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Commit f1875989 by Feanil Patel
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Remove trailing newlines from the userdata and put them in the join function.

parent dcd3726a
Showing with 120 additions and 120 deletions
cloudformation_templates/edx-reference-architecture.json
...@@ -1709,127 +1709,127 @@ ...@@ -1709,127 +1709,127 @@
"PropagateAtLaunch":true "PropagateAtLaunch":true
} }
], ],
"UserData": { "Fn::Base64" : { "Fn::Join" : ["", [ "UserData": { "Fn::Base64" : { "Fn::Join" : ["\n", [
"#!/bin/bash -v\n", "#!/bin/bash -v",
"mkdir -p /opt/edx/bin\n", "mkdir -p /opt/edx/bin",
"cd /opt\n", "cd /opt",
"apt-get update\n", "apt-get update",
"apt-get install openjdk-6-jre-headless unzip -y\n", "apt-get install openjdk-6-jre-headless unzip -y",
"wget http://s3.amazonaws.com/ec2-downloads/ec2-api-tools.zip\n", "wget http://s3.amazonaws.com/ec2-downloads/ec2-api-tools.zip",
"unzip ec2-api-tools.zip\n", "unzip ec2-api-tools.zip",
"ln -sf ec2-api-tools-* ec2-api-tools\n", "ln -sf ec2-api-tools-* ec2-api-tools",
"cat <<'EOF' > /opt/edx/bin/nat_monitor.sh\n", "cat <<'EOF' > /opt/edx/bin/nat_monitor.sh",
"#!/bin/sh\n", "#!/bin/sh",
"# This script will monitor another NAT instance and take over its routes\n", "# This script will monitor another NAT instance and take over its routes",
"# if communication with the other instance fails\n", "# if communication with the other instance fails",
"\n", "",
"# NAT instance variables\n", "# NAT instance variables",
"# Other instance's IP to ping and route to grab if other node goes down\n", "# Other instance's IP to ping and route to grab if other node goes down",
"PRIMARY_NAT_ID=", { "Ref":"NATDevice" }, "\n", "PRIMARY_NAT_ID=", { "Ref":"NATDevice" }, "",
"BACKUP_NAT_ID=", { "Ref": "BackupNATDevice" }, "\n", "BACKUP_NAT_ID=", { "Ref": "BackupNATDevice" }, "",
"NAT_RT_ID=", { "Ref": "PrivateRouteTable" }, "\n", "NAT_RT_ID=", { "Ref": "PrivateRouteTable" }, "",
"\n", "",
"# Specify the EC2 region that this will be running in (e.g. https://ec2.us-east-1.amazonaws.com)\n", "# Specify the EC2 region that this will be running in (e.g. https://ec2.us-east-1.amazonaws.com)",
"EC2_URL=https://ec2.",{ "Ref": "AWS::Region" },".amazonaws.com\n", "EC2_URL=https://ec2.",{ "Ref": "AWS::Region" },".amazonaws.com",
"\n", "",
"# Health Check variables\n", "# Health Check variables",
"Num_Pings=3\n", "Num_Pings=3",
"Ping_Timeout=1\n", "Ping_Timeout=1",
"Wait_Between_Pings=2\n", "Wait_Between_Pings=2",
"Wait_for_Instance_Stop=60\n", "Wait_for_Instance_Stop=60",
"Wait_for_Instance_Start=300\n", "Wait_for_Instance_Start=300",
"\n", "",
"# leverage AWS security credentials provided by EC2 roles\n", "# leverage AWS security credentials provided by EC2 roles",
"# Setup environment for ec2 api tools\n", "# Setup environment for ec2 api tools",
"export EC2_HOME=/opt/ec2-api-tools\n", "export EC2_HOME=/opt/ec2-api-tools",
"export AWS_IAM_HOME=/opt/IAMCli\n", "export AWS_IAM_HOME=/opt/IAMCli",
"export JAVA_HOME=/usr/lib/jvm/java-6-openjdk-amd64\n", "export JAVA_HOME=/usr/lib/jvm/java-6-openjdk-amd64",
"PATH=/opt/ec2-api-tools/bin:$PATH\n", "PATH=/opt/ec2-api-tools/bin:$PATH",
"\n", "",
"# Determine the NAT instance private IP so we can ping the other NAT instance, take over\n", "# Determine the NAT instance private IP so we can ping the other NAT instance, take over",
