Files
podman-mvp/control/app.py
T
2026-02-21 12:04:21 +01:00

1050 lines
35 KiB
Python

import os
import sys
import subprocess
from app_images import init_images_router
from fastapi import FastAPI, HTTPException, Query
from pydantic import BaseModel
import requests_unixsocket
import uvicorn
import asyncio
import json
from pathlib import Path
from fastapi.responses import StreamingResponse
app = FastAPI(title="Podman MVP Control Plane", root_path="/api")
SESSION = requests_unixsocket.Session()
PODMAN_API_BASE = "http+unix://%2Frun%2Fuser%2F1000%2Fpodman%2Fpodman.sock/v5.4.2"
BASE_DIR = os.path.dirname(os.path.abspath(__file__))
ALLOWLIST_FILE = os.getenv("ALLOWLIST_FILE", os.path.join(BASE_DIR, "allowed_units.txt"))
WORKLOADS_DIR = "/app/workloads"
# --- ROUTERS ---
# Images API lives in a dedicated module to keep this file from growing further.
app.include_router(init_images_router(SESSION, PODMAN_API_BASE))
# --- ADAPTERS (contract-neutral helpers) ---
# Centralize Podman socket and systemctl invocation.
# MUST NOT change endpoint outputs, status codes, or side-effects.
def _podman_get_json(url: str):
return SESSION.get(url).json()
def _podman_get_text(url: str) -> str:
return SESSION.get(url).text
def _podman_post(url: str, **kwargs):
return SESSION.post(url, **kwargs)
def _podman_action_post(kind: str, name: str, action: str):
if kind == "pods":
url = f"{PODMAN_API_BASE}/libpod/pods/{name}/{action}"
else:
url = f"{PODMAN_API_BASE}/libpod/containers/{name}/{action}"
return _podman_post(url)
def _podman_delete(url: str):
return SESSION.delete(url)
def _systemctl(cmd):
# Proxy to existing run() to avoid behavioral changes.
return run(cmd)
def _run_systemctl_action(action: str, unit: str):
cmd = ["systemctl", "--user", action, unit]
return _systemctl(cmd)
# --- MODELS ---
class FileContent(BaseModel):
content: str
# --- WORKLOADS ---
@app.get("/workloads")
def list_workloads():
workloads = []
for root, _, files in os.walk(WORKLOADS_DIR):
for f in files:
if f.endswith((".yaml", ".yml", ".json")):
full = os.path.join(root, f)
rel = os.path.relpath(full, WORKLOADS_DIR)
workloads.append(rel)
return {"workloads": workloads}
@app.get("/workloads/read/{filename:path}")
def read_workload(filename: str):
path = os.path.join(WORKLOADS_DIR, filename)
if not os.path.exists(path):
raise HTTPException(404)
with open(path, 'r') as f:
content = f.read()
return {"filename": filename, "content": content}
@app.post("/workloads/save-file")
def save_workload_file(data: dict):
path = data.get("path")
content = data.get("content")
full_path = os.path.join(WORKLOADS_DIR, path)
os.makedirs(os.path.dirname(full_path), exist_ok=True)
with open(full_path, "w") as f:
f.write(content)
return {"status": "success"}
@app.post("/workloads/deploy/{filename:path}")
def deploy_workload(filename: str):
path = os.path.join(WORKLOADS_DIR, filename)
with open(path, 'r') as f:
yaml_content = f.read()
url = f"{PODMAN_API_BASE}/libpod/kube/play"
return _podman_post(url, data=yaml_content).json()
# --- FILE RESTRICTIONS ---
def safe_join(base, path):
# prevent traversal
base = os.path.abspath(base)
final = os.path.abspath(os.path.join(base, path))
if not final.startswith(base):
raise HTTPException(status_code=403, detail="Forbidden path")
