[Feature request] Update a Route53 DNS record with the IP of the EC2 instance #68
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BTW, the script in the linked guide shows a way how to get the public IP from inside the machine, without having to consult an external service like opendns. |
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Cool, I like this idea! If anyone also interested in this feature, please leave a comment or reaction so we know you need it! |
mrumpf
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Oct 3, 2023
Implements VeriorPies#68 A DNS name is setup automatically when the parameter DOMAIN_NAME is set to a name pointing to an existing Hosted Zone. Setting up a hosted zone on AWS involves purchasing a domain and paying a for it on a yearly basis. This makes it hard to automate and is therefore left out of the automation. Instead an existing hosted zone is referenced by the value of the parameter DOMAIN_NAME in the MineCloud-Service-Info.ts file. When this parameter is set, an additional branch of the CDK script gets executed, which assigns some additional policies to the EC2 role to allow the VM to lookup the hosted zone id to update the IP address of the ARecord, which has been created by CDK. The DNS name is derived by appending the value of DOMAIN_NAME to the hostname "minecloud". The DOMAIN_NAME is attached as a tag to the EC2 instance to make it accessible to the start_service.sh script which updates the ARecord with the assigned IP address. The bot pushes the domain name to the Discord channel only when the DOMAIN_NAME parameter has been set. The changeset also includes a change to avoid the file MineCloud-Service-Info.ts with all the private data being committed to Git accidentally. Therefore the file is renamed to MineCloud-Service-Info.ts.sample and the README is updated to make a copy to the actual name MineCloud-Service-Info.ts before setting all the parameters. The MineCloud-Service-Info.ts is set to the .gitignore list so that the actual file is ignored upon git commits.
314pies
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Oct 30, 2023
* Allow setting up a DNS name for the minecloud server Implements #68 A DNS name is setup automatically when the parameter DOMAIN_NAME is set to a name pointing to an existing Hosted Zone. Setting up a hosted zone on AWS involves purchasing a domain and paying a for it on a yearly basis. This makes it hard to automate and is therefore left out of the automation. Instead an existing hosted zone is referenced by the value of the parameter DOMAIN_NAME in the MineCloud-Service-Info.ts file. When this parameter is set, an additional branch of the CDK script gets executed, which assigns some additional policies to the EC2 role to allow the VM to lookup the hosted zone id to update the IP address of the ARecord, which has been created by CDK. The DNS name is derived by appending the value of DOMAIN_NAME to the hostname "minecloud". The DOMAIN_NAME is attached as a tag to the EC2 instance to make it accessible to the start_service.sh script which updates the ARecord with the assigned IP address. The bot pushes the domain name to the Discord channel only when the DOMAIN_NAME parameter has been set. The changeset also includes a change to avoid the file MineCloud-Service-Info.ts with all the private data being committed to Git accidentally. Therefore the file is renamed to MineCloud-Service-Info.ts.sample and the README is updated to make a copy to the actual name MineCloud-Service-Info.ts before setting all the parameters. The MineCloud-Service-Info.ts is set to the .gitignore list so that the actual file is ignored upon git commits. * Reverts a change that is not ready yet, accidentally committed * Added some more comments
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Is your feature request related to a problem? Please describe.
Every time the Ec2 machine starts, a script could be run to update a configurable DNS record.
Describe the solution you'd like
I own a domain which I would like to use to make it easier to connect to the server by creating a record like minecraft.mydomain.cloud.
In the guide How to automatically update IP addresses a script is run at each boot to update a DNS record with the new IP address. The DNS name is added as a tag to the EC2 instance.
This could also be implemented as a Linux systemd service
An alternative solution would be to integrate the DNS update functionality into the Lambda function which posts the IP address into the Discord channel.
Whatever solution is implemented, the script could look at the EC2 instance tags and if there is a DNS_RECORD tag present it could execute the update Route53 dns record functionality. This would make this an optional feature, which can be controlled by giving an optional environment variable DNS_RECORD_TAG=minecraft.mydomain.cloud
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