"# its route, and reboot it. Requires EC2 DescribeInstances, ReplaceRoute, and Start/RebootInstances\n", "# its route, and reboot it. Requires EC2 DescribeInstances, ReplaceRoute, and Start/RebootInstances",
"# permissions. The following example EC2 Roles policy will authorize these commands:\n", "# permissions. The following example EC2 Roles policy will authorize these commands:",
"# {\n", "# {",
"# \"Statement\": [\n", "# \"Statement\": [",
"# {\n", "# {",
"# \"Action\": [\n", "# \"Action\": [",
"# \"ec2:DescribeInstances\",\n", "# \"ec2:DescribeInstances\",",
"# \"ec2:CreateRoute\",\n", "# \"ec2:CreateRoute\",",
"# \"ec2:ReplaceRoute\",\n", "# \"ec2:ReplaceRoute\",",
"# \"ec2:StartInstances\",\n", "# \"ec2:StartInstances\",",
"# \"ec2:StopInstances\"\n", "# \"ec2:StopInstances\"",
"# ],\n", "# ],",
"# \"Effect\": \"Allow\",\n", "# \"Effect\": \"Allow\",",
"# \"Resource\": \"*\"\n", "# \"Resource\": \"*\"",
"# }\n", "# }",
"# ]\n", "# ]",
"# }\n", "# }",
"\n", "",
"# Get the primary NAT instance's IP\n", "# Get the primary NAT instance's IP",
"PRIMARY_NAT_IP=`/opt/ec2-api-tools/bin/ec2-describe-instances $PRIMARY_NAT_ID -U $EC2_URL | grep PRIVATEIPADDRESS -m 1 | awk '{print $2;}'`\n", "PRIMARY_NAT_IP=`/opt/ec2-api-tools/bin/ec2-describe-instances $PRIMARY_NAT_ID -U $EC2_URL | grep PRIVATEIPADDRESS -m 1 | awk '{print $2;}'`",
"BACKUP_NAT_IP=`/opt/ec2-api-tools/bin/ec2-describe-instances $BACKUP_NAT_ID -U $EC2_URL | grep PRIVATEIPADDRESS -m 1 | awk '{print $2;}'`\n", "BACKUP_NAT_IP=`/opt/ec2-api-tools/bin/ec2-describe-instances $BACKUP_NAT_ID -U $EC2_URL | grep PRIVATEIPADDRESS -m 1 | awk '{print $2;}'`",
"\n", "",
"echo `date` \"-- Starting NAT monitor\"\n", "echo `date` \"-- Starting NAT monitor\"",
"\n", "",
"while [ . ]; do\n", "while [ . ]; do",
" # Check the health of both instances.\n", " # Check the health of both instances.",
" primary_pingresult=`ping -c $Num_Pings -W $Ping_Timeout $PRIMARY_NAT_IP| grep time= | wc -l`\n", " primary_pingresult=`ping -c $Num_Pings -W $Ping_Timeout $PRIMARY_NAT_IP| grep time= | wc -l`",
"\n", "",
" if [ \"$primary_pingresult\" == \"0\" ]; then\n", " if [ \"$primary_pingresult\" == \"0\" ]; then",
" backup_pingresult=`ping -c $Num_Pings -W $Ping_Timeout $BACKUP_NAT_IP| grep time= | wc -l`\n", " backup_pingresult=`ping -c $Num_Pings -W $Ping_Timeout $BACKUP_NAT_IP| grep time= | wc -l`",
" if [ \"$backup_pingresult\" == \"0\" ]; then\n", " if [ \"$backup_pingresult\" == \"0\" ]; then",
" echo `date` \"-- Both NAT devices un reachable.\"\n", " echo `date` \"-- Both NAT devices un reachable.\"",
" #TODO: Notify alert that both NATs are down.\n", " #TODO: Notify alert that both NATs are down.",
" else #Backup nat is healthy.\n", " else #Backup nat is healthy.",
" # Set HEALTHY variables to unhealthy (0)\n", " # Set HEALTHY variables to unhealthy (0)",
" ROUTE_HEALTHY=0\n", " ROUTE_HEALTHY=0",
" NAT_HEALTHY=0\n", " NAT_HEALTHY=0",
" STOPPING_NAT=0\n", " STOPPING_NAT=0",
" while [ \"$NAT_HEALTHY\" == \"0\" ]; do\n", " while [ \"$NAT_HEALTHY\" == \"0\" ]; do",
" # Primary NAT instance is unhealthy, loop while we try to fix it\n", " # Primary NAT instance is unhealthy, loop while we try to fix it",
" if [ \"$ROUTE_HEALTHY\" == \"0\" ]; then\n", " if [ \"$ROUTE_HEALTHY\" == \"0\" ]; then",
