Subnets

Subnets are created for core components managed within the module, namely:

Bastion
Operator
Control plane (cp)
Workers
Pods
Internal load balancers (int_lb)
Public load balancers (pub_lb)

Create new subnets (automatic)

subnets = {
  bastion  = { newbits = 13 }
  operator = { newbits = 13 }
  cp       = { newbits = 13 }
  int_lb   = { newbits = 11 }
  pub_lb   = { newbits = 11 }
  workers  = { newbits = 2 }
  pods     = { newbits = 2 }
}

Create new subnets (forced)

subnets = {
  bastion = {
    create  = "always",
    netnum  = 0,
    newbits = 13
  }

  operator = {
    create  = "always",
    netnum  = 1,
    newbits = 13
  }

  cp = {
    create  = "always",
    netnum  = 2,
    newbits = 13
  }

  int_lb = {
    create  = "always",
    netnum  = 16,
    newbits = 11
  }

  pub_lb = {
    create  = "always",
    netnum  = 17,
    newbits = 11
  }

  workers = {
    create  = "always",
    netnum  = 1,
    newbits = 2
  }
}

Create new subnets (CIDR notation)

subnets = {
  bastion  = { cidr = "10.0.0.0/29" }
  operator = { cidr = "10.0.0.64/29" }
  cp       = { cidr = "10.0.0.8/29" }
  int_lb   = { cidr = "10.0.0.32/27" }
  pub_lb   = { cidr = "10.0.128.0/27" }
  workers  = { cidr = "10.0.144.0/20" }
  pods     = { cidr = "10.0.64.0/18" }
}

Create new subnets with IPv4 and IPv6 (CIDR notation)

subnets = {
  bastion  = { cidr = "10.0.0.0/29", ipv6_cidr = "8, 0" }
  operator = { cidr = "10.0.0.64/29", ipv6_cidr = "8, 1" }
  cp       = { cidr = "10.0.0.8/29", ipv6_cidr = "8, 2" }
  int_lb   = { cidr = "10.0.0.32/27", ipv6_cidr = "8, 3" }
  pub_lb   = { cidr = "10.0.128.0/27", ipv6_cidr = "8, 4" }
  workers  = { cidr = "10.0.144.0/20", ipv6_cidr = "2603:c020:8010:f002::/64" }
  pods     = { cidr = "10.0.64.0/18", ipv6_cidr = "2603:c020:8010:f003::/64" }
}

Use existing subnets

subnets = {
  operator = { id = "ocid1.subnet..." }
  cp       = { id = "ocid1.subnet..." }
  int_lb   = { id = "ocid1.subnet..." }
  pub_lb   = { id = "ocid1.subnet..." }
  workers  = { id = "ocid1.subnet..." }
  pods     = { id = "ocid1.subnet..." }
}

References