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Use an EIP so when the instance is recreated, the IP doesn't change

This commit is contained in:
Craig Andrews 2019-09-10 16:04:09 -04:00
parent a01278284a
commit fa2409f302
2 changed files with 24 additions and 63 deletions
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23
distribution/flavors/aws-ec2-cloud/CloudFormation/cloudformation-template.json
View File

@ -172,6 +172,18 @@
}
}
},
"EC2EvergreenInstanceEIP": {
"DependsOn": [
"EvergreenVPC"
],
"Type": "AWS::EC2::EIP",
"Properties": {
"Domain": "vpc",
"InstanceId" : {
"Ref" : "EC2EvergreenInstance"
}
}
},
"EvergreenMasterSecurityGroup" : {
"Type" : "AWS::EC2::SecurityGroup",
"Properties" : {
@ -267,5 +279,16 @@
"S3BucketForArtifactManager": {
"Type": "AWS::S3::Bucket"
}
},
"Outputs": {
"EC2EvergreenInstanceIP": {
"Description": "Public IP address of the Evergreen EC2 instance",
"Value": {
"Fn::GetAtt": [
"EC2EvergreenInstance",
"PublicIp"
]
}
}
}
}

64
distribution/flavors/aws-ec2-cloud/README.adoc
View File

@ -54,71 +54,9 @@ This will display a json output like the following:
After a few minutes, the Jenkins master will have been created as an EC2 instance. To retrieve its IP, use the following command:
[source,shell]
aws cloudformation list-stack-resources --region us-east-1 --stack-name $STACK_NAME
This should display something like the following:
[source,json]
{
"StackResourceSummaries": [
{
"LogicalResourceId": "EC2EvergreenInstance",
"PhysicalResourceId": "i-09acbba4df83bcc59",
"ResourceType": "AWS::EC2::Instance",
"LastUpdatedTimestamp": "2018-07-16T05:23:36.996Z",
"ResourceStatus": "CREATE_IN_PROGRESS",
"ResourceStatusReason": "Resource creation Initiated"
},
{
"LogicalResourceId": "EvergreenAgentSecurityGroup",
"PhysicalResourceId": "evergreen-test17793-EvergreenAgentSecurityGroup-2538QM8PAIPN",
"ResourceType": "AWS::EC2::SecurityGroup",
"LastUpdatedTimestamp": "2018-07-16T05:21:20.708Z",
"ResourceStatus": "CREATE_COMPLETE"
},
{
"LogicalResourceId": "EvergreenMasterRole",
"PhysicalResourceId": "evergreen-test17793-EvergreenMasterRole-120MK7UAUWEYO",
"ResourceType": "AWS::IAM::Role",
"LastUpdatedTimestamp": "2018-07-16T05:21:29.926Z",
"ResourceStatus": "CREATE_COMPLETE"
},
{
"LogicalResourceId": "EvergreenMasterSecurityGroup",
"PhysicalResourceId": "evergreen-test17793-EvergreenMasterSecurityGroup-L2O7JE3F1LLR",
"ResourceType": "AWS::EC2::SecurityGroup",
"LastUpdatedTimestamp": "2018-07-16T05:21:21.057Z",
"ResourceStatus": "CREATE_COMPLETE"
},
{
"LogicalResourceId": "MasterInstanceProfile",
"PhysicalResourceId": "evergreen-test17793-MasterInstanceProfile-9ZP9RP2YFF8",
"ResourceType": "AWS::IAM::InstanceProfile",
"LastUpdatedTimestamp": "2018-07-16T05:23:32.794Z",
"ResourceStatus": "CREATE_COMPLETE"
},
{
"LogicalResourceId": "S3BucketForArtifactManager",
"PhysicalResourceId": "evergreen-test17793-s3bucketforartifactmanager-hwdtoaezhx1c",
"ResourceType": "AWS::S3::Bucket",
"LastUpdatedTimestamp": "2018-07-16T05:21:40.019Z",
"ResourceStatus": "CREATE_COMPLETE"
}
]
}
For the `EC2EvergreenInstance`, if the creation is complete enough, there will be also a `PhysicalResourceId`, here `i-09acbba4df83bcc59` in the example above.
Use this to retrieve the instance IP address:
[source,shell]
aws ec2 describe-instances --region=us-east-1 --instance-ids <i-09acbba4df83bcc59> | \
jq -r '.Reservations[0].Instances[].PublicIpAddress'
aws cloudformation describe-stacks --stack-name $STACK_NAME --query "Stacks[0].Outputs[?OutputKey=='EC2EvergreenInstanceIP'].OutputValue" --output text
1.2.3.4
TIP: `jq` is a nice tool to process JSON.
If you do not have it installed, either install it, or just look for `PublicIpAddress` field in the json returned from the `aws ec2 describe-instances` command.
Once you have the public IP, after a few minutes
footnote:[The master EC2 instance is being configured to run the Jenkins master. That is why even if the IP is already assigned, it could still take some more time to do additional things like installing Docker, pulling the evergreen image and have it started], open a browser on the http://1.2.3.4:8080 URL.
This should display the Jenkins Install Wizard, asking for a secret to unlock the screen, located under `/evergreen/data/jenkins/home/secrets/initialAdminPassword`.