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# Build the tippecanoe layer (binary)
1. On an AWS Linux 2 instance or image:
sudo yum update
sudo yum install git clang sqlite-devel zlib-devel
2. Create a ZIP archive with the `tippecanoe` binary at `bin/tippecanoe` and upload as a Lambda layer
3. Copy [lambda_function.py](lambda_function.py) (python 3.9 runtime)
4. set the environment variable `OUTPUT_BUCKET` to your output bucket; give lambda IAM role access to input/output buckets
5. Enable ACLs on the output bucket
```json
{
"Version": "2012-10-17",
"Statement": [
{
"Sid": "AllowGet",
"Effect": "Allow",
"Action": "s3:GetObject",
"Resource": "arn:aws:s3:::protomaps-tippecanoe-test/*"
},
{
"Sid": "AllowPut",
"Effect": "Allow",
"Action": [
"s3:PutObject",
"s3:PutObjectAcl"
],
"Resource": "arn:aws:s3:::protomaps-tippecanoe-test-output/*"
}
]
}
```
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