From 0fb8c1d44b8b8322280b4a2e08c32e1fb4874033 Mon Sep 17 00:00:00 2001
From: Alejandro Mery <amery@jpi.io>
Date: Tue, 5 Sep 2023 12:04:22 +0000
Subject: [PATCH] zones: introduce Zones.CephFSID and Zones.GetCephFSID()

the accessor doesn't generate one if needed yet

Signed-off-by: Alejandro Mery <amery@jpi.io>
---
 go.mod             |  1 +
 go.sum             |  2 ++
 pkg/zones/ceph.go  | 15 +++++++++++++++
 pkg/zones/zones.go |  7 +++++++
 4 files changed, 25 insertions(+)
 create mode 100644 pkg/zones/ceph.go

diff --git a/go.mod b/go.mod
index 898b328..6e9c068 100644
--- a/go.mod
+++ b/go.mod
@@ -8,6 +8,7 @@ require (
 	darvaza.org/sidecar v0.0.2
 	darvaza.org/slog v0.5.3
 	github.com/burntSushi/toml v0.3.1
+	github.com/gofrs/uuid/v5 v5.0.0
 	github.com/hack-pad/hackpadfs v0.2.1
 	github.com/mgechev/revive v1.3.3
 	github.com/spf13/cobra v1.7.0
diff --git a/go.sum b/go.sum
index d04ecf7..8d58d18 100644
--- a/go.sum
+++ b/go.sum
@@ -26,6 +26,8 @@ github.com/fatih/color v1.15.0/go.mod h1:0h5ZqXfHYED7Bhv2ZJamyIOUej9KtShiJESRwBD
 github.com/fatih/structtag v1.2.0 h1:/OdNE99OxoI/PqaW/SuSK9uxxT3f/tcSZgon/ssNSx4=
 github.com/fatih/structtag v1.2.0/go.mod h1:mBJUNpUnHmRKrKlQQlmCrh5PuhftFbNv8Ys4/aAZl94=
 github.com/godbus/dbus/v5 v5.0.4/go.mod h1:xhWf0FNVPg57R7Z0UbKHbJfkEywrmjJnf7w5xrFpKfA=
+github.com/gofrs/uuid/v5 v5.0.0 h1:p544++a97kEL+svbcFbCQVM9KFu0Yo25UoISXGNNH9M=
+github.com/gofrs/uuid/v5 v5.0.0/go.mod h1:CDOjlDMVAtN56jqyRUZh58JT31Tiw7/oQyEXZV+9bD8=
 github.com/hack-pad/hackpadfs v0.2.1 h1:FelFhIhv26gyjujoA/yeFO+6YGlqzmc9la/6iKMIxMw=
 github.com/hack-pad/hackpadfs v0.2.1/go.mod h1:khQBuCEwGXWakkmq8ZiFUvUZz84ZkJ2KNwKvChs4OrU=
 github.com/inconshreveable/mousetrap v1.1.0 h1:wN+x4NVGpMsO7ErUn/mUI3vEoE6Jt13X2s0bqwp9tc8=
diff --git a/pkg/zones/ceph.go b/pkg/zones/ceph.go
new file mode 100644
index 0000000..94ef7d9
--- /dev/null
+++ b/pkg/zones/ceph.go
@@ -0,0 +1,15 @@
+package zones
+
+import (
+	"darvaza.org/core"
+	"github.com/gofrs/uuid/v5"
+)
+
+// GetCephFSID returns our Ceph's FSID
+func (m *Zones) GetCephFSID() (uuid.UUID, error) {
+	if core.IsZero(m.CephFSID) {
+		// TODO: generate one
+		return uuid.Nil, nil
+	}
+	return m.CephFSID, nil
+}
diff --git a/pkg/zones/zones.go b/pkg/zones/zones.go
index f25f264..fad4c30 100644
--- a/pkg/zones/zones.go
+++ b/pkg/zones/zones.go
@@ -6,6 +6,7 @@ import (
 	"sort"
 
 	"darvaza.org/resolver"
+	"github.com/gofrs/uuid/v5"
 )
 
 var (
@@ -135,15 +136,21 @@ func (z *Zone) GatewayIDs() ([]int, int) {
 	return out, len(out)
 }
 
+// revive:disable:line-length-limit
+
 // Zones represents all zones in a cluster
 type Zones struct {
 	dir      fs.FS
 	resolver resolver.Resolver
 	domain   string
 
+	CephFSID uuid.UUID `toml:"ceph_fsid,omitempty" json:"ceph_fsid,omitempty" yaml:"ceph_fsid,omitempty"`
+
 	Zones []*Zone `toml:"zones"`
 }
 
+// revive:enable:line-length-limit
+
 // ForEachMachine calls a function for each Machine in the cluster
 // until instructed to terminate the loop
 func (m *Zones) ForEachMachine(fn func(*Machine) bool) {