devgrok · July 2, 2018 11:32 · Jul 2, 2018
diff --git a/cloud-init-cloudwatch-agent b/cloud-init-cloudwatch-agent
@@ -0,0 +1,102 @@
+Content-Type: multipart/mixed; boundary="==BOUNDARY=="
+MIME-Version: 1.0
+
+--==BOUNDARY==
+MIME-Version: 1.0
+Content-Type: text/cloud-boothook; charset="us-ascii"
+
+#!/bin/bash +x
+# optionally set ECS agent options (increase base container size)
+cloud-init-per once docker_options echo 'OPTIONS="${OPTIONS} --storage-opt dm.basesize=100G"' >> /etc/sysconfig/docker
+
+--==BOUNDARY==
+MIME-Version: 1.0
+Content-Type: text/x-shellscript; charset="us-ascii"
+#!/bin/bash
+yum install -y unzip jq
+mkdir -p /tmp/cw-agent-install
+cd /tmp/cw-agent-install
+curl -O https://s3.amazonaws.com/amazoncloudwatch-agent/linux/amd64/latest/AmazonCloudWatchAgent.zip
+unzip AmazonCloudWatchAgent.zip
+./install.sh
+rm -rf /tmp/cw-agent-install
+
+# Inject the CloudWatch Logs configuration file contents
+cat > /opt/aws/amazon-cloudwatch-agent/etc/config.json <<- EOF
+{
+  "logs": {
+    "logs_collected": {
+      "files": {
+        "collect_list": [
+          {
+            "file_path": "/var/log/dmesg",
+            "log_group_name": "ecs/var/log/dmesg",
+            "timezone": "UTC"
+          },
+          {
+            "file_path": "/var/log/messages",
+            "log_group_name": "ecs/var/log/messages",
+            "timezone": "UTC",
+            "timestamp_format": "%b %d %H:%M:%S"
+          },
+          {
+            "file_path": "/var/log/docker",
+            "log_group_name": "ecs/var/log/docker",
+            "timezone": "UTC",
+            "timestamp_format": "%Y-%m-%dT%H:%M:%S.%f"
+          },
+          {
+            "file_path": "/var/log/ecs/ecs-init.log",
+            "log_group_name": "ecs/var/log/ecs/ecs-init.log",
+            "timezone": "UTC",
+            "timestamp_format": "%Y-%m-%dT%H:%M:%SZ"
+          },
+          {
+            "file_path": "/var/log/ecs/ecs-agent.log.*",
+            "log_group_name": "ecs/var/log/ecs/ecs-agent.log",
+            "timezone": "UTC",
+            "timestamp_format": "%Y-%m-%dT%H:%M:%SZ"
+          },
+          {
+            "file_path": "/var/log/ecs/audit.log.*",
+            "log_group_name": "ecs/var/log/ecs/audit.log",
+            "timezone": "UTC",
+            "timestamp_format": "%Y-%m-%dT%H:%M:%SZ"
+          }
+        ]
+      }
+    },
+    "log_stream_name": "{cluster}/{container_instance_id}"
+  }
+}
+EOF
+
+--==BOUNDARY==
+MIME-Version: 1.0
+Content-Type: text/upstart-job; charset="us-ascii"
+
+#upstart-job
+description "Configure and start CloudWatch Logs agent on Amazon ECS container instance"
+author "Amazon Web Services"
+start on started ecs
+
+script
+ exec 2>>/var/log/ecs/cloudwatch-logs-start.log
+ set -x
+
+ until curl -s http://localhost:51678/v1/metadata
+ do
+  sleep 1 
+ done
+
+ # Grab the cluster and container instance ARN from instance metadata
+ cluster=$(curl -s http://localhost:51678/v1/metadata | jq -r '. | .Cluster')
+ container_instance_id=$(curl -s http://localhost:51678/v1/metadata | jq -r '. | .ContainerInstanceArn' | awk -F/ '{print $2}' )
+
+ # Replace the cluster name and container instance ID placeholders with the actual values
+ sed -i -e "s/{cluster}/$cluster/g" /opt/aws/amazon-cloudwatch-agent/etc/config.json
+ sed -i -e "s/{container_instance_id}/$container_instance_id/g" /opt/aws/amazon-cloudwatch-agent/etc/config.json
+
+ /opt/aws/amazon-cloudwatch-agent/bin/amazon-cloudwatch-agent-ctl -a fetch-config -m ec2 -c file:/opt/aws/amazon-cloudwatch-agent/etc/config.json -s
+end script
+--==BOUNDARY==--