🌱 contour: Add Per-HTTPProxy HTTP-Version Support to Address HTTP2 Coalescing Issues with

solutions/cncf-generated/contour/contour-5822-add-per-httpproxy-http-version-support-to-address-http2-coalescing-.json

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+{
+  "version": "kc-mission-v1",
+  "name": "contour-5822-add-per-httpproxy-http-version-support-to-address-http2-coalescing-",
+  "missionClass": "solution",
+  "author": "KubeStellar Bot",
+  "authorGithub": "kubestellar",
+  "mission": {
+    "title": "contour: Add Per-HTTPProxy HTTP-Version Support to Address HTTP2 Coalescing Issues with Wildcards",
+    "description": "Add Per-HTTPProxy HTTP-Version Support to Address HTTP2 Coalescing Issues with Wildcards. Requested by 11+ users.",
+    "type": "feature",
+    "status": "completed",
+    "steps": [
+      {
+        "title": "Check current contour deployment",
+        "description": "Verify your contour version and configuration:\n```bash\nkubectl get pods -n projectcontour -l app.kubernetes.io/name=contour\nhelm list -n projectcontour 2>/dev/null || echo \"Not installed via Helm\"\n```\nThis feature requires a working contour installation."
+      },
+      {
+        "title": "Review contour configuration",
+        "description": "Inspect the relevant contour configuration:\n```bash\nkubectl get all -n projectcontour -l app.kubernetes.io/name=contour\nkubectl get configmap -n projectcontour -l app.kubernetes.io/part-of=contour\n```\n### Description:\n\nWith the emergence of the `HTTP2 Coalescing` issue, where using a wildcard can result in complications in SNI-based routing (as fully discussed in multiple issues including https://github.com/projectcontour/contour/issues/1493),"
+      },
+      {
+        "title": "Apply the fix for Add Per-HTTPProxy HTTP-Version Support to Address HTTP2…",
+        "description": "This PR adds a new field to HTTPProxy spec which specifies the HTTP versions to offer for that HTTPProxy. It's used only when `spec.tls` is set and `spec.tcpproxy` is not.\n\nA critical use case for the field is when we're serving multiple HTTPProxies where a subset of them use the same wildcard certificate. We can disable http/2 for those utilizing this field while keeping it enabled for others.\n\nSee the source issue for community-verified solutions."
+      },
+      {
+        "title": "Upgrade contour to include the fix",
+        "description": "If the fix is included in a newer release, upgrade contour:\n```bash\nhelm repo update\nhelm upgrade contour contour/contour --namespace contour\n```\nVerify the upgrade:\n```bash\nkubectl get pods -n projectcontour\nhelm list -n projectcontour\n```"
+      },
+      {
+        "title": "Verify the feature works",
+        "description": "Test that the new capability is working as expected:\n```bash\nkubectl get pods -n projectcontour -l app.kubernetes.io/name=contour\nkubectl get events -n projectcontour --sort-by='.lastTimestamp' | tail -10\n```\nConfirm the feature described in \"Add Per-HTTPProxy HTTP-Version Support to Address HTTP2…\" is functioning correctly."
+      }
+    ],
+    "resolution": {
+      "summary": "This PR adds a new field to HTTPProxy spec which specifies the HTTP versions to offer for that HTTPProxy. It's used only when `spec.tls` is set and `spec.tcpproxy` is not.\n\nA critical use case for the field is when we're serving multiple HTTPProxies where a subset of them use the same wildcard certificate. We can disable http/2 for those utilizing this field while keeping it enabled for others.",
+      "codeSnippets": []
+    }
+  },
+  "metadata": {
+    "tags": [
+      "contour",
+      "incubating",
+      "networking",
+      "feature"
+    ],
+    "cncfProjects": [
+      "contour"
+    ],
+    "targetResourceKinds": [],
+    "difficulty": "beginner",
+    "issueTypes": [
+      "feature"
+    ],
+    "maturity": "incubating",
+    "sourceUrls": {
+      "issue": "https://github.com/projectcontour/contour/issues/5822",
+      "repo": "https://github.com/projectcontour/contour",
+      "pr": "https://github.com/projectcontour/contour/pull/5802"
+    },
+    "reactions": 11,
+    "comments": 3,
+    "synthesizedBy": "copilot"
+  },
+  "prerequisites": {
+    "kubernetes": ">=1.24",
+    "tools": [
+      "kubectl"
+    ],
+    "description": "A running Kubernetes cluster with contour installed or the issue environment reproducible."
+  },
+  "security": {
+    "scannedAt": "2026-03-16T06:38:00.690Z",
+    "scannerVersion": "cncf-gen-3.0.0",
+    "sanitized": true,
+    "findings": []
+  }
+}