256 lines
8.9 KiB
Python
256 lines
8.9 KiB
Python
"""Release a verified source bundle on the Ubuntu T7 host; never write to frames."""
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import datetime
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import fcntl
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import hashlib
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import json
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import os
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import re
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import shutil
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import sqlite3
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import subprocess
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import time
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import urllib.request
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from pathlib import Path
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APP = Path("/srv/pigway/apps/pigway-frame-flow")
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RECOVERY = Path("/srv/pigway/recovery/frame-flow")
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CONTAINER = "pigway-frame-flow"
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ORIGIN = "http://192.0.2.10:81"
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def run(*args):
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return subprocess.check_output(args, text=True, timeout=600).strip()
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def inspect():
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return json.loads(run("docker", "inspect", CONTAINER))[0]
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def archive_staging(backup, ctx):
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# These are retired Frame-only inputs, never shared console migration files.
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names = [
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"frame-schedule-ui",
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"frame-photos-ui",
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"frame-final-status.sh",
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"frame-compose.candidate.private.json",
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"frame-fresh-compose.private.json",
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"frame-image.tar",
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"frame-prepare.sh",
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"frame-nfs-setup.sh",
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"frame.unit",
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"compose.ubuntu-photos-api.yml",
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]
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archive = backup / "retired-frame-staging"
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archive.mkdir(mode=0o700)
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moved = []
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for name in names:
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source = ctx.parent / name
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if source.exists():
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assert not source.is_symlink(), name
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source.rename(archive / name)
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moved.append(name)
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for p in archive.rglob("*"):
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if not p.is_symlink():
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p.chmod(0o700 if p.is_dir() else 0o600)
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# Remove only disposable aliases, preserving every recovery reference and image.
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references = "\n".join(
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p.read_text(errors="replace")
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for p in RECOVERY.rglob("*")
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if p.is_file() and p.suffix in {".json", ".txt"}
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)
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removed = []
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for tag in [
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"pigway-frame-flow:history-ui-local-base",
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"pigway-frame-flow:final-audit-local-base",
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"pigway-frame-flow:0.1.9-5d2171b9be3e",
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]:
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tags = run(
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"docker", "image", "ls", "--format", "{{.Repository}}:{{.Tag}}"
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).splitlines()
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if (
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tag in tags
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and tag not in references
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and not run("docker", "ps", "-aq", "--filter", "ancestor=" + tag)
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):
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run("docker", "image", "rm", tag)
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removed.append(tag)
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return {
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"archived_frame_inputs": moved,
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"removed_temporary_aliases": removed,
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"shared_inputs_and_recovery_preserved": True,
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}
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def wait_ready():
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for attempt in range(30):
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try:
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with urllib.request.urlopen(ORIGIN + "/ready", timeout=4) as r:
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assert json.load(r)["status"] == "ready"
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break
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except Exception:
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if attempt == 29:
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raise
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time.sleep(2)
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def verify_runtime(commit):
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c = inspect()
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env = dict(s.split("=", 1) for s in c["Config"]["Env"])
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assert env["KOKONNA_MOCK"] == "false"
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assert env["KOKONNA_WRITE_ENABLED"] == "true"
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assert env["BUILD_COMMIT"] == commit
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assert c["State"]["Running"]
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assert c["Config"]["User"] == "10333:10333"
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assert c["HostConfig"]["ReadonlyRootfs"]
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assert set(c["HostConfig"]["CapDrop"]) == {"ALL"}
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assert {m["Destination"] for m in c["Mounts"]} == {"/data", "/config"}
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for mount in c["Mounts"]:
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assert Path(mount["Source"]).resolve() == APP / mount["Destination"][1:]
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return c
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def main():
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assert os.geteuid() == 0, "Run with sudo on the Ubuntu Server"
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os.umask(0o077)
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run("/usr/local/libexec/pigway-guard-mount")
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assert run("findmnt", "-n", "-o", "UUID", "/srv/pigway") == (
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"00000000-0000-4000-8000-000000000001"
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)
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with (RECOVERY / ".release.lock").open("a") as lock:
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fcntl.flock(lock, fcntl.LOCK_EX | fcntl.LOCK_NB)
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release(lock)
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def release(lock):
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ctx = Path(__file__).resolve().parent.parent
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assert ctx.parent == Path("/srv/pigway/migration-inbox")
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commit = (ctx / "RELEASE_COMMIT").read_text().strip()
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assert re.fullmatch("[0-9a-f]{40}", commit)
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hashes = json.loads((ctx / "RELEASE_HASHES.json").read_text())
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for name, expected in hashes.items():
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p = (ctx / name).resolve()
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assert p.is_relative_to(ctx)
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assert hashlib.sha256(p.read_bytes()).hexdigest() == expected, name
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before = inspect()
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old_env = dict(s.split("=", 1) for s in before["Config"]["Env"])
