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Cal.com - Developer guide

dinesh chathuranga

• 6 min read
Cal.com - Developer guide

Welcome to the Meetrix Cal.com Developer Guide! This guide is designed to assist you in seamlessly integrating Cal.com into your AWS environment through detailed, step-by-step instructions.

Cal.com is a comprehensive meeting scheduler tool equipped with PostgreSQL database backup capabilities. Streamline your appointment scheduling, enhance data security, and optimize your business operations effortlessly with our user-friendly, cost-effective solution.

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How to Self-Host Cal.com in AWS with Pre-Configured AMI
Master self-hosting Cal.com on AWS with our comprehensive 2024 A to Z installation guide, featuring a pre-configured AMI, perfect for users in the UK, USA, Europe, Ireland, Singapore, and Thailand
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Prerequisites

Before you get started with the Cal.com AMI, ensure you have the following prerequisites:

Launching the AMI

Step 1: Find and Select 'Cal.com' AMI

  1. Log in to your AWS Management Console.
  2. Navigate to the 'Cal.com' in  AWS Marketplace.

Step 2:  Initial Setup & Configuration

  1. Click the "Continue to Subscribe" button.
  2. After subscribing, you will need to accept the terms and conditions. Click on "Accept Terms" to proceed.
  3. Please wait for a few minutes while the processing takes place. Once it's completed, click on "Continue to Configuration".
  4. Select your preferred region in "Configure this software" page and click "Continue to Launch" button.
  5. From the "Choose Action" dropdown menu in "Launch this software" page, select "Launch CloudFormation" and click "Launch" button.

Create CloudFormation Stack

Step1: Create stack

  1. Ensure the "Template is ready" radio button is selected under "Prepare template".

2. Click "Next".

Step2: Specify stack options

  1. Provide a unique "Stack name".
  2. Provide the "Admin Email" for SSL generation.
  3. For "DeploymentName", enter a name of your choice.
  4. Provide a public domain name for "DomainName" (Cal.com will automatically try to setup SSL based on provided domain name, if that domain hosted on Route53. Please make sure your domain name hosted on route53. If its unsuccessful then you have to setup SSL manually).
  5. For "EmailFrom", enter the email that will appear to the email recipient as the sender's email.
  6. Choose an instance type, "InstanceType" (Recommended: t3.small).
  7. Select your preferred "keyName".
  8. Provide a S3 bucket name to "S3Bucket" for storing PostgreSQL backups.
  9. Enter "SMTPHost", "SMTPPassword", "SMTPPort" and "SMTPUser".
  10. Set "SSHLocation" as "0.0.0.0/0".
  11. Keep "SubnetCidrBlock" as "10.0.0.0/24".
  12. Keep "VpcCidrBlock" as "10.0.0.0/16".
  13. Click "Next".

Step3: Configure stack options

  1. Choose "Roll back all stack resources" and "Delete all newly created resources" under the "Stack failure options" section.
  2. Click "Next".

Step4: Review

  1. Review and verify the details you've entered.

2. Tick the box that says, "I acknowledge that AWS CloudFormation might create IAM resources with custom names".

3. Click "Submit".

Afterward, you'll be directed to the CloudFormation stacks page.

Please wait for 5-10 minutes until the stack has been successfully created.

Update DNS

Step1: Copy IP Address

Copy the public Ip labeled "PublicIp" in the "Outputs" tab.

Step2: Update DNS

  1. Go to AWS Route 53 and navigate to "Hosted Zones".
  2. From there, select the domain you provided to "DomainName".

3. Click "Edit record" in the "Record details" and then paste the copied "PublicIp" into the "value" textbox.

4. Click "Save".

Access Cal.com

You can access the Cal.com application through the "DashboardUrl" or "DashboardUrlIp" provided in the "Outputs" tab.

(If you encounter a "502 Bad Gateway error", please wait for about 5 minutes before refreshing the page)

Generate SSL Manually

Cal.com will automatically try to setup SSL based on provided domain name, if that domain hosted on Route53. If its unsuccessful then you have to setup SSL manually.

Step1: Copy IP Address

  1. Proceed with the instructions outlined in the above "Update DNS" section, if you have not already done so.

2. Copy the Public IP address indicated as "PublicIp" in the "Outputs" tab.

Step2: Log in to the server

  1. Open the terminal and go to the directory where your private key is located.
  2. Paste the following command into your terminal and press Enter: ssh -i <your key name> ubuntu@<Public IP address>.

3. Type "yes" and press Enter. This will log you into the server.

Step3: Generate SSL

Paste the following command into your terminal and press Enter and follow the instructions:

sudo /root/certificate_generate_standalone.sh

Admin Email is acquiring for generate SSL certificates.

Shutting Down Cal.com

  1. Click the link labeled "Instance" in the "Resources" tab to access the EC2 instance, you will be directed to the Cal.com instance in EC2.

2. Select the Cal.com instance by marking the checkbox and click "Stop instance" from the "Instance state" dropdown. You can restart the instance at your convenience by selecting "Start instance".

Remove Cal.com

Delete the stack that has been created in the AWS Management Console under 'CloudFormation Stacks' by clicking the 'Delete' button.

Api Documentation

Cal.com api is a rest styled API that gives control over almost the entire Cal.com platform by providing all the resources available exposed as simple HTTP endpoints.

Api Documentation

Upgrades

When there is an upgrade, we will update the product with a newer version. You can check the product version in AWS Marketplace. If a newer version is available, you can remove the previous version and launch the product again using the newer version. Remember to backup the necessary server data before removing.

Troubleshoot

  1.  If you face the following error, please follow https://meetrix.io/articles/how-to-increase-aws-quota/ blog to increase vCPU quota.

2.  If you face the following error (do not have sufficient <instance_type> capacity...) while creating the stack, try changing the region or try creating the stack at a later time.

3. If you face the below error, when you try to access the API dashboard, please wait 5-10 minutes and then try.

Conclusion

The Meetrix Cal.com Developer Guide provides clear, step-by-step instructions for integrating Cal.com into your AWS environment seamlessly. With robust meeting scheduling and PostgreSQL database backup features, Cal.com optimizes appointment management and enhances data security. Whether you're improving operational efficiency or refining scheduling processes, Cal.com offers a straightforward, cost-effective solution. Rely on the guide to simplify your appointment scheduling with confidence.

Technical Support

Reach out to Meetrix Support (support@meetrix.io)  for assistance with Cal.com issues.

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