return final
# STEP 4: Centralize WORKLOADS_DIR subtree enforcement via one helper.
# MUST be behavior-identical to previous safe_join(WORKLOADS_DIR, ...) calls.
def _files_safe_join(path: str) -> str:
return safe_join(WORKLOADS_DIR, path)
# --- FILES API ---
@app.get("/files/tree")
def file_tree():
root = WORKLOADS_DIR
result = []
for dirpath, dirnames, filenames in os.walk(root):
rel = os.path.relpath(dirpath, root)
if rel == ".":
rel = ""
result.append({
"path": rel,
"dirs": sorted(dirnames),
"files": sorted(filenames),
})
return result
@app.get("/files/read")
def file_read(path: str = Query(...)):
full = _files_safe_join(path)
if not os.path.exists(full):
raise HTTPException(status_code=404, detail="Not found")
if os.path.isdir(full):
raise HTTPException(status_code=403, detail="Is a directory")
with open(full, "r") as f:
content = f.read()
return {"content": content}
@app.post("/files/save")
def file_save(path: str = Query(...), data: FileContent = None):
full = _files_safe_join(path)
os.makedirs(os.path.dirname(full), exist_ok=True)
with open(full, "w") as f:
f.write(data.content)
return {"status": "success", "path": path}
@app.delete("/files/delete")
def file_delete(path: str = Query(...)):
full = _files_safe_join(path)
if not os.path.exists(full):
raise HTTPException(status_code=404, detail="Not found")
if os.path.isdir(full):
raise HTTPException(status_code=400, detail="Kan niet verwijderen: is directory")
try:
os.remove(full)
except Exception as e:
raise HTTPException(status_code=400, detail=f"Kan niet verwijderen: {e}")
return {"status": "deleted", "type": "file"}
@app.post("/files/mkdir")
def file_mkdir(path: str = Query(...)):
# UI expects operations under systemd/; enforce prefix if absent.
if not path.startswith("systemd"):
path = os.path.join("systemd", path)
full = _files_safe_join(path)
os.makedirs(full, exist_ok=True)
return {"status": "directory created", "path": path}
@app.delete("/files/rmdir")
def file_rmdir(path: str = Query(..., description="Directory path under systemd/")):
# Only allow deletion under systemd subtree
if not path or path == "systemd" or path == "systemd/":
raise HTTPException(status_code=400, detail="Refusing to delete systemd root")
if not path.startswith("systemd/") and path != "systemd":
raise HTTPException(status_code=400, detail="Only systemd subtree is allowed")
full = _files_safe_join(path)
if not os.path.exists(full):
raise HTTPException(status_code=404, detail="Directory not found")
if not os.path.isdir(full):
raise HTTPException(status_code=400, detail="Path is not a directory")
# directory must be empty
try:
Path(full).rmdir()
except OSError:
# not empty
# build a stable detail payload
try:
dirs = []
files = []
for entry in os.listdir(full):
p = os.path.join(full, entry)
if os.path.isdir(p):
dirs.append(entry)
else:
files.append(entry)
except Exception:
dirs, files = [], []
raise HTTPException(status_code=409, detail={
"error": "directory not empty",
"dirs": sorted(dirs),
"files": sorted(files),
})
return {"deleted": True, "path": path}
# --- PODS / CONTAINERS ---
@app.get("/pods")
def list_pods():
# Cruciaal: ?all=true zorgt dat EXIT_STATE pods ook getoond worden
url = f"{PODMAN_API_BASE}/libpod/pods/json?all=true"
return _podman_get_json(url)
@app.post("/actions/{action}/{name}")
def take_action(action: str, name: str):
# Legacy endpoint (keep behavior)
possible_names = [name, f"pod{name}", f"pod-{name}"]
if action == "start":
# STAP 1: Probeer direct de pod te starten (de 'Cockpit' methode)
for target in possible_names:
res = _podman_post(f"{PODMAN_API_BASE}/libpod/pods/{target}/start")
if res.status_code in (200, 204):
return {"status": "started", "target": target, "method": "direct"}
# STAP 2: Als direct starten faalt, probeer dan YAML opnieuw te deployen
target_path = None
for ext in (".yaml", ".yml"):
cand = os.path.join(WORKLOADS_DIR, f"{name}{ext}")
