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>
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Michal Hajas
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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[]
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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.
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To do this, create a `{project_name}` CR with the following adjustments:
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. Update `spec.db.url` to be `jdbc:postgresql://$HOST:5432/keycloak` where `$HOST` is the
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. Update `spec.db.url` to be `jdbc:aws-wrapper:postgresql://$HOST:5432/keycloak` where `$HOST` is the
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<<aurora-writer-url, Aurora writer endpoint URL>>.
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. 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
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. Install the {project_name} Operator as described in the <@links.operator id="installation" /> {section}.
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. Deploy Aurora AWS as described in the <@links.ha id="deploy-aurora-multi-az" /> {section}.
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. 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].
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. Deploy the {project_name} CR with the following values with the resource requests and limits calculated in the first step:
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+
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[source,yaml]
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@ -32,11 +36,13 @@ include::examples/generated/keycloak.yaml[tag=keycloak]
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Adjust this number to meet the needs of your system.
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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.
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See the <@links.ha id="concepts-database-connections" /> {section} for details.
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<2> Enable additional features for multi-site support like the loadbalancer probe `/lb-check`.
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<3> To be able to analyze the system under load, enable the metrics endpoint.
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<2> Specify the URL to your custom {project_name} image. If your image is optimized, set the `startOptimized` flag to `true.
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<3> Enable additional features for multi-site support like the loadbalancer probe `/lb-check`.
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<4> XA transactions are not supported by the https://github.com/awslabs/aws-advanced-jdbc-wrapper/releases/[Amazon Web Services JDBC Driver].
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<5> To be able to analyze the system under load, enable the metrics endpoint.
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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.
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Use a reverse proxy in front of {project_name} to filter out those URLs.
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<4> The default setting for the internal JGroup thread pools is 200 threads maximum.
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<6> The default setting for the internal JGroup thread pools is 200 threads maximum.
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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.
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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.
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See the <@links.ha id="concepts-threads" /> {section} for details.
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@ -720,7 +720,7 @@ metadata:
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spec:
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# end::keycloak-ispn[]
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hostname:
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hostname: keycloak-keycloak.minikube.nip.io
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hostname: <KEYCLOAK_URL_HERE>
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resources:
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requests:
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memory: "1024M"
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@ -728,7 +728,7 @@ spec:
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memory: "1024M"
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db:
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vendor: postgres
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url: jdbc:postgresql://postgres:5432/keycloak
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url: jdbc:aws-wrapper:postgresql://<AWS_AURORA_URL_HERE>:5432/keycloak
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poolMinSize: 15 # <1>
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poolInitialSize: 15
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poolMaxSize: 15
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@ -738,28 +738,31 @@ spec:
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passwordSecret:
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name: keycloak-db-secret
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key: password
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image: <KEYCLOAK_IMAGE_HERE> # <2>
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startOptimized: false # <2>
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features:
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enabled:
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- multi-site # <2>
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- multi-site # <3>
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# tag::keycloak-ispn[]
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cache:
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configMapFile:
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name: kcb-infinispan-cache-config # <1>
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key: kcb-infinispan-cache-remote-store-config.xml # <1>
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# end::keycloak-ispn[]
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transaction:
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xaEnabled: false # <4>
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# tag::keycloak-ispn[]
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additionalOptions:
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# end::keycloak-ispn[]
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# tag::keycloak-queue-size[]
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- name: http-max-queued-requests
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value: "1000"
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# end::keycloak-queue-size[]
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- name: log-console-output
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value: json
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- name: metrics-enabled # <3>
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- name: metrics-enabled # <5>
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value: 'true'
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- name: http-pool-max-threads # <4>
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- name: http-pool-max-threads # <6>
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value: "200"
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# tag::keycloak-ispn[]
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- name: remote-store-host # <2>
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@ -776,7 +779,9 @@ spec:
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key: password
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- name: spi-connections-infinispan-quarkus-site-name # <4>
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value: keycloak
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# end::keycloak-ispn[]
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# end::keycloak-ispn[]
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- name: db-driver
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value: software.amazon.jdbc.Driver
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http:
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tlsSecret: keycloak-tls-secret
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instances: 1
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@ -785,7 +790,7 @@ spec:
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podTemplate:
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metadata:
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annotations:
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checksum/config: 299939d6a4cb95660bea957f7baeade00c9a27c83d97497645393afe991b752c-4832924b47210161956e3b1718daf07ff52d801545186a76c391485eaf1897d3--56f92cd9012613402e2a7a61aded0f218d077b8c6345b22922ca7bf1a5c64984-v1.27.0
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checksum/config: 2cae63c85a3485c135aebe1472971dd056b1dda42fb54ef2f891bc521e31fc1a-4832924b47210161956e3b1718daf07ff52d801545186a76c391485eaf1897d3-<KEYCLOAK_IMAGE_HERE>-56f92cd9012613402e2a7a61aded0f218d077b8c6345b22922ca7bf1a5c64984-v1.27.0
