introduce staging binary cache to migration

terraform/cache-bucket/main.tf

@@ -0,0 +1,132 @@
+variable "bucket_name" {
+  type = string
+}
+
+resource "aws_s3_bucket" "cache" {
+  provider = aws
+  bucket   = var.bucket_name
+
+  lifecycle_rule {
+    enabled = true
+
+    transition {
+      days          = 365
+      storage_class = "STANDARD_IA"
+    }
+  }
+
+  cors_rule {
+    allowed_headers = ["Authorization"]
+    allowed_methods = ["GET"]
+    allowed_origins = ["*"]
+    max_age_seconds = 3000
+  }
+}
+
+resource "aws_s3_bucket_public_access_block" "cache" {
+  bucket = aws_s3_bucket.cache.bucket
+
+  block_public_acls   = false
+  block_public_policy = false
+}
+
+resource "aws_s3_bucket_object" "cache-nix-cache-info" {
+  provider   = aws
+  depends_on = [aws_s3_bucket_public_access_block.cache]
+
+  bucket       = aws_s3_bucket.cache.bucket
+  content_type = "text/x-nix-cache-info"
+  etag         = filemd5("${path.module}/../cache-staging/nix-cache-info")
+  key          = "nix-cache-info"
+  source       = "${path.module}/../cache-staging/nix-cache-info"
+}
+
+resource "aws_s3_bucket_object" "cache-index-html" {
+  provider   = aws
+  depends_on = [aws_s3_bucket_public_access_block.cache]
+
+  bucket       = aws_s3_bucket.cache.bucket
+  content_type = "text/html"
+  etag         = filemd5("${path.module}/../cache-staging/index.html")
+  key          = "index.html"
+  source       = "${path.module}/../cache-staging/index.html"
+}
+
+resource "aws_s3_bucket_policy" "cache" {
+  provider   = aws
+  bucket     = aws_s3_bucket.cache.id
+  depends_on = [aws_s3_bucket_public_access_block.cache]
+
+  # imported from existing
+  policy = <<EOF
+{
+  "Version": "2008-10-17",
+  "Statement": [
+    {
+      "Sid": "AllowPublicRead",
+      "Effect": "Allow",
+      "Principal": {
+        "AWS": "*"
+      },
+      "Action": "s3:GetObject",
+      "Resource": "arn:aws:s3:::${var.bucket_name}/*"
+    },
+    {
+      "Sid": "AllowUploadDebuginfoWrite",
+      "Effect": "Allow",
+      "Principal": {
+        "AWS": "arn:aws:iam::080433136561:user/s3-upload-releases"
+      },
+      "Action": [
+        "s3:PutObject",
+        "s3:PutObjectAcl"
+      ],
+      "Resource": "arn:aws:s3:::${var.bucket_name}/debuginfo/*"
+    },
+    {
+      "Sid": "AllowUploadDebuginfoRead",
+      "Effect": "Allow",
+      "Principal": {
+        "AWS": "arn:aws:iam::080433136561:user/s3-upload-releases"
+      },
+      "Action": "s3:GetObject",
+      "Resource": "arn:aws:s3:::${var.bucket_name}/*"
+    },
+    {
+      "Sid": "AllowUploadDebuginfoRead2",
+      "Effect": "Allow",
+      "Principal": {
+        "AWS": "arn:aws:iam::080433136561:user/s3-upload-releases"
+      },
+      "Action": [
+        "s3:ListBucket",
+        "s3:GetBucketLocation"
+      ],
+      "Resource": "arn:aws:s3:::${var.bucket_name}"
+    }
+  ]
+}
+EOF
+}
+
+resource "aws_s3_bucket_request_payment_configuration" "cache" {
+  provider = aws
+  bucket   = aws_s3_bucket.cache.id
+  payer    = "Requester"
+}
+
+output "bucket" {
+  value = aws_s3_bucket.cache.bucket
+}
+
+output "bucket_domain_name" {
+  value = aws_s3_bucket.cache.bucket_domain_name
+}
+
+output "bucket_regional_domain_name" {
+  value = aws_s3_bucket.cache.bucket_regional_domain_name
+}
+
+output "region" {
+  value = aws_s3_bucket.cache.region
+}

terraform/cache-bucket/providers.tf

@@ -0,0 +1,7 @@
+terraform {
+  required_providers {
+    aws = {
+      source = "registry.terraform.io/hashicorp/aws"
+    }
+  }
+}