if os.path.exists(cand):
target_path = cand
break
if target_path:
with open(target_path, 'r') as file:
yaml_content = file.read()
res = _podman_post(f"{PODMAN_API_BASE}/libpod/kube/play", data=yaml_content)
# SPECIALE CASE: Pod bestaat al, forceer dan restart
if res.status_code == 500 and "already exists" in res.text:
print(f"DEBUG: Forceer herstart voor {name} wegens conflict")
for target in possible_names:
_podman_delete(f"{PODMAN_API_BASE}/libpod/pods/{target}?force=true")
# Probeer het nu opnieuw
retry_res = _podman_post(f"{PODMAN_API_BASE}/libpod/kube/play", data=yaml_content)
return retry_res.json()
return res.json()
return {"status": "unknown", "method": "no_yaml_found"}
if action == "stop":
for target in possible_names:
res = _podman_post(f"{PODMAN_API_BASE}/libpod/pods/{target}/stop")
if res.status_code in (200, 204):
return {"status": "stopped", "target": target}
return {"status": "not found"}
return {"status": "unknown"}
# --- DASHBOARD HELPERS (contract-neutral, no ordering/sorting changes) ---
def _build_pod_to_containers_map(containers: list):
# preserves original order of containers processing; no sorting added
pod_to_containers = {}
for c in containers:
pod_name = c.get("PodName") or ""
if pod_name:
pod_to_containers.setdefault(pod_name, []).append((c.get("Names") or ["?"])[0])
return pod_to_containers
def _map_pod_to_unit(podname: str) -> str | None:
"""
HOTFIX 3.1 FIX 1:
If podname starts with "pod", map to <rest>.service (e.g. podmediaserver -> mediaserver.service)
Else: <podname>.service
"""
if not podname:
return None
if podname.startswith("pod"):
return f"{podname[3:]}.service"
return f"{podname}.service"
def _append_podman_pods_dashboard_rows(dashboard: list, api_pods: list, pod_to_containers: dict):
# preserves original api_pods iteration order
for p in api_pods:
name = p.get("Name")
status = p.get("Status", "unknown")
unit = _map_pod_to_unit(name) if name else ""
dashboard.append({
"Name": name,
"Status": status,
"Containers": pod_to_containers.get(name, []),
"Unit": unit,
"Source": "podman",
})
def _append_defined_pods_dashboard_rows(dashboard: list, by_name: dict, root_dir: str):
# preserves original os.walk order and file iteration order
for root, _, files in os.walk(root_dir):
for f in files:
if f.endswith((".yaml", ".yml")):
base = os.path.splitext(os.path.basename(f))[0]
pod_name = f"pod{base}"
unit_name = _map_pod_to_unit(pod_name)
if pod_name not in by_name:
code, out = _systemctl(["systemctl", "--user", "is-active", unit_name])
status = (out or "").strip() or ("active" if code == 0 else "inactive")
dashboard.append({
"Name": pod_name,
"Status": status,
"Containers": [],
"Unit": unit_name,
"Source": "systemd",
})
def _ensure_container_status_field(container: dict):
# keep exact existing defaulting behavior
if "Status" not in container:
container["Status"] = container.get("State", "")
def _make_defined_container_dashboard_row(name: str, relpath: str):
# keep exact key set and default values as before
return {
"Names": [name],
"Image": "",
"State": "",
"Status": "",
"Ports": [],
"PodName": "",
"_dashboard_source": "systemd",
"_dashboard_unit": f"{name}.service",
"_dashboard_def_path": relpath,
}
def _legacy_dashboard_item_from_container(c: dict):
# Keep exact keys & defaults as before
return {
"name": (c.get("Names") or ["?"])[0],
"status": c.get("Status") or c.get("State") or "",
"path": "",
"ip": "",
"containers": [],
}
@app.get("/pods-dashboard")
def pods_dashboard():
dashboard = []
# 0) Bouw mapping: pod_name -> [container_names...]
containers = _podman_get_json(f"{PODMAN_API_BASE}/libpod/containers/json?all=true")
pod_to_containers = _build_pod_to_containers_map(containers)
# 1) A) echte pods
api_pods = _podman_get_json(f"{PODMAN_API_BASE}/libpod/pods/json?all=true")
by_name = {p.get("Name"): p for p in api_pods}
_append_podman_pods_dashboard_rows(dashboard, api_pods, pod_to_containers)