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spec:
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containers:
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- env:
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@ -805,9 +810,19 @@ spec:
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- name: JAVA_OPTS_APPEND # <5>
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value: ""
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ports:
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# end::keycloak[]
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# readinessProbe:
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# exec:
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# command:
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# - 'true'
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# livenessProbe:
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# exec:
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# command:
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# - 'true'
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volumeMounts:
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- name: keycloak-providers
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mountPath: /opt/keycloak/providers
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mountPath: /opt/keycloak/providers/keycloak-benchmark-dataset-0.12-SNAPSHOT.jar
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subPath: keycloak-benchmark-dataset-0.12-SNAPSHOT.jar
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readOnly: true
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volumes:
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- name: keycloak-providers
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@ -414,7 +414,7 @@ metadata:
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spec:
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# end::keycloak-ispn[]
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hostname:
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hostname: keycloak-keycloak.minikube.nip.io
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hostname: <KEYCLOAK_URL_HERE>
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resources:
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requests:
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cpu: "2"
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@ -424,7 +424,7 @@ spec:
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memory: "2250M"
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db:
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vendor: postgres
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url: jdbc:postgresql://postgres:5432/keycloak
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url: jdbc:aws-wrapper:postgresql://<AWS_AURORA_URL_HERE>:5432/keycloak
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poolMinSize: 30 # <1>
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poolInitialSize: 30
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poolMaxSize: 30
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@ -434,23 +434,28 @@ spec:
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passwordSecret:
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name: keycloak-db-secret
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key: password
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image: <KEYCLOAK_IMAGE_HERE> # <2>
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startOptimized: false # <2>
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features:
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enabled:
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- multi-site # <2>
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- multi-site # <3>
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transaction:
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xaEnabled: false # <4>
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# tag::keycloak-ispn[]
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additionalOptions:
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# end::keycloak-ispn[]
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# tag::keycloak-queue-size[]
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- name: http-max-queued-requests
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value: "1000"
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# end::keycloak-queue-size[]
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- name: log-console-output
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value: json
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- name: metrics-enabled # <3>
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- name: metrics-enabled # <5>
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value: 'true'
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- name: http-pool-max-threads # <4>
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- name: http-pool-max-threads # <6>
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value: "66"
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- name: db-driver
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value: software.amazon.jdbc.Driver
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http:
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tlsSecret: keycloak-tls-secret
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instances: 3
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@ -459,7 +464,7 @@ spec:
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podTemplate:
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metadata:
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annotations:
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checksum/config: 299939d6a4cb95660bea957f7baeade00c9a27c83d97497645393afe991b752c-34c125a6d541ad11d915b6d4f128a9281329070f67d06de917c9c3201e9326c1--01ba4719c80b6fe911b091a7c05124b64eeece964e09c058ef8f9805daca546b-v1.27.0
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checksum/config: 2cae63c85a3485c135aebe1472971dd056b1dda42fb54ef2f891bc521e31fc1a-34c125a6d541ad11d915b6d4f128a9281329070f67d06de917c9c3201e9326c1-<KEYCLOAK_IMAGE_HERE>-01ba4719c80b6fe911b091a7c05124b64eeece964e09c058ef8f9805daca546b-v1.27.0
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spec:
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containers:
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- env:
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@ -479,9 +484,19 @@ spec:
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- name: JAVA_OPTS_APPEND # <5>
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value: ""
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ports:
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# end::keycloak[]
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# readinessProbe:
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# exec:
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# command:
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# - 'true'
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# livenessProbe:
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# exec:
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# command:
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# - 'true'
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volumeMounts:
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- name: keycloak-providers
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mountPath: /opt/keycloak/providers
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mountPath: /opt/keycloak/providers/keycloak-benchmark-dataset-0.12-SNAPSHOT.jar
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subPath: keycloak-benchmark-dataset-0.12-SNAPSHOT.jar
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readOnly: true
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volumes:
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- name: keycloak-providers
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@ -228,6 +228,7 @@ show server_encoding;
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create database keycloak with encoding 'UTF8';
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----
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[[preparing-keycloak-for-amazon-aurora-postgresql]]
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== Preparing for Amazon Aurora PostgreSQL
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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.
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@ -244,7 +245,7 @@ A minimal Dockerfile to build an image which can be used with the {project_name}
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[source,dockerfile,subs="attributes+"]
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----
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FROM quay.io/keycloak/keycloak:{containerlabel}
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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
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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
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----
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+
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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.
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