" echo `date` \"-- NAT($PRIMARY_NAT_ID) heartbeat failed, using $BACKUP_NAT_ID for $NAT_RT_ID default route\"\n", " echo `date` \"-- NAT($PRIMARY_NAT_ID) heartbeat failed, using $BACKUP_NAT_ID for $NAT_RT_ID default route\"",
" /opt/ec2-api-tools/bin/ec2-replace-route $NAT_RT_ID -r 0.0.0.0/0 -i $BACKUP_NAT_ID -U $EC2_URL\n", " /opt/ec2-api-tools/bin/ec2-replace-route $NAT_RT_ID -r 0.0.0.0/0 -i $BACKUP_NAT_ID -U $EC2_URL",
" ROUTE_HEALTHY=1\n", " ROUTE_HEALTHY=1",
" fi\n", " fi",
" # Check NAT state to see if we should stop it or start it again\n", " # Check NAT state to see if we should stop it or start it again",
" NAT_STATE=`/opt/ec2-api-tools/bin/ec2-describe-instances $PRIMARY_NAT_ID -U $EC2_URL | grep INSTANCE | awk '{print $5;}'`\n", " NAT_STATE=`/opt/ec2-api-tools/bin/ec2-describe-instances $PRIMARY_NAT_ID -U $EC2_URL | grep INSTANCE | awk '{print $5;}'`",
" if [ \"$NAT_STATE\" == \"stopped\" ]; then\n", " if [ \"$NAT_STATE\" == \"stopped\" ]; then",
" echo `date` \"-- NAT($PRIMARY_NAT_ID) instance stopped, starting it back up\"\n", " echo `date` \"-- NAT($PRIMARY_NAT_ID) instance stopped, starting it back up\"",
" /opt/ec2-api-tools/bin/ec2-start-instances $PRIMARY_NAT_ID -U $EC2_URL\n", " /opt/ec2-api-tools/bin/ec2-start-instances $PRIMARY_NAT_ID -U $EC2_URL",
" NAT_HEALTHY=1\n", " NAT_HEALTHY=1",
" sleep $Wait_for_Instance_Start\n", " sleep $Wait_for_Instance_Start",
" else\n", " else",
" if [ \"$STOPPING_NAT\" == \"0\" ]; then\n", " if [ \"$STOPPING_NAT\" == \"0\" ]; then",
" echo `date` \"-- NAT($PRIMARY_NAT_ID) instance $NAT_STATE, attempting to stop for reboot\"\n", " echo `date` \"-- NAT($PRIMARY_NAT_ID) instance $NAT_STATE, attempting to stop for reboot\"",
" /opt/ec2-api-tools/bin/ec2-stop-instances $PRIMARY_NAT_ID -U $EC2_URL\n", " /opt/ec2-api-tools/bin/ec2-stop-instances $PRIMARY_NAT_ID -U $EC2_URL",
" STOPPING_NAT=1\n", " STOPPING_NAT=1",
" fi\n", " fi",
" sleep $Wait_for_Instance_Stop\n", " sleep $Wait_for_Instance_Stop",
" fi\n", " fi",
" done\n", " done",
"\n", "",
" # Backup nat was healthy so we switched to it. It is now the primary.\n", " # Backup nat was healthy so we switched to it. It is now the primary.",
" if [ \"$NAT_HEALTHY\" == \"1\" ]; then\n", " if [ \"$NAT_HEALTHY\" == \"1\" ]; then",
" TEMP_NAT_ID=$PRIMARY_NAT_ID\n", " TEMP_NAT_ID=$PRIMARY_NAT_ID",
" TEMP_NAT_IP=$PRIMARY_NAT_IP\n", " TEMP_NAT_IP=$PRIMARY_NAT_IP",
"\n", "",
" PRIMARY_NAT_ID=$BACKUP_NAT_ID\n", " PRIMARY_NAT_ID=$BACKUP_NAT_ID",
" PRIMARY_NAT_IP=$BACKUP_NAT_IP\n", " PRIMARY_NAT_IP=$BACKUP_NAT_IP",
"\n", "",
" BACKUP_NAT_ID=$TEMP_NAT_ID\n", " BACKUP_NAT_ID=$TEMP_NAT_ID",
" BACKUP_NAT_IP=$TEMP_NAT_IP\n", " BACKUP_NAT_IP=$TEMP_NAT_IP",
" fi\n", " fi",
" fi\n", " fi",
" else\n", " else",
" sleep $Wait_Between_Pings\n", " sleep $Wait_Between_Pings",
" fi\n", " fi",
"done\n", "done",
"EOF\n", "EOF",
"chmod u+x /opt/edx/bin/nat_monitor.sh\n", "chmod u+x /opt/edx/bin/nat_monitor.sh",
"echo '@reboot /root/nat_monitor.sh > /var/log/nat_monitor.log' | crontab\n", "echo '@reboot /root/nat_monitor.sh > /var/log/nat_monitor.log' | crontab",
"/opt/edx/bin/nat_monitor.sh > /var/log/nat_monitor.log &\n" "/opt/edx/bin/nat_monitor.sh > /var/log/nat_monitor.log &"
]]}} ]]}}
} }
}, },
......
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