# 1) B) defined pods via workloads scan
# Based on YAML files in WORKLOADS_DIR; show even if not running.
_append_defined_pods_dashboard_rows(dashboard, by_name, WORKLOADS_DIR)
return dashboard
def _systemd_then_podman(systemd_callable, podman_callable):
systemd_res = systemd_callable()
if systemd_res is not None:
if isinstance(systemd_res, dict) and systemd_res.get("exit", 1) == 0:
return systemd_res
return podman_callable(systemd_res)
return podman_callable(None)
def try_systemd_pod_action(action: str, podname: str):
# If systemd unit exists/allowed, prefer it.
unit = _map_pod_to_unit(podname)
if not unit:
return None
code, out = _systemctl(["systemctl", "--user", action, unit])
return {
"method": "systemd",
"pod": podname,
"unit": unit,
"cmd": f"systemctl --user {action} {unit}",
"exit": code,
"output": out,
}
@app.post("/pods/actions/{action}/{podname}")
def pod_action_prefer_systemd(action: str, podname: str):
if action not in ("start", "stop", "restart"):
return {"error": "Invalid action"}, 400
def _systemd_call():
return try_systemd_pod_action(action, podname)
def _podman_call(systemd_res):
if systemd_res:
note = "systemd failed; falling back to podman"
podman = _podman_action_post("pods", podname, action).json()
return {"method": "systemd_then_podman", "note": note, "systemd": systemd_res, "podman": podman}
return {"method": "podman", "result": _podman_action_post("pods", podname, action).json()}
return _systemd_then_podman(_systemd_call, _podman_call)
def find_defined_containers():
defined = {}
for root, _, files in os.walk(os.path.join(WORKLOADS_DIR, "systemd")):
for f in files:
if f.endswith(".container"):
name = os.path.splitext(f)[0]
full = os.path.join(root, f)
rel = os.path.relpath(full, WORKLOADS_DIR)
defined[name] = rel
return defined
def _extract_published_ports(container: dict) -> list[str]:
"""
Normalize Podman API Ports into a stable display list:
- "127.0.0.1:8080:8000/tcp"
- "8080:8000/tcp" (if no host ip)
"""
out: list[str] = []
for p in (container.get("Ports") or []):
host_ip = p.get("host_ip") or p.get("HostIp") or ""
host_port = p.get("host_port") or p.get("HostPort")
cont_port = p.get("container_port") or p.get("ContainerPort")
proto = p.get("protocol") or p.get("Protocol") or ""
if host_port is None or cont_port is None:
continue
s = ""
if host_ip:
s += f"{host_ip}:"
s += f"{host_port}:{cont_port}"
if proto:
s += f"/{proto}"
out.append(s)
return out
@app.get("/containers-dashboard")
def containers_dashboard():
dashboard = []
defined = find_defined_containers()
# Cache zodat we niet voor elke container opnieuw systemctl doen
unit_active_cache = {}
def _unit_is_active(unit):
if not unit:
return False
if unit in unit_active_cache:
return unit_active_cache[unit]
code, out = _systemctl(["systemctl", "--user", "is-active", unit])
ok = (code == 0) or ((out or "").strip() == "active")
unit_active_cache[unit] = ok
return ok
# A) echte containers (runtime)
real = _podman_get_json(f"{PODMAN_API_BASE}/libpod/containers/json?all=true")
for c in real:
_ensure_container_status_field(c)
# Published ports: behoud jouw hotfix
c["_dashboard_published_ports"] = _extract_published_ports(c)
# Normaliseer naam: Podman kan "/name" geven
rname = ((c.get("Names") or ["?"])[0] or "").lstrip("/")
# 1) Managed: systemd als er een .container definitie bestaat
if rname in defined:
c["_dashboard_source"] = "systemd"
c["_dashboard_unit"] = f"{rname}.service"
c["_dashboard_def_path"] = defined[rname]
else:
