diff --git a/prepare-vms/lib/infra/aws.sh b/prepare-vms/lib/infra/aws.sh
index cb5f8fd0..f7721003 100644
--- a/prepare-vms/lib/infra/aws.sh
+++ b/prepare-vms/lib/infra/aws.sh
@@ -31,6 +31,7 @@ infra_start() {
         die "I could not find which AMI to use in this region. Try another region?"
     fi
     AWS_KEY_NAME=$(make_key_name)
+    AWS_INSTANCE_TYPE=${AWS_INSTANCE_TYPE-t3a.medium}
 
     sep "Starting instances"
     info "         Count: $COUNT"
@@ -38,10 +39,11 @@ infra_start() {
     info "     Token/tag: $TAG"
     info "           AMI: $AMI"
     info "      Key name: $AWS_KEY_NAME"
+    info " Instance type: $AWS_INSTANCE_TYPE"
     result=$(aws ec2 run-instances \
         --key-name $AWS_KEY_NAME \
         --count $COUNT \
-        --instance-type ${AWS_INSTANCE_TYPE-t2.medium} \
+        --instance-type $AWS_INSTANCE_TYPE \
         --client-token $TAG \
         --block-device-mapping 'DeviceName=/dev/sda1,Ebs={VolumeSize=20}' \
         --image-id $AMI)
@@ -97,7 +99,7 @@ infra_disableaddrchecks() {
 }
 
 wait_until_tag_is_running() {
-    max_retry=50
+    max_retry=100
     i=0
     done_count=0
     while [[ $done_count -lt $COUNT ]]; do
diff --git a/prepare-vms/setup-admin-clusters.sh b/prepare-vms/setup-admin-clusters.sh
index a4719d7a..75717e52 100755
--- a/prepare-vms/setup-admin-clusters.sh
+++ b/prepare-vms/setup-admin-clusters.sh
@@ -30,9 +30,9 @@ TAG=$PREFIX-$SETTINGS
 	--settings settings/$SETTINGS.yaml \
 	--count $((3*$STUDENTS))
 
+./workshopctl disableaddrchecks $TAG
 ./workshopctl deploy $TAG
 ./workshopctl kubebins $TAG
-./workshopctl disableaddrchecks $TAG
 ./workshopctl cards $TAG
 
 SETTINGS=admin-kuberouter
@@ -43,11 +43,15 @@ TAG=$PREFIX-$SETTINGS
 	--settings settings/$SETTINGS.yaml \
 	--count $((3*$STUDENTS))
 
+./workshopctl disableaddrchecks $TAG
 ./workshopctl deploy $TAG
 ./workshopctl kubebins $TAG
-./workshopctl disableaddrchecks $TAG
 ./workshopctl cards $TAG
 
+#INFRA=infra/aws-us-west-1
+
+export AWS_INSTANCE_TYPE=t3a.medium
+
 SETTINGS=admin-test
 TAG=$PREFIX-$SETTINGS
 ./workshopctl start \
@@ -59,3 +63,4 @@ TAG=$PREFIX-$SETTINGS
 ./workshopctl deploy $TAG
 ./workshopctl kube $TAG 1.13.5
 ./workshopctl cards $TAG
+
diff --git a/slides/index.yaml b/slides/index.yaml
index 668fdbe2..3a9b8517 100644
--- a/slides/index.yaml
+++ b/slides/index.yaml
@@ -1,3 +1,11 @@
+- date: [2019-11-04, 2019-11-05]
+  country: de
+  city: Berlin
+  event: Velocity
+  speaker: jpetazzo
+  title: Deploying and scaling applications with Kubernetes
+  attend: https://conferences.oreilly.com/velocity/vl-eu/public/schedule/detail/79109
+
 - date: 2019-11-13
   country: fr
   city: Marseille
diff --git a/slides/k8s/versions-k8s.md b/slides/k8s/versions-k8s.md
index 937ccb02..b12c45af 100644
--- a/slides/k8s/versions-k8s.md
+++ b/slides/k8s/versions-k8s.md
@@ -1,6 +1,6 @@
 ## Versions installed
 
-- Kubernetes 1.14.2
+- Kubernetes 1.15.0
 - Docker Engine 18.09.6
 - Docker Compose 1.21.1
 
@@ -23,7 +23,7 @@ class: extra-details
 
 ## Kubernetes and Docker compatibility
 
-- Kubernetes 1.14 validates Docker Engine versions [up to 18.09](https://github.com/kubernetes/kubernetes/blob/master/CHANGELOG-1.14.md#external-dependencies)
+- Kubernetes 1.15 validates Docker Engine versions [up to 18.09](https://github.com/kubernetes/kubernetes/blob/master/CHANGELOG-1.15.md#dependencies)
   <br/>
   (the latest version when Kubernetes 1.14 was released)