sa_8001/ingress_migrate_annotations
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변정훈
2025-12-30 19:58:26 +09:00
parent fde91012b6
commit 530d7dd5f9
2 changed files with 139 additions and 74 deletions
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15
mapping.yaml
View File

@@ -71,7 +71,22 @@ nginx.ingress.kubernetes.io/enable-cors:
haproxy: haproxy.org/enable-cors
support: full
nginx.ingress.kubernetes.io/app-root:
haproxy: haproxy.org/path-rewrite
support: partial
note: "Chage Value"
nginx.ingress.kubernetes.io/configuration-snippet:
haproxy: null
support: unsupported
note: "HAProxy does not support arbitrary NGINX snippets"
proxy-buffering:
haproxy: null
support: unsupported
note: "HAProxy does not support arbitrary NGINX snippets"
gzip-level:
haproxy: null
support: unspported
note: "HAProxy does not support arbitrary NGINX snippets"

198
migrate.py
View File

@@ -15,6 +15,7 @@ from ruamel.yaml.comments import CommentedMap
yaml = YAML()
yaml.preserve_quotes = True
yaml.indent(mapping=2, sequence=4, offset=2)
yaml.width = 4096
# -----------------------------
@@ -35,6 +36,34 @@ def load_mapping(path):
return yaml.load(f)
# -----------------------------
# annotation 렌더링
# -----------------------------
def render_annotations_block(unsupported, partial, converted):
"""
annotations 하위에 그대로 삽입될 문자열을 생성
"""
lines = []
if unsupported:
note = unsupported[0]["note"]
lines.append(f" # {note}")
for u in unsupported:
lines.append(f" #{u['key']}: {u['value']}")
lines.append("")
if partial:
for p in partial:
lines.append(f" # PARTIAL SUPPORT: {p['note']}")
lines.append(f" {p['haproxy']}: {p['value']}")
lines.append("")
for c in converted:
lines.append(f" {c['haproxy']}: {c['value']}")
return "\n".join(lines)
# -----------------------------
# ingress 변환 로직
# -----------------------------
@@ -60,51 +89,48 @@ def migrate_ingress(data, mapping, ingress_class=None):
spec["ingressClassName"] = ingress_class
anns = meta.get("annotations", {}) or {}
new_anns = CommentedMap()
unsupported = []
partial = []
converted = []
for k, v in anns.items():
if k in mapping:
rule = mapping[k]
support = rule.get("support", "unsupported")
haproxy_key = rule.get("haproxy")
rule = mapping.get(k)
if support == "full":
new_anns[haproxy_key] = v
report["converted"].append(k)
if not rule:
converted.append({"haproxy": k, "value": v})
continue
elif support == "partial":
new_anns[haproxy_key] = v
note = rule.get("note", "")
new_anns.yaml_set_comment_before_after_key(
haproxy_key,
before=f"PARTIAL SUPPORT: {note}",
)
report["partial"].append(k)
report["detail"][ingress_id]["partial"].append(
{
"nginx": k,
"haproxy": haproxy_key,
"note": note,
}
)
support = rule.get("support", "unsupported")
haproxy_key = rule.get("haproxy")
note = rule.get("note", "no HAProxy equivalent")
else:
lines = [f"UNSUPPORTED {k}:"]
for line in str(v).splitlines():
lines.append(f" {line}")
new_anns.yaml_set_end_comment("\n".join(lines))
if support == "full" and haproxy_key:
converted.append({"haproxy": haproxy_key, "value": v})
report["converted"].append(k)
elif support == "partial" and haproxy_key:
partial.append(
{"haproxy": haproxy_key, "value": v, "note": note}
)
report["partial"].append(k)
report["detail"][ingress_id]["partial"].append(
{"nginx": k, "haproxy": haproxy_key, "note": note}
)
report["unsupported"].append(k)
report["detail"][ingress_id]["unsupported"].append(
{
"nginx": k,
"value": v,
}