# 2) Extra: zit container in een pod die via systemd (kube/quadlet) draait?
podname = (c.get("PodName") or "").strip()
pod_unit = _map_pod_to_unit(podname) if podname else None
if pod_unit and _unit_is_active(pod_unit):
c["_dashboard_source"] = "systemd"
c["_dashboard_unit"] = pod_unit
# geen _dashboard_def_path, want dit is geen .container definitie
else:
c["_dashboard_source"] = "podman"
dashboard.append(c)
# B) Dedup set: ook genormaliseerd (voorkomt /name vs name doublures)
runtime_names = set((((c.get("Names") or ["?"])[0] or "").lstrip("/")) for c in real)
# C) defined containers from systemd/*.container (skip duplicates)
for name, relpath in defined.items():
if name in runtime_names:
continue
row = _make_defined_container_dashboard_row(name, relpath)
code, out = _systemctl(["systemctl", "--user", "is-active", f"{name}.service"])
row["Status"] = (out or "").strip()
dashboard.append(row)
return dashboard
@app.get("/containers")
def list_containers():
# Ook hier ?all=true voor gestopte containers
url = f"{PODMAN_API_BASE}/libpod/containers/json?all=true"
return _podman_get_json(url)
@app.post("/containers/{action}/{name}")
def container_action(action: str, name: str):
if action not in ("start", "stop", "restart"):
return {"error": "Invalid action"}, 400
defined = find_defined_containers()
_sys = {"code": None, "out": None}
def _systemd_call():
if name in defined:
code, out = _systemctl(["systemctl", "--user", action, name])
_sys["code"] = code
_sys["out"] = out
if code == 0:
return {
"method": "systemd",
"name": name,
"unit": f"{name}.service",
"definition": defined[name],
"cmd": f"systemctl --user {action} {name}",
"exit": code,
"output": out,
}
return {"exit": code, "output": out}
return None
def _podman_call(systemd_res):
res = _podman_action_post("containers", name, action)
if res.status_code in (200, 204):
return {"method": "podman", "name": name, "cmd": f"podman {action} {name}", "status_code": res.status_code}
if res.status_code >= 400:
return {
"method": "podman",
"name": name,
"cmd": f"podman {action} {name}",
"status_code": res.status_code,
"error": getattr(res, "text", "") or "",
}, res.status_code
if name in defined:
return {
"method": "systemd",
"name": name,
"unit": f"{name}.service",
"definition": defined[name],
"cmd": f"systemctl --user {action} {name}",
"exit": _sys["code"],
"output": _sys["out"],
}
return {"method": "podman", "name": name, "cmd": f"podman {action} {name}", "status_code": res.status_code}
return _systemd_then_podman(_systemd_call, _podman_call)
@app.get("/debug/defined-containers")
def debug_defined_containers():
return find_defined_containers()
@app.get("/dashboard")
def get_dashboard():
# Legacy dashboard view (keep shape)
try:
api_containers = _podman_get_json(f"{PODMAN_API_BASE}/libpod/containers/json?all=true")
except:
api_containers = []
items = []
for c in api_containers:
items.append(_legacy_dashboard_item_from_container(c))
return items
@app.get("/test-hybrid")
def test_hybrid():
# 1. Check filesystem
try:
bestanden = []
for root, _, files in os.walk(WORKLOADS_DIR):
for f in files:
bestanden.append(os.path.join(root, f))
except Exception as e:
bestanden = f"FS Fout: {str(e)}"
# 2. Check Podman API
try:
api_containers = _podman_get_json(f"{PODMAN_API_BASE}/libpod/containers/json?all=true")
except Exception as e:
api_containers = f"API Fout: {str(e)}"
return {
"bestanden_gevonden": bestanden if isinstance(bestanden, list) else [],
"api_containers_aantal": len(api_containers) if isinstance(api_containers, list) else -1,
