X-Git-Url: https://git.arvados.org/arvados.git/blobdiff_plain/0eb72b526bf8bbb011551ecf019f604e17a534f1..8a41cc44ee196c9347785baa476a370abe77c75c:/services/nodemanager/doc/ec2.example.cfg

diff --git a/services/nodemanager/doc/ec2.example.cfg b/services/nodemanager/doc/ec2.example.cfg
index e52e927290..3bc905b085 100644
--- a/services/nodemanager/doc/ec2.example.cfg
+++ b/services/nodemanager/doc/ec2.example.cfg
@@ -65,6 +65,15 @@ boot_fail_after = 1800
 # an Arvados node that hasn't been updated for this long.
 node_stale_after = 14400
 
+# Number of consecutive times a node must report as "idle" before it
+# will be considered eligible for shutdown.  Node status is checked
+# each poll period, and node can go idle at any point during a poll
+# period (meaning a node could be reported as idle that has only been
+# idle for 1 second).  With a 60 second poll period, three consecutive
+# status updates of "idle" suggests the node has been idle at least
+# 121 seconds.
+consecutive_idle_count = 3
+
 # Scaling factor to be applied to nodes' available RAM size. Usually there's a
 # variable discrepancy between the advertised RAM value on cloud nodes and the
 # actual amount available.
@@ -153,6 +162,11 @@ subnet_id = idstring
 # compute node.
 security_groups = idstring1, idstring2
 
+# Apply an Instance Profile ARN to the newly created compute nodes
+# For more info, see:
+# https://aws.amazon.com/premiumsupport/knowledge-center/iam-policy-restrict-vpc/
+# ex_iamprofile = arn:aws:iam::ACCOUNTNUMBER:instance-profile/ROLENAME
+
 
 # You can define any number of Size sections to list EC2 sizes you're
 # willing to use.  The Node Manager should boot the cheapest size(s) that
@@ -162,15 +176,30 @@ security_groups = idstring1, idstring2
 # size class (since libcloud does not provide any consistent API for exposing
 # this setting).
 # You may also want to define the amount of scratch space (expressed
-# in GB) for Crunch jobs.  You can also override Amazon's provided
+# in MB) for Crunch jobs.  You can also override Amazon's provided
 # data fields (such as price per hour) by setting them here.
+#
+# Additionally, you can ask for a preemptible instance (AWS's spot instance)
+# by adding the appropriate boolean configuration flag. If you want to have
+# both spot & reserved versions of the same size, you can do so by renaming
+# the Size section and specifying the instance type inside it.
 
+# 100 GB scratch space
 [Size m4.large]
 cores = 2
 price = 0.126
-scratch = 100
+scratch = 100000
+
+# 10 GB scratch space
+[Size m4.large.spot]
+instance_type = m4.large
+preemptible = true
+cores = 2
+price = 0.126
+scratch = 10000
 
+# 200 GB scratch space
 [Size m4.xlarge]
 cores = 4
 price = 0.252
-scratch = 100
+scratch = 200000