Upload cfn-hup log to CloudWatch

cfn-hup log is useful when debugging cluster update failures. Since aws#2614, all nodes rely on cfn-hup, making have the log on CloudWatch important.

Signed-off-by: Hanwen <[email protected]>

cookbooks/aws-parallelcluster-environment/files/cloudwatch/cloudwatch_agent_config.json

@@ -64,6 +64,23 @@
       ],
       "feature_conditions": []
     },
+    {
+      "timestamp_format_key": "default",
+      "file_path": "/var/log/cfn-hup.log",
+      "log_stream_name": "cfn-hup",
+      "schedulers": [
+        "awsbatch",
+        "slurm"
+      ],
+      "platforms": {{ default_platforms | tojson}},
+      "node_roles": [
+        "HeadNode",
+        "ComputeFleet",
+        "LoginNode",
+        "ExternalSlurmDbd"
+      ],
+      "feature_conditions": []
+    },
     {
       "timestamp_format_key": "default",
       "file_path": "/var/log/chef-client.log",