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verify_runtime(old_env["BUILD_COMMIT"])
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assert run("docker", "exec", CONTAINER, "cat", "/app/requirements.lock") == (
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(ctx / "requirements.lock").read_text().strip()
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), "Dependencies differ; full build required"
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stamp = datetime.datetime.now(datetime.timezone.utc).strftime("%Y%m%dT%H%M%SZ")
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backup = RECOVERY / ("release-" + stamp + "-" + commit[:12])
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backup.mkdir(mode=0o700)
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shutil.copy2(APP / "compose.json", backup / "compose.before.json")
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shutil.copytree(APP / "config", backup / "config")
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with sqlite3.connect(
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"file:" + str(APP / "data/frameflow.db") + "?mode=ro", uri=True
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) as src:
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with sqlite3.connect(backup / "frameflow.before.db") as dst:
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src.backup(dst)
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assert dst.execute("pragma quick_check").fetchone()[0] == "ok"
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base = "pigway-frame-flow:release-base-" + commit[:12]
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run("docker", "image", "tag", before["Image"], base)
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image = "pigway-frame-flow:0.1.9-" + commit[:12]
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try:
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run(
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"docker",
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"build",
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"--pull=false",
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"--network=none",
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"-f",
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str(ctx / "deploy/Dockerfile.runtime-update"),
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"--build-arg",
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"BASE_IMAGE=" + base,
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"--build-arg",
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"BUILD_COMMIT=" + commit,
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"--build-arg",
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"BUILD_TIME=" + stamp,
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"-t",
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image,
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str(ctx),
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)
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finally:
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run("docker", "image", "rm", base)
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compose = json.loads((APP / "compose.json").read_text())
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service = compose["services"][CONTAINER]
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service["image"] = image
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service["environment"]["BUILD_COMMIT"] = commit
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service["environment"]["BUILD_TIME"] = stamp
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changed = False
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try:
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changed = True
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(APP / "compose.json").write_text(json.dumps(compose, indent=2) + "\n")
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print("Restarting Frame Flow; checking " + ORIGIN + "/ready", flush=True)
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run("systemctl", "restart", "pigway-frame-flow.service")
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wait_ready()
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current = verify_runtime(commit)
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assert current["Image"] == run(
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"docker", "image", "inspect", "--format", "{{.Id}}", image
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)
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# Verify all deployed project files, not just a version string or an image tag.
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project_hashes = {
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n: h
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for n, h in hashes.items()
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if n.startswith(("pigway_frame_flow/", "vendor/"))
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or n == "requirements.lock"
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}
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code = 'import hashlib,json,pathlib,sys; h=json.load(sys.stdin); assert all(hashlib.sha256((pathlib.Path("/app")/n).read_bytes()).hexdigest()==v for n,v in h.items())'
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subprocess.run(
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["docker", "exec", "-i", CONTAINER, "python", "-c", code],
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input=json.dumps(project_hashes),
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text=True,
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check=True,
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timeout=60,
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)
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for name in [
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"app.js",
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"features.js",
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"extensions.js",
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"i18n.js",
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"index.html",
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"style.css",
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]:
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url = ORIGIN + "/" + ("" if name == "index.html" else "ui/" + name)
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with urllib.request.urlopen(url, timeout=10) as response:
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assert (
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response.read()
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== (ctx / "pigway_frame_flow/web" / name).read_bytes()
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)
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run("systemctl", "is-active", "pigway-frame-flow.service")
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except BaseException:
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print("Release verification failed; restoring previous Compose", flush=True)
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if changed:
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shutil.copy2(backup / "compose.before.json", APP / "compose.json")
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run("systemctl", "restart", "pigway-frame-flow.service")
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raise
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shutil.copy2(APP / "compose.json", RECOVERY / "compose.json")
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(RECOVERY / "image.txt").write_text(image + "\n")
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shutil.copy2(ctx / "source.tar.gz", backup / "source.tar.gz")
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cleanup = archive_staging(backup, ctx)
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receipt = {
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"result": "PASS",
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"commit": commit,
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"image": image,
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"image_id": current["Image"],
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"backup": str(backup),
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"mock": False,
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"write_enabled": True,
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"checked_at": stamp,
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"cleanup": cleanup,
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}
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output = APP / "release-verification.json"
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output.write_text(json.dumps(receipt, indent=2) + "\n")
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owner = ctx.stat()
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os.chown(output, owner.st_uid, owner.st_gid)
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shutil.copy2(output, backup / "release-verification.json")
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public_receipt = ctx.parent / "frame-release-verification.json"
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shutil.copy2(output, public_receipt)
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os.chown(public_receipt, owner.st_uid, owner.st_gid)
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shutil.rmtree(ctx)
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print(json.dumps(receipt, indent=2))
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if __name__ == "__main__":
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main()
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