From 0cdaf48c1d3419902c0d2d451fa7b1e077c399f9 Mon Sep 17 00:00:00 2001
From: Alexander Schwartz <aschwart@redhat.com>
Date: Fri, 3 May 2024 14:22:32 +0200
Subject: [PATCH] Use Graviton instances on AWS to save money using ARM (#797)

Signed-off-by: Alexander Schwartz <aschwart@redhat.com>
---
 ansible/env_example.yml                                      | 2 +-
 ansible/roles/aws_ec2/defaults/main.yml                      | 5 +++--
 benchmark/src/main/resources/gatling.conf                    | 4 +++-
 .../ROOT/pages/report/rosa-benchmark-key-results.adoc        | 2 +-
 .../modules/ROOT/pages/run/running-benchmark-ansible.adoc    | 2 +-
 provision/aws/rds/aurora_create_global_db.sh                 | 2 +-
 6 files changed, 10 insertions(+), 7 deletions(-)

diff --git a/ansible/env_example.yml b/ansible/env_example.yml
index a5535c63c..eeb199822 100644
--- a/ansible/env_example.yml
+++ b/ansible/env_example.yml
@@ -2,7 +2,7 @@
 
 # Overrides for AWS EC2. Defaults located in `roles/aws_ec2/defaults/main.yml`.
 cluster_size: 2
-instance_type: t3.small
+instance_type: t4g.small
 instance_volume_size: 30
 
 # Overrides for Keycloak Benchmark. Defaults located in `roles/benchmark/defaults/main.yml`.
diff --git a/ansible/roles/aws_ec2/defaults/main.yml b/ansible/roles/aws_ec2/defaults/main.yml
index 9639ad292..42517c4c4 100644
--- a/ansible/roles/aws_ec2/defaults/main.yml
+++ b/ansible/roles/aws_ec2/defaults/main.yml
@@ -4,9 +4,10 @@ cluster_size: 1
 
 cidr_ip: "{{ control_host_ip.stdout }}/32"
 
-ami_name: RHEL-8.8.0_HVM-20230503-x86_64-54-Hourly2-GP2
+# aws ec2 describe-images --owners self amazon --filters "Name=architecture,Values=arm64" "Name=virtualization-type,Values=hvm"  --region eu-west-1
+ami_name: RHEL-9.3.0_HVM-20231101-arm64-5-Hourly2-GP2
 
-instance_type: t3.micro
+instance_type: t4g.micro
 instance_volume_size: 20
 instance_device: /dev/sda1
 
diff --git a/benchmark/src/main/resources/gatling.conf b/benchmark/src/main/resources/gatling.conf
index 1f9ffe6fa..683d77f05 100644
--- a/benchmark/src/main/resources/gatling.conf
+++ b/benchmark/src/main/resources/gatling.conf
@@ -51,7 +51,9 @@ gatling {
     #maxThreadLocalCharBufferSize = 200000  # Netty's default is 16k
   }
   ssl {
-    #useOpenSsl = true                    # if OpenSSL should be used instead of JSSE (only the latter can be debugged with -Djavax.net.debug=ssl)
+    # Don't use OpenSSL as it is not available on Linux ARM
+    # Avoids the error message: "UnsupportedOperationException: BoringSSL is enabled in your configuration, yet it's not available for your platform linux_aarch_64."
+    useOpenSsl = false                    # if OpenSSL should be used instead of JSSE (only the latter can be debugged with -Djavax.net.debug=ssl)
     #useOpenSslFinalizers = false         # if OpenSSL contexts should be freed with Finalizer or if using RefCounted is fine
     #handshakeTimeout = 10000             # TLS handshake timeout in millis
     #useInsecureTrustManager = true       # Use an insecure TrustManager that trusts all server certificates
diff --git a/doc/benchmark/modules/ROOT/pages/report/rosa-benchmark-key-results.adoc b/doc/benchmark/modules/ROOT/pages/report/rosa-benchmark-key-results.adoc
index 61158ef76..4caf784f4 100644
--- a/doc/benchmark/modules/ROOT/pages/report/rosa-benchmark-key-results.adoc
+++ b/doc/benchmark/modules/ROOT/pages/report/rosa-benchmark-key-results.adoc
@@ -146,7 +146,7 @@ See xref:run/running-benchmark-ansible.adoc[] for details.
 [source,yaml]
 ----
 cluster_size: 5
-instance_type: t3.small
+instance_type: t4g.small
 instance_volume_size: 30
 kcb_zip: ../benchmark/target/keycloak-benchmark-0.13-SNAPSHOT.zip
 kcb_heap_size: 1G
diff --git a/doc/benchmark/modules/ROOT/pages/run/running-benchmark-ansible.adoc b/doc/benchmark/modules/ROOT/pages/run/running-benchmark-ansible.adoc
index 98bf2ff6f..6aa24ebcf 100644
--- a/doc/benchmark/modules/ROOT/pages/run/running-benchmark-ansible.adoc
+++ b/doc/benchmark/modules/ROOT/pages/run/running-benchmark-ansible.adoc
@@ -31,7 +31,7 @@ Use the file `link:{github-files}/ansible/env_example.yml[env_example.yaml]` as
 [source,yaml]
 ----
 cluster_size: 5
-instance_type: t3.small
+instance_type: t4g.small
 instance_volume_size: 30
 ----
 
diff --git a/provision/aws/rds/aurora_create_global_db.sh b/provision/aws/rds/aurora_create_global_db.sh
index 3e1726190..26aac6da1 100755
--- a/provision/aws/rds/aurora_create_global_db.sh
+++ b/provision/aws/rds/aurora_create_global_db.sh
@@ -42,7 +42,7 @@ for (( i = 0 ; i < ${#GLOBAL_REGIONS[@]} ; i++ )) ; do
   REGION=${GLOBAL_REGIONS[i]}
   export AURORA_CLUSTER=${AURORA_GLOBAL_CLUSTER}-${REGION}
   # Aurora Global DBs must use one of the memory optimized classes
-  export AURORA_INSTANCE_CLASS="db.r5.large"
+  export AURORA_INSTANCE_CLASS="db.r6g.large"
   export AURORA_REGION=${REGION}
 
   if [ "${REGION}" != "${PRIMARY_REGION}" ]; then