Update default Amazon Linux 2 AMI

Author: nchammas

README.md

@@ -35,7 +35,7 @@ flintrock launch test-cluster \
     --spark-version 2.4.0 \
     --ec2-key-name key_name \
     --ec2-identity-file /path/to/key.pem \
-    --ec2-ami ami-7105540e \
+    --ec2-ami ami-0b8d0d6ac70e5750c \
     --ec2-user ec2-user
 ```
 
@@ -265,7 +265,7 @@ providers:
     identity-file: /path/to/.ssh/key.pem
     instance-type: m3.medium
     region: us-east-1
-    ami: ami-7105540e
+    ami: ami-0b8d0d6ac70e5750c
     user: ec2-user
 ```
 

flintrock/config.yaml.template

@@ -26,9 +26,9 @@ providers:
     instance-type: m3.medium
     region: us-east-1
     # availability-zone: <name>
-    ami: ami-7105540e   # Amazon Linux 2, us-east-1
+    ami: ami-0b8d0d6ac70e5750c  # Amazon Linux 2, us-east-1
     user: ec2-user
-    # ami: ami-61bbf104   # CentOS 7, us-east-1
+    # ami: ami-61bbf104  # CentOS 7, us-east-1
     # user: centos
     # spot-price: <price>
     # vpc-id: <id>