"api_raw_sample": api_containers[0] if isinstance(api_containers, list) and api_containers else api_containers,
}
@app.get("/containers/logs/{name}")
def get_container_logs(name: str):
# We vragen de laatste 100 regels op (tail=100)
txt = _podman_get_text(f"{PODMAN_API_BASE}/libpod/containers/{name}/logs?stdout=true&stderr=true&tail=100")
# Podman logs komen vaak met wat binaire metadata, we decoden dit als tekst
return {"logs": txt}
@app.get("/containers/inspect/{name}")
def inspect_container(name: str):
return _podman_get_json(f"{PODMAN_API_BASE}/libpod/containers/{name}/json")
# --- SYSTEMD allowlist ---
def read_allowlist():
units = []
if os.path.exists(ALLOWLIST_FILE):
with open(ALLOWLIST_FILE, "r") as f:
for line in f:
u = line.strip()
if u and u.endswith(".service"):
units.append(u)
return sorted(set(units))
def list_unit_files():
# fallback (als allowlist leeg is): probeer systemctl list-unit-files
code, out = _systemctl(["systemctl", "--user", "list-unit-files", "--type=service", "--no-pager"])
if code != 0:
return []
units = []
for line in out.splitlines():
parts = line.split()
if parts and parts[0].endswith(".service"):
units.append(parts[0])
return sorted(set(units))
def unit_state(unit):
# active state
_, active = _systemctl(["systemctl", "--user", "is-active", unit])
active = active.splitlines()[0].strip() if active else "unknown"
# enabled state (kan falen in container-context)
code, enabled_out = _systemctl(["systemctl", "--user", "is-enabled", unit])
enabled = enabled_out.splitlines()[0].strip() if (enabled_out and code == 0) else "unknown"
return active, enabled
@app.get("/systemd/allowlist")
def systemd_allowlist():
units = read_allowlist()
allow_mode = len(units) > 0
if not units:
units = list_unit_files()
return {"allow_mode": allow_mode, "units": units}
@app.post("/daemon-reload")
def api_daemon_reload():
try:
code, out = _systemctl(["systemctl", "--user", "daemon-reload"])
return {
"cmd": "systemctl --user daemon-reload",
"exit": code,
"output": out,
}
except Exception as e:
raise HTTPException(status_code=500, detail=str(e))
@app.post("/{action}/{unit}")
def api_action(action: str, unit: str):
if action not in ("status", "start", "stop", "restart"):
raise HTTPException(status_code=400, detail="Invalid action")
units = read_allowlist()
allow_mode = len(units) > 0
if allow_mode and unit not in units:
raise HTTPException(status_code=403, detail="Unit not allowed by allowlist")
cmd = ["systemctl", "--user", action, unit]
code, out = _run_systemctl_action(action, unit)
return {"cmd": " ".join(cmd), "exit": code, "output": out}
@app.post("/api/<action>/<unit>")
def legacy_api_action(action: str, unit: str):
# legacy flask-like path; keep behavior (even if not used by index.html)
if action not in ("status", "start", "stop", "restart"):
return {"error": "Invalid action"}, 400
cmd = ["systemctl", "--user", action, unit]
code, out = _run_systemctl_action(action, unit)
return {"cmd": " ".join(cmd), "exit": code, "output": out}
def run(cmd):
try:
result = subprocess.run(cmd, capture_output=True, text=True, check=False)
output = (result.stdout or "") + (result.stderr or "")
return result.returncode, output.strip()
except Exception as e:
return 1, str(e)
# ENDPOINT TOEGEVOEGD NA CHATGPT
@app.get("/containers/stats/stream")
async def containers_stats_stream(interval: float = 2.0):
"""
SSE stream met periodieke container stats.
Contract-neutraal: nieuw endpoint, geen bestaande outputs aangepast.
