Initial project snapshot

backend/migrations/000017_cluster_node_groups.up.sql

@@ -0,0 +1,40 @@
+CREATE TABLE IF NOT EXISTS cluster_node_groups (
+    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    cluster_id UUID NOT NULL REFERENCES clusters(id) ON DELETE CASCADE,
+    parent_group_id UUID REFERENCES cluster_node_groups(id) ON DELETE SET NULL,
+    name TEXT NOT NULL,
+    description TEXT,
+    sort_order INTEGER NOT NULL DEFAULT 0,
+    metadata JSONB NOT NULL DEFAULT '{}'::JSONB,
+    created_by_user_id UUID REFERENCES users(id) ON DELETE SET NULL,
+    created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+    updated_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+    CONSTRAINT cluster_node_groups_name_check CHECK (length(trim(name)) > 0),
+    CONSTRAINT cluster_node_groups_not_self_parent CHECK (parent_group_id IS NULL OR parent_group_id <> id),
+    UNIQUE (cluster_id, id)
+);
+
+CREATE UNIQUE INDEX IF NOT EXISTS idx_cluster_node_groups_unique_sibling_name
+    ON cluster_node_groups(cluster_id, COALESCE(parent_group_id, '00000000-0000-0000-0000-000000000000'::uuid), lower(name));
+
+CREATE INDEX IF NOT EXISTS idx_cluster_node_groups_parent
+    ON cluster_node_groups(cluster_id, parent_group_id, sort_order, name);
+
+CREATE TABLE IF NOT EXISTS cluster_node_group_memberships (
+    cluster_id UUID NOT NULL,
+    node_id UUID NOT NULL,
+    group_id UUID NOT NULL,
+    assigned_by_user_id UUID REFERENCES users(id) ON DELETE SET NULL,
+    assigned_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+    metadata JSONB NOT NULL DEFAULT '{}'::JSONB,
+    PRIMARY KEY (cluster_id, node_id),
+    FOREIGN KEY (cluster_id, node_id)
+        REFERENCES cluster_memberships(cluster_id, node_id)
+        ON DELETE CASCADE,
+    FOREIGN KEY (cluster_id, group_id)
+        REFERENCES cluster_node_groups(cluster_id, id)
+        ON DELETE CASCADE
+);
+
+CREATE INDEX IF NOT EXISTS idx_cluster_node_group_memberships_group
+    ON cluster_node_group_memberships(cluster_id, group_id);