🌱 flux: Feature Request: Allow flux diff ks when the Kustomization does not already

fixes/cncf-generated/flux/flux-5439-feature-request-allow-flux-diff-ks-when-the-kustomization-does-not-alr.json

@@ -0,0 +1,73 @@
+{
+  "version": "kc-mission-v1",
+  "name": "flux-5439-feature-request-allow-flux-diff-ks-when-the-kustomization-does-not-alr",
+  "missionClass": "fixer",
+  "author": "KubeStellar Bot",
+  "authorGithub": "kubestellar",
+  "mission": {
+    "title": "flux: Feature Request: Allow `flux diff ks` when the `Kustomization` does not already exist",
+    "description": "Feature Request: Allow `flux diff ks` when the `Kustomization` does not already exist. Requested by 6+ users.",
+    "type": "feature",
+    "status": "completed",
+    "steps": [
+      {
+        "title": "Check current flux deployment",
+        "description": "Verify your flux version and configuration:\n```bash\nkubectl get pods -n flux -l app.kubernetes.io/name=flux\nhelm list -n flux 2>/dev/null || echo \"Not installed via Helm\"\n```\nThis feature requires a working flux installation."
+      },
+      {
+        "title": "Review flux configuration",
+        "description": "Inspect the relevant flux configuration:\n```bash\nkubectl get all -n flux -l app.kubernetes.io/name=flux\nkubectl get configmap -n flux -l app.kubernetes.io/part-of=flux\n```\nRelated: #3270\n\n`flux diff` is great for identifying changes when the `Kustomization` object already exists on the cluster."
+      },
+      {
+        "title": "Apply the fix for Feature Request: Allow `flux diff ks` when the…",
+        "description": "One half of changes necessary to resolve https://github.com/fluxcd/flux2/issues/5781 ; makes use of changes introduced in the `pkg` dependency by https://github.com/fluxcd/pkg/pull/1153\n\nAs suggested, this change keeps the current behavior for building kustomizations internally as part of `flux build kustomization ...`, but allows users to opt-in with the `--in-memory-build` flag, which will use `filesys.MakeFsInMemory()`. \n\nTo keep things a bit cleaner, I opted to add a filesystem \"backend\"\n\nSee the source issue for community-verified solutions."
+      },
+      {
+        "title": "Verify the feature works",
+        "description": "Test that the new capability is working as expected:\n```bash\nkubectl get pods -n flux -l app.kubernetes.io/name=flux\nkubectl get events -n flux --sort-by='.lastTimestamp' | tail -10\n```\nConfirm the feature described in \"Feature Request: Allow `flux diff ks` when the…\" is functioning correctly."
+      }
+    ],
+    "resolution": {
+      "summary": "One half of changes necessary to resolve https://github.com/fluxcd/flux2/issues/5781 ; makes use of changes introduced in the `pkg` dependency by https://github.com/fluxcd/pkg/pull/1153\n\nAs suggested, this change keeps the current behavior for building kustomizations internally as part of `flux build kustomization ...`, but allows users to opt-in with the `--in-memory-build` flag, which will use",
+      "codeSnippets": []
+    }
+  },
+  "metadata": {
+    "tags": [
+      "flux",
+      "graduated",
+      "app-definition",
+      "feature"
+    ],
+    "cncfProjects": [
+      "flux"
+    ],
+    "targetResourceKinds": [],
+    "difficulty": "beginner",
+    "issueTypes": [
+      "feature"
+    ],
+    "maturity": "graduated",
+    "sourceUrls": {
+      "issue": "https://github.com/fluxcd/flux2/issues/5439",
+      "repo": "https://github.com/fluxcd/flux2",
+      "pr": "https://github.com/fluxcd/flux2/pull/5794"
+    },
+    "reactions": 6,
+    "comments": 5,
+    "synthesizedBy": "copilot"
+  },
+  "prerequisites": {
+    "kubernetes": ">=1.24",
+    "tools": [
+      "kubectl"
+    ],
+    "description": "A running Kubernetes cluster with flux installed or the issue environment reproducible."
+  },
+  "security": {
+    "scannedAt": "2026-04-14T06:38:26.846Z",
+    "scannerVersion": "cncf-gen-3.0.0",
+    "sanitized": true,
+    "findings": []
+  }
+}