"""
# Guardrails tegen misbruik
if interval < 0.5:
interval = 0.5
if interval > 30:
interval = 30
stats_url = f"{PODMAN_API_BASE}/libpod/containers/stats?all=true&stream=false"
async def event_gen():
try:
while True:
# timeout zodat een haperende podman socket niet je stream “bevriest”
try:
data = SESSION.get(stats_url, timeout=5).json()
except Exception as e:
data = {"Error": str(e), "Stats": []}
payload = {
"ts": int(__import__("time").time()),
"data": data,
}
yield "event: stats\n"
yield f"data: {json.dumps(payload, separators=(',',':'))}\n\n"
await asyncio.sleep(interval)
except asyncio.CancelledError:
return
headers = {
"Cache-Control": "no-cache",
"Connection": "keep-alive",
"X-Accel-Buffering": "no", # helpt bij proxies
}
return StreamingResponse(event_gen(), media_type="text/event-stream", headers=headers)
# --- PODMAN NETWORKS (nieuw) ---
def _podman_get_json_checked(url: str):
r = SESSION.get(url)
if r.status_code >= 400:
raise HTTPException(status_code=502, detail=f"Podman API fout {r.status_code}: {r.text}")
try:
return r.json()
except Exception:
raise HTTPException(status_code=502, detail=f"Podman API gaf geen JSON terug: {r.text[:2000]}")
def _deep_get(d, path, default=None):
cur = d
for key in path:
if not isinstance(cur, dict) or key not in cur:
return default
cur = cur[key]
return cur
@app.get("/networks")
def list_networks():
# Libpod: /libpod/networks/json
url = f"{PODMAN_API_BASE}/libpod/networks/json"
return {"networks": _podman_get_json_checked(url)}
@app.get("/networks/meta")
def networks_meta():
candidates = [
f"{PODMAN_API_BASE}/libpod/info",
f"{PODMAN_API_BASE}/libpod/info/json",
f"{PODMAN_API_BASE}/info",
f"{PODMAN_API_BASE}/info/json",
f"{PODMAN_API_BASE}/libpod/system/info",
f"{PODMAN_API_BASE}/libpod/system/info/json",
]
last_err = None
info = None
used = None
for url in candidates:
r = SESSION.get(url)
if r.status_code == 200:
used = url
try:
info = r.json()
except Exception:
raise HTTPException(status_code=502, detail=f"Podman info endpoint gaf geen JSON terug: {url}")
break
last_err = f"{r.status_code}: {r.text}"
if info is None:
raise HTTPException(status_code=502, detail=f"Podman info endpoint niet gevonden. Laatste fout: {last_err}")
network_backend = (
_deep_get(info, ["host", "networkBackend"]) or
_deep_get(info, ["Host", "NetworkBackend"]) or
_deep_get(info, ["host", "network", "backend"]) or
_deep_get(info, ["Host", "Network", "Backend"])
)
rootless = (
_deep_get(info, ["host", "rootless"]) or
_deep_get(info, ["Host", "Rootless"]) or
_deep_get(info, ["host", "security", "rootless"]) or
_deep_get(info, ["Host", "Security", "Rootless"])
)
if not isinstance(rootless, bool):
rootless = None
return {
"networkBackend": network_backend,
"rootless": rootless,
"infoEndpoint": used,
}
@app.get("/networks/usage")
def networks_usage():
"""
Bouwt mapping netwerk -> containers/pods, en container -> netwerken.
Werkt betrouwbaar ook als network inspect geen containers toont.
"""
# 1) containers list (all=true)
url = f"{PODMAN_API_BASE}/libpod/containers/json?all=true"
containers = _podman_get_json_checked(url) or []
by_network: dict[str, dict] = {}
by_container: dict[str, list[str]] = {}
by_container_meta: dict[str, dict] = {}
def _norm_name(c: dict) -> str:
# Podman kan Names (list) of Name (string) geven.
n = c.get("Name")
if isinstance(n, str) and n:
return n
names = c.get("Names")
if isinstance(names, list) and names:
# vaak begint dit met "/name"
nm = str(names[0]).lstrip("/")
return nm
# fallback id
cid = c.get("Id") or c.get("id") or ""
return cid[:12] if cid else "(unknown)"
def _norm_id(c: dict) -> str:
return c.get("Id") or c.get("id") or ""
def _pod_name(c: dict) -> str | None:
# Verschilt per output; we proberen een paar logische keys
for k in ("PodName", "pod", "Pod", "PodID", "PodId"):
v = c.get(k)
if isinstance(v, str) and v and v != "": # PodID is geen naam, maar beter dan niks
return v
return None
def _extract_networks_from_summary(c: dict) -> list[str] | None:
# Mogelijke structuren in list output
nets = c.get("Networks")
if isinstance(nets, dict):
return list(nets.keys())
if isinstance(nets, list):
return [str(x) for x in nets if x]
ns = c.get("NetworkSettings")
if isinstance(ns, dict):
nets2 = ns.get("Networks")
if isinstance(nets2, dict):
return list(nets2.keys())
# Sommige builds hebben NetworkNames
nn = c.get("NetworkNames")
if isinstance(nn, list):
return [str(x) for x in nn if x]
return None
def _extract_networks_from_inspect(cid: str) -> tuple[list[str], dict]:
"""
Returns: (networks, extra_info)
extra_info kan bv. networkMode/containerOwner bevatten.