)
else:
new_anns[k] = v
unsupported.append(
{"key": k, "value": v, "note": note}
)
report["unsupported"].append(k)
report["detail"][ingress_id]["unsupported"].append(
{"nginx": k, "value": v, "note": note}
)
meta["annotations"] = new_anns
meta["annotations"] = CommentedMap()
item["_rendered_annotations"] = render_annotations_block(
unsupported, partial, converted
)
return new, report
@@ -121,51 +147,78 @@ def write_report(report, path):
f.write(f"- Unsupported: {len(report['unsupported'])}\n\n")
f.write("---\n\n")
if any(v["partial"] for v in report["detail"].values()):
f.write("## ⚠️ Partial Support\n\n")
for ingress, items in report["detail"].items():
if not items["partial"]:
continue
f.write(f"### {ingress}\n")
for p in items["partial"]:
f.write(
f"- {p['nginx']}\n"
f" - mapped to: {p['haproxy']}\n"
f" - note: {p['note']}\n"
)
f.write("\n")
for ingress, detail in report["detail"].items():
if not detail["partial"] and not detail["unsupported"]:
continue
if any(v["unsupported"] for v in report["detail"].values()):
f.write("## ❌ Unsupported\n\n")
for ingress, items in report["detail"].items():
if not items["unsupported"]:
continue
f.write(f"### {ingress}\n")
for u in items["unsupported"]:
f.write(f"- {u['nginx']}\n")
f.write(" ```nginx\n")
f.write(f"{u['value']}\n")
f.write(" ```\n")
f.write("\n")
f.write(f"## {ingress}\n\n")
for p in detail["partial"]:
f.write(
f"- PARTIAL {p['nginx']} → {p['haproxy']}\n"
f" - note: {p['note']}\n"
)
for u in detail["unsupported"]:
f.write(
f"- UNSUPPORTED {u['nginx']}\n"
f" - note: {u['note']}\n"
)
f.write("\n")
# -----------------------------
# 파일 저장
# 파일 저장 (split)
# -----------------------------
def save_single(data, out_path):
with open(out_path, "w") as f:
yaml.dump(data, f)
def save_split(data, out_dir):
Path(out_dir).mkdir(parents=True, exist_ok=True)
for item in data.get("items", []):
rendered = item.pop("_rendered_annotations", "")
name = item["metadata"]["name"]
namespace = item["metadata"].get("namespace", "default")
path = Path(out_dir) / f"{namespace}__{name}.yaml"
with open(path, "w") as f:
yaml.dump(item, f)
if rendered:
content = path.read_text()
content = content.replace(
"metadata:\n",
"metadata:\n annotations:\n" + rendered + "\n",
1,
)
path.write_text(content)
# -----------------------------
# 파일 저장 (single)
# -----------------------------
def save_single(data, out_path):
rendered_map = {}
for item in data.get("items", []):
rendered_map[id(item)] = item.pop("_rendered_annotations", "")
path = Path(out_path)
with path.open("w") as f:
yaml.dump(data, f)
content = path.read_text()
for item in data.get("items", []):
rendered = rendered_map.get(id(item))
if rendered:
content = content.replace(
"metadata:\n",
"metadata:\n annotations:\n" + rendered + "\n",
1,
)
path.write_text(content)
# -----------------------------
# main
@@ -180,9 +233,7 @@ def main():
parser.add_argument("--out", default="output")
parser.add_argument("--ingress-class")
parser.add_argument(
"--report",
default="migration-report.md",
help="migration summary report file",
"--report", default="migration-report.md"
)
args = parser.parse_args()
@@ -194,9 +245,7 @@ def main():
mapping = load_mapping(args.mapping)
converted, report = migrate_ingress(
ingress,
mapping,
ingress_class=args.ingress_class,
ingress, mapping, ingress_class=args.ingress_class
)
if args.single:
@@ -217,3 +266,4 @@ def main():
if __name__ == "__main__":
main()