eeece964e09c058ef8f9805daca546b-v1.27.0
checksum/config: 2cae63c85a3485c135aebe1472971dd056b1dda42fb54ef2f891bc521e31fc1a-34c125a6d541ad11d915b6d4f128a9281329070f67d06de917c9c3201e9326c1-<KEYCLOAK_IMAGE_HERE>-01ba4719c80b6fe911b091a7c05124b64eeece964e09c058ef8f9805daca546b-v1.27.0
spec:
containers:
- env:
@ -479,9 +484,19 @@ spec:
- name: JAVA_OPTS_APPEND # <5>
value: ""
ports:
# end::keycloak[]
# readinessProbe:
# exec:
# command:
# - 'true'
# livenessProbe:
# exec:
# command:
# - 'true'
volumeMounts:
- name: keycloak-providers
mountPath: /opt/keycloak/providers
mountPath: /opt/keycloak/providers/keycloak-benchmark-dataset-0.12-SNAPSHOT.jar
subPath: keycloak-benchmark-dataset-0.12-SNAPSHOT.jar
readOnly: true
volumes:
- name: keycloak-providers

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@ -228,6 +228,7 @@ show server_encoding;
create database keycloak with encoding 'UTF8';
----
[[preparing-keycloak-for-amazon-aurora-postgresql]]
== Preparing for Amazon Aurora PostgreSQL
When using Amazon Aurora PostgreSQL, the https://github.com/awslabs/aws-advanced-jdbc-wrapper[Amazon Web Services JDBC Driver] offers additional features like transfer of database connections when a writer instance changes in a Multi-AZ setup.
@ -244,7 +245,7 @@ A minimal Dockerfile to build an image which can be used with the {project_name}
[source,dockerfile,subs="attributes+"]
----
FROM quay.io/keycloak/keycloak:{containerlabel}
ADD --chown=keycloak:keycloak https://github.com/awslabs/aws-advanced-jdbc-wrapper/releases/download/${properties["aws-jdbc-wrapper.version"]}/aws-advanced-jdbc-wrapper-${properties["aws-jdbc-wrapper.version"]}.jar /opt/keycloak/providers/aws-advanced-jdbc-wrapper.jar
ADD --chmod=0666 https://github.com/awslabs/aws-advanced-jdbc-wrapper/releases/download/${properties["aws-jdbc-wrapper.version"]}/aws-advanced-jdbc-wrapper-${properties["aws-jdbc-wrapper.version"]}.jar /opt/keycloak/providers/aws-advanced-jdbc-wrapper.jar
----
+
See the <@links.server id="containers" /> {section} for details on how to build optimized images, and the <@links.operator id="customizing-keycloak" /> {section} on how to run optimized and non-optimized images with the {project_name} Operator.