"""
if not cid:
return ([], {})
insp = _podman_get_json_checked(f"{PODMAN_API_BASE}/libpod/containers/{cid}/json")
extra: dict = {}
# 1) normale inspect: NetworkSettings.Networks
ns = insp.get("NetworkSettings") if isinstance(insp, dict) else None
if isinstance(ns, dict):
nets = ns.get("Networks")
if isinstance(nets, dict):
return (list(nets.keys()), extra)
# 2) container network namespace mode: HostConfig.NetworkMode = "container:<id>"
hc = insp.get("HostConfig") if isinstance(insp, dict) else None
if isinstance(hc, dict):
nm = hc.get("NetworkMode")
if isinstance(nm, str) and nm.startswith("container:"):
owner_id = nm.split("container:", 1)[1]
extra["networkMode"] = nm
extra["networkOwnerId"] = owner_id
# Inspect owner container en pak diens netwerken
owner = _podman_get_json_checked(f"{PODMAN_API_BASE}/libpod/containers/{owner_id}/json")
# 1) netwerken van owner vinden (meerdere varianten)
owner_ns = owner.get("NetworkSettings") or {}
owner_nets = owner_ns.get("Networks")
# fallback: sommige outputs hebben dit anders of leeg
if not isinstance(owner_nets, dict) or not owner_nets:
owner_nets = (
(owner.get("networkSettings") or {}).get("Networks") or
(owner.get("Network") or {}).get("Networks")
)
# 2) owner naam vinden (meerdere varianten)
owner_name = None
# meest voorkomend bij inspect
if isinstance(owner.get("Name"), str) and owner.get("Name"):
owner_name = owner.get("Name")
# fallback: soms staat het in Config.Name
if not owner_name:
cfg = owner.get("Config") or {}
if isinstance(cfg.get("Name"), str) and cfg.get("Name"):
owner_name = cfg.get("Name")
# fallback: soms in ContainerConfig
if not owner_name:
ccfg = owner.get("ContainerConfig") or {}
if isinstance(ccfg.get("Name"), str) and ccfg.get("Name"):
owner_name = ccfg.get("Name")
# fallback: als niets werkt, toon korte id
if not owner_name:
owner_name = owner_id[:12]
extra["networkOwnerName"] = str(owner_name).lstrip("/")
# 3) netwerken returnen (als we ze gevonden hebben)
if isinstance(owner_nets, dict) and owner_nets:
return (list(owner_nets.keys()), extra)
# als owner_nets niet bruikbaar is: return leeg maar mét ownerName
return ([], extra)
return ([], extra)
# 2) Loop containers: verzamel netwerken
for c in containers:
if not isinstance(c, dict):
continue
cid = _norm_id(c)
cname = _norm_name(c)
pod = _pod_name(c)
nets = _extract_networks_from_summary(c)
extra = {}
if not nets:
nets, extra = _extract_networks_from_inspect(cid)
by_container_meta[cname] = extra
nets = [n for n in (nets or []) if isinstance(n, str) and n]
# byContainer blijft lijst (contract simpel houden)
by_container[cname] = sorted(set(nets))
for n in nets:
slot = by_network.setdefault(n, {"containers": [], "pods": []})
slot["containers"].append({
"id": cid,
"name": cname,
"pod": pod,
**extra, # voegt networkMode/owner info toe indien van toepassing
})
# 3) Pods afleiden (lightweight) via containers
for n, slot in by_network.items():
pods = sorted({c.get("pod") for c in slot["containers"] if isinstance(c.get("pod"), str) and c.get("pod")})
slot["pods"] = [{"name": p} for p in pods]
return {"byNetwork": by_network, "byContainer": by_container, "byContainerMeta": by_container_meta}
@app.get("/networks/{name}")
def inspect_network(name: str):
url1 = f"{PODMAN_API_BASE}/libpod/networks/{name}/json"
r = SESSION.get(url1)
if r.status_code == 200:
return _podman_get_json_checked(url1)
url2 = f"{PODMAN_API_BASE}/libpod/network/{name}/json"
return _podman_get_json_checked(url2)
if __name__ == "__main__":
uvicorn.run(app, host="0.0.0.0", port=8000)