homelab-nomad/acls/vault_policies.tf

resource "vault_policy" "admin" {
  name = "admin"

  policy = <<EOF
path "*" {
  capabilities = ["create", "read", "update", "delete", "list", "sudo"]
}
  EOF
}

resource "vault_policy" "nomad-deploy" {
  name   = "nomad-deploy"
  policy = <<EOH
path "nomad/creds/nomad-deploy" {
  capabilities = ["read"]
}
EOH
}

# Policy for clusters
resource "vault_policy" "nomad-task" {
  name   = "nomad-task"
  policy = <<EOH
path "kv/data/*" {
  # Does this need create, update, delete?
  capabilities = ["create", "read", "update", "delete", "list"]
}
EOH
}

# Policy for nomad tokens
resource "vault_policy" "nomad-server" {
  name   = "nomad-server"
  policy = <<EOH
# Allow creating tokens under "nomad-cluster" token role. The token role name
# should be updated if "nomad-cluster" is not used.
path "auth/token/create/nomad-cluster" {
  capabilities = ["update"]
}

# Allow looking up "nomad-cluster" token role. The token role name should be
# updated if "nomad-cluster" is not used.
path "auth/token/roles/nomad-cluster" {
  capabilities = ["read"]
}

# Allow looking up the token passed to Nomad to validate # the token has the
# proper capabilities. This is provided by the "default" policy.
path "auth/token/lookup-self" {
  capabilities = ["read"]
}

# Allow looking up incoming tokens to validate they have permissions to access
# the tokens they are requesting. This is only required if
# `allow_unauthenticated` is set to false.
path "auth/token/lookup" {
  capabilities = ["update"]
}

# Allow revoking tokens that should no longer exist. This allows revoking
# tokens for dead tasks.
path "auth/token/revoke-accessor" {
  capabilities = ["update"]
}

# Allow checking the capabilities of our own token. This is used to validate the
# token upon startup.
path "sys/capabilities-self" {
  capabilities = ["update"]
}

# Allow our own token to be renewed.
path "auth/token/renew-self" {
  capabilities = ["update"]
}

# This section grants all access on "secret/*". Further restrictions can be
# applied to this broad policy, as shown below.
path "kv/data/*" {
  capabilities = ["create", "read", "update", "delete", "list"]
}
EOH
}