file-share/terraform/security.tf

resource "aws_security_group" "file_share" {
  name        = "file-share"
  description = "SMB, FileBrowser, and SFTP from office LANs"
  vpc_id      = data.aws_vpc.syslog.id

  tags = {
    Name = "file-share"
  }
}

resource "aws_vpc_security_group_egress_rule" "all" {
  security_group_id = aws_security_group.file_share.id
  ip_protocol       = "-1"
  cidr_ipv4         = "0.0.0.0/0"
  description       = "Outbound for package install, Secrets Manager, and SSM"
}

resource "aws_vpc_security_group_ingress_rule" "smb" {
  for_each = toset(local.office_lan_cidrs)

  security_group_id = aws_security_group.file_share.id
  ip_protocol       = "tcp"
  from_port         = 445
  to_port           = 445
  cidr_ipv4         = each.value
  description       = "SMB from office LAN"
}

resource "aws_vpc_security_group_ingress_rule" "filebrowser" {
  for_each = toset(local.office_lan_cidrs)

  security_group_id = aws_security_group.file_share.id
  ip_protocol       = "tcp"
  from_port         = 8080
  to_port           = 8080
  cidr_ipv4         = each.value
  description       = "FileBrowser from office LAN"
}

resource "aws_vpc_security_group_ingress_rule" "sftp" {
  for_each = toset(local.office_lan_cidrs)

  security_group_id = aws_security_group.file_share.id
  ip_protocol       = "tcp"
  from_port         = 22
  to_port           = 22
  cidr_ipv4         = each.value
  description       = "SFTP from office LAN"
}